Waluyo, Sri and Tan, Jinglu (2011) RANGKAIAN SERI TERBATAS MODEL KELVIN-VOIGT UNTUK MENDUGA DINAMIKA TRANSMISI GELOMBANG ULTRASONIK DALAM BAHAN VISKOELASTIK. Prosiding : Seminar Nasional Sains & Teknologi – IV. ISSN 978-979-8510-34-2

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Abstract

A mechanical model representing ultrasound wave transmitted through a viscoelastic medium was developed as a method to measure the mechanical properties of biological materials. A linear state space model was derived numerically to solve the equations of motion. Pseudo random binary sequence (PRBS) signal was designed and used to perturb the medium. This signal has a bandwidth that can be determined to fit with the property of absorptiveness of medium on ultrasound. The model parameters were estimated by fitting between measured signal and simulated signal. The least-squared error was used to justify the identified model parameters. Simulation results showed that the developed algorithm could converge to the assigned values. The model was able to capture the major dynamic of ultrasound wave transmitted through the mediums represented by Kelvin-Voigt model. Finally, the result recommends that the model can be potentially applied to measure the mechanical properties of biological materials.

Item Type:	Article
Subjects:	T Technology > T Technology (General)
Divisions:	Fakultas Pertanian (FP) > Prodi Teknik Pertanian
Depositing User:	IR SRI WALUYO
Date Deposited:	10 Apr 2023 00:57
Last Modified:	10 Apr 2023 00:57
URI:	http://repository.lppm.unila.ac.id/id/eprint/49953

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