新型沙滩车动力总成悬置系统减振优化分析  

Optimization Analysis on Vibration Reduction of New ATV Powertrain Mount System

作　　者：楼贵东 朱红霞 卓耀彬[2] 游张平[2] 江洁[2] LOU Guidong;ZHU Hongxia;ZHUO Yaobin;You Zhangping;JIANG Jie(Zhejiang Taotao Vehicles Co.,Ltd.,Zhejiang Lishui 323000;College of Technology,Lishui University,Zhejiang Lishui 323000)

机构地区：[1]浙江涛涛车业股份有限公司,浙江丽水323000 [2]丽水学院工学院,浙江丽水323000

出　　处：《汽车实用技术》2021年第19期45-47,57,共4页Automobile Applied Technology

基　　金：浙江省自然科学基金重点资助项目(LZ21F020003);浙江省自然科学基金资助项目(LY18F030001,LY20E050002);浙江省公益技术研究计划资助项目(LGG18E050001)。

摘　　要：通过ABAQUS软件,建立得到新型沙滩车动力总成悬置系统的有限元模型,分析得到其前6阶模态振型,并分析各阶模态振型的形成原因。在模态分析的基础上。通过稳态动力学分析,得到动力总成悬置系统在简谐激振力下的振动响应,比较分析有、无缓冲套筒时动力总成悬置系统的振动响应,得出缓冲套筒起到有效的减振和隔振作用。分析得知第2阶车身框架斜向扩孔模态振型是系统的主要共振点,发动机应避开此工作频率,由此为发动机控制策略优化提供了参考。The finite element model of the new ATV powertrain mount system is established by ABAQUS software,and the first six modal shapes of the system are analyzed,and the formation reason of each modal shape is analyzed.On the basis of modal analysis,by means of steady state dynamics analysis,vibration response of the powertrain mount system under harmonic excitation force is obtained.By comparing and analyzing the vibration response of powertrain mounting system with and without the buffer sleeve,it is found that the buffer sleeve plays an effective role in vibration reduction and isolation.The analysis shows that the second modal shape which body frame diagonal expansion hole is the main resonance point of the system,the engine should avoid working at this frequency,which provides a reference for the optimization of engine control strategy.

关 键 词：悬置系统 模态振型 激振力 稳态动力学 

分 类 号：TP113.1[自动化与计算机技术—控制理论与控制工程]