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公开(公告)号:US20180187744A1
公开(公告)日:2018-07-05
申请号:US15570805
申请日:2016-07-15
发明人: Yoshihiro TAKIKAWA , Hiroki NAGAI , Masaki WAJIMA , Takao SAKAMOTO , Takahiro RYU , Takashi NAKAE , Kenichiro MATSUZAKI
CPC分类号: F16F15/145 , F16D3/12 , F16F15/1471 , F16F15/31 , F16F2228/001 , F16F2232/02 , F16H2045/0226 , F16H2045/0263
摘要: A vibration damping device 20 includes: a crank member 22 that is coupled to a driven member 15 via a first coupling shaft A1 and that is swingable about the first coupling shaft A1 along with rotation of the driven member 15; and an inertial mass body 24 that is coupled to the driven member 15 via the crank member 22 and a connecting rod 23 and that is swung about a center of rotation RC in conjunction with the crank member 22 along with rotation of the driven member 15. A component force of a centrifugal force that acts on the crank member 22 along with rotation of the driven member 15 in a direction that is orthogonal to the direction from the center of the first coupling shaft A1 toward the center of gravity G always acts on the crank member 22 as a restoring force that acts to return the inertial mass body 24 to the center of the swing range. The component force is maximum when the inertial mass body 24 is positioned at the center of the swing range.
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公开(公告)号:US20190226552A1
公开(公告)日:2019-07-25
申请号:US16321554
申请日:2017-09-29
发明人: Yoichi OI , Masaki WAJIMA , Hiroki NAGAI , Takao SAKAMOTO , Takahiro RYU , Takashi NAKAE , Kenichiro MATSUZAKI
IPC分类号: F16F15/137 , F16F15/14 , F16H45/02
CPC分类号: F16F15/145 , F16F15/1202 , F16F15/13128 , F16F15/137 , F16F15/14 , F16F2228/001 , F16H45/02
摘要: In a vibration damping device 20, the moment of inertia J1 of a driven member 15, the moment of inertia J2 of an inertial mass body 23, the mass m of crank members 22, the distance L3 between the center of gravity G of the crank member 22 and the fulcrum of swinging of the crank member 22 with respect to the inertial mass body 23, and the distance L4 between this fulcrum and the center of rotation RC are determined so that torque fluctuation of an object for which vibration is to be damped, which is derived based on angular displacement and angles obtained by solving an equation of motion for the driven member 15 and an equation of motion for the entire vibration damping device 20 is equal to a target value.
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