Active wind noise hybrid control in motorcycle helmets
نویسندگان
چکیده
منابع مشابه
Attenuation of noise by motorcycle safety helmets.
For workers such as police motorcyclists or couriers, traffic and engine noise reaching the ears is an important factor contributing to the overall condition of their work. This noise can be reduced with motorcycle helmets. In this study, insertion loss of motorcycle helmets was measured with the microphone-in-real-ear technique and sound attenuation with the real-ear-at-threshold method. Resul...
متن کاملMotorcycle Helmet Noise and Active Noise Reduction
The incidence of collisions between motorcyclists and other vehicles may be significantly reduced by research that improves the acoustic awareness of cyclists, and thus heightens the ability of cyclists to respond to unexpected incursions from the surrounding traffic. We use our hearing as an early warning system, and hearing swiftly redirects our vision and attention. This shift in gaze is cri...
متن کاملMotorcycle helmets--medical costs and the law.
Since 1975, 26 states have repealed or modified their motorcycle (M/C) helmet laws. Louisiana (LA) reinstated the M/C helmet law in 1982. The medical and financial impact of repeal in Kansas (KS), reinstatement in LA (accident, fatality, and critical injury rates) have been studied through 1987. Current FARS data and studies from KS, LA, 10 states and 5 countries are compared and reported. With...
متن کاملActive Noise Control in Pardis Coach using Different Fuzzy Controllers
In recent years, need to increase the convenience of trips in railway vehicles causes that train operators and manufacturers focus on reducing the noise level which is sensed by passengers. In this paper, first the state of modeling acoustic noise in cab train is discussed and natural frequencies and acoustic mode shapes are derived and then formulation of acoustic pressure in the cab will be o...
متن کاملOn-road and wind-tunnel measurement of motorcycle helmet noise.
The noise source mechanisms involved in motorcycling include various aerodynamic sources and engine noise. The problem of noise source identification requires extensive data acquisition of a type and level that have not previously been applied. Data acquisition on track and on road are problematic due to rider safety constraints and the portability of appropriate instrumentation. One way to add...
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ژورنال
عنوان ژورنال: Acoustical Science and Technology
سال: 2016
ISSN: 1346-3969,1347-5177
DOI: 10.1250/ast.37.21