【摘要】 本文提出了一种无界面模态综合法,使用这种方法不进行第二次坐标变换。此方法的另一个优点在于它是无界面的子结构,动力方程的缩减不受界面目由度的控制。为了在子结构内取较少的模态和得到较高的精度,提出了两种修正方案,经过修正之后,就能达到降阶和提高精度这两个目的。更多还原

【Abstract】 In this paper a non-interface method of the mode synthesis has been developed. Using this method, we need not take the second coordinate transformation. Another advantage of the method is that the order of the reduced dynamic equations will not be controlled by degrees of freedom on interface, because there is not any interface between substructures. In order to get higher precision and take fewer modes, some improvement schemes are introduced. After these improvements, both advantages of the higher precision and the cost reduction can be gotten.更多还原