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Title: Noise and vibrations reduction of stone cutting factories
Authors: Abu Hanieh, Ahmed 
AlBalasie, Ahmad 
Keywords: stone cutting - Vibration;Noise reduction;Sound pressure - Measurement;Sound absorbers;LQR;IFF;Acoustical materials;Linear–quadratic regulator
Issue Date: Feb-2021
Publisher: International Journal of Mechanical and Mechatronics Engineering
Source: Ahmed Abu Hanieh and Ahmad Al Balasie, Noise and Vibrations Reduction of Stone Cutting Factories, International Journal of Mechanical and Mechatronics Engineering, IJENS, Volume 21, number 1, pp 48-63, February 2021
Journal: International Journal of Mechanical & Mechatronics Engineering 
Series/Report no.: IJENS;
Abstract: This research handles the problem of noise pollution caused by the stone cutting processes in the medium and small factories located close to the populated areas. Noise can be reduced by two main ways: the first method is done by adding sound absorbers to the workshop surrounding walls; the second technique is by building a barrier wall in front of the open facade of the factory. This paper introduces three techniques to reduce the vibration in the stone cutting machine knowing that vibration is the main source of noise, the techniques are: inserting a passive elastomeric rubber pad, designing an active controller based on Integral Force Feedback (IFF), and designing a regulator based on Linear Quadratic Regulator (LQR) for active control of vibrations. Simulation results show the ability of these techniques to regulate the vibrations at various levels.
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