结构振动与响应特性分析的有限元Matlab程序，包括：ritz方法、lanczos方法、Newmark方法、中心差分法和振型叠加法-Finite element matlab program for structure vibration and dynamic response feature analysis,including ritz,lanczos,Newmark,center difference and mode superposition

利用模态叠加法实现对四自由度系统的共振频率与前四阶主振型的求解(The method of modal superposition is used to solve the resonance frequency and the first four main vibration modes of the four degree of freedom system.)

结构动力学计算应用程序编写（振型叠加法、）(Structural dynamic calculation)

采用振型分解法，Newmark-beta法，振型叠加法，对车桥系统进行动力分析(The vibration mode decomposition method, Newmark beta method and mode superposition method are used for dynamic analysis of vehicle bridge system)