Bhopal Gas Disaster: A Case Study on the Bhopal Tragedy ! Mass Panic: It was a chilly December night in Bhopal in 1984 between 12.30 and 1 a.m. when people woke up, coughing violently and with eyes burning as if chilli powder had been flung into them. Poisonous gas was spreading in high concentration. As […]
Bhopal Gas Disaster: A Case Study on the Bhopal Tragedy | India
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How to Reduce Gear Noise in Industries?
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There are five fundamental and distinct approaches to gear noise reduction available to the acoustical engineer: 1. Change the basic gear type or material. 2. Modify the tooth profile. 3. Introduce damping or shock reducing material 4. Increase the transmission loss TL of the gear box. 5. Total enclosure. Often a combination of selected measures […]
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List of Vibration Control Devices Used in Industries | Noise Pollution
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One of the most common sources of noise in industry is the noise generated from vibrating machinery. For example, a 5-hp motor rotating at 1800 rpm is rather quiet, but if it is bolted directly to a metal table, the noise level can rise easily to 90 dBA at a distance of 5 ft. In […]