摘要
为了获取车辆前桥的性能特性并验证其可靠性,对所选取的工字梁前桥原型的典型工况进行静态和动态特性分析。为进一步提高前桥的综合性能,根据制动工况下受力状况及静态分析结果,对前桥进行有预应力模态分析。根据得到的前六阶模态振型,对前桥进行谐响应分析,得出第二阶振型频率下发生的共振影响;并以前二阶振型频率为输出变量,材料属性为设计变量进行响应面优化,得到了不同材料属性对前桥振动性能的影响,这可为进一步改善前桥结构动态性能提供参考。
In order to obtain the performance characteristics of the vehicle's front axle and verify its reliability,a static characteristic analysis of its typical working conditions is conducted through the selected I-beam front axle prototype.In order to further improve the comprehensive performance of the front axle,based on the stress condition and static analysis results of the front axle under braking conditions,a prestressed modal analysis is conducted on the front axle,and a harmonic response analysis is conducted on the front axle based on the first six modal vibration modes obtained.The resonance effect occurring at the second mode frequency is greater,and the previous second mode frequency is the output variable,and the material properties are the design variables for response surface optimization.The impact of different material properties on the vibration performance of the front axle is obtained,which provides a certain reference value for further improving the dynamic performance of the front axle structure in the future.
作者
陈宇
樊洋洋
储浏鹏
高政
沈纪元
CHEN Yu;FAN Yangyang;CHU Liupeng;GAO Zheng;SHEN Jiyuan(School of Mechanical Engineering,Chaohu University,Chaohu 238000,China)
出处
《滨州学院学报》
2023年第6期92-96,共5页
Journal of Binzhou University
关键词
前桥
静态特性
动态特性
响应面
the front axle
static characteristic
dynamic characteristics
response surface
