Investigation of a cup-shaped ultrasonic transducer operated in the full-wave vibrational mode
Investigation of a cup-shaped ultrasonic transducer operated in the full-wave vibrational mode
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全波振动模式下工作的杯形超声波换能器的研究
DOI：
10.1016/j.ultras.2015.02.004
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发表时间：
2015-05-01
期刊：
影响因子：
4.2
通讯作者：
Xu, Long
中科院分区：
文献类型：
--
作者：
Xu, Long
杯形变幅杆在超声加工中有着重要的应用，如塑料薄板或带材的连续粘接。通常，它由夹层压电换能器激励，两者一起构成杯形超声换能器（CUT）。为了给其工程应用提供一个简明的理论模型，推导了杯形超声换能器的等效电路，得到了谐振/反谐振频率方程。同时，采用解析和数值方法对杯形超声换能器的振动特性进行了研究，并通过实验进行了验证。结果表明，杯形变幅杆具有独特的等效电路，杯形超声换能器具有良好的振动性能。(C)2015 Elsevier B. V.版权所有。
Cup-shaped horn has significant applications in ultrasonic machining, such as continuous bonding of plastic sheet or strips. Generally, it is excited by a sandwich piezoelectric transducer and both together constitute a cup-shaped ultrasound transducer (CUT). To provide a concise theoretical model for its engineering applications, the equivalent circuit of the cup-shaped ultrasonic transducer is deduced and the resonance/anti-resonance frequency equations are obtained. Meanwhile, the vibrational characteristics of the cup-shaped ultrasonic transducer have been investigated by using the analytical and numerical methods, and then confirmed by the experiment. The results show that the cup-shaped horn has a distinctive equivalent circuit, and the cup-shaped ultrasonic transducer has a good vibrational performance. (C) 2015 Elsevier B.V. All rights reserved.