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首页> 外文期刊>International journal of design engineering >Design and simulation of a large tubular horn for ultrasonic plastic welding
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Design and simulation of a large tubular horn for ultrasonic plastic welding

机译：大型超声波焊接塑料喇叭的设计与仿真

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摘要

Designing large horns for ultrasonic systems is usually very complex as it involves delivering the specified longitudinal mode at the operating frequency with uniform displacement amplitude at the face of the horn. Large horns are usually designed with slots parallel to the longitudinal motion to control the modal characteristics. The position and dimensions of the slots are critical in achieving the desired longitudinal mode with uniform amplitude at the horn face. Innumerable design iterations followed by analysis are required to achieve this objective. The present study uses design of experiments to optimise the position and size of the slots with minimum design and analysis effort. The response variables studied are the natural frequency, displacement amplitude and von Mises stress of different horn designs found using modal and harmonic analysis by finite element analysis (FEA). The results of the dynamic analysis are used to form regression equations. The optimum design parameters are arrived at based on the regression equation and the plots of main effects of the slot parameters. A horn fabricated using this design was successfully tuned and tested in the industry.
机译：设计用于超声系统的大号角通常很复杂，因为它涉及在工作频率下传递指定的纵向模式，并且在号角表面具有均匀的位移幅度。大号角通常设计有平行于纵向运动的缝隙，以控制模态特性。狭槽的位置和尺寸对于在角面处获得具有均匀振幅的所需纵向模式至关重要。要实现此目标，需要进行无数次设计迭代，然后进行分析。本研究使用实验设计来以最小的设计和分析工作来优化插槽的位置和大小。研究的响应变量是使用有限元分析（FEA）进行的模态和谐波分析发现的不同喇叭设计的固有频率，位移幅度和von Mises应力。动态分析的结果用于形成回归方程。根据回归方程和槽参数的主要影响图得出最佳设计参数。使用此设计制作的号筒已在业界成功调试和测试。

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