STRUCTURAL DYNAMICS MODELING AND EXPERIMENTAL STUDY OF AXIALLY PRECOMPRESSED PIEZOELECTRIC BIMORPH
Piezoelectric bimorph has many advantages such as light weight, small volume and no electromagnetic interference.It has a very significant advantage in the application of MAV and intelligent ammunition rudder control.The axial force can effectively improve the output performance and the electromechanical conversion efficiency of the bimorph.In order to provide theoretical basis for structural design and parameter optimization of axial compression bimorph, based on the assumption of Bernoulli-Euler beam, a structural dynamic model of axial compression bimorph was established based on Hamiltonian principle.Then, the static deformation, the natural vibration, the amplitude-frequency characteristic and the buckling critical load of the bimorph were deduced.Then the calculated results of the above model were compared with ANSYS simulation results and test results to verify the accuracy of the model.
Piezoelectric bimorph Mechanical model Hamiltonian principle Axial pre-compression
Shi-xiang LIU Chao CHEN Heng CHEN Gang CHENG
State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics
国际会议
The 2017 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2017全国压电和声波理论及器件技术研讨会)
成都
英文
240-244
2017-10-27（万方平台首次上网日期，不代表论文的发表时间）