Vibration damper of swing blade gust generator

Abstract

The invention provides a vibration damper of a swing blade gust generator. The vibration damper comprises a constant pressure valve, an exhaust pipe, an intake pipe, an intermediate inflatable soft board, an upper partition plate, a lower partition plate and two groups of compression springs, wherein a radial displacement gap is formed between a rotating shaft of a swinging blade and a bearing; the upper partition plate and the lower partition plate are positioned in the radial displacement gap; the intermediate inflatable soft plate is mounted between the upper partition plate and the lower partition plate; the two groups of compression springs are further located between the upper partition plate and the lower partition plate and located on the two sides of the intermediate inflation soft plate; the exhaust pipe and the intake pipe are connected with the intermediate inflation soft plate; and the constant pressure valve sets a pressure value according to the swing frequency and angleworking conditions of the swing blade and controls the air pressure in the intermediate inflation soft plate. According to the vibration damper, the bearing clearance of the rotating shaft of the gust generator can be suppressed according to the operating frequency and the operating angle of the swing blade gust generator, the vibration amplitude of the swing blade gust generator during working is effectively reduced, and the working efficiency of the swing blade gust generator is improved.

Description

technical field [0001] The invention belongs to the field of vibration reduction of a gust generator, in particular to a vibration reduction device of a swing blade gust generator. Background technique [0002] With the advancement of aviation technology, the demand for gust loads and gust load mitigation wind tunnel tests on civil airliners is becoming more and more important. Through the gust test in the wind tunnel, important test parameters can be provided for the design of the flight control rate of civil airliners, and the gust load mitigation technology can be tested and verified to improve the flight safety and comfort of civil airliners under gust conditions. [0003] The swing blade gust generator is the core equipment to realize the wind tunnel gust simulation. It can realize the simulation of sinusoidal gust and random gust through the reciprocating swing of the swing blade in the wind tunnel. The swing blade gust generator is coupled with the air flow to transmi...

AI Technical Summary

Problems solved by technology

Vibration will affect the working state of the gust generator, causing a large deviation between the actual working frequency and the set frequency of the gust generator, and it is also easy to cause the gust generator to resonate, affecting the safe use of the equipment

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