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International Conference on Information, Electronic and Computer Science (ICIECS 2010 E-BOOK)

Zibo,China,11.26-11.28,2010

ISBN: 978-1-935068-42-6 Scientific Research Publishing, USA

E-Book 2224pp Pub. Date: November 2010

Category: Computer Science & Communications

Price: $360

Title: Research on Measuring System for Damping Material’s Elastic Parameter with the Amplitude Fitting Method
Source: International Conference on Information, Electronic and Computer Science (ICIECS 2010 E-BOOK) (pp 554-557)
Author(s): Cuiping Gao, College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China
Hui Sun, College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China
Abstract: The damping material because of the particular micro-structure in the vibration and noise control aspects and underwater acoustic engineering have been very widely used. Elastic damping material parameters are the basis of engineering data. Presently there has been many methods of measuring elastic parameters, but the low Young's modulus measurement of the dynamic elastic parameters still no accepted standard method. Fitting the amplitude of longitudinal vibration of rods with a uniform theory, constructed experimental system, with polyurethane flexible rod as the research object, by measuring different frequency on every point of the longitudinal vibration amplitude distribution, and drew the amplitude curves, application of the minimum squares curve fitting the dynamic elastic parameter inversion. With the resonance method of measurement results were compared, demonstrated the feasibility of the method and stability, and the experimental results are analyzed.
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