نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانش آموخته دانشکده مهندسی مکانیک دانشگاه علم و صنعت ایران
2 گروه ساخت و تولید، دانشکده مهندسی مکانیک، دانشگاه علم و صنعت ایران، تهران، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In the current research, finite element simulation and experimental tests have been used to design, manufacture and evaluate the performance of a high-power ultrasonic radiator. The two main goals in the design are to achieve a nominal resonance frequency of 20 kHz in longitudinal mode shape of the transducer and booster assembly and the flexural mode shape of the radiator plate and to remove the disturbing modes from the frequency range of the main mode shape. After designing and manufacturing the sample based on the simulation results, experimental tests of modal analysis, impact test and impedance analysis were performed to evaluate the performance characteristics of the ultrasonic radiator. In order to verify the accuracy, the simulation results, including the resonance frequency and position of the node and anti-node, were compared with the experimental test results. The results of the experimental tests to determine the resonance frequency and compare it with the simulation results (error less than 0.5%), indicate the accuracy of the prediction of the results and the matching of the resonance frequency with the designed nominal value. Also, the disturbing mode shapes were at an acceptable distance from the main flexural mode shape of the radiator. Finally, the vibration amplitude measurement test results show that the position of the node and anti-node points in the experimental test match with the finite element simulation results.
کلیدواژهها [English]
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