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  • Summary & Details

Glass Transmission Noise Reduction for Wind Noise Utilizing Impedance Matching

インピーダンスマッチングを活用したガラス透過音の低減技術

Detailed Information

Category(J)技術論文

Translation

Category(E)TechnicalPaper
Author(J)1) 上山 さぎり, 2) 若原 正明, 3) 鴫原 孝佳, 4) 駒田 匡史, 5) 野尻 昌利, 6) 山田 宜伸
Author(E)1) Sagiri Ueyama, 2) Masaaki Wakahara, 3) Takayoshi Shigihara, 4) Masashi Komada, 5) Masatoshi Nojiri, 6) Yoshinobu Yamada
Affiliation(J)1) トヨタ自動車, 2) トヨタ自動車, 3) トヨタ自動車, 4) トヨタ自動車, 5) 豊田合成, 6) 豊田合成
Abstract(J)風切音の透過経路ではドアガラスの寄与が大きい.このガラス透過音は,従来,板厚増やアコースティックガラスの設定等で低減されてきたが,質量・コストが増加する対策である.そこで本研究では,ガラスランの減衰に着目し,ガラスとのインピーダンスマッチングを活用してガラス透過音を低コストで低減する方法を提案する.

Translation

Abstract(E)In order to improve wind noise in high frequency range above 2kHz, this paper proposes a new technique focusing on high damping glass-run to reduce glass transmission noise due to coincidence effect at low cost. The technique is characterized by controlling energy transmission by utilizing impedance matching between glass and glass-run without changing materials.

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