摘要
针对某型商用车转向盘怠速抖动问题,对其动力总成悬置系统固有特性和隔振性能进行了研究。综合考虑发动机悬置系统解耦度、振动传递率和谐振频率,建立了发动机悬置优化模型,并基于多目标融合粒子群优化方法获得了最优悬置系统参数。通过整车试验表明,优化改进后发动机隔振率在整个转速范围内明显提升,转向盘Z向振动加速度由原来的8.9 m/s^2降至0.9 m/s^2,有效解决了转向盘怠速抖动剧烈问题。
To eliminate steering wheel idle wobbling of a commercial vehicle, the inherent characteristics and vibration isolation performance of the engine mount system were studied. A optimized model of engine mount system was established that took into account the decoupling degree, vibration transmissibility and resonant frequency of the engine mount system. The optimal mount system parameters were obtained by muhi-objective particle swarm optimization. Vehicle test results show that engine vibration isolation frequency is improved substantially in the whole speed range, and vibration acceleration along Z direction of steering wheel is reduced fl'om 8.9 m/s2 to 0.9 m/s2, which effectively eliminates steering wheel idling wobbling.
作者
何水龙
许恩永
韦永尤
蒋占四
He Shuilong;Xu Enyong;Wei Yongyou;Jiang Zhansi(Guilin University of Electronic Technology, Guilin 541004;Dongfeng Liuzhou Motor Co., Ltd., Liuzhou 545005)
出处
《汽车技术》
CSCD
北大核心
2018年第5期36-40,共5页
Automobile Technology
基金
国家自然科学基金项目(51565008)
柳州市科学研究与技术开发计划课题(2016B020203)
广西中青年教师基础能力提升项目(2017KY0207)
关键词
商用车
转向盘
怠速抖动
悬置系统
优化
Commercial vehicle
Steering wheel
Idle wobbling
Suspension system
Optimization