Study on insect-based flapping-wing system driven by piezoelectric bimorph
WANG Shu-xin~1,CHEN Guo-ping~1,ZHOU Jian-hua~2,YAN Jing-ping~3(1.Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;2.College of Mechanics,Yangzhou University,Yangzhou 225000,China;3.Department of Mechanics,Southeast University,Nanjing 210096,China)
On basis of the insect thorax-wing structure,a(flapping-wing) system consisting of the bimorph piezoelectric actuator,compliant mechanism,and bionic wing was presented.The principle of bimorph piezoelectric actuator was introduced,and the kinematics of compliant four-link mechanism was discussed.Using the quasi-state force theory,the output force at the insect-based wing for overcoming the aerodynamic damping was studied.The simulation results are helpful to determine the motion of insect-based wings.At the same time,the design of bimorph actuators and compliant mechanisms with optimal structure can improve the moving properties of flapping mechanism.
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