摘要
为了更加准确地对乘车舒适性进行评价,建立了乘客-车辆-桥梁系统耦合振动分析模型,通过拉格朗日方程推导了系统的动力微分方程,Newmark积分进行迭代计算,采用Fortran语言编程进行求解,分别计算了桥梁、车辆及乘客的振动响应,并与通常的车辆-桥梁耦合振动模型计算结果进行对比。结果表明:是否考虑乘客模型对于桥梁的位移影响比较有限,但是对于车辆的振动状态会产生明显影响,且车辆与乘客的运动响应存在明显差异,因此采用车辆的振动响应对乘车舒适性进行评价的方法可能会过高地估计乘客的舒适性。
In order to evaluate the riding comfort of passengers more accurately,a passenger-vehicle-bridge coupling model is built,and the dynamic deferential equations of the system are derived through Lagrange equation method.The dynamic respon-ses of the bridge,the vehicle and the passengers are calculated through the Newmark integral iterative method and Fortran lan-guage?and the results are compared with those calculated by the vehicle-bridge system.The results show that considering the passenger model has little influence on the bridge displacement but great influence on the dynamic responses of the vehicle?and meanwhile there is obvious difference between the vehicle and the passenger.Therefore,it is not appropriate to evaluate the riding comfort through the vehicle's dynamic responses only.
作者
王少钦
彭培火
杨谆
马骎
张田
WANG Shao-qin;PENG Pei-huo;YANG Zhun;MA Qin;ZHANG Tian(School of Science, Beijing University of Civil Engineering and Architecture, Beijing 100044, China;Beijing's Key Laboratory of Structural Wind Engineering and Urban Wind Environment (Beijing Jiaotong University) , Beijing 100044, China;CCCC Highway Consultants Co. , Ltd. , Beijing 100088, China;School of Traffic and Transportation Engineering, Dalian Maritime University, Dalian 116026, China)
出处
《振动工程学报》
EI
CSCD
北大核心
2018年第1期30-38,共9页
Journal of Vibration Engineering
基金
国家自然科学基金资助项目(U1434205
51508018
51608087)
北京市教委科研计划资助项目(SQKM201610016015
SQKM201710016013)
