Goals and problems in Active Noise and Vibration Control
Dr. Sharad R. Mahajan, Professor, Rajaram Shinde College Of Engineering, Alore, Mumbai University, Chiplun, India.
Manuscript received on September 28, 2013. | Revised Manuscript received on October 07, 2013. | Manuscript published on October 30, 2013. | PP: 325-329 | Volume-3, Issue-1, October 2013. | Retrieval Number: A2292103113/2013©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Noise and vibrations have over the last two decades been regarded as important environmental health problems. Regulations regarding acoustic as well as vibration levels have therefore become more strict. High levels of sound and vibration in different means for personal transportation are often regarded as a important environmental problem. The public alertness of health risks in conjunction with sound and vibration exposure has indirectly, become an important sales argument for manufacturers. Governments and health organizations are already regulating the time and level of sound and vibration that the human body is allowed to be exposed to. These regulations are becoming more and more strict, wherefore new methods for sound and vibration attenuation always are in demand. The new directives from the European Union (EU), from 2005, regarding heavy vehicles (loaders, trucks etc.) constitute an example. Such regulations state that it is not the manufacturer of the heavy vehicle but the employer who has to ensure that the maximum sound and vibration limits, both on a daily and weekly basis, are not exceeded.
Keywords: Active Noise, vibrations, Damping materials, Traffic noise, Surface pavement.