CAJ | 학술논문

吹风试验时风洞模型支撑系统往往会产生较大振动，这将影响到风洞试验的准确性和可靠性。因此，研究并实现模型支撑系统的振动控制技术尤其重要。基于压电材料机电耦合行为和振动主动控制原理，设计压电组件嵌入式风洞模型支撑系统；依据刚柔耦合动力学理论，建立模型支撑系统结构振动仿真模型；联合经典PID控制算法，进一步构建模型支撑系统结构控制一体化仿真模型，实现系统主动振动控制仿真；最后，计及接触非线性环节，建立压电组件嵌入式结构有限元模型，校核接触强度，优化嵌入型式。仿真结果表明，压电组件嵌入式模型支撑系统振动控制效果明显，结构安全可靠，具有较强的工程应用性。
취풍시험시풍동모형지탱계통왕왕회산생교대진동，저장영향도풍동시험적준학성화가고성。인차，연구병실현모형지탱계통적진동공제기술우기중요。기우압전재료궤전우합행위화진동주동공제원리，설계압전조건감입식풍동모형지탱계통；의거강유우합동역학이론，건립모형지탱계통결구진동방진모형；연합경전PID공제산법，진일보구건모형지탱계통결구공제일체화방진모형，실현계통주동진동공제방진；최후，계급접촉비선성배절，건립압전조건감입식결구유한원모형，교핵접촉강도，우화감입형식。방진결과표명，압전조건감입식모형지탱계통진동공제효과명현，결구안전가고，구유교강적공정응용성。
When air flows in a wind tunnel,a model support system may have large vibration,it influences the accuracy and reliability of a wind tunnel test.Therefore,it is crucial to study and realize the vibration control technique of a model support system.Based on electromechanical coupling characteristics of piezoelectric materials and active vibration control principle,a piezoelectric package-embedded model support system was designed.Meanwhile,according to the rigid-flexible coupled dynamics theory,the structural vibration simulation model of the model support system was built. Furthermore,associated with the classic PID control algorithm,the integrated structural control simulation model of the model support system was built to simulate its active vibration control.Finally,considering nonlinear contact factors,the finite element model of the piezoelectric package-embedded model support system was built to inspect the contact strength and optimize the embedding style.These simulation results showed that the piezoelectric package-embedded model support system has a fine vibration control capability,and its structure is safe and reliable,so it is applicable to actual engineering.