卧姿人体垂直振动模型  

A Vertical Vibration Model of Human Body in Supine Position

作　　者：孙景工[1] 牛福[1] 祁建城[1] 李若新[1] 

机构地区：[1]军事医学科学院卫生装备研究所,天津300161

出　　处：《航天医学与医学工程》2002年第6期428-432,共5页Space Medicine & Medical Engineering

基　　金：总后卫生部青年基金 (9810 0 2 3 )

摘　　要：目的建立卧姿人体头部、胸部和腹部垂直振动模型。方法被试者 1 2名 ,年龄 2 4～ 5 6岁 ,采用频率2～ 35Hz的白噪声激励 ,根据卧姿被试者头、胸、腹部的加速度阻抗特性曲线 ,得到卧姿人体头部垂直振动模型 ,拟合出腹部和胸部的垂直振动模型。结果头部可认为是刚体 ,腹部和胸部模型为三自由度。结论卧姿人体垂直振动机械阻抗可线性表示且具有确定性 ,对卧姿人体头部、胸部和腹部分别建立垂直振动模型 。Objective To establish the models of head, abdomen, and chest of supine human body respectively under vertical vibration. Method The mechanical impedance of 12 healthy volunteers aged 24～56 was measured under vertical white noise stimulus in the frequency range of 2～35 Hz. To explain these findings, the model of head was proposed, the models of abdomen and chest were computed by way of an optimization procedure. Result The models of abdomen and chest are three degree of freedom and the head is rigid. Conclusion The mechanical impedance of the supine human body is linear and sole. The established models of head, abdomen and chest of supine human body when subjected to vertical vibration are useful for calculating and evaluating the comfort of supine human body under whole body vibration.

关 键 词：卧姿人体 垂直振动 模型 

分 类 号：R857.14[医药卫生—航空、航天与航海医学]