How cat lands: insights into contribution of the forelimbs and hindlimbs to attenuating impact force
作者: Zhiqiang ZhangHui YuJialing YangLili WangLiming Yang
作者单位: 1Institute of Solid Mechanics, Beijing University of Aeronautics and Astronautics
2Mechanics and Materials Science Research Center, Faculty of Mechanical Engineering and Mechanics, Ningbo University
刊名: Chinese Science Bulletin, 2014, Vol.59 (26), pp.3325-3332
来源数据库: Springer Nature Journal
DOI: 10.1007/s11434-014-0328-0
关键词: CatBiomechanicsLandingImpact attenuationEnergy absorption
原始语种摘要: Abstract(#br)To safely land after different drops, cats can perfectly use their limbs as dampers to dissipate impact forces. Yet, we know little about the contribution of the forelimbs and hindlimbs of cats to attenuating the impact forces during landing. In order to investigate this, we analyzed the landing impulses and energy absorption based on the ground reaction forces and high-speed video recordings of cats performing self-initiated jump downs at different heights. Our results show that the distribution of impact forces between forelimbs and hindlimbs exhibits a landing height-dependent manner. Furthermore, combining the experimental measurements and the inverted pendulum-spring model, we find that variation in landing angle is correlated with the distribution manner. This...
全文获取路径: Springer Nature  (合作)
影响因子:1.319 (2012)

  • attenuating 衰减的
  • force 
  • contribution 贡献
  • impact 冲击碰撞