发明授权
- 专利标题: High damping flexible propeller/impleller
- 专利标题(中): 高阻尼柔性螺旋桨/实体
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申请号: US498139申请日: 1990-03-23
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公开(公告)号: US5108262A公开(公告)日: 1992-04-28
- 发明人: Roger M. Crane
- 申请人: Roger M. Crane
- 申请人地址: DC Washington
- 专利权人: The United States of America as represented by the Secretary of the Navy
- 当前专利权人: The United States of America as represented by the Secretary of the Navy
- 当前专利权人地址: DC Washington
- 主分类号: B64C11/20
- IPC分类号: B64C11/20 ; F04D29/38 ; F04D29/66
摘要:
This invention is directed to a high damping and damage tolerant flexible opeller assembly and a method for the production thereof. The high damping and damage tolerant flexible propeller has a unitary hub having an axis of rotation and adapted for mounting on a rotatable shaft, multiple spokes extending from the hub portion, each spoke at its tip portion being made of a high density material having the shape that conforms to that of the specific propeller, each spoke at its inner portion from the tip portion to the hub portion being made of multidimensional fibers, the inner portion of each spoke being made of a multidimensional fiber preform being impregnated with a highly viscoelastic matrix material.
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