摘要
为了将路面随机输入下军用汽车振动性能的研究从频域扩展到时域,对路面随机输入和军用汽车振动的时域模型及其求解方法进行了研究。通过路面随机输入时间功率谱密度的改进建立了路面随机输入的时域描述,采用1/2汽车五自由度系统建立了军用汽车振动时域描述,应用四阶龙格-库塔方法提出了路面随机输入和军用汽车振动的时域模型求解方法。研究结果表明,所建立的路面随机输入和军用汽车振动时域模型及其求解方法是有效的和可行的。
In order to extend research of vibration performance of military automobile under road random input from frequency field to time field,we studied the time field models of road random input and military automobile vibration and their solution methods.Description of time field of road random input is built by improving time power density of road random input.Description of time field of military automobile is established by the five-DOF（degree of freedom） half automobile system.The solution methods for time field models of road random input and military automobile vibration are presented by the four-order Runge-Kutta method.The results show that the time models and their solutions are effective and feasible.
出处
《中国科技论文》
CAS
北大核心
2012年第11期862-865,875,共5页
China Sciencepaper
基金
国家高技术研究发展计划(863计划)资助项目(2006AA110104)
关键词
车辆工程
军用汽车
振动性能
路面随机输入
时域模型
仿真
vehicle engineering
military automobile
vibration perfomence
road pulse input
time field model
simulation
