Geometrical design method of multi-degree-of-freedom dynamic vibration absorbers

Seon J. Jang, Yong J. Choi

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


This paper presents a new geometrical design method of multi-degree-of-freedom (mdof) dynamic vibration absorbers that reduce multiple modes of vibration. The design of an mdof vibration absorber involves, in general, the complexity of the equations and large numbers of design variables. For this reason, previous researches mainly focused on finding optimized stiffness and damping values that minimize the vibration responses. In this paper, we introduce a simple geometrical design method in which the sets of three mutually orthogonal line springs are used to first simplify the stiffness matrix. The dynamic equations of a main body and an absorber are then decoupled to obtain the geometric design rules for an mdof absorber. Numerical examples are used to illustrate the new design method.

Original languageEnglish
Pages (from-to)343-356
Number of pages14
JournalJournal of Sound and Vibration
Issue number1-2
Publication statusPublished - 2007 Jun 5

Bibliographical note

Funding Information:
This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD) (KRF-2005-041-D00056).

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Acoustics and Ultrasonics
  • Mechanical Engineering


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