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1. 发明授权

US5132168A Lightning strike protection for composite aircraft structures 失效
标题翻译：复合飞机结构的防雷保护
公开(公告)号：US5132168A
公开(公告)日：1992-07-21
申请号：US548282
申请日：1990-07-05
申请人： William A. Meyn , John Wilson , Gerald A. Lunde , Melinda E. Huber-Lavalle
发明人： William A. Meyn , John Wilson , Gerald A. Lunde , Melinda E. Huber-Lavalle
IPC分类号： B29C53/66 , B29C70/22 , B29C70/88 , B64D45/02
CPC分类号： B29C53/665 , B29C70/22 , B29C70/885 , B64D45/02 , B29K2995/0005 , Y10S428/902 , Y10T428/30 , Y10T442/3041
摘要： A composite structure for aircraft having features making it resistant to structural damage when subjected to lightning strikes. Fiber tow is wound over a rotating shaping surface which is a surface of revolution. Spaced bands of tow are laid down in a helical pattern with varying spaces between bands. Some bands are typically wound at an angle of about +45.degree.. By selectively winding in one direction and then the other, a "basketweave" pattern is obtained. Typically, the tow consists of high strength fibers in a thermosetting or thermoplastic resin matrix wound to a four layer thickness. When cured, the structure has high strength and low weight and is excellent for structures such as aircraft engine cowls. The basketweave pattern gives excellent resistance to peeling and delamination upon being struck by lightning, the types of damage which are likely to occur with the usual hoop or other continuous windings. The resistance to lightning strikes is further increased by winding one or more conductive filaments in a helical pattern, under tension, over the structure before the resin is cured. The conductive filaments serve to dissipate lightning energy over a large area and carry the charges away rapidly without being subject to peeling or separation from the composite structure surface.
摘要翻译：用于飞机的复合结构，具有使其在遭受雷击时抵抗结构损坏的特征。纤维丝束缠绕在旋转表面上，旋转成形表面是旋转表面。丝带的间隔带以带状之间的不同空间的螺旋图案放置。一些条纹通常以约+45°的角度缠绕。通过选择性地卷绕在一个方向上，然后另一个方向上，获得“网络”图案。通常，丝束由缠绕成四层厚度的热固性或热塑性树脂基体中的高强度纤维组成。固化时，该结构具有高强度和低重量，并且对于诸如飞机发动机罩的结构是优异的。基于网络的图案，可以很好地抵抗由于雷击而导致的剥离和分层，这些类型的损伤可能会发生在通常的环形或其他连续绕组上。通过在树脂固化之前将一种或多种导电细丝缠绕在结构上，在张力下以螺旋形式缠绕，从而进一步增加了对雷击的抵抗力。导电丝用于在大面积上散发闪电能量，并迅速带走电荷，而不会从复合结构表面剥离或分离。

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