振动筛结构动力修改的研究

Research for Dynamic Modification of Vibration Screen

简述结构动力修改基本方法,提出结构小修改情况下基于摄动理论的固有频率和响应的预测,并给出实例对修改方法进行具体计算验证,为振动筛的设计和动力修改提供重要参考。

The basic method for dynamic modification of structure was introduced. And forecasts the inherent frequency and response for the small changes of structure which bases on the perturbation theory. An example is given to prove the modification method, which can supply an important reference for the research of vibrating screen.