Self-positioning damping cable damping device for above water platform

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.

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...

AI Technical Summary

Problems solved by technology

The water platform often encounters the fluctuation of the tide, the change of the water level of the river or lake, and the change is far greater than the adjustable stroke of the damper. Increasing the adjustable stroke of the damper is expensive, and it is basically impossible to meet the vibration reduction of the water platform. Require

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