超声波塑料焊机电声转换系统输出振幅响应的有限元模拟

Simulation of Output Amplitude Response of Electroacoustic Converting System in an Ultrasonic Plastic Welder Using the Finite Element Method

建立了电声转换系统的力学模型,确定了系统激励力与输入电功率之间的定量关系,采用有限元方法对系统的输出振幅响应进行了模拟,验证结果表明,模拟结果可以满足设计要求,为电声转换系统的设计与制作提供了一种简单、有效的检验方法。

In this paper, a mechanical model of electroacoustic converting system is established, the quantitative relationship between exciting force and input electric power of the system is determined, and the output amplitude response is simulated using the finite element method. Testing experiments indicate that simulating results may meet the needs of the design of electroacoustic converting system. It is a simple and effective method for inspecting the design and manufacture of the system.