首先研究了结构的最低阶固有频率的计算方法。
At first the method for calculating the fundamental natural frequency of structure is researched.
以提高低阶固有频率作为动态优化目标函数，对主轴系统进行了优化设计。
The elevation of the shafting system at low-lying step mode acting as an appraisal function, the optimal design of the shafting system was given.
结果表明，考虑随机几何缺陷后，系统的低阶固有频率将降低，内力阵风响应因子将升高。
It is shown that, the basic natural frequency will decrease and the internal force response factor will increase if the random geometric imperfections are taken into consideration.
应用推荐