CAJ | 학술논문

目的：研究剪切模型箱在复合环境下的动力学响应规律。方法针对叠层式剪切模型箱的结构特点，建立考虑层间滑动的动力学模型。通过对离心机在工作状态下的动力学特性进行模拟，结合设计指标，对剪切模型箱进行离心振动复合环境下的响应分析。结果得到了剪切模型箱的激励力谱，以及模型箱在不同过载及振动环境状态下的固有特性。结论离心工作环境下，模型箱固有频率变低。离心载荷是影响模型箱强度设计的主要因素。
목적：연구전절모형상재복합배경하적동역학향응규률。방법침대첩층식전절모형상적결구특점，건립고필층간활동적동역학모형。통과대리심궤재공작상태하적동역학특성진행모의，결합설계지표，대전절모형상진행리심진동복합배경하적향응분석。결과득도료전절모형상적격려력보，이급모형상재불동과재급진동배경상태하적고유특성。결론리심공작배경하，모형상고유빈솔변저。리심재하시영향모형상강도설계적주요인소。
ABSTRACT:Objective To investigate the dynamic response of shear model box in Compound Dynamical Environment. Methods Based on the structure characteristics of multidirectional laminar shear model box, the dynamic model was established considering the slippage of different layers. According to the dynamic simulation on the working status of whole centrifuge model, the spectrum of excited force was obtained. Then the dynamic response of shear model box was investigated combined with the effect of centrifugal and vibration compound. Results The excited force spectrum of shear model box was obtained, as well as the natural characteristics of shear model box in different overload and vibration environments. Conclusion The natural frequencies of shear model box decreased as a result of centrifugal effect, and the centrifugal load was the major influencing factor for the strength design of shear model box.