Vibration isolation of lumped masses supported on beam subjected to varying excitation frequency by imposing node method

ABSTRACT

The vibration absorbers are extensively used for vibration suppression of continuous elastic structure like a beam. The purpose of this research is to present an imposing node method for vibration reduction along the span of the beam for vibration isolation of substructures modelled as lumped masses with the change in excitation frequency. The algorithm is outlined and utilised to find the required absorber resonance frequency and mass to impose node at appropriate locations. The numerical simulations and experimental tests are performed to show the effectiveness of the proposed method.

KEYWORDS:

• Vibration absorber
• imposing node
• vibration isolation
• lumped mass
• cantilever beam

Disclosure statement

No potential conflict of interest was reported by the author.

Additional information

Notes on contributors

Sushil S Patil

Sushil S Patil is Associate Professor of Mechanical engineering at the College of Engineering Malegaon (Bk) India. He received his PhD in Mechanical engineering and ME in Design Engineering from Savitribai Phule Pune University, India. His current research focuses on vibration control of elastic structure using vibration absorbers. He has published number of papers in reputed international journals and conferences.