Vertically adjustable FM mass damper
A frequency modulation mass damping and adjustable technology, applied in the direction of shock absorbers, shock absorbers, springs/shock absorbers, etc., can solve the problems of complex adjustment, unadjustable frequency and damping of frequency modulation mass dampers, attenuation of vibration response, etc. , to achieve the effect of wide adjustment range, simple structure and strong adaptive ability
Active Publication Date: 2017-09-29
WUXI FUYO TECH
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the above disadvantages, thereby providing a vertically adjustable frequency modulation mass damper, which can attenuate and control the vibration response of the main structure; at the same time, solve the problem that the frequency and damping of the frequency modulation mass damper cannot be adjusted The complex and difficult problem of adjustment makes the damping system fully play its role, and the vibration reduction effect is remarkable
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[0014] The present invention will be further described below in conjunction with the embodiments in the drawings:
[0015] Such as Figure 1~2 As shown, the present invention mainly includes an upper support 1, a lower support 2 and a mass 4, the upper support 1 and the lower support 2 are rotatably connected by vertical seat bearings 3 on both sides of the rear. The upper bracket 1 and the middle of the lower bracket 2 are connected by a viscous damper 8 through which the required damping value can be adjusted.
[0016] The upper bracket 1 and the lower bracket 2 are provided with a gear sleeve rod assembly and a second gear sleeve rod assembly at the front of both sides, and a spring 9 is sleeved on the first gear sleeve rod assembly or the second gear sleeve rod assembly according to the needs of use.
[0017] The one-speed sleeve rod assembly includes a first-speed upper sleeve rod 10a and a first-speed lower sleeve rod 10b which are arranged up and down correspondingly. The upp...
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The invention relates to a frequency modulation mass damper, in particular to a vertically adjustable frequency modulation mass damper, belonging to the technical field of frequency modulation mass dampers. It includes an upper bracket, a lower bracket and a quality block, and the middle parts of both sides of the upper bracket and the lower bracket are connected by a viscous damper. The front part of both sides of the upper bracket and the lower bracket is provided with a first-speed sleeve rod assembly and a second-speed sleeve rod assembly, and springs are set on the first-speed sleeve rod assembly or the second-speed sleeve rod assembly; there are guide rails on the left and right sides of the upper end of the upper bracket. The mass block is slidably connected, the rear end of the mass block is connected with an adjusting screw, and the adjusting screw is connected with a screw nut fixed at the rear of the upper bracket. The mass block of the present invention uses a screw rod to adjust the distance to adjust the mass distribution, the spring system part adopts a double-speed adjustable structure, and the viscous damper adjusts the required damping value by adjusting the height of the insert plate; the suspension type can be selected according to the site conditions There are two installation methods of support and support, with strong self-adaptability and easy installation.
Description
Technical field [0001] The invention relates to a frequency modulation mass damper, in particular to a vertically adjustable frequency modulation mass damper, belonging to the technical field of frequency modulation mass dampers. Background technique [0002] Tuned Mass Damper (TMD) system is a type of structure passive vibration reduction control system, which consists of a main structure and a tuned mass damper attached to the main structure. Among them, the FM mass damper includes solid mass, spring shock absorber and damper. It has mass, stiffness and damping. By changing the mass or stiffness, adjust the natural frequency of the FM mass damper to make it as close to the basic frequency of the main structure as possible. Or the excitation frequency. When the main structure is excited and vibrates, the FM mass damper will generate an inertial force opposite to the vibration direction of the structure to act on the structure, so that the vibration response of the main structure...
Claims
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IPC IPC(8): F16F13/00
Inventor 王惠强王豫顾钦钦
Owner WUXI FUYO TECH