农用车辆悬架减振器流固耦合分析  

Fluid-structure interface analysis of shock absorber for agricultural vehicle suspension

作　　者：杨成龙[1,2] 孙付春[1] 黄尔宇 彭建设[1] 李华东 Yang Chenglong Sun Fuchun Huang Eryu Peng Jianshe Li Huadong(School of Mechanical Engineering, Chengdu University, Chengdu, 610106, China Sichuan Ningjiang Shanchuan Machine Co. ltd, Chengdu, 610106, China Faculty of Mechanical Engineering, Karlsruhe Institute of Technology, Karlsruhe, 76131, Germany)

机构地区：[1]成都大学机械工程学院,成都市610106 [2]四川宁江山川机械有限责任公司,成都市610106 [3]德国卡尔斯鲁厄理工大学机械工程系,德国卡尔斯鲁厄76131

出　　处：《中国农机化学报》2017年第2期57-62,共6页Journal of Chinese Agricultural Mechanization

基　　金：四川省教育厅重点项目(16ZA0382)

摘　　要：运用ADINA的非线性技术和流固强耦合技术建立减振器1/4有限元仿真模型,解决农用车辆悬架减振器的工作模拟。模型考虑几何模型在做布尔操作后得到的流场不连续问题和阻尼阀片预变性问题。通过仿真模型研究阀系零件工作过程应力应变情况、减振器内部各处流动压力变化、阀系特性,并提取模拟减震器外特性与试验结果对比。对比单周期正弦瞬态和单向匀速瞬态两种计算方法的仿真速度,确认两种方法的计算结果吻合,单向匀速瞬态计算速度更快。In order to solve the simulation problem of agricultural vehicle suspension shock absorber,aquarter of the finite element simulation model was set up by software ADINA,and discontinuity of the flow field and the pre-degeneration of the damped discs after the Boolean operation were considered.Stress and strain of valve parts,variation of flow pressure and the characteristics of valve system are studied with the simulation model,and then,external characteristics of the shock absorber were compared with the experimental results.After comparing the simulation results obtained by two methods,one-cycle sinusoidal transient and the unidirectional uniform velocity transient,the calculation results are confirmed to be coincided,and the latter method is faster.

关 键 词：减振器 流固耦合 阀系特性 流场压力 外特性 

分 类 号：U279.324[机械工程—车辆工程] U463.335.1[交通运输工程—载运工具运用工程]