人体上肢多体系统动力学模型

MULTI BODY SYSTEM DYNAMICAL MODEL OF HUMAN ARMS

在弹射过程中，当敞开的弹射座椅进入气流中时，会造成人体各部位的损伤．特别是会造成肢体的骨骼或肌肉损伤——甩打伤．为设计飞行员的保护装置，对肢体的动态响应，如角速度、运动轨迹等进行了研究．介绍计算人体上肢动态响应的多体系统动力学模型，包括两种初始姿态（握扶手和握中央环）下弹射的情况．

During open seat ejection from high speed aircraft,the ejection is subjected to a variety of force environment and it can result in injury.In particular,muscular or skeletal injuries to the unrestrained extremities are attributed to windblast forces encountered when the seated occupant enters the high velocity airstream. To protect the ejectee,it's necessary to know the response of arms, such as angular velocity,track, etc .Besed on the dynamics of multi body system including the effects of flexibility and compliance between the adjacent bodies of the system,dynamic models of human arms were provided to calculate the dynamical response of the arms.