A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
VISCOUS DAMPER
To provide a viscous damper which generates a damping force according to earthquake vibration exceeding assumption on design without deteriorating base isolation performance against earthquake vibration assumed in the normal design with a simple structure.SOLUTION: A viscous damper 10A includes: a cylinder 12 in which a working fluid V is enclosed; a piston rod 14 disposed on an axis of the cylinder 12; and a piston 16 connected to the piston rod 14. Multiple inner diameter parts having different inner diameters are provided on an inner peripheral surface 1202 of the cylinder 12. The multiple inner diameter parts has a large inner diameter part 30 and small inner diameter parts 32 each having an inner diameter smaller than that of the large inner diameter part 30. The large inner diameter part 30 is disposed at a center part in an axial direction of the cylinder 12, and the small inner diameter parts 32 are provided at both sides of the large inner diameter part 30. The large inner diameter part 30 and each small inner diameter part 32 located adjacent to each other in the axial direction of the cylinder 12 are connected by an inclined surface 34 which connects inner peripheral surfaces of these inner diameter parts.SELECTED DRAWING: Figure 2
【課題】簡易な構成により、通常の設計で想定する地震動に対する免震性能を低下させることなく、設計での想定を超える地震動に応じた減衰力を発揮させる。【解決手段】作動油Ｖが封入されたシリンダ１２と、シリンダ１２の軸心上に配置されたピストンロッド１４と、ピストンロッド１４に連結されたピストン１６とを備える粘性ダンパ１０Ａにおいて、シリンダ１２の内周面１２０２に内径が異なる複数の内径部が設けられている。複数の内径部は、大径内径部３０と、大径内径部３０より小さい内径の小径内径部３２とを有し、シリンダ１２の軸心方向の中央部に大径内径部３０が配置され、大径内径部３０の両側に小径内径部３２が設けられている。シリンダ１２の軸心方向において隣り合う大径内径部３０および小径内径部３２は、それら内径部の内周面を接続する傾斜面３４で接続されている。【選択図】図２
VISCOUS DAMPER
To provide a viscous damper which generates a damping force according to earthquake vibration exceeding assumption on design without deteriorating base isolation performance against earthquake vibration assumed in the normal design with a simple structure.SOLUTION: A viscous damper 10A includes: a cylinder 12 in which a working fluid V is enclosed; a piston rod 14 disposed on an axis of the cylinder 12; and a piston 16 connected to the piston rod 14. Multiple inner diameter parts having different inner diameters are provided on an inner peripheral surface 1202 of the cylinder 12. The multiple inner diameter parts has a large inner diameter part 30 and small inner diameter parts 32 each having an inner diameter smaller than that of the large inner diameter part 30. The large inner diameter part 30 is disposed at a center part in an axial direction of the cylinder 12, and the small inner diameter parts 32 are provided at both sides of the large inner diameter part 30. The large inner diameter part 30 and each small inner diameter part 32 located adjacent to each other in the axial direction of the cylinder 12 are connected by an inclined surface 34 which connects inner peripheral surfaces of these inner diameter parts.SELECTED DRAWING: Figure 2
【課題】簡易な構成により、通常の設計で想定する地震動に対する免震性能を低下させることなく、設計での想定を超える地震動に応じた減衰力を発揮させる。【解決手段】作動油Ｖが封入されたシリンダ１２と、シリンダ１２の軸心上に配置されたピストンロッド１４と、ピストンロッド１４に連結されたピストン１６とを備える粘性ダンパ１０Ａにおいて、シリンダ１２の内周面１２０２に内径が異なる複数の内径部が設けられている。複数の内径部は、大径内径部３０と、大径内径部３０より小さい内径の小径内径部３２とを有し、シリンダ１２の軸心方向の中央部に大径内径部３０が配置され、大径内径部３０の両側に小径内径部３２が設けられている。シリンダ１２の軸心方向において隣り合う大径内径部３０および小径内径部３２は、それら内径部の内周面を接続する傾斜面３４で接続されている。【選択図】図２
VISCOUS DAMPER
粘性ダンパ
TANAKA RYOICHI (author) / FENG DEMIN (author) / SASAKI YASUHITO (author)
2022-09-07
Patent
Electronic Resource
Japanese