Finite Element Simulation and Experimental Evaluation of an Ultrasonic Radiator

Document Type : Research Article

Authors

1 Iran University of science and engineering

2 Mechanical Engineering, Iran University of Science and Engineering, Tehran

Abstract

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 circular radiator called ultrasonic airborne. The two main goals in the design are to achieve a nominal resonance frequency of 20 kHz in the longitudinal mode shape of the transducer and booster assembly and the flexural mode shape of the circular 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 consisting of a modal impact test, impedance analysis, and amplitude measurement were performed. Simulation results, including the resonance frequency and position of the node and anti-node, were compared with the experimental results. The experimental test results of the resonance frequency compared with the simulation results, indicate the accuracy of the prediction of the results of the resonance frequency with the designed nominal value (error less than 0.5%). Also, the disturbing mode shapes were at an acceptable distance from the main flexural mode shape of the radiator. Reasonable agreement is achieved between experimental vibration amplitude measurement and finite element simulation predictions (position of the node and anti-node).

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References

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Amirkabir Journal of Mechanical Engineering
Volume 55, Issue 10
January 2024
Pages 1261-1274

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