Arresting hook dynamic fatigue test device and test method

Abstract

The invention provides an arresting hook dynamic fatigue testing device and testing method, belonging to a testing device and a testing method and particularly relating to the technical field of fatigue service life detection after an arresting hook is subjected to impact loading when a carrier plane lands on a ship. The testing device includes a testing stand system composed of a stand (3), a column (2), a lifting motor (1), and a hanging basket (4), and further includes a buffer system composed of a buffer (5) and a buffer base (6), a bump testing system composed of an arresting hook system L and a bump table P, a cable bumping testing system composed of a bump table P, a shaft sleeve (11), and an arresting cable (12), and a dynamic loading system composed of a support stand (17), an actuating cylinder (18), a lever (19), and an extension rod (20). The arresting hook dynamic fatigue testing device and testing method realize the stimulation of load-bearing conditions of deck bumping of the arresting hook, cable humping impact, and arresting force dynamic loading, perform multi-time repeated tests, and predict the fatigue service life of the arresting hook.

Description

technical field [0001] The invention belongs to a test device and a test method, and particularly relates to the technical field applicable to the fatigue life prediction of an arresting hook subjected to an impact load when a carrier-borne aircraft lands. technical background [0002] The arresting hook is a significant difference between carrier-based aircraft and land-based aircraft. Its main function is to hook the aircraft carrier’s arresting cable after the aircraft enters the field smoothly, transfer the arresting force to the fuselage, and force the aircraft to slow down. Usually, when a carrier-based aircraft lands, the arresting hook first collides with the deck, and bounces at a limited height under the action of the longitudinal damper of the arresting hook. The arresting wire is engaged, the arresting wire system and the arresting aircraft start to work, stopping the aircraft within a limited distance. [0003] The arresting hook is the only part connecting the...

AI Technical Summary

Problems solved by technology

[0007] Purpose of the present invention: for carrier-based aircraft, under the situation that the shipboard test and land-based test are difficult, a set of arresting hook dynamic fatigue test device is designed, which effectively solves the problem of the fatigue life of the arresting hook during the landing process of carrier-based aircraft. problem of prediction

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