江苏大学学报（自然科学版）2011，Vol.32Issue(6)：647-651,5.DOI:10.3969/j.issn.1671-7775.2011.06.006
轨道高低不平顺激励下的车体振动仿真
Simulation of vehicle vibration with excitation of rail height irregularity
摘要
Abstract
The influence of track irregularity on vehicle body vibration was investigated to evaluate the vibration situation of vehicle body and analyze the stability level. A mechanical model for vertical vehicle body vibration was established to introduce motive differential equations. The track power spectrum in vertical space domain was transferred into the spectrum in time-frequency domain to establish 3D model of vehicle body by Pro/E software and wheel-rail model by SIMPACK. The train simulation model was also introduced by SIMPACK. The vertical vibration response of the vehicle body was calcuated with height irregularity as excitation function. Based on the vehicle response, the stability level of travelling vehicle was evaluated in time domain, and the composition of vehicle vibration acceleration power spectral density was analyzed in frequency domain. Referred Chinese standard of train stability, the performance grade of train stability and vibration were proposed.关键词
车体/高低不平顺/轮轨/仿真/SIMPACKKey words
vehicle body/height irregularity/wheel-track/simulation/SIMPACK分类
交通工程引用本文复制引用
左言言,常庆斌,耿烽,杨建..轨道高低不平顺激励下的车体振动仿真[J].江苏大学学报（自然科学版）,2011,32(6):647-651,5.基金项目
江苏省自然科学基金资助项目(BK2009212) （BK2009212）
高等学校博士学科点专项基金资助项目(20103227110009) （20103227110009）
