Experimental investigation of joint clearance effects on the dynamics of a slider-crank mechanism

Erkaya S., UZMAY I.

MULTIBODY SYSTEM DYNAMICS, cilt.24, sa.1, ss.81-102, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 24 Sayı: 1
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1007/s11044-010-9192-0
  • Dergi Adı: MULTIBODY SYSTEM DYNAMICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.81-102
  • Anahtar Kelimeler: Joint clearance, Dynamics of mechanism, Bearing vibration, Shaking force and moment, Noise, CONTINUOUS CONTACT MODEL, MULTIBODY SYSTEMS, 4-BAR LINKAGE, TURNING PAIRS, LEVER MECHANISM, REVOLUTE JOINTS, COUPLER
  • Erciyes Üniversitesi Adresli: Evet

Özet

Clearance is inevitable for assembly and mobility in the kinematic joints of mechanisms. Excessive value of this clearance leads to poor operational characteristics, and these result in losses in kinematic and dynamic performances of mechanism. In this study, effects of joint clearances on vibration and noise characteristics of mechanism are investigated. An experimental test rig has been set up, and a planar slider-crank mechanism having two joints with clearance has been used as a model mechanism. Joint clearance is modeled as a massless virtual link and continuous contact mode between journal and bearing in joint connection is considered in theoretical analyses. Three accelerometers and two microphones have been located at different points to measure the vibrations and noises on system during the mechanism motion. The results obtained for the cases with and without joint clearance are evaluated for vibration and noise characteristics of mechanism.