Self-positioning damping cable damping device for above water platform

A technology for water platforms and vibration reduction devices, which is applied in water conservancy projects, underwater structures, non-rotational vibration suppression, etc., and can solve the problems of impossibility to meet the vibration reduction requirements of water platforms, high cost, and increasing the adjustable stroke of dampers, etc. question

CN107269760AInactive Publication Date: 2017-10-20HUNAN UNIV OF SCI & TECH
8 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2017-10-20
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a self-positioning damping cable damping device for an above water platform. The self-positioning damping cable damping device comprises a damping cable and a self-positioning unit. The damping cable comprises a mass block statically placed at the water bottom, the mass block is connected with a suspension lower cross beam through a sling, and the lower cross beam is connected with an upper cross beam through a damper and a reset spring which are arranged in parallel; the self-positioning unit comprises a steel wire rope connected with the upper cross beam, the upper end of the steel wire rope winds on a winch, the left end of the winch is installed on the above water platform through a bearing, and a winch shaft at the left end is provided with a rotation spring; the right end of the winch is connected with a drive gear shaft of a gear pump through a connector, and the steel wire rope is tensioned by the winch shaft under the effect of the rotary spring; and a driving gear and a driven gear which are located on the driving sear shaft are engaged, and the gear pump, the driving gear and the driven gear are solidified on the above water platform. According to the self-positioning damping cable damping device, automatic adjusting of the length of the damping cable during tidewater rising and falling and damping energy consumption during vibration of the above water platform are achieved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of water vibration reduction, in particular to a self-adjusting damping cable vibration reduction device for water platforms. Background technique

[0002] Offshore wind power generation, oil drilling and other offshore operations require large water platforms, and the construction of bridges in large rivers and lakes also requires large water platforms. The floating platform floats on the water surface. Under the action of wind, waves and construction equipment on the platform, a large amount of vibration may occur, which will affect the life safety and health of the construction personnel, and at the same time affect the safe operation of the equipment or cause damage to the equipment. The vibration reduction of existing water platforms mainly includes damping plate vibration reduction and frequency modulation mass damper (TMD) vibration reduction, such as figure 1 shown.

[0003] The damping plate is co...

Examples

Embodiment Construction

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] see figure 2 , the self-adjusting damping cable vibration reduction device for the water platform in the embodiment of the present invention includes a damping cable and a self-adjusting device; the damping cable includes a mass block 1 placed statically on the bottom of the water, and the mass block 1 is connected with a suspended lower part through a sling 2 Beam 3, among them, the sling is generally made of carbon fiber, glass fiber or basalt fiber and other high-strength, large elastic modulus, seawater corrosion-resistant materials, and can also be made of metal or other non-metallic materials after anti-corrosion treatment; The beam 3 is connected to the beam 6 through the damper 4 and the return spring 5 installed in parallel. The self-adjusting device includes a wire rope 7 connected to the upper beam 6, the upper end of the wire rope 7 i...