钢梁动力响应问题的半解析方法

A S E M I A N A L Y T I C A P P R O A C H O F S O L V I N G D Y N A M I C R E S P O N S E P R O B L E M S O F S T E E L B E A M S

以卷积变分原理为基础，提出求解钢梁动力响应的一种新方法，即空间域内做有限元离散，而时域取级数的方法。该方法可以克服现有方法的缺点，并综合了它们的优点。

A new m ethod of solving the dynam ic response problem s of steelbeam s w as developedaccording to convolution type variationalprinciple, w here finite elem ent discreitization in the placedom ain and series representation in the tim e dom ain w ere considered. This approach can overcom ethe shortcom ing ofprevious m ethods and com bine the advantages ofthose m ethods. The results ofthe exam ples show ed that the new m ethod is feasible.