Vibration characteristics of orthotropic shaft–disk system with different constrained damping layers: experimental and numerical study

• Published in: International journal of advanced manufacturing technology Vol. 65; no. 5-8; pp. 601 - 610
• Main Authors: Venkatachalam, R., Prabu, S. Balasivanandha
• Format: Journal Article
• Language: English
• Published: London Springer-Verlag 01.03.2013; Springer Nature B.V
• Subjects: CAE) and Design; Computer-Aided Engineering (CAD; Core loss; Electrorheological fluids; Engineering; Finite element method; Graphite fiber reinforced plastics; Graphite-epoxy composites; Industrial and Production Engineering; Magnetorheological fluids; Mechanical Engineering; Media Management; Original Article; Resonant frequencies; Systems analysis; Vibration damping; Viscoelasticity; Composite; Electrorheological; Magnetorheological; Shaft–disk structure; Finite element
• ISSN: 0268-3768; 1433-3015
• DOI: 10.1007/s00170-012-4199-8

This paper reports the results of an investigation carried out to study the effect of various constrained layers (viscoelastic layer (VEL), electrorheological fluid, and magnetorheological fluid) on natural frequency and damping factor. The different fiber orientations (0°, 30°, 45°, 60°, and 90°) were considered for glass/epoxy (G/E) and graphite/epoxy (GR/E) shaft–disk systems. Experimental evaluation and finite element technique are employed to investigate the natural frequency and damping factor for various combinations. The vibrational characteristics of the composite sandwich shaft–disk system are also compared in this present study. From the study, it is evident that the VEL core shows excellent frequency and damping loss factor performances, and the 90° fiber-oriented composites are dominant in vibration damping performances. The GR/E shaft–disk system outperforms the G/E shaft–disk system.