...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Bioinspiration & biomimetics >Biomechanics of gecko locomotion: the patterns of reaction forces on inverted, vertical and horizontal substrates
【24h】

Biomechanics of gecko locomotion: the patterns of reaction forces on inverted, vertical and horizontal substrates

机译：壁虎运动的生物力学：反向，垂直和水平底物上反作用力的模式

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

The excellent locomotion ability of geckos on various rough and/or inclined substrates has attracted scientists' attention for centuries. However, the moving ability of gecko-mimicking robots on various inclined surfaces still lags far behind that of geckos, mainly because our understanding of how geckos govern their locomotion is still very poor. To reveal the fundamental mechanism of gecko locomotion and also to facilitate the design of gecko-mimicking robots, we have measured the reaction forces (RFs) acting on each individual foot of moving geckos on inverted, vertical and horizontal substrates (i.e. ceiling, wall and floor), have associated the RFs with locomotion behaviors by using high-speed camera, and have presented the relationships of the force components with patterns of reaction forces (PRFs). Geckos generate different PRF on ceiling, wall and floor, that is, the PRF is determined by the angles between the direction of gravity and the substrate on which geckos move. On the ceiling, geckos produce reversed shear forces acting on the front and hind feet, which pull away from the body in both lateral and fore-aft directions. They use a very large supporting angle from 21 degrees to 24 degrees to reduce the forces acting on their legs and feet. On the floor, geckos lift their bodies using a supporting angle from 76 degrees to 78 degrees, which not only decreases the RFs but also improves their locomotion ability. On the wall, geckos generate a reliable self-locking attachment by using a supporting angle of 14.8 degrees, which is only about half of the critical angle of detachment.
机译：几个世纪以来，壁虎在各种粗糙和/或倾斜衬底上的出色运动能力一直吸引着科学家的注意力。但是，模仿壁虎的机器人在各种倾斜表面上的移动能力仍然远远落后于壁虎，这主要是因为我们对壁虎如何控制其运动的理解仍然很差。为了揭示壁虎运动的基本机制并简化壁虎模仿机器人的设计，我们测量了作用在移动壁虎的每个脚上的反作用力（RF），这些反作用力分别在垂直，水平和垂直的基板（即天花板，墙壁和地面）上移动。地板），通过使用高速相机将RF与运动行为相关联，并展示了力分量与反作用力（PRF）模式之间的关系。壁虎在天花板，墙壁和地板上生成不同的PRF，也就是说，PRF由重力方向和壁虎在其上移动的基材之间的角度确定。在天花板上，壁虎产生反向的剪切力，作用在前脚和后脚上，并在横向和前后方向上将其拉离身体。他们使用非常大的支撑角度（从21度到24度）来减小作用在其腿和脚上的力。在地板上，壁虎使用从76度到78度的支撑角度抬起身体，这不仅降低了RF，而且提高了其运动能力。在墙壁上，壁虎通过使用14.8度的支撑角（仅是脱离临界角的一半）来生成可靠的自锁附件。

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