本文選題：高速鐵路 + 車輛-軌道系統(tǒng)�。� 參考：《中國(guó)地震局工程力學(xué)研究所》2013年碩士論文

【摘要】：地震會(huì)對(duì)高速行駛列車的安全構(gòu)成嚴(yán)重威脅，若在鐵路系統(tǒng)中建立地震預(yù)警系統(tǒng)，則可以有效地保障鐵路運(yùn)輸安全，而報(bào)警閾值是高速鐵路預(yù)警系統(tǒng)的重要參數(shù)，其設(shè)定的合理與否直接關(guān)系到預(yù)警系統(tǒng)是否有效可靠。本文針對(duì)高速列車地震緊急處置報(bào)警閾值相關(guān)問(wèn)題進(jìn)行了如下研究： （1）詳細(xì)闡述了高速列車地震緊急報(bào)警閾值研究的目的意義、現(xiàn)狀和存在的問(wèn)題。 （2）基于現(xiàn)役高鐵列車設(shè)計(jì)參數(shù)，建立了車輛-軌道系統(tǒng)模型，在此基礎(chǔ)上建立了車輛-軌道系統(tǒng)振動(dòng)方程，對(duì)軌道不平順進(jìn)行了分析，選取了適合高速鐵路的軌道不平順譜，采用三角級(jí)數(shù)法對(duì)軌道不平順功率譜密度函數(shù)進(jìn)行了數(shù)值模擬，并選取了六條典型的地震記錄作為地震激勵(lì)。 （3）采用Hertz非線性接觸理論計(jì)算了輪軌法向力，采用Kalker線性蠕滑理論計(jì)算輪軌蠕滑力，，運(yùn)動(dòng)方程求解采用Newmark-β數(shù)值積分法。用MATLAB編制了計(jì)算程序，并用算例驗(yàn)證了程序的可靠性。 （4）采用脫軌系數(shù)、輪重減載率和輪軌橫向力三個(gè)指標(biāo)評(píng)價(jià)車輛運(yùn)行安全性。選取計(jì)算參數(shù)，對(duì)車輛-軌道模型進(jìn)行了地震響應(yīng)分析，計(jì)算了不同車速、不同地震強(qiáng)度時(shí)列車的動(dòng)力反應(yīng)，通過(guò)比較三項(xiàng)安全性指標(biāo)，對(duì)計(jì)算結(jié)果進(jìn)行分析整理，總結(jié)車速和地震動(dòng)強(qiáng)度與列車安全性的關(guān)系，最終建議給出了高速列車地震緊急處置系統(tǒng)的報(bào)警閾值：當(dāng)列車時(shí)速低于200km時(shí)，較小地震對(duì)列車運(yùn)行的安全性不會(huì)造成嚴(yán)重影響，考慮行車的舒適度，報(bào)警閾值可以定為61Gal；當(dāng)列車時(shí)速超過(guò)200km后，閾值隨車速增加線性降低；當(dāng)列車時(shí)速達(dá)到350km時(shí)，報(bào)警閾值建議取為46Gal。
[Abstract]:Earthquake will pose a serious threat to the safety of high-speed trains. If the earthquake warning system is established in the railway system, it can effectively guarantee the safety of railway transportation, and the alarm threshold is an important parameter in the early warning system of high-speed railway. Whether its setting is reasonable or not is directly related to the effectiveness and reliability of the early warning system. In this paper, the problems related to the alarm threshold of earthquake emergency disposal for high-speed trains are studied as follows: The purpose significance, present situation and existing problems of the research on earthquake emergency alarm threshold of high speed train are expounded in detail. (2) based on the design parameters of active high-speed railway train, the model of vehicle-track system is established, the vibration equation of vehicle-track system is established, the track irregularity is analyzed, and the track irregularity spectrum suitable for high-speed railway is selected. The power spectral density function of track irregularity is numerically simulated by means of trigonometric series method, and six typical seismic records are selected as seismic excitation. 3) the wheel / rail normal force is calculated by Hertz's nonlinear contact theory, the wheel / rail creep force is calculated by Kalker's linear creep theory, and the motion equation is solved by Newmark- 尾 numerical integration method. The calculation program is programmed with MATLAB, and the reliability of the program is verified by an example. 4) three indexes of derailment coefficient, wheel load reduction rate and wheel / rail lateral force are used to evaluate the safety of vehicle operation. The seismic response of the vehicle-track model is analyzed by selecting the calculation parameters, and the dynamic response of the train with different speed and different earthquake intensity is calculated. By comparing three safety indexes, the calculated results are analyzed and sorted out. This paper summarizes the relationship between speed, ground motion intensity and train safety, and finally gives the alarm threshold of earthquake emergency disposal system of high-speed train: when the train speed is lower than 200km, the small earthquake will not seriously affect the safety of train operation. Considering the comfort of the train, the alarm threshold can be determined as 61Gal; when the train speed exceeds 200km, the threshold decreases linearly with the increase of the speed of the train, and when the train speed reaches 350km, the alarm threshold is suggested to be 46Gal.
【學(xué)位授予單位】：中國(guó)地震局工程力學(xué)研究所
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：P315.9;U298

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

1 ;關(guān)于機(jī)車車輛/軌道系統(tǒng)隨機(jī)激勵(lì)函數(shù)的研究[J];長(zhǎng)沙鐵道學(xué)院學(xué)報(bào);1985年02期

2 趙樹學(xué);;我國(guó)高速鐵路地震監(jiān)控系統(tǒng)技術(shù)方案研究[J];鐵路技術(shù)創(chuàng)新;2010年05期

3 黃俊飛,練松良,宗德明,胡偉強(qiáng);軌道隨機(jī)不平順與車輛動(dòng)力響應(yīng)的相干分析[J];同濟(jì)大學(xué)學(xué)報(bào)(自然科學(xué)版);2003年01期

4 劉承亮;史宏;王彤;;高速鐵路地震監(jiān)測(cè)技術(shù)研究與緊急處置系統(tǒng)的構(gòu)建[J];鐵路計(jì)算機(jī)應(yīng)用;2009年11期

5 盧瑞珊;宋麒林;王富章;王彤;李平;;鐵路地震災(zāi)害預(yù)警與應(yīng)急系統(tǒng)現(xiàn)狀及展望[J];鐵路計(jì)算機(jī)應(yīng)用;2010年07期

6 陽(yáng)建鳴;劉春雨;;日本上越新干線列車脫軌事故探究[J];中國(guó)鐵路;2006年08期

7 劉林,閻貴平,辛學(xué)忠;京滬高速鐵路地震預(yù)警系統(tǒng)的方案及關(guān)鍵參數(shù)研究[J];中國(guó)安全科學(xué)學(xué)報(bào);2002年04期

8 孫漢武;王瀾;戴賢春;穆恩生;劉敬輝;;高速鐵路地震緊急自動(dòng)處置系統(tǒng)的研究[J];中國(guó)鐵道科學(xué);2007年05期

相關(guān)博士學(xué)位論文 前1條

1 崔高航;城軌交通引起的環(huán)境振動(dòng)研究及軌道譜參數(shù)虛擬反演[D];哈爾濱工業(yè)大學(xué);2009年

相關(guān)碩士學(xué)位論文 前5條

1 衛(wèi)緯;車輛—軌道系統(tǒng)運(yùn)行安全綜合評(píng)價(jià)研究[D];北京交通大學(xué);2011年

2 孫利;高速鐵路地震預(yù)警系統(tǒng)閾值探索[D];大連理工大學(xué);2011年

3 孟于飛;地震緊急處置技術(shù)綜合研究[D];中國(guó)地震局工程力學(xué)研究所;2011年

4 肖新標(biāo);軌道運(yùn)動(dòng)對(duì)列車脫軌影響的研究初探[D];西南交通大學(xué);2005年

5 段蘭云;車橋耦合振動(dòng)系統(tǒng)中車輛的走行性分析[D];天津大學(xué);2009年

本文編號(hào)：1774720