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Comparison of Spring Models for Dynamics Simulation of Spring Operating Mechanism for Circuit Breaker

[+] Author Affiliations
Jeong-Hyun Sohn, Seung-Kyu Lee

Pukyong National University, Busan, Korea

Seung-Oh Kim

Hyosung Power & Industrial Systems R&D, Changwon, Korea

Wan-Suk Yoo

Pusan National University, Busan, Korea

Paper No. DETC2007-34305, pp. 1017-1023; 7 pages
doi:10.1115/DETC2007-34305
From:
  • ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 5: 6th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, Parts A, B, and C
  • Las Vegas, Nevada, USA, September 4–7, 2007
  • Conference Sponsors: Design Engineering Division and Computers and Information in Engineering Division
  • ISBN: 0-7918-4806-X | eISBN: 0-7918-3806-4
  • Copyright © 2007 by ASME

abstract

Since the performance of the circuit breaker depends on the spring operating mechanism, the analysis of the spring operating mechanism is needed. The spring, especially closing spring, stores the deformation energy due to the compression and then accelerates the big loads rapidly in the circuit breaker. To accurately carry out the kinematic and dynamic analysis of the circuit breaker, the accurate modeling of the spring behavior is needed. In this paper, the static stiffness of the spring is captured by using the tester. Sine excitation tests based on several frequencies and amplitudes are performed to find out the spring characteristics. Test results are used to verify the spring modeling. Three types of spring models such as a linear spring model, modal spring model, and nodal spring model are suggested and compared with the experimental results. Numerical results are compared with the experimental results according to the numerical accuracy and the efficiency.

Copyright © 2007 by ASME

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