ANALYSIS METHOD FOR NON-LINEAR VIBRATION RESPONSE AND FLUTTER OF NON-LINEAR STRUCTURE

摘要

PURPOSE: A method for analyzing non-linear vibration response of a non-linear structure and a plotter is provided to reduce the number of state space by the minimum state method for obtaining stabilized computation of a solution of non-linear partial differentiation. CONSTITUTION: A method for analyzing non-linear vibration response of a non-linear structure and a plotter includes the steps of approximating an abnormal generalization aerodynamics(S1), obtaining a governing equation of the entire system by formulation of a state formula including a non-linear term(S2), computing a solution of a differential equation of the governing equation by using MAT LAB(S3), and computing a vibration displacement, speed and acceleration speed of main parts of an air plane by using the computed solution(S4).