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原文传递 Noise Measurement Flight Test: Data/Analyses Aerospatiale SA 365N Dauphin 2 Helicopter

题名：	Noise Measurement Flight Test: Data/Analyses Aerospatiale SA 365N Dauphin 2 Helicopter
作者：	Beattie, K. R.;Daboin, S. A.;Rickely, E. J.;Newman, J. S.;
关键词：	FLIGHT TESTING, HELICOPTERS, ACOUSTIC MEASUREMENT, AIRCRAFT NOISE, ORIENTATION(DIRECTION), TEST METHODS, METEOROLOGICAL DATA, ENVIRONMENTAL IMPACT, DATA REDUCTION, SOUND TRANSMISSION, DATA ACQUISITION, STANDARDS, MICROPHONES, ACOUSTIC DATA, SOUND PRESSURE, NOISE POLLUTION, HELIPORTS.
摘要：	This report documents the results of a Federal Aviation Administration (FAA) noise measurement flight test program with the Dauphin twin-jet helicopter. The report contains documentary sections describing the acoustical characteristics of the subject helicopter and provides analyses and discussions addressing topics ranging from acoustical propagation to environmental impact of helicopter noise. This report is the second in a series of seven documenting the FAA helicopter noise measurement program conducted at Dulles International Airport during the summer of 1983. The Dauphin test program involved the acquisition of detailed acoustical, position and meteorological data. This test program was designed to address a series of objectives including: (1) acquisition of acoustical data for use in assessing heliport environment impact, (2) documentation of directivity characteristics for static operation of helicopters, (3) establishment of ground-to-ground and air-to- ground acoustical propagation relationships for helicopters, (4) determination of noise event duration influences on energy dose acoustical metrics, (5) examination of the differences between noise measured by a surface mounted microphone and a microphone mounted at a height of four feet (1.2 meters), and (6) documentation of noise levels acquired using international helicopter noise certification test procedures.
总页数：	170
报告类型：	科技报告