发明授权
- 专利标题: Rotorcraft vibration suppression system in a four corner pylon mount configuration
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申请号: US13736687申请日: 2013-01-08
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公开(公告)号: US09777788B2公开(公告)日: 2017-10-03
- 发明人: Taeoh Lee , David E. Heverly, II , Matthew W. Hendricks , Maurice Griffin , Michael R. Smith
- 申请人: BELL HELICOPTER TEXTRON INC.
- 申请人地址: US TX Fort Worth
- 专利权人: Bell Helicopter Textron Inc.
- 当前专利权人: Bell Helicopter Textron Inc.
- 当前专利权人地址: US TX Fort Worth
- 代理商 James E. Walton
- 主分类号: F16F7/00
- IPC分类号: F16F7/00 ; B64C27/00 ; F16F13/24
摘要:
The vibration suppression system includes a vibration isolator located in each corner in a four corner pylon mount structural assembly. The combination of four vibration isolators, two being forward of the transmission, and two being aft of the transmission, collectively are effective at isolating main rotor vertical shear, pitch moment, as well as roll moment induced vibrations. Each opposing pair of vibration isolators can efficiently react against the moment oscillations because the moment can be decomposed into two antagonistic vertical oscillations at each vibration isolator. A pylon structure extends between a pair of vibration isolators thereby allowing the vibration isolators to be spaced a away from a vibrating body to provide increased control.