基于能量解耦法的某商用车动力总成悬置优化  

Optimization of the Commercial Vehicle Powertrain’s Mounting Based on Energy Decoupling Method

作　　者：盖大伟 沈保山 刘治彩 许佩佩 GAI Dawei;SHEN Baoshan;LIU Zhicai;XU Peipei(Weifang Racing Automobile System Co.,Ltd., Weifang Shandong261000,China;Wuxi Institute of Technology,Wuxi Jiangsu 214000,China;Xuzhou XCMG Automobile Manufacturing Co.,Ltd., Xuzhou Jiangsu221004,China)

机构地区：[1]潍坊瑞驰汽车系统有限公司,山东潍坊261000 [2]无锡职业技术学院,江苏无锡214000 [3]徐州徐工汽车制造有限公司,江苏徐州221004

出　　处：《汽车零部件》2019年第9期39-41,共3页Automobile Parts

摘　　要：为提升某商用车动力总成悬置系统的隔振性能,对现有方案前悬置主轴刚度进行优化。通过试验获得某商用车动力总成的惯性参数,利用能量法解耦计算求得固有频率和解耦率;分析不足后,运用MATLAB多目标优化算法,以前悬置刚度为变量,频率分离和解耦率为约束条件,解耦率加权和最大为目标函数,优化出最佳刚度值。通过隔振率试验,验证了优化方案的合理性。In order to improve the vibration isolation ratio of the powertrain s mounting system for a commercial vehicle,the stiffness of the existing front mount was optimized.The powertrain s inertia parameters were acquired through testing.Then the energy decoupling method was used to calculate the natural frequencies and decoupling rates.After analyzing the deficiencies of the result,the MATLAB multi-objective optimization algorithm was used to maximize the weighted sum of the decoupling rates,with the front mount s stiffness as the variable,frequency separation and decoupling rate as constrains.And the rationality is verified by vibration isolation rate testing.

关 键 词：动力总成 解耦率 固有频率 多目标优化 隔振率 

分 类 号：U463[机械工程—车辆工程]