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汽车安全与节能学报

汽车安全与节能学报 ›› 2020, Vol. 11 ›› Issue (2): 212-219.DOI: 10.3969/j.issn.1674-8484.2020.02.008

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整车碰撞虚拟仿真中橡胶悬置的仿真方法

陈现岭，刘智超 * ，蒋斌庆，刘珍海   

  1. （长城汽车股份有限公司技术中心，保定 071000，中国）
  • 收稿日期:2020-01-03 出版日期:2020-06-30 发布日期:2020-06-30
  • 通讯作者: 刘智超 (1988—)，男 ( 汉 )，河北，工程师。E-mail: cyaqgc@gwm.cn。
  • 作者简介:第一作者 / First author ： 陈现岭 (1981—)，男 ( 汉 )，河北，副高级工程师。E-mail: cyaqgc@gwm.cn。

Simulation method of rubber suspension in virtual simulation of vehicle collision

CHEN Xianling, LIU Zhichao* , JIANG Binqing, LIU Zhenhai   

  1. （R&D Center of Great Wall Motor Company, Baoding 071000, China）
  • Received:2020-01-03 Online:2020-06-30 Published:2020-06-30

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摘要： 为找到合适的仿真方法模拟汽车发生碰撞事故时车身悬置系统的受力情况和失效模式，以金 属材料失效理论为基础，分别采用梁单元、壳单元和实体单元（Beam、Shell 和 Solid） 3 种仿真建模 方法，通过 LS-DYNA 软件对车身悬置系统在碰撞中的受力情况进行仿真分析，并结合实车碰撞试 验评估仿真精度。结果表明：针对剪切型和压缩型悬置系统，需要采用 Beam 和 Solid 相结合的仿真 分析方法才能更精确地反映车身悬置系统在实车碰撞事故中的受力情况和失效模式。因此，在车型研 发过程中，可以使用 Beam 和 Solid 相结合的仿真方法指导车身悬置系统的设计开发工作。

关键词: 汽车碰撞, 车身悬置, 仿真分析, 失效模式

Abstract: Three simulation modeling methods, namely Beam unit, Shell unit and Solid unit (Beam, Shell and Solid) were adopted respectively based on the failure theory of metal materials to propose an appropriate simulation analysis method to simulate the force condition and failure mode of the car body mounting system in vehicle collision accidents. The simulation analysis was carried out with LS-DYNA software on the force condition of the car body mounting system in the collision, and the simulation accuracy was evaluated in the real car collision tests. The results show that for shear and compression type suspension systems, the simulation analysis method combining Beam and Solid can accurately reflect the force condition and failure mode of the car body suspension system in real car collision accidents. Therefore, the simulation analysis method combining Beam with Solid can be applied to guide the design and development of car body mounting system in the process of car model research and development.

Key words: vehicle crash, vehicle mounts, simulation and analysis, failure mode

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