Dynamic characteristics of collaborated system mainly include naturalvibration frequency and principal mode, which is the base and precondition of dynamic analysis for collaborated system.
协作体系的动力特性主要包括体系的自振频率和主振型,它是协作体系结构动力分析的基础和前提。
2
The natural longitudinal or torsional vibrationof a wedge-shaped shaft is studied with perturbation method. The vibration mode function and the frequency characteristic equation are derived.
采用摄动法研究了楔形杆轴的固有纵扭振动,并且推导出了其固有纵扭振动的振型函数及频率特征方程。
3
Naturalvibration characteristic of gun tube was analyzed triumphantly. Vibration frequency and mode shape were obtained.