Direct integration of state equation for dynamic response of structure

摘要

Based on the Precise Integration Method (PIM), the Direct Integration of State Equation Method (DISEM) was developed to calculate the dynamic resonse of the system subjected to deterministic forces. Combined with the iecewise linearization method, it can be used in some nonlinear systems. Some numerical examples were given and the results showed that this method could give very accurate results of the responses, expecially for velocity response, and not be stric with the time step.