主办：陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊：1976年
汽车实用技术

汽车实用技术 ›› 2024, Vol. 49 ›› Issue (9): 6-9.DOI: 10.16638/j.cnki.1671-7988.2024.009.002

• 新能源汽车 • 上一篇    

两种典型橡胶衬套在不同荷载下的动刚度特性

缪亚东   

  1. 无锡威巴克减震器有限公司 产品开发部
  • 发布日期:2024-05-11
  • 通讯作者: 缪亚东
  • 作者简介:缪亚东（1981－），女，硕士，工程师，研究方向为汽车悬置仿真设计，E-mail:yadong.miao@vibracoustic.com。

Dynamic Stiffness Property under Different Preloads for Two Typical Rubber Bushings

MIAO Yadong   

  1. Product Development Center, Vibracoustic (Wuxi) Vibration Isolators Company Limited
  • Published:2024-05-11
  • Contact: MIAO Yadong

PDF

摘要： 驱动电机总成悬置系统的隔振性能对整车噪声、振动与声振粗糙度（NVH）性能有着 重要的影响意义。目前纯电动汽车悬置普遍采用橡胶衬套类结构，结构相对简单，但对其动 刚度性能要求高。文章选取两种典型的橡胶衬套，利用有限元技术详细分析了两种衬套在不 同荷载下的动刚度表现形式，并着重分析对比了第一个峰值位置与不同预载的关系。分析结 果表明，同为衬套类结构，因结构不同，其动刚度表现特性差别较大。

关键词: 橡胶衬套；动刚度；NVH；有限元分析

Abstract: The vibration isolation performance of the mounting system of the drive motor assembly has an important influence on the noise, vibration and harshness (NVH) of the vehicle. Rubber bush is used commonly in electric vehicles, which is simple in design, but has high requirements for its dynamic stiffness performance. Two typical rubber bush are selected in this article, and compared the dynamic stiffness curve under different preloads by finite element analysis. Especially analyze the difference how the preloads affect the first peak positions. Results show that the dynamic stiffness performance characteristics vary greatly due to different structures.

Key words: Rubber bushings; Dynamic stiffness; NVH; Finite element analysis