某商用车动力总成悬置系统隔振性能优化  

Optimization of Vibration Isolation Performance for Powertrain Mounting System of a Commercial Vehicle

作　　者：王康[1] 沈保山 游专 WANG Kang;SHEN Baoshan;YOU Zhuan(School of Automobile and Communications,Wuxi Institute of Technology,Wuxi Jiangsu 214000,China)

机构地区：[1]无锡职业技术学院汽车与交通学院,江苏无锡214000

出　　处：《汽车零部件》2022年第1期64-66,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,在试验获得某商用车动力总成惯性参数的基础上,利用能量解耦法计算获得了该系统的固有频率及各阶频率的能量分布,并针对其计算结果所表现出来的问题,运用Matlab编写程序对后悬置刚度进行了优化,获得了该悬置的理想刚度值,最后对新悬置系统的频率分布及解耦率进行了理论计算。计算结果表明:新悬置系统的固有频率分布合理,各阶能量解耦率超过80%,隔振性能有较好提升。In order to improve the vibration isolation performance of a commercial vehicle powertrain mounting system,based on the inertia parameters of a commercial vehicle powertrain,the natural frequency and the energy distribution of each order frequency of the system were calculated by energy decoupling method.The stiffness of the rear mount was optimized by using Matlab;the ideal stiffness of the new mounting system was obtained;and the frequency distribution and decoupling rate of the new mounting system were calculated theoretically.The results show that the natural frequency distribution of the new mounting system is reasonable;the decoupling rate of each order of energy exceeds 80%,and the vibration isolation performance has the good promotion.

关 键 词：动力总成悬置 解耦率 固有频率 多目标优化 隔振性能 

分 类 号：U463[机械工程—车辆工程]