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Optimization Design of Impact Dampers and Particle Dampers
2020Regarding the design of particle impact dampers, there are many design parameters affecting their damping performance, such as the mass ratio of the PID to the primary structure, number, size, and material of the particles, restitution and friction coefficients of the particles, gap clearance, and filling ratio (volume fraction).
Zheng Lu, Sami F. Masri, Xilin Lu
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Earthquake engineering & structural dynamics (Print), 2020
This paper presents an experimental study on the performance of a shear‐sliding stud‐type damper composed of multiple friction units with high‐tension bolts and disc springs.
T. Sano, K. Shirai, Y. Suzui, Y. Utsumi
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This paper presents an experimental study on the performance of a shear‐sliding stud‐type damper composed of multiple friction units with high‐tension bolts and disc springs.
T. Sano, K. Shirai, Y. Suzui, Y. Utsumi
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Investigation of a colloidal damper
Journal of Colloid and Interface Science, 2003A novel application of nanotechnology in the field of mechanical engineering, called colloidal damper (CD), is investigated. This device is complementary to the hydraulic damper (HD), having a cylinder-piston construction. Particularly for CD, the hydraulic oil is replaced by a colloidal suspension, which consists of a mesoporous matrix and a lyophobic
Takuzo Iwatsubo +2 more
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Smart materials and structures (Print), 2020
In this paper, a novel magnetorheological (MR) damper working in the squeeze-valve bi-mode of MR fluid (MRF) was developed. The damper was consisted of two parts: the valve part and the squeeze part.
Xiaohui Ruan +4 more
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In this paper, a novel magnetorheological (MR) damper working in the squeeze-valve bi-mode of MR fluid (MRF) was developed. The damper was consisted of two parts: the valve part and the squeeze part.
Xiaohui Ruan +4 more
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European Transactions on Electrical Power, 1998
AbstractThe central point of the following treatise is the investigation of the reaction mechanism of the single bars and rings of a damper cage when it is hit by the normal component of an alternating field. The reacting field of the cage is calculated by Ampere's law.
M. Hyrenbach +2 more
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AbstractThe central point of the following treatise is the investigation of the reaction mechanism of the single bars and rings of a damper cage when it is hit by the normal component of an alternating field. The reacting field of the cage is calculated by Ampere's law.
M. Hyrenbach +2 more
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The Journal of the Acoustical Society of America, 2003
A vibration restraining apparatus for vehicle of the present invention is comprised of a housing formed by a rigid material and having an inner space, and fixed to a vibration transmitting member; a filled member sealed in the inner space of said housing in a non-adhered state with leaving a gap with respect to a vibrating direction of said housing ...
Shigemitsu Hattori +5 more
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A vibration restraining apparatus for vehicle of the present invention is comprised of a housing formed by a rigid material and having an inner space, and fixed to a vibration transmitting member; a filled member sealed in the inner space of said housing in a non-adhered state with leaving a gap with respect to a vibrating direction of said housing ...
Shigemitsu Hattori +5 more
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, 1991 A Frahm damper is a device which attenuates the vibrations of a mechanical system over a specified range of frequencies. It consists of an oscillating system, known as the auxiliary system, whether dissipative or not, which is attached to the main system, augmenting in this way the number of degrees of freedom and therefore the number of resonances of ...
P. Pahud, M. Del Pedro
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Journal of Bridge Engineering, 2021
Abstract Due to the superior performance of negative stiffness damper (NSD), its application to the vibration control of bridge stay cables attracts much research attention in recent years.
Qimian Dong, Shaohong Cheng
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Abstract Due to the superior performance of negative stiffness damper (NSD), its application to the vibration control of bridge stay cables attracts much research attention in recent years.
Qimian Dong, Shaohong Cheng
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An Adaptive Active Damper for Improving the Stability of Grid-Connected Inverters Under Weak Grid
IEEE transactions on power electronics, 2018When a grid-connected inverter is connected to a weak grid, the system may be unstable. An active damper can be connected to the point of common coupling (PCC), which simulates a virtual resistor to dampen the resonance and thus stabilize the system.
L. Jia +4 more
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Motion of a spacecraft with magnetic damper [PDF]
Journal of Guidance, Control, and Dynamics, 1992 Two methods of numerically simulating motion of a spacecraft are compared. The former approach involves integrating a system of nonlinear differential equations, the latter is based on the assumption that the resultant moment is zero. Illustrative examples are given to show the efficiency of the methods, and some additional approaches to the problem ...
Anren Hu +2 more
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