A damper includes a housing in which an opening is formed, a cap closing the opening of the housing, a movable member movably housed between the housing and the cap, and a gel-like attenuating medium filled in a movable area of the movable member inside the housing. The housing and the cap are physical objects, the attenuating medium is filled between the physical objects and the movable member, and the housing and the cap are formed by the same principal material.

The rotary inertial mass damper has a configuration in which the rotary shaft of the oil-pressure motor rotates due to oil pressure of operating oil that is extruded from an oil chamber through reciprocating movement of the piston rod, and viscosity resistance is produced in operating oil that circulates in the connection pipes.

The rotary inertial mass damper has a configuration in which the rotary shaft of the oil-pressure motor rotates due to oil pressure of operating oil that is extruded from an oil chamber through reciprocating movement of the piston rod, and viscosity resistance is produced in operating oil that circulates in the connection pipes.

A device for damping the movement of a movably mounted component comprises a braking device which has a driven damper surface that cooperates with a secured damper surface to enclose a gap in which a viscous damping medium is present that causes a braking force of the braking device when the driven damper surface is rotated with respect to the secured damper surface, the braking force depending on the rotational speed of the driven damper surface. The device also has an additional braking device and a coupling. In the closed state of the coupling, at least one additional damper surface of the additional braking device driven by the movement of the component about an axis of the auxiliary braking device is rotated relative to at least one secured additional damper surface about the axis of the additional braking device, the additional braking device exerting an additional braking force. In the opened state of the coupling, the additional braking device is inactive. The coupling is activated by the braking force exerted by the braking device.

A device for damping the movement of a movably mounted component comprises a braking device which has a driven damper surface that cooperates with a secured damper surface to enclose a gap in which a viscous damping medium is present that causes a braking force of the braking device when the driven damper surface is rotated with respect to the secured damper surface, the braking force depending on the rotational speed of the driven damper surface. The device also has an additional braking device and a coupling. In the closed state of the coupling, at least one additional damper surface of the additional braking device driven by the movement of the component about an axis of the auxiliary braking device is rotated relative to at least one secured additional damper surface about the axis of the additional braking device, the additional braking device exerting an additional braking force. In the opened state of the coupling, the additional braking device is inactive. The coupling is activated by the braking force exerted by the braking device.

A shear thickening fluid having a controlled stress response, in which various stress response characteristics, including, an onset stress, a boundary stress and a fractures stress, can be controlled. The stress response characteristics controlled by the controlled properties of the shear thickening fluid, including the viscosity of a fluid medium, the mechanical properties of the suspended particles and the mechanical properties of the fluid boundary.

A shear thickening fluid having a controlled stress response, in which various stress response characteristics, including, an onset stress, a boundary stress and a fractures stress, can be controlled. The stress response characteristics controlled by the controlled properties of the shear thickening fluid, including the viscosity of a fluid medium, the mechanical properties of the suspended particles and the mechanical properties of the fluid boundary.

A damper is provided which can more reliably prevent malfunction and breakdown and which enables efficiently performing repair and inspection operations. This damper, provided with a casing linked to a first object and a rotating part linked to a second object rotatably attached to the first object, damps rotation in either the direction closing or the direction opening the second object, and is provided with a sensor which detects prescribed change in the external environment in the damper or around the damper, and a control unit which externally communicates, over a communication network, information relating to the change in the external environment detected by the sensor, wherein the sensor is configured from at least one of: a rotation sensor for detecting the number of revolutions of the rotating part; a sound sensor for detecting sound during rotations of the rotating part; a temperature sensor for detecting temperature; and a torque sensor for detecting torque on the basis of friction during rotation of the rotating part.

A damper is provided which can more reliably prevent malfunction and breakdown and which enables efficiently performing repair and inspection operations. This damper, provided with a casing linked to a first object and a rotating part linked to a second object rotatably attached to the first object, damps rotation in either the direction closing or the direction opening the second object, and is provided with a sensor which detects prescribed change in the external environment in the damper or around the damper, and a control unit which externally communicates, over a communication network, information relating to the change in the external environment detected by the sensor, wherein the sensor is configured from at least one of: a rotation sensor for detecting the number of revolutions of the rotating part; a sound sensor for detecting sound during rotations of the rotating part; a temperature sensor for detecting temperature; and a torque sensor for detecting torque on the basis of friction during rotation of the rotating part.

A damper (10) includes a housing (11) and a rotor (16) combined with the housing (11) so as to be capable of rotating relative to the housing (11). The damper (10) includes an attenuating medium (90) filled in a rotation area inside the housing (11) wherein the rotor (16) rotates, and added with viscoelasticity by a viscoelasticity treatment; and an enclosure portion (80) provided outside the rotation area of the rotor (16), and communicating with the rotation area.