Five-degree-of-freedom full-aircraft drop test aircraft posture follow-up control device

Abstract

The invention belongs to the field of aerospace dynamics tests and relates to a five-degree-of-freedom full-aircraft drop test aircraft posture follow-up control device. The follow-up control device comprises pulleys, four force bearing uprights, tension ropes, sliding barrels and upright supports, the force bearing uprights are symmetrically arranged on two sides of a test aircraft in a front row and a rear row and fixed by the upright support, the pulleys are arranged at the tops of the force bearing uprights and the ground among the force bearing uprights, a movable sliding barrel is arranged in the middle of each force bearing upright, wings of the test aircraft are connected with the sliding barrels by the tension ropes through the pulleys on the ground and at the top ends of the force bearing uprights, and an undercarriage is directly connected with the sliding barrels on the force bearing uprights through the tension ropes horizontally. The five-degree-of-freedom full-aircraft drop test aircraft posture follow-up control device has the advantages of simple structure, high reliability, capability of realizing automatic tracking, easiness in adjusting and low manufacturing cost.

Description

technical field [0001] The invention belongs to the field of aerodynamics test, relates to the field of aircraft and helicopter whole machine drop shock test, aircraft structure crash test and test mechanical equipment, and is suitable for the attitude control of the free fall process of the tested aircraft and the attitude control of other mechanical falling bodies. Background technique [0002] The whole aircraft drop test and aircraft structure crash test are one of the important dynamic test items in the development of land-based and carrier-based aircraft and helicopters. This test is a one-time destructive test, which requires that the test aircraft body must move freely according to a certain attitude. Fall accurately onto the platform. Due to many factors such as the launch mechanism, aircraft weight balance, launch height, falling wind resistance, etc., it is difficult for the aircraft to maintain a certain attitude. If the aircraft is affected by the above conditio...

AI Technical Summary

Problems solved by technology

Due to many factors such as the launch mechanism, aircraft weight balance, launch height, falling wind resistance, etc., it is difficult for the aircraft to maintain a certain attitude. If the aircraft is affected by the above conditions and the environment during the landing process or after landing Movements such as overturning and pitching may lead to test failure and cause huge economic losses

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