·推薦論文摘要·

中國高速鐵路的發(fā)展與技術(shù)創(chuàng)新

卿三惠，李雪梅，卿光輝

·推薦論文摘要·

中國高速鐵路的發(fā)展與技術(shù)創(chuàng)新

卿三惠，李雪梅，卿光輝

簡要介紹世界高速鐵路發(fā)展狀況，重點總結(jié)我國按照“先進、成熟、經(jīng)濟、適用、可靠”的技術(shù)方針,通過原始創(chuàng)新、集成創(chuàng)新和引進消化吸收再創(chuàng)新，在工程建設(shè)、高速列車研制、列車運行控制、系統(tǒng)集成、運營維護、客運服務(wù)等領(lǐng)域取得的重大技術(shù)創(chuàng)新成果，形成了具有自主知識產(chǎn)權(quán)的高速鐵路技術(shù)標準體系，掌握了高速鐵路設(shè)計、施工、運維等關(guān)鍵技術(shù)，實現(xiàn)了具有世界先進水平的客運動車組、施工裝備的國產(chǎn)化，標志著中國高速鐵路技術(shù)步入國際先進水平，對于實施我國“走出去”戰(zhàn)略具有重大意義。

中國高速鐵路；發(fā)展成就；技術(shù)創(chuàng)新

來源出版物：高速鐵路技術(shù)，2014, 5(1): 1-7

城際動車組總體技術(shù)設(shè)計

丁叁叁，張忠敏，何丹爐

摘要：圍繞城際動車組的定位與功能，闡明了設(shè)計原則，對城際動車組頂層技術(shù)指標進行研究，重點論述了車輛限界、車輛供電、速度等級、載客量、軸重、牽引制動等總體技術(shù)設(shè)計，介紹了CINOVA技術(shù)平臺城際動車組型譜、城際動車組研制以及30萬km運用考核情況。

關(guān)鍵詞：城際動車組；總體技術(shù)；頂層技術(shù)；型譜；

CINOVA技術(shù)平臺

來源出版物：機車電傳動, 2014, (6): 10-15

堅持自主創(chuàng)新道路 積極推進中國標準動車組研制

胡亞東

摘要：中國標準動車組研制是中國鐵路總公司組織實施的重大裝備研發(fā)項目，其目的是通過自主創(chuàng)新，構(gòu)建和完善中國動車組技術(shù)標準體系，研制具有完全自主知識產(chǎn)權(quán)的標準化、系列化、簡統(tǒng)化動車組產(chǎn)品，達到國際領(lǐng)先水平，滿足未來發(fā)展需求。同時，通過自主創(chuàng)新，增強自主開發(fā)能力，錘煉我國鐵路裝備科研團隊，為實現(xiàn)“走出去”戰(zhàn)略目標提供有力支撐。全面介紹了中國標準動車組研制的背景、目標、實施方案、總體技術(shù)方案及進展情況，指出堅持自主創(chuàng)新道路，是我國鐵路機車車輛裝備制造業(yè)順利完成中國標準動車組研制的關(guān)鍵，針對未來我國高速動車組的技術(shù)發(fā)展方向提出了建議。

關(guān)鍵詞：高鐵；中國標準；動車組；自主創(chuàng)新；標準化；系列化；簡統(tǒng)化；總體技術(shù)方案

來源出版物：中國鐵路, 2014, (8): 1-5

高速鐵路道岔尖軌降低值對行車平穩(wěn)性影響機理研究

王樹國，司道林，王猛，等

摘要：結(jié)合京滬高速鐵路黃渡線路所2號岔位42號無砟道岔處發(fā)生的“晃車”問題，運用多體動力學(xué)分析軟件NUCARS進行列車—道岔耦合系統(tǒng)的仿真分析，研究高速鐵路道岔尖軌降低值對高速列車運行平穩(wěn)性的影響機理。研究表明：高速列車過岔時出現(xiàn)晃車的原因是該道岔尖軌的實際降低值超差（比設(shè)計值偏大2.3 mm）；當(dāng)?shù)啦砑廛壗档椭党顣r，高速列車直向過岔時的輪對橫移量顯著增大，導(dǎo)致輪緣持續(xù)貼靠尖軌工作邊運行，使得輪軌水平力顯著增大，導(dǎo)致車體的橫向加速度顯著增大，從而發(fā)生“晃車”現(xiàn)象?，F(xiàn)場通過更換合適厚度的基本軌下橡膠墊板和尖軌下滑床臺調(diào)整尖軌降低值，使之滿足高速鐵路無砟軌道道岔鋪設(shè)技術(shù)條件的規(guī)定，解決了“晃車”問題，進而使動車組從限速160 km·h-1恢復(fù)常速運行。

關(guān)鍵詞：高速鐵路；道岔；尖軌降低值；行車平穩(wěn)性；輪對橫移量；車體橫向加速度

來源出版物：中國鐵道科學(xué), 2014, 35(3): 28-33

高速動車組空氣彈簧垂向動態(tài)特性研究

戚壯，李芾，黃運華，等

摘要：建立空氣彈簧的氣動流體力學(xué)模型，并推導(dǎo)空氣彈簧垂向特性與其回滯曲線幾何特征的關(guān)系式?；谠摎鈩幽Ｐ停ㄟ^靜態(tài)及動態(tài)仿真試驗，著重研究橡膠氣囊體積、附加空氣室體積及節(jié)流孔直徑三個結(jié)構(gòu)參數(shù)與空氣彈簧垂向靜態(tài)剛度、動態(tài)剛度及阻尼特性的關(guān)系。在此基礎(chǔ)上，使用包含該空氣彈簧氣動模型的高速動車組整車動力學(xué)模型，進一步研究空氣彈簧結(jié)構(gòu)參數(shù)對車輛垂向平穩(wěn)性的影響規(guī)律。計算結(jié)果表明，增大橡膠氣囊體積可有效改善車輛垂向平穩(wěn)性；附加空氣室體積達到一定值時，進一步增大對提高車輛垂向平穩(wěn)性作用不大，應(yīng)保證附加空氣室容積至少為35 L；隨著節(jié)流孔直徑的增大，車輛垂向平穩(wěn)性指標首先快速減小然后緩慢增大，說明節(jié)流孔直徑存在一較優(yōu)取值范圍，約為15～25 mm，使車輛垂向平穩(wěn)性達到最佳。

關(guān)鍵詞：高速動車組；空氣彈簧；結(jié)構(gòu)參數(shù)；垂向平穩(wěn)性

來源出版物：機械工程學(xué)報, 2015, 51(10): 129-136

新一代中國高速鐵路動車組面臨的技術(shù)挑戰(zhàn)與策略研究

繆炳榮，張衛(wèi)華，鄧永權(quán)，等

摘要：基于新一代中國高速列車（動車組）關(guān)鍵技術(shù)的研究發(fā)展趨勢和策略問題進行詳細討論和技術(shù)展望。主要內(nèi)容包括：首先，介紹國際先進軌道車輛制造商在其新一代車輛開發(fā)過程中采用的先進設(shè)計技術(shù)和理念，分層次研究其各自的核心技術(shù)特點和未來其可能的技術(shù)發(fā)展趨勢。其次，在國內(nèi)外文獻研究的基礎(chǔ)上，結(jié)合中國高速鐵路車輛發(fā)展的自身特點和實際情況，針對具體的牽引傳動技術(shù)、轉(zhuǎn)向架技術(shù)、車體設(shè)計技術(shù)等可能面臨的核心技術(shù)難題，提出一些分析建議。最后，在綜合考慮軌道車輛造型發(fā)展趨勢及設(shè)計原則的基礎(chǔ)上，根據(jù)集成設(shè)計的理論與多學(xué)科優(yōu)化設(shè)計方法，針對新一代中國高速鐵路動車組可能面臨的重大技術(shù)挑戰(zhàn)與策略和改進措施的研究提出一些明確的建議?？傊?，通過本文的初步研究，希望可以對我國高速列車未來的發(fā)展方向和趨勢提出一些有益的建議。

關(guān)鍵詞：高速鐵路；高速列車；新一代；關(guān)鍵技術(shù)；集成設(shè)計；學(xué)科優(yōu)化

來源出版物：中國工程科學(xué), 2015, 17(4): 98-112

中國高速鐵路的技術(shù)特點

盧春房

摘要：高速鐵路是集多種高新技術(shù)于一身的復(fù)雜巨系統(tǒng)。中國鐵路通過大力推進原始創(chuàng)新、集成創(chuàng)新、引進消化吸收再創(chuàng)新，用短短十多年的時間走出了一條具有中國特色的高鐵發(fā)展之路，成為世界上高鐵規(guī)模最大、發(fā)展速度最快的國家。本文回顧中國高速鐵路的發(fā)展歷程，分析中國高鐵在技術(shù)、安全、性價比三方面的特點。中國高鐵的技術(shù)先進主要體現(xiàn)在運營速度高、建設(shè)環(huán)境復(fù)雜、運營場景多樣，并能與世界先進鐵路技術(shù)相兼容等方面；安全可靠主要體現(xiàn)在建立了完備的技術(shù)體系、強化工程質(zhì)量源頭管理、加強產(chǎn)品質(zhì)量準入管理、嚴格運營過程管理、開展自然災(zāi)害風(fēng)險防控等方面；性價比高主要體現(xiàn)在建設(shè)工期、建設(shè)成本、節(jié)能環(huán)保和經(jīng)濟社會效益等方面。展望了中國高鐵的未來發(fā)展，提出應(yīng)圍繞國家“一帶一路”和“走出去”戰(zhàn)略要求，研發(fā)更先進、更可靠、更經(jīng)濟的高鐵技術(shù)，確立中國鐵路在世界的領(lǐng)先地位。

關(guān)鍵詞：中國鐵路；高速鐵路；鐵路技術(shù)

來源出版物：科技導(dǎo)報, 2015, 33(18): 13-19

城際動車組網(wǎng)絡(luò)控制系統(tǒng)設(shè)計與實現(xiàn)

肖家博，楊衛(wèi)峰，李銘，等

摘要：介紹了城際動車組網(wǎng)絡(luò)控制系統(tǒng)的設(shè)計思路及系統(tǒng)架構(gòu)、主要控制功能及其特點?，F(xiàn)場幾種典型應(yīng)用表明，城際動車組網(wǎng)絡(luò)控制系統(tǒng)采用二級網(wǎng)絡(luò)結(jié)構(gòu)進行通信、控制，通過各級網(wǎng)絡(luò)的互相配合達到了列車控制的最優(yōu)狀態(tài)，為城際動車組網(wǎng)絡(luò)系統(tǒng)的技術(shù)發(fā)展與批量應(yīng)用提供了重要的保證。

關(guān)鍵詞：城際動車組；列車網(wǎng)絡(luò)控制系統(tǒng)；中央控制單元；列車編組

來源出版物：機車電傳動, 2015, (6): 18-21

中國高速鐵路牽引供電關(guān)鍵技術(shù)

錢清泉，高仕斌，何正友

摘要：本文結(jié)合中國高鐵建設(shè)和運營的經(jīng)驗，從高速鐵路牽引供電不同層面，系統(tǒng)地介紹了高鐵牽引供電系統(tǒng)的一系列關(guān)鍵技術(shù)。同時，就目前牽引供電系統(tǒng)的發(fā)展現(xiàn)狀，展望了新型供電技術(shù)、主動運營維護、節(jié)能與效能提升、檢測監(jiān)測等新技術(shù)，可為中國高鐵牽引供電技術(shù)的發(fā)展與應(yīng)用提供指導(dǎo)。

關(guān)鍵詞：高速鐵路；牽引供電系統(tǒng)；關(guān)鍵技術(shù)

來源出版物：機械工程學(xué)報, 2015, 51(10): 129-136

高速鐵路工業(yè)新材料的應(yīng)用進展

周賀祥

摘要：隨著國內(nèi)高鐵行業(yè)的不斷發(fā)展，其技術(shù)水平及創(chuàng)造能力已經(jīng)達到世界無法企及的高度，截止2015年，中國高鐵通車及運營總里程已經(jīng)超過8887 km，到2020年總里程數(shù)會增加至30000 km；結(jié)合“一帶一路”建設(shè)，洽談的國外高鐵項目多達 20個。國家在大力發(fā)展高鐵工程建設(shè)同時，提出“專用材料國產(chǎn)化”目標，為新型化工材料領(lǐng)域發(fā)展提供良好的發(fā)展契機。主要結(jié)合高鐵行業(yè)新材料應(yīng)用實踐，從軌道原料、線纜原料以及機車用化學(xué)品等方面進行應(yīng)用綜述分析，力求為推動相關(guān)領(lǐng)域的實踐發(fā)展進行有益的嘗試。

關(guān)鍵詞：新材料；高速鐵路；應(yīng)用

來源出版物：化工新型材料, 2016, 44(4): 47-48

滬昆高速鐵路綜合試驗技術(shù)

龔增進，馮仲偉，王峰，等

摘要：為進一步增強鐵路自主創(chuàng)新能力，提高我國鐵路特別是高速鐵路的技術(shù)裝備自主化水平，2014年中國鐵路總公司在滬昆高速鐵路組織開展了6大類58項綜合試驗。本文主要介紹這次綜合試驗在總體設(shè)計、組織實施、計劃管理等方面的技術(shù)創(chuàng)新。滬昆高速鐵路綜合試驗成果為深化我國高速鐵路基礎(chǔ)理論研究提供了數(shù)據(jù)支撐，對于我國高速鐵路技術(shù)實現(xiàn)新突破具有重大意義。

關(guān)鍵詞：高速鐵路；綜合試驗；試驗設(shè)計；計劃管理；高速動車組；TD-LTE；樁板結(jié)構(gòu)過渡段

來源出版物：鐵道建筑, 2016(4): 134-138

中國“四縱四橫”高鐵網(wǎng)絡(luò)可達性綜合評估與對比

姜博，初楠臣，修春亮，等

摘要：傳統(tǒng)測算可達性的方法較為單一，缺乏多層面、多角度的綜合研究和對比分析?；跁r間、經(jīng)濟與重心視角利用可達性模型并結(jié)合Arc GIS空間分析手段探究高鐵通車前后沿線城市可達性的動態(tài)變化；利用綜合變異系數(shù)、層級分析法和改進的哈夫模型分析高鐵可達性空間演變特征及規(guī)律，構(gòu)建高鐵可達性評價體系并結(jié)合熵權(quán)法定量評估各高鐵可達綜合實力。研究表明：京廣、京滬可達綜合實力最強，滬昆、杭福深次之，滬漢蓉、哈大、青太再次之，鄭西、蘭新可達實力最弱；全國高鐵可達性強弱變化呈明顯地帶性規(guī)律，東、中部高鐵可達性強于東北，東北強于西部，縱向高鐵強于橫向；經(jīng)濟潛力的增加率明顯高于加權(quán)平均旅行時間的減少率，可達性重心偏移驅(qū)使不同等時圈蔓延交疊；高鐵以“核心—核心”逐步向“核心—網(wǎng)絡(luò)”空間鏈接模式過渡，產(chǎn)生上海、北京、廣州、深圳4個高鐵“國家服務(wù)中心”，天津、武漢、重慶等6個“大區(qū)域服務(wù)中心”，形成“多中心”高鐵服務(wù)格局以及日益龐大而復(fù)雜的高鐵特質(zhì)空間集群；高鐵網(wǎng)絡(luò)影響下的中國區(qū)域空間格局的漸變與重塑日趨復(fù)雜，“T”型軸帶呈現(xiàn)出由空間極化向空間均衡轉(zhuǎn)變，跨城流動性特征突顯，加速空間對接與同城化進程。

關(guān)鍵詞：可達性；空間格局；四縱四橫；高鐵網(wǎng)絡(luò)；綜合評估；中國

來源出版物：地理學(xué)報, 2016, 71(4): 591-604

現(xiàn)代軌道交通工程科技前沿與挑戰(zhàn)

翟婉明，趙春發(fā)

摘要：圍繞現(xiàn)代軌道交通的四大重點領(lǐng)域：高速鐵路、重載鐵路、城市軌道交通和磁懸浮交通，介紹了當(dāng)前國內(nèi)外最新發(fā)展動態(tài)，特別是我國軌道交通發(fā)展現(xiàn)狀及其在國際上所處的地位與水平。結(jié)合軌道交通工程學(xué)科發(fā)展趨勢與應(yīng)用需求，分析了軌道交通工程建設(shè)與運營過程中涉及系統(tǒng)安全性、運營可靠性和環(huán)境適應(yīng)性等方面的主要技術(shù)瓶頸，指出了高速鐵路、重載鐵路、城市軌道交通和磁懸浮交通領(lǐng)域當(dāng)前值得關(guān)注的前沿科學(xué)問題和技術(shù)挑戰(zhàn)，為今后深入開展軌道交通科學(xué)技術(shù)研究（特別是針對處于快速發(fā)展期的中國軌道交通科技研究）提供有益參考。

關(guān)鍵詞：鐵道工程；軌道交通；發(fā)展動態(tài)；科技前沿；技術(shù)挑戰(zhàn)；述評

來源出版物：西南交通大學(xué)學(xué)報, 2016, 51(2): 209-226

城際鐵路與高速鐵路技術(shù)標準差異性及對聯(lián)調(diào)聯(lián)試的影響研究

劉磊，趙鑫，左自輝，等

摘要：城際鐵路與高速鐵路在功能定位、技術(shù)特點和運營管理模式等方面存在顯著差異，因而需要對城際鐵路與高速鐵路技術(shù)標準差異性及對聯(lián)調(diào)聯(lián)試的影響開展研究。通過分析城際鐵路與高速鐵路在平面最小曲線半徑、列車編組方式、列車設(shè)計活載、列車運行控制系統(tǒng)、站臺門應(yīng)用等技術(shù)標準方面的差異，提出城際鐵路聯(lián)調(diào)聯(lián)試在軌道結(jié)構(gòu)檢測測點選取、重聯(lián)動車組試驗、橋梁結(jié)構(gòu)檢測、列車運行控制系統(tǒng)測試、站臺門測試等方面的對策，并結(jié)合莞惠城際鐵路聯(lián)調(diào)聯(lián)試實例進行實施效果分析，為開展城際鐵路聯(lián)調(diào)聯(lián)試工作提供技術(shù)支撐和借鑒。

關(guān)鍵詞：城際鐵路；高速鐵路；技術(shù)標準；聯(lián)調(diào)聯(lián)試

來源出版物：鐵道運輸與經(jīng)濟, 2017, 39(5): 27-35

中國軌道交通列車運行控制技術(shù)及應(yīng)用

寧濱，劉朝英

摘要：中國的軌道交通在近十年中獲得了飛速發(fā)展，城市軌道交通有效解決了市內(nèi)交通供需矛盾，高速鐵路的發(fā)展則給城市間的交通帶來了同城效應(yīng)和零換乘的理念。但無論如何，軌道交通的安全運營是其發(fā)展的重中之重。列車運行控制系統(tǒng)是確保軌道交通安全的關(guān)鍵技術(shù)之一，在我國得到了快速地自主創(chuàng)新發(fā)展。本文詳細介紹了中國鐵路列車運行控制系統(tǒng)（CTCS）技術(shù)和城市軌道交通基于通信的列車運行控制系統(tǒng)（CBTC）技術(shù)。為實現(xiàn)綜合軌道交通網(wǎng)絡(luò)的互聯(lián)互通，軌道交通的低碳節(jié)能運營、自動化和智能化運營，實現(xiàn)資源共享的網(wǎng)絡(luò)化運營模式，軌道交通列車運行控制系統(tǒng)將向著系統(tǒng)化、網(wǎng)絡(luò)化、智能化、通信信號一體化和標準化、開放化的方向發(fā)展，通過降低系統(tǒng)復(fù)雜性、縮短列車追蹤間隔、提高系統(tǒng)防護水平等技術(shù)降低成本，提高運能和旅客滿意度，保證軌道交通的安全性和可靠性，最終實現(xiàn)安全、高效、綠色出行。

關(guān)鍵詞：高速鐵路；城市軌道交通；列車運行控制系統(tǒng)

來源出版物：鐵道學(xué)報, 2017, 39(2): 1-9

中國高速鐵路隧道的發(fā)展及規(guī)劃

趙勇，田四明，孫毅

摘要：介紹了中國高速鐵路的發(fā)展歷程，論述了隧道工程在中國高速鐵路發(fā)展中的關(guān)鍵性作用，總結(jié)了中國高速鐵路隧道的主要特點：分布區(qū)域廣且地質(zhì)環(huán)境復(fù)雜；隧道斷面凈空有效面積大；采用復(fù)合式襯砌與明洞式鋼筋混凝土結(jié)構(gòu)相結(jié)合的支護方式；道床形式主要為無砟軌道。對運營、在建和規(guī)劃中的中國高速鐵路隧道進行了系統(tǒng)介紹，提出中國高速鐵路隧道的發(fā)展方向；形成更加完善的技術(shù)體系；優(yōu)化隧道斷面尺寸和設(shè)計參數(shù)；全面實施大型機械化配套施工；提高隧道建設(shè)信息化管理水平。

關(guān)鍵詞：高速鐵路隧道；隧道設(shè)計與施工；客運專線；城際鐵路

來源出版物：隧道建設(shè), 2017, 37(1): 11-17

來源出版物：Advanced Materials Research, 2012, (544):256-261

環(huán)偶極子超材料制備基底可分為硬性基底材料和柔性基底材料。硬性基底超材料多見于微波波段和光波波段，采用覆銅板、硅或玻璃作為基底；柔性基底超材料采用聚酯薄膜（Mylar）或聚酰亞胺（Polyimide）等作為基底，可在太赫茲頻段實現(xiàn)，其具有形狀可彎曲、柔韌性強等特點，極大地擴大了超材料應(yīng)用范圍。

Measurements and analysis of propagation channels in high-speed railway viaducts

He, Ruisi; Zhong, Zhangdui; Ai, Bo; et al.

Abstract:This paper reports (i) a set of measurements of the wireless propagation channel at 930 MHz, conducted along the “Zhengzhou-Xian” high-speed railway of China in various railway viaduct scenarios, and (ii) an analysis and modeling of the small-scale and large-scale channel parameters based on those measurements. The environment can be categorized into four cases, covering viaducts with different heights and in different suburban environments.Small values of fade depth, level crossing rates, andaverage fade duration are observed. Akaike’s Information Criterion (AIC)-based evaluation indicates that the Ricean distribution is the best to describe small-scale amplitude fading. An analysis of the envelope autocovariance function shows that the coherence distance is less than 10 cm. The Ricean K-factor is modeled as a piecewise-linear function of distance. Moreover, a breakpoint path loss model is developed and shadow fading is investigated using the same break point as for the distance-dependent K-factor model. The Suzuki distribution is found to offer a good fit for the composite multipath/shadowing channels.We find that the viaduct height H, together with the number of surrounding scatterers, significantly affects the smalland large-scale channel parameters. These results are applicable to both normal-speed and high-speed railways,and will be useful in the modeling of railway viaduct channels and the design of railway wireless communication systems.

Keywords:composite channels; fading behavior; highspeed railway; path loss; railway communications; ricean k-factor; shadowing; viaduct

來源出版物：IEEE Transactions on Wireless Communications, 2013, 12(2): 794-805

Extended fuzzy logic controller for high speed train

Dong, Hairong; Gao, Shigen; Ning, Bin; et al.

Abstract:In this paper, two dynamic models of high-speed train are presented, namely a single-mass (SM) model and an unit-displacement multi-particle (UDMP) model. Based on the former, a direct fuzzy logic controller is designed,and on the latter, a new fuzzy controller incorporating the implication logic is designed. Three sets of relevant numerical simulation are provided to demonstrate the effectiveness of the proposed control schemes through comparison.

Keywords:automatic train operation (ATO); train dynamic model; high speed train; fuzzy logic control; speed and displacement tracking

來源出版物：Neural Computing & Applications, 2013,22(2): 321-328

Theoretical and experimental investigation on bridge-borne noise under moving high-speed train

Zhang Xun; Li Xiaozhen; Liu Quanmin; et al.

Abstract:Bridge-borne noise pollution caused by traininduced bridge vibration has attracted more and more attentions due to its low-frequency characteristic. In order to investigate the numerical simulation technique of bridge-borne noise and noise reduction methods, a simply supported prestressed concrete (PC) box-girder bridge is adopted for study. Based on train-track-bridge interaction theory, the dynamic response of the bridge under a moving high-speed train is calculated in time-domain and assumed as the sound source of bridge-borne noise.Then bridge-borne noise is estimated according to boundary element method (BEM) in frequency-domain.The time-frequency transform is conducted by fast Fourier transformation (FFT). The validity of the numerical simulation technique is verified through comparison with field measurement results. Furthermore, noise reduction methods are proposed and corresponding effects are discussed. Results show that the proposed numerical simulation method is feasible and accurate in assessing bridge-borne noise. The dominant frequencies of bridge vibration and bridge-borne noise range from 40 Hz to 125 Hz and from 31.5 Hz to 100 Hz, respectively. The peak frequency of bridge-borne noise near the bottom plate is 63 Hz. Increasing the thickness of deck plate, adjusting the inclination of webs to 0A degrees-12A degrees,strengthening the boundary constraints and adding a longitudinal clapboard are very effective noise control measures.

Keywords:bridge-borne noise; train-induced vibration;sound radiation; elevated bridge; numerical simulation;noise reduction

Multi-objective optimization design method of the high-speed train head

Yu, Meng-ge; Zhang, Ji-ye; Zhang, Wei-hua

Abstract:With the continuous improvement of the train speed, the dynamic environment of trains turns out to be aerodynamic domination. Solving the aerodynamic problems has become one of the key factors of the high-speed train head design. Given that the aerodynamic drag is a significant factor that restrains train speed and energy conservation, reducing the aerodynamic drag is thus an important consideration of the high-speed train head design. However, the reduction of the aerodynamic dragmay increase other aerodynamic forces (moments),possibly deteriorating the operational safety of the train.The multi-objective optimization design method of the high-speed train head was proposed in this paper, and the aerodynamic drag and load reduction factor were set to be optimization objectives. The automatic multi-objective optimization design of the high-speed train head can be achieved by integrating a series of procedures into the multi-objective optimization algorithm, such as the establishment of 3D parametric model, the aerodynamic mesh generation, the calculation of the flow field around the train, and the vehicle system dynamics. The correlation between the optimization objectives and optimization variables was analyzed to obtain the most important optimization variables, and a further analysis of the nonlinear relationship between the key optimization variables and the optimization objectives was obtained.After optimization, the aerodynamic drag of optimized train was reduced by up to 4.15%, and the load reduction factor was reduced by up to 1.72%.

Keywords:high-speed train; multi-objective optimization;parametric model; aerodynamic drag; load reduction factor

來源出版物：Journal of Zhejiang University-Science A,2013, 14(9): 631-641

Robust sampled-data cruise control scheduling of high speed train

Li, Shukai; Yang, Lixing; Li, Keping; et al.

Abstract:This paper investigates the robust cruise control scheduling of high speed train based on sampled-data.The dynamics model of a high speed train is modeled by a cascade of cars which are connected by flexible couplers, and is subject to rolling mechanical resistance,aerodynamic drag and wind gust. The robust cruise controller is designed for high speed train based on sampled-data. By using the method of converting the sampling period into a bounded time-varying delay, the addressed problem is transformed to the problem of stability analysis of time-varying delays system. Based on Lyapunov stability theory, sufficient conditions for the existence of robust sampled-data cruise control scheduling are given in terms of linear matrix inequality (LMI), under which the high speed train can track the desired speed, the relative spring displacement between the two neighbouring cars is robustly stable at the equilibrium state, and a prescribed H-infinity disturbance attenuation level with respect to the wind gust is guaranteed, which ensures the safety and comfort of the operating of high speed train. Numerical examples are given to illustrate the effectiveness of the proposed methods.

Keywords:high speed train; robust cruise control;sampled-data control; linear matrix inequality (LMI)

來源出版物：Transportation Research Part C-Emerging Technologies, 2014, 46: 274-283

Empirical models for extra propagation loss of train stations on high-speed railway

Guan, Ke; Zhong, Zhangdui; Ai, Bo; et al.

Abstract:Train stations are one of the largest and most unavoidable obstructions for electromagnetic wave propagation on a highspeed railway. They can bring about severe extra propagation loss, and therefore, lead to poor coverage or handover failure. However, their influence has been rarely investigated before. Based on rich experimental results of 930 MHz measurements conducted on train stations of high-speed railway in China, this paper proposes two empirical models for the extra propagation loss owing to train stations for the first time. The extra loss depends on four conditions: the distance between the transmitter (Tx) and the train station, the type of the train station, the track carrying the train, and the propagation mechanism zones. Hence, the models are established for every case of all the combinations of these four conditions.The validation shows that the proposed models accurately predict the extra propagation loss and support an effective way to involve the influence of the train station in the simulation and design of the signaling and train control communications systems.

Keywords:High-speed railway; propagation modeling;railway communications; train station

來源出版物：IEEE Transactions on Antennas and Propagation, 2014, 62(3):1935-1408

Real-time high-speed train rescheduling in case of a complete blockage

Zhan, Shuguang; Kroon, Leo G; Veelenturf, Lucas P; et al.

Abstract:This paper focuses on real-time rescheduling of railway traffic on a high speed railway line in case of a complete blockage of the railway infrastructure. Due to the disruption, all tracks in a railway segment are out of orderfor a certain period of time. In the situation that we consider, trains that are blocked by the disruption do not return to their origin by taking over train services in the opposite direction, but wait inside the stations until the disruption is over. Thus the main decisions to be taken are the following: in which stations do trains have to wait, in which order do they have to leave when the disruption is over, and which trains have to be canceled? A Mixed Integer Programming model is formulated to minimize the total weighted train delay and the number of canceled trains, while adhering to headway and station capacity constraints. Most instances can be solved in a single optimization run, but for the most complex instances we propose a two-stage optimization approach to improve the computational efficiency. The model is tested on real-world instances of the Beijing-Shanghai high speed railway line.The results show that the model is promising for reducing the effect of a disruption on passenger service, especially in comparison with a heuristic method used in practice.

Keywords:high speed railway; segment blockages; train rescheduling; real-time control

來源出版物：Transportation Research Part B-Methodological, 2015, 78: 182-201

Channel characteristics in high-speed railway a survey of channel propagation properties

Chen, Binghao; Zhong, Zhangdui; Ai, Bo; et al.

Abstract:In this article, we give an overview of recent research on propagation properties in high-speed railways(HSRs). The channel fading in HSRs is a big challenge for wireless access. It is essential to understand the channel-fading behavior before the system design. The novel results of propagation and channel models are presented. The details of channel characteristics, such as path loss, shadow fading, and Ricean K-factor, are discussed in each scenario. A comprehensive picture of propagation and channel-modeling research in railways is shown.

來源出版物：IEEE Vehicular Technology Magazine, 2015,10(2): 67-78

Empirical geometry-based random-cluster model for high-speed-train channels in UMTS networks

Yin, Xuefeng; Cai, Xuesong; Cheng, Xiang; et al.

Abstract:In this paper, a recently conducted measurement campaign for high-speed-train (HST) channels is introduced, where the downlink signals of an in-service Universal Mobile Terrestrial System (UMTS) deployed along an HST railway between Beijing and Shanghai were acquired. The channel impulse responses (CIRs) are extracted from the data received in the common pilot channels (CPICHs). Within 1318 km, 144 base stations(BSs) were detected. Multipath components (MPCs)estimated from the CIRs are clustered and associated across the time slots. The results show that, limited by the sounding bandwidth of 3.84 MHz, most of the channels contain a single line-of-sight (LoS) cluster, and the rest consists of several LoS clusters due to distributed antennas,leaking cable, or neighboring BSs sharing the same CPICH. A new geometry-based random-cluster model is established for the clusters’ behavior in delay and Doppler domains. Different from conventional models, the time-evolving behaviors of clusters are characterized by random geometrical parameters, i.e., the relative position of BS to railway, and the train speed. The distributions of these parameters, and the per-cluster path loss, shadowing,delay, and Doppler spreads, are extracted from the measurement data.

Keywords:geometry-based stochastic model; high speed train; random cluster model; time-variant channel;Universal Mobile Terrestrial System

來源出版物：IEEE Transactions on Intelligent Transportation Systems, 2016, 16(5): 2850-2861

A measurement-based stochastic model for high-speed railway channels

He, Ruisi; Ai, Bo; Zhong, Zhangdui; et al.

Abstract:The high-speed railway (HSR) propagation channel has a significant impact on the design and performance analysis of wireless railway control systems.This paper derives a stochastic model for the HSR wireless channel at 930 MHz. The model is based on a large number of measurements in 100 cells using a practically deployed and operative communication system. We use the Akaike information criterion to select the distribution of the parameter distributions, including the variations from cell to cell. The model incorporates the impact of directional base station (BS) antennas, includes several previously investigated HSR deployment scenarios as special cases,and is parameterized for practical HSR cell sizes, whichcan be several kilometers. The proposed model provides a consistent prediction of the propagation in HSR environments and allows a straightforward and time-saving implementation for simulation.

Keywords:akaike information criteria (AIC); directional antenna; high-speed railway (HSR); intercell variations;large-scale fading; path loss; railway communications;small-scale fading

來源出版物：Atmospheric Environment, 2015, 16(3):67-78

Numerical calculation of the slipstream generated by a CRH2 high-speed train

Huang, Sha; Hemida, Hassan; Yang, Mingzhi; et al.

Abstract:Slipstreams caused by high-speed train movement through the atmosphere pose a safety risk to passengers, trackside workers and track infrastructure. The improved delayed detached eddy simulation (IDDES)approach, an improved version of the detached eddy simulation method, is adopted in this paper to calculate the slipstream of a four-coach 1/25 th-scale model of the CRH2 high-speed train. Slipstream velocities and pressures at various lateral distances from the centre of rail (COR)position and vertical distances from the top of rail (TOR)position at trackside are calculated. Numerical results are compared with measurements obtained in a full-scale test and good agreement is obtained, which verifies the effectiveness and potential of the less costly IDDES method. It is found that the velocity and pressure distributions are similar to those obtained using different train types but with different peak values related to the difference in shapes. The peak velocities in the slipstream along the length of the train are found at the tail and in the near wake region. The magnitude of the peak decreases with an increasing distance from the COR and shows a relatively high value at about two thirds of the train height from the TOR. The maximum pressure coefficients are found in the upstream and nose regions. The results show that the value of these coefficients decreases with an increasing distance from the COR and TOR. Based on the suggested safe slipstream velocity in China, the IDDES results show that for a CRH2 high-speed train at a speed of 350 km/h, the safe standing distance should be greater than 3.4 m in the lower part of the train’s slipstream (up to about half of the train height from the ground) and 2.4 m for the top part of the train’s slipstream (above half the height of the train from the ground).

Keywords:high-speed train; IDDES method; slipstream velocity; slipstream pressure; safe standing distance

來源出版物：Proceedings of the Institution of Mechanical Engineers Part F-Journal of Rail and Rapid Transit, 2016,230(1): 103-116

Adaptive coordinated control of multiple high-speed tra ins with input saturation

Li, Shukai; Yang, Lixing; Gao, Ziyou; et al.

Abstract:This paper investigates the adaptive coordinated control of multiple high-speed trains with input saturation and uncertain parameters. The motion of an ordered set of high-speed trains is modeled by a multi-agent system, in which each train adjusts its speed dynamically by communicating with its neighboring trains. For the uncertainties in systems and the possible actuator saturation, based on the LaSalles invariance principle, a new adaptive coordinated control algorithm for each train is designed to track the desired speed, and meanwhile under the control algorithm, the headway distances of each train with its neighboring trains are stabilized at stationary distances in a safety range, which ensures safe and efficient operation of high-speed trains. Numerical examples are given to illustrate the effectiveness of the proposed methods.

Keywords:high-speed train; actuator saturation;coordinated control; multi-agent system

來源出版物：Nonlinear Dynamics, 2016, 83(4): 2157-2169

Robust QoS-aware cross-layer design of adaptive modulation transmission on OFDM systems in high-speed railway

Gao, Qian; Zhu, Gang; Lin, Siyu; et al.

Abstract:In this paper, we consider an orthogonal frequency division multiplexing communication system that adopts frame-by-frame transmission in high-speed railway (HSR) scenario. Due to the increase in demand for the QoS sensitive services, an efficient QoS-aware transmission strategy that improves the system performance is required urgently. Many efforts have been devoted to addressing this problem with the assumption of block fading channel in a frame duration. However, due to the frequent channel quality variation in a frame duration andserious inter channel interference in HSR scenario, the throughput of the QoS sensitive services degrades severely.Hence, a robust cross-layer transmission strategy that combines adaptive modulation (AM) scheme with truncated automatic repeat request protocol is proposed. In this cross-layer formulation, the normalized average throughput is optimized subject to the average power and the packet loss rate (PLR) requirements. First, we derive the closed form average bit error rate that represents the PLR requirement at the physical layer. Second, we obtain the solution of robust AM scheme and power allocation policy in the case of continuous rate. Third, we present the adaptive bits and power allocation scheme in the case of discrete rate, which can be implemented in practice.Finally, the performance of the proposed transmission strategy is evaluated by extensive simulations. Comparing with the constant transmit power AM scheme, the throughput increases by 20%, which demonstrates that the proposed robust cross layer design is suitable for the HSR communication systems.

Keywords:adaptive modulation; fast time-varying fading channel; high-speed railway; OFDM systems; packet loss rate; QoS; robust cross-layer design

來源出版物：IEEE Access, 2016, 4: 7289-7300

Modulation MIMO in high-speed railway

Cui, Yaping; Fang, Xuming

Abstract:For high-speed railway (HSR), an essential characteristic of the propagation channels is the specific spatial-temporal correlation caused by a dominant strong line-of-sight (LOS) component. Multiple-antenna gain is therefore far from being achieved due to this strong channel correlation. However, it is interesting to note that if the resulted intermarried interference (ICI) is elaborately controlled, high mobility may decrease the channel correlation. Spatial modulation (SM) is one of the promising multiple-antenna technologies for wireless communication systems, which needs only the activation of one transmit antenna to convey information bits implicitly through the index of the active transmit antenna, in addition to conveying information bits through modulation symbols during transmission. In SM, ICI is avoided, which therefore helps in the implementation of the idea of decreasing channel correlation by increasing the velocity in an HSR scenario. In this paper, the performance of massive SM multiple-input multiple-output (MIMO) over a spatialtemporal correlated Rician fading channel is investigated under an HSR scenario. The impacts of velocity, Rician factor K, and signal-to-noise ratio (SNR) are discussed. In addition, the correlation factor and the correlation comparison function are defined as metrics of channel correlation. We theoretically find out that higher velocity makes the impact of temporal correlation more dominant,which weakens the influence of spatial correlation. In other words, spatial correlation can be weakened by high mobility. Our theoretical analysis and simulations further demonstrate that, with an appropriate scheme, massive SM MIMO outperforms Vertical Bell Laboratories Layered Space-Time (VBLAST), except at a lower SNR region with high velocity (usually more than 360 km/h).Consequently, massive SM MIMO is a promising solution within an appropriate range of velocity for HSR wireless communication systems.

Keywords:massive multiple-input multiple-output(MIMO); Rician fading channel; spatial correlation; spatial modulation (SM); temporal correlation

來源出版物：IEEE Transactions on Vehicular Technology,2016, 65(11): 8925-8932

Parametric design and optimization of high speed train nose

Yao, SB; Guo, DL; Sun, ZX; et al.

Abstract:Aiming at shortening the design period and improve the design efficiency of the nose shape of high speed trains, a parametric shape optimization method is developed for the design of the nose shape has been proposed in the present paper based on the VMF parametric approach, NURBS curves and discrete control point method. 33 design variables have been utilized to control the nose shape, and totally different shapes could be obtained by varying the values of design variables.Based on the above parametric method, multi-objective particle swarm algorithm, CFD numerical simulation and supported vector machine regression model, multi-objective aerodynamic shape optimization has been performed.Results reveal that the parametric shape design method proposed here could precisely describe the threedimensional nose shape of high speed trains and could be applied to the concept design and optimization of the nose shape. Besides, the SVM regression model based themulti-points criterion could accurately describe the non-linear relationship between the design variables and objectives, and could be generally utilized in other fields.No matter the simplified model or the real model, the aerodynamic performance of the model after optimization has been greatly improved. Based on the SVR model, the nonlinear relation between the aerodynamic drag and the design variables is obtained, which could provide guidance for the engineering design and optimization.

Keywords:parametric design; aerodynamic shape; SVM model; PSO; multi-objective optimization; high speed trains

來源出版物：Optimization and Engineering, 2016, 17(3):505-630

Aerodynamic design on high-speed trains

Ding, Sansan; Li, Qiang; Tian, Aiqin; et al.

Abstract:Compared with the traditional train, the operational speed of the high-speed train has largely improved, and the dynamic environment of the train has changed from one of mechanical domination to one of aerodynamic domination. The aerodynamic problem has become the key technological challenge of high-speed trains and significantly affects the economy, environment,safety, and comfort. In this paper, the relationships among the aerodynamic design principle, aerodynamic performance indexes, and design variables are first studied,and the research methods of train aerodynamics are proposed, including numerical simulation, a reduced-scale test, and a full-scale test. Technological schemes of train aerodynamics involve the optimization design of the streamlined head and the smooth design of the body surface. Optimization design of the streamlined head includes conception design, project design, numerical simulation, and a reduced-scale test. Smooth design of the body surface is mainly used for the key parts, such as electric-current collecting system, wheel truck compartment, and windshield. The aerodynamic design method established in this paper has been successfully applied to various high-speed trains (CRH380A,CRH380AM, CRH6, CRH2G, and the Standard electric multiple unit (EMU)) that have met expected design objectives. The research results can provide an effective guideline for the aerodynamic design of high-speed trains.

Keywords:high-speed train; aerodynamic design;optimization design; smooth design

來源出版物：Acta Mechanica Sinica, 2016, 32(6): 215-232

Conceptual design of high-speed semi-low-floor bogie for train-tram

Jeong, Nak-Tak; Wang, Maosen; Yoo, Sehoon; et al.

Abstract:Train-tram railway vehicles implement the connection between urban tramlines and the surrounding railway network. Train-tram railway vehicles, which use existing infrastructure, can help to avoid large investments in new railways or tramlines and make interchanges between city center and surrounding cities unnecessary.However, present train-tram rail vehicle cannot carry out the integration of operating by means of high speed in intercity railways with operating on small radius of curvature in inner city tramlines. This paper aims to develop a new model for solid wheelsets train-tram railway vehicles, which will not only pass the curve of 25mR radius of curvature traveling on inner city tramlines with the speed of 18 km/h, but also can travel on straight railway with 200 km/h high speed between intercity. In this paper, a new train-tram model, including five car-body and five motor bogies with ten traction motors, is addressed.Expect as a real rail vehicle testing, this study prefer virtual simulation, which is an effective way to show the rail vehicle performance, such as ride stability, ride comfort and ride safety, by means of evaluating the dynamic characteristics of rail vehicle. Moreover, Design of Experiment (DOE) method is used to optimize solid wheelsets bogie system on improving passenger comfort,safety and stability of train-tram. Parameters of components of bogie system are tuned to minimize the derailment coefficient and the ride comfort index. The results shows that the best comfort index for passenger and minimum derailment coefficient are found. The results also show that this optimized new train-tram model is reliable and practical enough to be applied on real rail vehicle design.

Keywords:train-tram; dynamic simulation; critical speed;derailment coefficient; ride comfort index; DOE

來源出版物：International Journal of Automotive Technology, 2017, 18(3): 523-533

Directivity-beam width tradeoff of massive MIMO uplink beam forming for high speed train communication

Chen, Xuhong; Lu, Jiaxun; Li, Tao; et al.

Abstract:High-mobility adaption and massive multiple-input multiple-output (MIMO) application are two primary evolving objectives for the next generation high-speed train(HST) wireless communication system. In this paper, we consider how to design a location-aware beam forming for the massive MIMO system in the high traffic density HST network. We first analyze the tradeoff between beam directivity and beam width, based on which we present the sensitivity analysis of positioning accuracy. Then, in order to guarantee a high efficient transmission, we derive an optimal problem to maximize the beam directivity under the restriction of diverse positioning accuracies. After that,we present a low-complexity beam forming design by utilizing location information, which requires neither eigendecomposing (ED) the uplink channel covariance matrix (CCM) nor ED the downlink CCM. Finally, we study the beam forming scheme in the future high traffic density HST network, where a two HS Ts encountering scenario is emphasized. By utilizing the real-time location information, we propose an optimal adaptive beam forming scheme to maximize the achievable rate region under limited channel source constraint. Numerical simulation indicates that a massive MIMO system with less than a certain positioning error can guarantee a required performance with satisfying transmission efficiency in the high traffic density HST scenario and the achievable rate region when two HSTs encounter is greatly improved as well.

Keywords:HST wireless communication; massive MIMO;location-aware low-complexity beam forming; positioning accuracy; achievable rate region

來源出版物：IEEE Access, 2017, 5: 5936-5946

Analysis and comparison of modular railway power conditioner for high-speed railway traction system

Xu, Qianming; Ma, Fujun; He, Zhixing; et al.

Abstract:With the rapid development of modern electrified railway, negative-sequence current minimization is one of the most important considerations in the highspeed railway traction system. In the past, many multiple or multilevel topologies with high compensation capacity have been introduced for railway power conditioner (RPC).This paper presents a simplified quantitative comparison of five previous modular RPC topologies for negative sequence compensation in V/V and SCOTT traction systems, aiming for an optimal selection of the compensators. Performance criteria such as transformer requirement, voltage stress and current stress of a power switch, numbers of the power switches and capacitor are derived by analytical methods. Moreover, the numerical comparison of operating controllers is completed for modular RPCs. In addition, power losses of five modular RPCs are obtained by theoretical analysis, IPOSIM calculation as well as PSIM simulation. These calculations are validated via simulations results in PSIM. The main conclusion is that presented modular RPCs can be divided into general purpose RPC and special purpose RPC in terms of the behavior and efficiency. It is helpful to choose the appropriate topology for specific applications.

Keywords:high-speed railway traction; modular multilevel converter (MMC); negative-sequence current (NSC); power losses; railway power conditioner (RPC)

來源出版物：IEEE Transactions on Power Electronics,2017, 32(8): 6031-6048

責(zé)任編輯：衛(wèi)夏雯

Research of high speed train carbody structure vibration behaviors and structure fatigue strength characteristic technology

BR Miao; WH Zhang; GH Huang; et al.

The hybrid simulation method based on Multibody Simulation (MBS) and finite element method(FEM) were proposed here and applied to study the relation between carbody structure vibration behaviors and structure fatigue strength characteristic. The detailed steps include: Firstly, rigid-flexible couple vehicle multibody system dynamic model was created and performed to obtain the load time histories corresponded to the typical load cases. Secondly, the carbody structure stresses was calculated through Finite Element (FE) quasi-static stress method. Finally, with the material fatigue property and some uncertainty factors, carbody fatigue damage distribution and life was calculated and evaluated. And the conclusions can be understood that the mechanism between the full vehicle dynamic property and structure damage distribution. The results are also shown that the hybrid simulation technology could be applied into the carbody structure fatigue design.

carobody; dynamic stress analysis; finite element method (fem); multibody system; structure fatigue