基于复合材料超声直线电机振子的有限元分析  

Finite Element Analysis of the Vibrator of the Composite Ultrasonic Linear Motor

作　　者：郭芳[1] 曾周末[1] 李鹏程[1] 靳世久[1] 

机构地区：[1]天津大学精密测试技术与仪器国家重点实验室,天津300072

出　　处：《压电与声光》2009年第3期381-383,共3页Piezoelectrics & Acoustooptics

摘　　要：用有限元数值分析法,研究了一种利用各向异性的复合材料作为振动体的超声直线电机模型。首先,在各向异性复合材料振动体的振动解析基础上,建立碳纤维增强型复合材料(CFRP)振动体的数值分析模型;然后,研究复合材料超声直线电机的多种振动模态;最后,分析CFRP纤维角不同时对电机性能的影响。结果表明,电机在B(1,1)振型下具有最简振动模态,CFRP的纤维角为45°时电机工作性能最好。表明有限元法是研究复合材料超声直线电机的有效方法。A type of ultrasonic linear motor by using anisotropic composite material as the vibrator is studied by the finite element numerical analysis method. Based on the analytical solution of the vibrator of anisotropic composite material,the model of the composite material CFRP （Carbon Fiber Reinforced Plastic） vibrator was established. The vibration modes of the composite ultrasonic linear motor were analyzed,and the simulation results of the CFRP with different carbon fiber angles were compared. The results showed that the motor had the simplest vibration mode at the B（1,1）mode shape and had the best operating performance at 45-degree of carbon fiber angles of CFRP. It indicated that the finite element analysis was the effective analysis method of studying the composite ultrasonic linear motor.

关 键 词：复合材料 超声直线电机 碳纤维增强型复合材料(CFRP) 有限元 振动模态 

分 类 号：TM359[电气工程—电机]