1308 新幹線用換気装置稼動時の車内騒音に関する考察 : 車内騒音に及ぼす固体音と透過音の寄与率の検討

概要

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In this paper we describe the experimental study of the contribution ratio between transmission sound and solid borned sound against interior noise level when the ventilating equipment for Shinkansen only operates. From the test resulst, the contribution ratio of transmission noise against interior noise level is much smaller than that of solid borned noise that includes the fluid noise caused by the flowing air in the duct under the floor. We obtained the instruction that decreasing solid boned noise and fluid noise by means of elastic support and expanding the cross sectional area of the duct would be effective measures for decreasing interor noise level.
一般社団法人日本機械学会の論文
2002-12-10