122 ドア閉まり音の定量評価法と閉まり音の改善について(オーガナイズドセッション : O.S.6 交通騒音/振動の制御(自動車・鉄道・航空機II))

概要

論文の詳細を見る
Door is one of the parts in the vehicle, which customers most frequently use in daily life. Door performances such as door closing sound, door closing efforts and door-handle operational efforts contribute greatly to door perceptive quality. In the door perceptive quality, door closing sound plays an important role. This paper describes technical development of door closing sound,especially with respect to the improvement of latch sound, which is one of the most important factors as sources of door closing sound. Door closing sound generated by a door latch is analyzed by Wavelet analysis and high-speed camera. Wavelet analysis enables us to clarify noise characteristics at every 1/1000 second, which is useful for detecting the noise sources by relating the behavior of a door latch visualized by high-speed camera. Such approach stands us in good stead in specifying latch noise sources and improving the structures of door latch. As a result, good door closing sound with soft and grave sound quality can be achieved. Regarding the fruits of the technical development, the closing sound has been greatly improved for new PREMACY and new MPV in addition to the present mass production vehicle.
社団法人日本機械学会の論文
2001-06-05