Rigidity and Strength Analysis and Topology Optimization of Agricultural Vehicles Brake Pedal Based on Abaqus
-
摘要:
为了验证某新型农用车制动踏板的刚度特性与强度特性是否合格，采用Creo软件建立仿真分析模型，基于Abaqus软件对其进行材料设置、添加约束、加载集中力和划分网格，分析踏板在承受横向左右各100 N载荷和法向500、2 000和2 500 N载荷时的位移变形和应力分布。分析结果表明，其横向位移之和、承受法向500 N载荷时的位移量、2 000 N载荷产生的永久变形量及2 500 N载荷时的最大应力均满足工况要求。对制动踏板进行了拓扑优化分析，并对结构优化后的模型进行了静力学分析，结果表明，符合工况标准的要求，可以作为该型农用车制动踏板轻量化设计的依据。
Abstract:In order to verify whether the rigidity characteristics and strength characteristics of a new type of agricultural vehicle brake pedal were qualified, Creo software was used to establish its simulation analysis model, and then based on Abaqus software, it was used to set materials, add constraints, load concentrated forces and divide meshes．The displacement deformation and stress distribution of the pedal under lateral load of 100 N and the normal load of 500, 2 000 and 2 500 N were analyzed．Results showed that sum of lateral displacement, displacement under normal direction of 500 N, permanent deformation generated by 2 000 N and the maximum stress under 2 500 N all met requirements of working conditions．Topology optimization analysis of brake pedal was carried out, and static analysis of model after structural optimization was carried out．Results showed that it met requirements of working condition standard and could be used as the basis for lightweight design of brake pedal of this type of agricultural vehicle．
-
Keywords:
- agricultural vehicle /
- brake pedal /
- rigidity /
- strength /
- topology optimization
-
图 3 踏板表面加载500 N的位移云图
Figure 3. Displacement cloud map of pedal surface loaded with 500 N
图 4 踏板左侧加载100 N的位移云图
Figure 4. Displacement cloud map of pedal left side loaded with 100 N
图 5 踏板右侧加载100 N的位移云图
Figure 5. Displacement cloud map of pedal right side loaded with 100 N
图 6 踏板表面施加2 000 N卸载后的永久变形位移云图
Figure 6. Permanent deformation displacement cloud map of pedal surface after 2 000 N unloading
图 7 踏板表面施加2 500 N后的应力云图
Figure 7. Stress cloud map of pedal surface after applying 2 500 N
图 10 踏板左侧加载100 N的位移云图
Figure 10. Displacement cloud map of left side of pedal loaded with 100 N
图 11 踏板右侧加载100 N的位移云图
Figure 11. Displacement cloud map of right side of pedal loaded with 100 N
图 12 踏板表面加载500 N的位移云图
Figure 12. Displacement cloud map of pedal surface loaded with 500 N
图 13 踏板表面加载2 000 N卸载后踏板塑性变形量云图
Figure 13. Plastic deformation displacement cloud map of pedal surface after 2 000 N unloading
图 14 踏板表面加载2 500 N后的应力云图
Figure 14. Stress cloud map of pedal surface after applying 2 500 N
表 1 工况1～4的详细规范标准
Table 1. Detailed specification standards for working conditions 1～4
项目 工况1 工况2 工况3 工况4 施力部位 踏板表面 踏板两侧 踏板表面 踏板表面 大小/N 500 100 2 000 2 500 方向 垂直于表面 横向 垂直于表面 垂直于表面 作用时间 持续 持续 加载后卸载 持续 检验标准 位移
≤2 mm位移之和
≤10 mm永久变形量
≤5mmMises应力
<抗拉强度极限
下载: 导出CSV
-
[1] 郭宋平．某纯电动厢式运输车制动系统主要零部件的研制[D]．洛阳: 河南科技大学, 2020GUO Songping．Research on the main parts of the brake system of a pure electric van[D]．Luoyang: Henan University of Science and Technology, 2020 [2] 宋洋勇,张瑞乾,赵建中,等.汽车离合器踏板构件的有限元分析与优化[J].机械工程与自动化,2016(3):18-20. doi: 10.3969/j.issn.1672-6413.2016.03.007SONG Yangyong,ZHANG Ruiqian,ZHAO Jianzhong,et al.Finite element analysis and optimization of automobile clutch pedal[J].Mechanical Engineering & Automation,2016(3):18-20. doi: 10.3969/j.issn.1672-6413.2016.03.007 [3] 朱和伟,葛英飞,张旭良,等.高速动车组摆动式踏板应力和残余形变量分析[J].南京工程学院学报(自然科学版),2018,16(4):67-73.ZHU Hewei,GE Yingfei,ZHANG Xuliang,et al.Analysis of swing pedal stress and residual deformation of high-speed multiple units[J].Journal of Nanjing Institute of Technology(Natural Science Edition),2018,16(4):67-73. [4] 吕跟锋,王志卿,佛开宇,等.商用车制动系统效能试验研究[J].汽车实用技术,2019(12):118-119. doi: 10.16638/j.cnki.1671-7988.2019.12.038LV Genfeng,WANG Zhiqing,FO Kaiyu,et al.Experimental study on the effectiveness of commercial vehicle braking system[J].Automobile Technology,2019(12):118-119. doi: 10.16638/j.cnki.1671-7988.2019.12.038 [5] 王梓晴．基于多工况协同优化的某无人车车架轻量化设计[D]．北京: 北京林业大学, 2020WANG Ziqing．Lightweight design of an UGV frame based on multiple load cases collaborative optimization[D]． Beijing: Beijing Forestry University, 2020 [6] 李纪雄,田英,谭健良,等.基于拓扑优化方法的赛车制动踏板轻量化设计[J].农业装备与车辆工程,2020,58(8):42-46. doi: 10.3969/j.issn.1673-3142.2020.08.010LI Jixiong,TIAN Ying,TAN Jianliang,et al.Lightweight design of racing brake pedal based on topology optimization method[J].Agricultural Equipment & Vehicle Engineering,2020,58(8):42-46. doi: 10.3969/j.issn.1673-3142.2020.08.010 [7] 许华旸,关立文,王立平,等.惯性载荷下飞行模拟器大臂结构的拓扑优化[J].机械工程学报,2014,50(9):14-23. doi: 10.3901/JME.2014.09.014XU Huayang,GUAN Liwen,WANG Liping,et al.Topology optimization for the arm of flight simulator under inertial loads[J].Journal of Mechanical Engineering,2014,50(9):14-23. doi: 10.3901/JME.2014.09.014 [8] 邓若玲．基于多目标拓扑优化方法的HMCVT箱体轻量化设计[D]．广州: 华南农业大学, 2018DENG Ruoling．Lightweight design of HMCVT box based on multi-objective topology optimization method[D]．Guangzhou: South China Agricultural University, 2018 [9] 李明轩,苏小平.三轿车后副车架多目标拓扑优化方法研究[J].机械设计与制造,2016(6):130-134. doi: 10.3969/j.issn.1001-3997.2016.06.036LI Mingxuan,SU Xiaoping.Research on multi-objective topology optimization for sub-frame of vehicle[J].Machinery Design & Manufacture,2016(6):130-134. doi: 10.3969/j.issn.1001-3997.2016.06.036 [10] 朱鑫垚,赵宇,李彦.基于ABAQUS的某型号轿车连杆拓扑优化设计[J].农业装备与车辆工程,2021,59(11):149-152. doi: 10.3969/j.issn.1673-3142.2021.11.034ZHU Xinyao,ZHAO Yu,LI Yan.Optimization design of connecting rod topology based on ABAQUS[J].Agricultural Equipment & Vehicle Engineering,2021,59(11):149-152. doi: 10.3969/j.issn.1673-3142.2021.11.034 [11] 邹坤,侯亮,卜祥建,等.基于工况风险评估的叉车门架多工况拓扑优化[J].中国机械工程,2019,30(5):568-577. doi: 10.3969/j.issn.1004-132X.2019.05.010ZOU Kun,HOU Liang,BU Xiangjian,et al.Multi-working condition topology optimization of forklift door frames based on working condition risk assessments[J].China Mechanical Engineering,2019,30(5):568-577. doi: 10.3969/j.issn.1004-132X.2019.05.010 -
下载:
点击查看大图
计量
- 文章访问数: 35
- HTML全文浏览量: 9
- PDF下载量: 7
- 被引次数: 0
京公网安备 11010502037498号
