title: Investigation of a cup-shaped ultrasonic transducer operated in the full-wave vibrational mode.
abstract: 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.
authors.affiliation: Department of Physics, China Jiliang University, Hangzhou 310018, China. Electronic address: xulong@cjlu.edu.cn.
authors.forename: Long
authors.initials: L
authors.lastname: Xu
keywords: Equivalent circuit; Resonance frequency equation; Ultrasonic transducer; Vibrational characteristic