CAJ | 학술논문

　　为了检验筛选机筛箱的刚度以及确定原型机的设计是否达到应有的效果，设计了手动锤击和自动振动两种模态测试试验方法。通过简便易行的试验方法测得了筛选机的各阶固有频率，由测振系统动态显示的振型图确定了筛箱结构的薄弱部位，为对筛选机的结构进行动态修改提供依据。
　　위료검험사선궤사상적강도이급학정원형궤적설계시부체도응유적효과，설계료수동추격화자동진동량충모태측시시험방법。통과간편역행적시험방법측득료사선궤적각계고유빈솔，유측진계통동태현시적진형도학정료사상결구적박약부위，위대사선궤적결구진행동태수개제공의거。
In order to test the screen case rigidity and determine the design effect of prototype it designs two kinds of mo -dal test methods , one is manual hammer , another automatic vibration .It shows the screener ’ s inherent frequency by the simple and feasible test .On the basis of the Vibration Mode figure shown by the dynamic vibration , it gets the screen case ’ s weak parts , which will provide the basis to make a dynamic improvement of the screener structure .