Different Mode Shapes of Indian Human Body in Sitting Posture

Predicting the responses of the combined human body-seat structure to vibration excitation is still a challenging task. This is mainly due to the complex dynamics behavior of the seated human body in response to the vibration. Nevertheless, several applications, such as optimizing the vehicle seat structure or reducing the transmission of the vibration to the seat occupant, do not necessarily require complex modeling of the human body. It is however essential to characterize and predict the critical frequencies and the corresponding vibration patterns of the combined seat with human occupant. This study aims to predict the resonant frequencies and corresponding vibration mode shapes of the vehicle seat with occupant 76Kg Indian male. In the present study, have founded mode shapes of the human body at the different frequencies and theses mode shapes shows the deformation of the body on different parts.