Optimization of the Location of Secondary Sources for the Active Engine Vibration Acoustic Noise Control in the Generator Room

Abstract:

The noise acoustic control in the interior of a diesel engine generator room model is studied and optimized. The finite element modelling and discretization of the engine room is carried out and the noise control is achieved using global active control of sound. The Genetic algorithm (GA) is used to find the optimized location of secondary sources to minimize the sound pressure level at receiver’s location. The secondary sources strengths for the active noise control system are computed using quadratic minimization acoustic potential energy. It is found that the sound pressure level at receiver’s location has been significantly reduced with changing the secondary source positions from arbitrarily to optimal location.

• Periodical: Applied Mechanics and Materials (Volumes 766-767)
• Pages: 968-973
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.766-767.968
• Online since: June 2015
• Authors: T. Ramachandran*, M.C. Lenin Babu
• Keywords: ANC, GA, Poroelastic Material, Secondary Sources

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