Vibrations of machines and structures vanish perfectly at a certain frequency when they have a vibration absorber without damping. But if forced frequencies vary from the anti-resonance frequency, their vibration amplitudes increase signi"cantly. Then the absorber without damping cannot be applied t
Optimal design of a damped dynamic vibration absorber for vibration control of structure excited by ground motion
β Scribed by W.O. Wong; Y.L. Cheung
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 329 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0141-0296
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β¦ Synopsis
Optimum parameters of a dynamic vibration absorber of non-traditional form have been derived for suppressing vibration of a single degreeof-freedom system due to ground motion. The reduction of transmission of motion from the support to the mass of the structure is compared for the cases of using the traditional and the proposed dynamic absorbers. Under the optimum tuning condition of the absorbers, it is proved analytically that the proposed absorber provides a larger suppression of resonant vibration amplitude of the primary system excited by ground motion than the traditional absorber.
π SIMILAR VOLUMES
In this paper an application of the Chebyshev's criterion to the optimal design of the damped dynamic vibration absorber is presented. The results are summarized in ready-to-use computational graphs. The reliability of the proposed method is demonstrated through a comparison of the numerical results
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