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1. 发明授权

US5523530A Elastomeric acoustic insulator 失效
标题翻译：弹性声隔离器
公开(公告)号：US5523530A
公开(公告)日：1996-06-04
申请号：US279530
申请日：1994-07-25
申请人： Francis E. Byrnes , Ralph D. Costanza , Charles Isabelle
发明人： Francis E. Byrnes , Ralph D. Costanza , Charles Isabelle
IPC分类号： B64C27/00 , F16F15/08 , F16F15/00
CPC分类号： B64C27/001 , F16F15/08
摘要： An acoustic isolator is incorporated between a noise generating device and a support structure, such as between a transmission housing and an airframe. The isolator has a first fitting which attaches to the noise generating device, and a second fitting which attaches to the support structure, with an acoustic attenuation member disposed therebetween. Preferably, a first elastomer member is disposed between a pair of vertical walls of the first and second fittings. Optionally, a second elastomer member is disposed between an upper surface of the supporting structure and a lower surface of the second fitting such that horizontal loads are reacted therethrough. Alternatively the first and second elastomers comprise a spherical elastomer member and a cylindrical elastomer member in the form of a spherical bearing. The acoustic isolator thus allows rigid attachment of the adjacent structures yet provides acoustic isolation of complex forces which would normally transmit noise through the structure, particularly those from the vertical, lateral and fore/aft directions. Utilizing the inventive acoustic isolator, noise transmission through the support structure can be substantially reduced.
摘要翻译：声学隔离器结合在噪声产生装置和支撑结构之间，例如在变速器壳体和机身之间。隔离器具有附接到噪声产生装置的第一配件和附接到支撑结构的第二配件，其间设置有声衰减构件。优选地，第一弹性体构件设置在第一和第二配件的一对垂直壁之间。可选地，第二弹性体构件设置在支撑结构的上表面和第二配件的下表面之间，使得水平负载通过其反作用。或者，第一和第二弹性体包括球形弹性体构件和呈球形轴承形式的圆柱形弹性体构件。因此，声隔离器允许相邻结构的刚性附接，但是提供通常通过结构传播噪声的复杂力的声学隔离，特别是来自垂直，横向和前/后方向的结构。利用本发明的声隔离器，可以显着地减少通过支撑结构的噪声传输。

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