ABSTRACT
This chapter details the frequency response function of a flexible multibody system. The frequency response function is used to analyze the frequency characteristics of the system. The chapter examines the system response when an impact force, step force, or other force is applied, and optimizes the system properties. The frequency response function developed in this chapter is time variant. To perform a dynamic simulation of a system is to construct a mathematical model of the system and, by examining the behavior of the model under various conditions, to determine how a real system would behave if and when it is built. Multibody dynamic systems are usually described mathematically by a set of coupled nonlinear ordinary differential equations, subject to algebraic constraints on some of the dependent variables. The height and weight of the human model are 1.80 m and 100 kg, respectively. Numerical simulations of a human model undergoing high-speed rotation are presented to illustrate the theory.
