• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of terramechanics >Analysis of soil flow and traction mechanics for lunar rovers over different types of soils using particle image velocimetry
【24h】

Analysis of soil flow and traction mechanics for lunar rovers over different types of soils using particle image velocimetry

机译：利用粒子图像速度分析农狼不同类型土壤的土壤流动和牵引力学分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Grouser wheels have been used in planetary rovers to improve mobility performance on sandy terrains. The biggest difference between a wheel with and without grousers is the soil behavior beneath the wheel as the grousers shovel the soil. By analyzing the soil flow, we gain insight into the mechanics dominating the interaction between the wheel and the soil, directly impacting performance. As the soil flow varies depending on the soil properties, the effects of soil type on soil behavior and wheel-traveling performance should be studied. This paper reveals the difference in soil flow and wheel performance on cohesive and non-cohesive soils. We conducted a series of single wheel tests over different types of soils under several wheel-traveling conditions. Soil flow was visualized by using particle image velocimetry (PIV). The experimental results indicate that soil flow characteristics highly depend on the shear strength of the soil. The cohesive soil exhibited lower fluidity due to its higher shear strength. At the same time, the wheel displayed a higher traveling performance over the cohesive soil, that is, a lower slip ratio.(c) 2021 ISTVS. Published by Elsevier Ltd. All rights reserved.
机译：Crouser车轮已被用于行星群中，以改善桑迪地带的移动性能。带有和没有压紧的轮子之间的最大区别是轮子下方的土壤行为，因为扶手铲土。通过分析土壤流动，我们深入了解占据车轮和土壤之间相互作用的机制，直接影响性能。由于土壤流动根据土壤性质而变化，应研究土壤类型对土壤行为和轮行程性能的影响。本文揭示了土壤流动和轮子性能在内聚和非粘性土壤中的差异。在几个车轮行驶条件下，我们在不同类型的土壤上进行了一系列单轮测试。通过使用粒子图像VELOCIMETRY（PIV）可视化土壤流动。实验结果表明，土壤流动特性高度取决于土壤的剪切强度。由于其较高的剪切强度，粘性土壤具有较低的流动性。同时，车轮在粘性土壤上显示出较高的行驶性能，即较低的滑动比率。（c）2021 istvs。 elsevier有限公司出版。保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号