摘要
为分析全地域移动平台的振动特性,建立了10自由度半车刚体振动模型。整车振动模型的求解采用时域法,模型激励为路面随机输入位移信号。按照路面不平度功率谱,采用三角函数法来生成路面随机位移数据。利用建立的10自由度整车刚体振动模型,分析了车架弹性振动的影响,结果表明车架的1阶、2阶弯曲对整车振动的影响较大,更高阶的弯曲对整车振动的影响较小,因此在1/2整车振动模型建模中,考虑到车架的1阶、2阶弯曲已能满足精度要求,能很好地分析整车振动。最后结合ISO2631-1对人体振动的评价方法,分析了驾驶员处的振动舒适性。
In order to assess the degrees of freedom was built. vibration performance of all terrain vehicles, a half vehicle model with 10 The model was solved using the time domain method. Road surface irregularity excites the model and was generated by a trigonometric function. Based on this model, the beaming of the frame was analyzed. The results show that the first beaming and second beaming influence the vibration significantly. As a result, a half vehicle model that includes the first two beamings of the frame can satisfy the vehicle vibration analysis precision requirements. Driver ride quality was evaluated according to ISO2631-1.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第10期1118-1122,共5页
Journal of Chongqing University
基金
国防科工委十一五国防基础科研资助项目
关键词
全地域车
乘坐舒适性
移动平台振动
计算机仿真
all terrain vehicle
ride quality
motor platform vibration
computer simulation
