桥梁检测车悬架弹簧多级减振性能分析  

Multi-Degree Vibration Damping Performance Analysis of Suspension Spring of Bridge-Detection Vehicle

作　　者：李庆桐[1,2] 徐杨蛟 李军[3] 周志祥[2] 

机构地区：[1]同济大学土木工程学院,上海200092 [2]重庆交通大学土木建筑学院,重庆400074 [3]重庆交通大学机电与汽车工程学院,重庆400074

出　　处：《重庆交通大学学报（自然科学版）》2014年第6期146-149,共4页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：重庆市科委自然基金项目(7994-2);重庆市教委自然科学基金项目(KJ090408)

摘　　要：根据非线性悬架系统特点,分析了三级刚度螺旋弹簧减振系统的工作原理和刚度特性。以某款桥梁检测车为对象,匹配设计了其三级刚度螺旋弹簧减振系统,并对减振系统进行了弹性特性、振动频率、阻尼特性分析。研究结果表明:多级刚度减振系统比单刚度系统具有更加理想的弹性特性曲线,更能满足汽车多负荷工况的需求;采用多级刚度减振系统可以降低汽车振动,提高汽车行驶平顺性和舒适性。According to the characteristics of nonlinear suspension system,the working principle and stiffness characteristics of 3-degree rigidity spiral spring vibration attenuation system were analyzed. Taking one certain bridge-detection vehicle as research object,the matching design of 3-degree rigidity spiral spring vibration attenuation system was done,and the elastic characteristic,frequency of vibration and damping characteristic of the vibration attenuation system were analyzed. The results show that multi-degree vibration attenuation system has a more ideal elastic stiffness characteristic curve comparing with single stiffness system,and it can meet the demands of multiple load case. Multi-degree vibration attenuation system can reduce vibration of the vehicle,and improve automobile＇s smoothness and comfort.

关 键 词：车辆工程 多级减振 非线性悬架 振动特性 阻尼 

分 类 号：U469.72[机械工程—车辆工程]