| A new type of flange-shaped stator ultrasonic motor is proposed in order to improve the efficiency and output performance of Columnar bending ultrasonic motor.An efficient finite element analysis platform based on ANSYS redevelopment technology is built for the dynamic analysis of flange-shaped stator ultrasonic motor to eliminate the low efficiency of finite element analysis of ultrasonic motor by APDL ANSYS.The platform interface was designed using the parameterized APDL language in ANSYS combined with the C# programming language.ANSYS interface is embedded into the platform.the plateform solves the problem that the ANSYS software and the processes of analysis are complicated,so that the analysis efficiency of the flange-shaped stator ultrasonic motor is improved;on the other hand,the parameterization of the whole process of the dynamic analysis of the flange-shaped stator ultrasonic motor is achieved.The vibration characteristics of the flange-shaped stator are obtained such as the modal frequency and vibration mode of the flange-shaped stator,the relation between the amplitude of the point on the end face and frequency,and the motion track of the point on the end face of the flange-shaped stator.The dynamics simulation results also verify that the flange-shaped stator ultrasonic motor can provide driving force to make the tortor move.In order to optimize the output performance of the flange-shaped stator ultrasonic motor,the amplitude value with different arrangement of piezoelectric ceramic piece is analyzed.Also,the parametric modeling of flange-shaped stator ultrasonic motors is built.When the maximum amplitude value of the stator end face is set as the objective function,the four geometric parameters of the stator are optimized using Workbench.The final dimensions of the stator is obtained to decrease the amplitude on the points of the end face of flange-shaped stator,and the result shows that research will improve the performance of flange-shaped ultrasonic motor. |
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