Vibration control capability of a combined tuned absorber and impact damper, under a random excitation, is investigated numerically and experimentally. The effectiveness of the optimal combined absorber and its sensitivity to variations of the clearance, restitution coefficient and the mass ratio be
A MODIFIED PASSIVE TUNED ABSORBER FOR SECONDARY SYSTEMS UNDER RANDOM EXCITATION
β Scribed by S. Ma; S.E. Semercigil
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 311 KB
- Volume
- 208
- Category
- Article
- ISSN
- 0022-460X
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β¦ Synopsis
Secondary systems may have to endure severe vibration amplitudes under the influence of the primary structures on which they are mounted. A series of numerical case studies are presented in this paper to investigate the effectiveness of a tuned vibration absorber with an impact damper, to attenuate the excessive vibration amplitudes of light secondary systems. In addition, experimental measurements are reported for some selective cases and comparisons are made with numerical predictions. This suggested configuration seems suited ideally as an add-on enhancer for existing conventional absorbers. Results are presented for random white noise excitation.
π SIMILAR VOLUMES
Previous research has shown that piezoelectric materials can be shunted with electrical networks to form devices that operate similarly to a mechanical vibration absorber. These systems can be tuned to provide modal damping (modal tuning) or to attenuate a harmonic disturbance (tonal tuning). Semi-a