Impulse response reduction using harmonically varying damping

Daisuke Iba, B. F. Spencer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper proposes a new impulse response reduction method using harmonically varying damping considering a single-degree-of-freedom isolation system. In general, a low damping system is better than a high damping system with respect to steady-state isolation performance at high frequencies. On the other hand, as the mass of the low damping system is subjected to an impulse input, attenuation of the response is slow. In this study, an ideal variable damper is employed to achieve impulse response reduction. If the additional harmonic response caused by the variable damping and the base excitation are at the same frequency as the impulse response and with opposite-phase, the impulse response of the system can be reduced. An expression for the variable damping is developed and the reduction performance is confirmed by numerical simulation.

Original languageEnglish (US)
Title of host publicationASME 2010 Pressure Vessels and Piping Division/K-PVP Conference, PVP2010
Pages209-212
Number of pages4
DOIs
StatePublished - Dec 1 2010
EventASME 2010 Pressure Vessels and Piping Division/K-PVP Conference, PVP2010 - Bellevue, WA, United States
Duration: Jul 18 2010Jul 22 2010

Publication series

NameAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume8
ISSN (Print)0277-027X

Other

OtherASME 2010 Pressure Vessels and Piping Division/K-PVP Conference, PVP2010
CountryUnited States
CityBellevue, WA
Period7/18/107/22/10

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ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Iba, D., & Spencer, B. F. (2010). Impulse response reduction using harmonically varying damping. In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference, PVP2010 (pp. 209-212). (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 8). https://doi.org/10.1115/PVP2010-25758