A Servo Mechanism for Angle of Attack and Sideslip Angle Used in Free Jet Test of Solid Impulse Engine

Abstract

The invention provides an angle-of-attack sideslip angle servomechanism for a free jet test of a solid ramjet. The angle-of-attack sideslip angle servomechanism comprises a mounting platform, a sideslip system, an angle-of-attack system and a thrust measurement component. The sideslip system includes a slewing bearing, a sideslip angle platform, and a sideslip angle servo electric cylinder. The angle-of-attack system includes a support frame, an engine mounting platform, an angle-of-attack drive connecting rod, a rolling linear track, an angle-of-attack slide block, and an angle-of-attack servo electric cylinder. The thrust measurement component includes a front connecting block, an engine rear ring, a thrust sensor, a moving frame, and a rolling linear guide. The angle-of-attack sideslipangle servomechanism can study the angle-of-attack characteristics of a solid ramjet, can solve the problem of engine thrust measurement on the angle-of-attack adjustment mechanism in the free jet test, and the servo problem of the angle-of-attack sideslip angle of the solid ramjet.

Description

technical field [0001] The invention relates to the technical field of free jet test of solid rocket ramjet (hereinafter referred to as solid rocket ramjet), in particular to an angle of attack and sideslip angle servo mechanism for free jet test of solid rocket ramjet, Background technique [0002] The solid impulse engine is an air-breathing engine. The free jet test is an important test technology in the ground test. The solid impulse engine is installed in the equal Mach diamond area of ​​the free jet nozzle outlet, which can simulate the air captured by the solid impulse engine inlet. Ability. The injection system injects the test working medium of the jet nozzle and the combustion products of the solid impulse engine into the atmosphere, maintains the low-pressure environment of the test chamber, and simulates the state of the solid impulse engine when it is flying at high altitude. [0003] The solid impulse engine is mainly composed of an air inlet, a gas generator,...

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Problems solved by technology

[0012] At present, no public information has been found related to the field of free jet test. It can simultaneously realize the servo adjustment of the angle of attack and side slip angle of the solid impulse engine and the function of thrust measurement.

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