量化鐵路車輛機(jī)械故障對(duì)軌道退化的影響(英文)
發(fā)布時(shí)間:2020-12-12 00:27
目的:了解和量化鐵路車輛機(jī)械故障對(duì)鐵路基礎(chǔ)設(shè)施退化的影響有利于提高列車安全性,合理制定維護(hù)策略,以及優(yōu)化軌道收費(fèi)模型。本研究為歐洲Shift2Rail-Assets4rail項(xiàng)目的一部分(報(bào)告以非公開的形式被遞交),旨在量化鐵路車輛機(jī)械故障對(duì)軌道退化的影響,為調(diào)整現(xiàn)有的軌道收費(fèi)模型提供合理的建議。創(chuàng)新點(diǎn):1.分析一個(gè)常見的鐵路車輛機(jī)械故障(擦傷)對(duì)四個(gè)用于軌道收費(fèi)模型的量化指標(biāo)的影響;2.引入金代理模型方法以減少仿真次數(shù)。方法:1.建立一個(gè)帶有擦傷的機(jī)車多體動(dòng)力學(xué)模型,并考慮車輪和軌道的柔性;2.引入金代理模型以量化車輛速度和擦傷尺寸對(duì)四種損壞機(jī)制(軌道沉降、軌道構(gòu)件疲勞、鋼軌磨耗和鋼軌滾動(dòng)接觸疲勞)的影響。結(jié)論:1.軌道沉降、軌道構(gòu)件疲勞和鋼軌磨耗隨著擦傷尺寸和車速的增加而急劇增加,并且這種增加趨勢(shì)隨著擦傷尺寸和車速的增加而變得更加尖銳。2.在低速時(shí),滾動(dòng)接觸疲勞隨著擦傷尺寸的增加而逐漸增加;在高速時(shí),它首先急劇增加,然后逐漸減小。3.擦傷對(duì)軌道構(gòu)件疲勞和鋼軌磨耗的影響最為顯著,其次是軌道沉降和滾動(dòng)接觸疲勞。
【文章來源】:Journal of Zhejiang University-Science A(Applied Physics & Engineering). 2020年10期 第783-798頁
【文章頁數(shù)】:16 頁
【文章目錄】:
1 Introduction
1.1 Quantification of track deterioration
(1) Track charging model
(2) Track friendliness evaluation model
1.2 Rolling stock failures (RSFs)
1.3 Motivation
1.4 Quantification method
1.4.1 Quantification indexes
1.4.2 Surrogate modeling
2 Locomotive/track coupled dynamics model
2.1 Locomotive model
2.2 Wheelset-track model
2.3 Wheel flat model
3 Methodology
3.1 Track deterioration model
3.1.1 Track settlement (TS)
3.1.2 Track component fatigue (TCF)
3.1.3 Abrasive wear (AW)
3.1.4 Rolling contact fatigue (RCF)
3.2 Kriging surrogate model (KSM)
3.3 Technique route
4 Simulation results
4.1 Quantification indicators
4.2 Simulation results
5 Conclusions and discussion
Replication of results
Contributors
Conflict of interest
Open access
Appendix A
Appendix B
本文編號(hào):2911504
【文章來源】:Journal of Zhejiang University-Science A(Applied Physics & Engineering). 2020年10期 第783-798頁
【文章頁數(shù)】:16 頁
【文章目錄】:
1 Introduction
1.1 Quantification of track deterioration
(1) Track charging model
(2) Track friendliness evaluation model
1.2 Rolling stock failures (RSFs)
1.3 Motivation
1.4 Quantification method
1.4.1 Quantification indexes
1.4.2 Surrogate modeling
2 Locomotive/track coupled dynamics model
2.1 Locomotive model
2.2 Wheelset-track model
2.3 Wheel flat model
3 Methodology
3.1 Track deterioration model
3.1.1 Track settlement (TS)
3.1.2 Track component fatigue (TCF)
3.1.3 Abrasive wear (AW)
3.1.4 Rolling contact fatigue (RCF)
3.2 Kriging surrogate model (KSM)
3.3 Technique route
4 Simulation results
4.1 Quantification indicators
4.2 Simulation results
5 Conclusions and discussion
Replication of results
Contributors
Conflict of interest
Open access
Appendix A
Appendix B
本文編號(hào):2911504
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