425 Parameter estimation of a standing human-mechanical vibration system based on the frequency response experiment

Abstract

This study considers the one −degrees−of」freedom platform on which a human stands ． The human body and the platform are modeled as a Hnear two −degrees− of 」freedom vib 瓰 匸 ion system ． The mass ， the viscosity ， and the stiffness parameters of human body are identi 丘ed by the leas こ squares method of the exper 至 rnen 【 al frequency response ． Furthermore ， the inHuences of ioads on the human ' s consciousness are investigated expehmentally ， and the relationships between the loads and the changes of the 孟 dent 畫 fied parameters are discussed ．