发明名称 |
VERFAHREN ZUR BILDUNG EINES AUFLAGEHOLMES FUER EIN AERODYNAMISCHES ROTORBLATT |
摘要 |
A simplified layup mandrel with no contour or twist is utilized by the method of this invention for forming the spar member of an aerodynamic rotor blade. A fiber glass tape is wrapped (laid-up) to a desired thickness onto the simplified mandrel to form a strap as the initial step. Because of the simple design of the mandrel, the laid-up strap when removed from the mandrel has a basic U-shaped configuration with straight extending legs having substantially parallel vertically oriented faces. This strap is then placed on a forming mandrel and contoured to the desired shape either by hand or by coining in a forming die. The contoured strap is then utilized in any of the various subassemblies or final assembly of the composite aerodynamic rotor blade. |
申请公布号 |
DE2738514(A1) |
申请公布日期 |
1978.03.02 |
申请号 |
DE19772738514 |
申请日期 |
1977.08.26 |
申请人 |
THE BOEING CO. |
发明人 |
P. BELKO,RAYMOND;FRANK,ED |
分类号 |
B64C3/18;B64C27/46;B64C27/473;(IPC1-7):B64C27/46 |
主分类号 |
B64C3/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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