公开(公告)号：WO2017209827A3

公开(公告)日：2017-12-07

申请号：PCT/US2017/022380

申请日：2017-03-14

Applicant: BELL HELICOPTER TEXTRON INC.

Inventor： CHOI, Jouyoung, Jason ,  HEVERLY, David ,  KIZHAKKEPAT, Amarjit, O. ,  PARHAM, Thomas ,  SEIFERT, Michael ,  SMITH, Michael ,  STAMPS, Frank, B. ,  GAY, Frederick, S.

IPC: B64C27/00 ,  B06B1/16 ,  B64C27/32 ,  B64C27/51 ,  F16F15/10

Abstract: A vibration attenuation system for attenuating vibrations in a mast of an aircraft includes a weight attached to the mast but free to orbit about the mast. The weight can be comprised of one or more weight assemblies. Embodiments can include a single weight, or plural weight assemblies wherein each weight assembly can include a mechanical interconnecting mechanism so that each weight assembly receives feedback regarding the position and movement of one or more other weight assemblies. Each weight can be associated with a spring that urges the weight towards a neutral position. Rotation of the mast can cause the weight to orbit about the mast and self-excite such that the weight acts against the urging of the spring towards an attenuating position.

公开(公告)号：WO2017209827A2

公开(公告)日：2017-12-07

申请号：PCT/US2017/022380

申请日：2017-03-14

Applicant: BELL HELICOPTER TEXTRON INC.

Inventor： CHOI, Jouyoung, Jason ,  HEVERLY, David ,  KIZHAKKEPAT, Amarjit, O. ,  PARHAM, Thomas ,  SEIFERT, Michael ,  SMITH, Michael ,  STAMPS, Frank, B. ,  GAY, Frederick, S.

IPC: B64C27/00

Abstract: A vibration attenuation system for attenuating vibrations in a mast of an aircraft includes a weight attached to the mast but free to orbit about the mast. The weight can be comprised of one or more weight assemblies. Embodiments can include a single weight, or plural weight assemblies wherein each weight assembly can include a mechanical interconnecting mechanism so that each weight assembly receives feedback regarding the position and movement of one or more other weight assemblies. Each weight can be associated with a spring that urges the weight towards a neutral position. Rotation of the mast can cause the weight to orbit about the mast and self-excite such that the weight acts against the urging of the spring towards an attenuating position.

Abstract translation: 用于衰减飞机的桅杆中的振动的减振系统包括附接到桅杆但可围绕桅杆自由绕轨道运动的重物。 重量可以由一个或多个重量组件组成。 实施例可以包括单个重量或多个重量组件，其中每个重量组件可以包括机械互连机构，使得每个重量组件接收关于一个或多个其他重量组件的位置和移动的反馈。 每个重量都可以与一个弹簧联系起来，这个弹簧将重量推向中立位置。 桅杆的转动可能导致重物在桅杆上绕轨道运动并自行激励，使得重物抵抗弹簧朝向衰减位置的推动而起作用。