Modeling of Lunar Rover Vehicle Wheel-Soil Interaction Using Fem-Dem Method

Proceedings of the 11th Asia-Pacific Regional Conference of the ISTVS Pub Date : 2022-10-10 DOI:10.56884/otlt5367

Kaidi Zhang, Yun-qing Zhang, Junwei Shi, Weili Kong

{"title":"Modeling of Lunar Rover Vehicle Wheel-Soil Interaction Using Fem-Dem Method","authors":"Kaidi Zhang, Yun-qing Zhang, Junwei Shi, Weili Kong","doi":"10.56884/otlt5367","DOIUrl":null,"url":null,"abstract":"Apollo Lunar Rover Vehicle (LRV) used wire mesh wheels to adapt to the loose and soft soil conditions on the lunar surface, aimed to meet the mobility performance of LRV on the moon. Therefore, it is of great significance to study the wheel-soil interaction characteristics of the wire mesh wheel to improve the maneuverability and traction performance of LRVs. This paper proposed a coupled analysis method of wire mesh wheel-soil based on the DEM-FEM method. Firstly, a lunar terrain DEM model was established, which conforming to the physical characteristics of the lunar soil. Then, a FEM model of the flexible wire mesh wheel with large deformation characteristics was developed, which was verified by stiffness tests. In addition, the mobility performance of the wheel model developed were studied under different slip rates and sideslip angles, respectively. The simulation results were compared and validated with NASA experiment data. The results can provide technical support for the coupling simulation of wire mesh wheels and the traction characteristics of LRV.","PeriodicalId":447600,"journal":{"name":"Proceedings of the 11th Asia-Pacific Regional Conference of the ISTVS","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 11th Asia-Pacific Regional Conference of the ISTVS","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.56884/otlt5367","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

Apollo Lunar Rover Vehicle (LRV) used wire mesh wheels to adapt to the loose and soft soil conditions on the lunar surface, aimed to meet the mobility performance of LRV on the moon. Therefore, it is of great significance to study the wheel-soil interaction characteristics of the wire mesh wheel to improve the maneuverability and traction performance of LRVs. This paper proposed a coupled analysis method of wire mesh wheel-soil based on the DEM-FEM method. Firstly, a lunar terrain DEM model was established, which conforming to the physical characteristics of the lunar soil. Then, a FEM model of the flexible wire mesh wheel with large deformation characteristics was developed, which was verified by stiffness tests. In addition, the mobility performance of the wheel model developed were studied under different slip rates and sideslip angles, respectively. The simulation results were compared and validated with NASA experiment data. The results can provide technical support for the coupling simulation of wire mesh wheels and the traction characteristics of LRV.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

基于Fem-Dem方法的月球车车轮-土壤相互作用建模

阿波罗月球车(LRV)采用钢丝网轮来适应月球表面松软的土壤条件，旨在满足LRV在月球上的移动性能。因此，研究钢丝网轮的轮土相互作用特性对提高lrv的机动性能和牵引性能具有重要意义。提出了一种基于DEM-FEM法的钢丝网轮-土耦合分析方法。首先，建立符合月壤物理特性的月壤地形DEM模型;建立了具有大变形特性的柔性钢丝网轮有限元模型，并通过刚度试验对模型进行了验证。此外，还对所建立的车轮模型在不同滑移率和侧滑角下的移动性能进行了研究。仿真结果与NASA实验数据进行了对比验证。研究结果可为钢丝网轮与轻轨车牵引特性的耦合仿真提供技术支持。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Proceedings of the 11th Asia-Pacific Regional Conference of the ISTVS

自引率

0.00%

发文量