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Professor Rajendra Singh

Dr. Rajendra Singh is well recognized for research in machine dynamics, vibration and acoustics with applications to automotive systems and geared drives. Over the past 37 years at Ohio State, he has published more than 225 journal articles, successfully supervised over 115 PhD & MS students, and held the distinguished Donald Glower Chair at Ohio State for 15 years until his retirement in 2014. Dr. Singh is a fellow of ASME, ASA, SAE, and INCE/USA, and has received many national awards for both teaching and research.   He has served on several editorial and international conference boards, and was the President of the Institute of Noise Control Engineering/USA in 2003.

Lab: Acoustics and Dynamics Laboratory

refer to over 225 journal publications which provide specific information on the advanced methods used and knowledge generated

This laboratory is concerned with the analysis, design and synthesis of automotive and mechanical systems for reducing noise, shock and vibration; development of inter-relationships between dynamic forces and motions in rigid or elastic machine elements; study of complex acoustic sources and transmission paths; techniques for passive and active noise control; and digital signal processing for sound quality, system identification, and diagnostics. Since most mechanical systems exhibit significant nonlinearities associated with clearance nonlinearities (such as backlash and multi-staged springs), dry or sliding friction, finite amplitudes, etc., nonlinear dynamic studies are emphasized.


Simulation Capabilities:

  • Nonlinear torsional system dynamics
  • multi-body dynamics; finite and boundary element methods (for vibration and acoustic problems)
  • multi-physics problems
  • characterization of visco-elastic materials and vibration control devices

Experimental Capabilities:

Major facilities include several multi-channel FFT analyzers, modal testing systems, laser scanning system; acoustic intensity probes, small scale acoustic rooms and an assortment of exciters and transducers. Benchtop experiments are conducted to develop and validate simulation models.