七自由度汽车振动仿真模型建立，叙述了采用多刚体系统动力学建立汽车7自由度振动模型的方法，利用该模型对某汽车的平顺性进行研究。结果证明了该建模方法的正确性和数值计算的稳定性，同时也证明了设计结果的可行性。-seven dofs vehicle vibration

基于多相结构的信道化接收机，数据模型归一化，模态振动，实现六自由度运动学逆解算法。- Channelized receiver based on multi-phase structure, Normalized data model, modal vibration, Six degrees of freedom to achieve inverse kinematics algorithm.

一个四自由度机械振动系统为例, 利用 Matlab仿真软件对多自由度机械振动系统进行建模及仿真分析.(A mechanical vibration system with four degrees of freedom is taken as an example. Modeling and simulation analysis of the multi degree of freedom mechanical vibration system is carried out by using