The rhomb piezoelectric actuator is the key to vibration control and noise reduction of helicopter with active control flap (ACF) system. Based on the lumped parameter model of rhomb amplification actuator, the equivalent circuit model and simplified model for loading performance computation are developed. The parameter models of distributed and concentrated compliant amplification mechanism are established, and the effectiveness of model is verified by ABAQUS software. The influences of the elastic deformation of rhombic frame and piezoelectric stack with 3 typical configurations on the output displacement and force are analyzed. The reasons for the difference in performance are revealed. The result of spring loaded performance analysis indicates that the output energy is up to maximum when the stiffness of the load equivalent spring is equal to that of the actuator.
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张仕明,高乐,宋彬,胡和平.基于集中参数模型的后缘小翼驱动机构分析[J].压电与声光,2018,40(3):417-422. ZHANG Shiming, GAO Le, SONG Bin, HU Heping. Analysis of Trailingedge Flap Driving Mechanism Based on Lumped Parameter Model[J]. PIEZOELECTRICS AND ACOUSTOOPTICS