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公开(公告)号:US20080315462A1
公开(公告)日:2008-12-25
申请号:US11767667
申请日:2007-06-25
IPC分类号: G01B17/02
CPC分类号: G01B17/02
摘要: A system for monitoring at least one of a resin infusion process and a composite cure cycle of a composite article is provided. The system includes an ultrasonic transmitter configured to deliver an acoustic wave to a resin-infused fiber preform and an ultrasonic receiver configured to receive the acoustic wave propagated through the resin-infused fiber preform. The system also includes a processor configured to estimate at least one parameter using the received acoustic wave and to use the at least one parameter to determine an extent to which at least one resin has infused into the resin-infused fiber preform.
摘要翻译: 提供一种用于监测复合制品的树脂浸渍工艺和复合固化循环中的至少一个的系统。 该系统包括被配置为将声波传送到树脂注入的纤维预制件的超声波发射器和被配置为接收通过树脂输入的光纤预制棒传播的声波的超声波接收器。 该系统还包括配置成使用接收到的声波来估计至少一个参数并且使用至少一个参数来确定至少一个树脂注入到树脂注入的纤维预制件中的程度的处理器。
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22.
公开(公告)号:US06884507B2
公开(公告)日:2005-04-26
申请号:US10366257
申请日:2003-02-13
申请人: Wendy Wen-Ling Lin , Scott Roger Finn , Kevin Warner Flanagan , Joseph Timothy Stevenson , James Claude Carnahan
发明人: Wendy Wen-Ling Lin , Scott Roger Finn , Kevin Warner Flanagan , Joseph Timothy Stevenson , James Claude Carnahan
CPC分类号: F01D5/147 , C08G18/10 , C08G2101/00 , C08J9/32 , C08J2203/22 , C08J2375/04 , F01D5/28 , Y02T50/672 , Y02T50/673 , Y10T428/2985 , C08G18/3814
摘要: The present invention provides tough, high modulus, low density thermoset polyurethane compositions which are useful in general as, for example, cast structural materials and in a preferred embodiment can be cured directly onto an aircraft engine fan blade, thereby providing a lighter blade, without concomitant loss in structural integrity or blade performance due to, for example, resistance to foreign object impacts and fuel efficiency. In a preferred embodiment, the composition is comprised of bis-amine compounds reacted with isocyanate-functional polyether polymers in the presence of hollow polymeric microspheres. The thermoset polymer compositions are formed by casting into a mold which is formed by a cavity within the metallic or composite fan blade or guide vane in the form of a pocket and a removable caul sheet. After the elastomeric polyurethane foam is injected through at least one injector port into the mold, the foam is cured.
摘要翻译: 本发明提供了韧性,高模量,低密度的热固性聚氨酯组合物,其通常可用于例如铸造结构材料,并且在优选实施方案中可直接固化到飞机发动机风扇叶片上,从而提供较轻的叶片,而不需要 结构完整性或叶片性能的伴随损失,例如由于抵抗异物影响和燃油效率。 在优选的实施方案中,组合物由在中空聚合物微球存在下与异氰酸酯官能的聚醚聚合物反应的双 - 胺化合物组成。 热固性聚合物组合物通过浇铸到由金属或复合风扇叶片或导向叶片内的空腔形成的模具形成,其形式为口袋和可移除的盖板。 在通过至少一个注射器端口将弹性体聚氨酯泡沫注入到模具中之后,泡沫体被固化。
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公开(公告)号:US5931641A
公开(公告)日:1999-08-03
申请号:US932870
申请日:1997-09-18
申请人: Scott Roger Finn , Ravindra Kumar Pandey , John James Fitzgerald , William Elliott Bachrach , Donald Frederick Mowbray
发明人: Scott Roger Finn , Ravindra Kumar Pandey , John James Fitzgerald , William Elliott Bachrach , Donald Frederick Mowbray
CPC分类号: F01D5/147 , F05D2220/31 , F05D2220/32 , F05D2220/327 , Y02T50/672 , Y02T50/673
摘要: A lightweight steam turbine blade includes a metallic airfoil portion with at least one surface recess containing a void volume having adjacent first and second regions. Filler material is placed in and bonded to the surface recess and generally completely fills the void volume. The filler material in the first region has a higher average modulus of elasticity than that of the filler material in the second region.
摘要翻译: 轻质汽轮机叶片包括具有至少一个具有相邻的第一和第二区域的空隙体积的至少一个表面凹槽的金属翼型件部分。 填充材料放置在表面凹槽中并结合到表面凹槽中,并且通常完全填充空隙体积。 第一区域中的填充材料具有比第二区域中的填充材料更高的平均弹性模量。
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