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FIBROUS BLANK WOVEN IN ONE PIECE BY THREE-DIMENSIONAL WEAVING FOR PRODUCING A PLATFORM WITH A CLOSED BOX STRUCTURE FOR A TURBOMACHINE FAN MADE OF COMPOSITE MATERIAL
FIBROUS BLANK WOVEN IN ONE PIECE BY THREE-DIMENSIONAL WEAVING FOR PRODUCING A PLATFORM WITH A CLOSED BOX STRUCTURE FOR A TURBOMACHINE FAN MADE OF COMPOSITE MATERIAL
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机译:用三维编织法将纤维毛坯一整段编织,以制造具有封闭箱形结构的复合材料涡轮机风扇平台
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摘要
A fiber blank woven as a single piece by three-dimensional weaving to make a closed box-structure platform out of composite material for a turbine engine fan. In each plane of the fiber blank, a set of warp yarns interlinks layers of weft yarns in first, second, and third portions of the fiber blank, while leaving a closed non-interlinked zone separating the first and second portions over a fraction of the dimension of the fiber blank in the warp direction between an upstream non-interlinking limit and a downstream non-interlinking limit, and while leaving at least one open non-interlinked zone separating the second and third portions over a fraction of the dimension of the fiber blank in the warp direction from a non-interlinking limit to a downstream edge of the fiber blank. A method of fabricating a preform for the closed box-structure platform can use such a fiber blank.
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