Design method of thermal shrinkage core mold air bag structure for helicopter blade

The invention discloses a design method of a thermal shrinkage core mold air bag structure for a helicopter blade. The design method comprises the following steps: designing an actual thermal shrinkage core mold air bag shape, manufacturing a core mold by adopting a heating thermal shrinkage materia...

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Bibliographic Details
Main Authors LIU QIDI, LI JIACHEN, REN MIAO, LI LILI, CHENG YING, TONG SHUHUI, ZONG XIAOTIAN, HAO GANGNING, ZHAO XUEYING, LYU NAN
Format Patent
LanguageChinese
English
Published 14.03.2023
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The invention discloses a design method of a thermal shrinkage core mold air bag structure for a helicopter blade. The design method comprises the following steps: designing an actual thermal shrinkage core mold air bag shape, manufacturing a core mold by adopting a heating thermal shrinkage material, covering a layer of air bag on the outer surface of the core mold, and adding a supporting rod piece for improving the overall rigidity of the core mold in the core mold; the air bag forming die adopts a mortise and tenon joint process, and the wedge-shaped connecting pieces at the connecting positions are arranged on the contact surfaces between the adjacent air bag die units in a centrosymmetric structure respectively; the mortise and tenon connecting pieces are of concave-convex structures and are respectively arranged on the adjacent wedge-shaped connecting pieces; the adjacent wedge-shaped connecting pieces are connected through gaskets and connecting bolts; when the air bag is manufactured, a plurality of
Bibliography:Application Number: CN202211581708