Design and Experimental Implementation of a Beam-Type Twin Dynamic Vibration Absorber for a Cantilevered Flexible Structure Carrying an Unbalanced Rotor

Numerical and Experimental Observations

Abdullah Özer, Mojtaba Ghodsi, Akio Sekiguchi, Ashraf Saleem, Mohammed Nasser Al-Sabari

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This paper presents experimental and numerical results about the effectiveness of a beam-Type twin dynamic vibration absorber for a cantilevered flexible structure carrying an unbalanced rotor. An experimental laboratory prototype setup has been built and implemented in our laboratory and numerical investigations have been performed through finite element analysis. The proposed system design consists of a primary cantilevered flexible structure with an attached dual-mass cantilevered secondary dynamic vibration absorber arrangement. In addition, an unbalanced rotor system is attached to the tip of the flexible cantilevered structure to inspect the system response under harmonic excitations. Numerical findings and experimental observations have revealed that significant vibration reductions are possible with the proposed dual-mass, cantilevered dynamic vibration absorber on a flexible cantilevered platform carrying an unbalanced rotor system at its tip. The proposed system is efficient and it can be practically tuned for variety of design and operating conditions. The designed setup and the results in this paper can serve for practicing engineers, researchers and can be used for educational purposes.

Original languageEnglish
Article number154892
JournalShock and Vibration
Volume2015
DOIs
Publication statusPublished - 2015

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Flexible structures
rotors
absorbers
vibration
Rotors
harmonic excitation
Systems analysis
systems engineering
engineers
Finite element method
Engineers
platforms
prototypes
laboratory

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology
  • Mechanics of Materials

Cite this

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AU - Saleem, Ashraf

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