Liquid rocket three-engine swing layout method and control method

Abstract

The invention relates to a liquid rocket three-engine swing layout method and a control method, three engines are arranged in the circumferential direction, the included angle between the connecting line of the center of the second engine and the center of the rocket and the connecting line of the center of the third engine and the center of the rocket is 130 degrees, and the included angle between the connecting line of the center of the first engine and the center of the rocket and the included angle between the connecting line of the center of the other two engines and the center of the rocket are both 110 degrees; the swinging direction of each engine is perpendicular to the connecting line of the engine and the center of the rocket. The three-engine parallel-connection layout is adopted, three-channel attitude control of pitching, yawing and rolling is achieved only through swinging of the three engines, a rocket control model is simplified, and control calculation is simpler. Compared with the layout of four engines, the structure and the control are simpler. Through the layout of different included angles between the connecting lines of the three engines and the central point, the maximum control torque under the layout of the three engines can be obtained, and flight attitude control is more facilitated.

Description

technical field [0001] The technical field of aircraft design of the present invention, in particular, relates to a liquid rocket three-engine swing layout method and control method. Background technique [0002] When the liquid rocket engine swings to achieve attitude control, the traditional method generally adopts a symmetrical layout, among which single-engine, double-engine, and four-engine parallel connections are the most common. The design and implementation of the rocket control system are relatively complicated, and it is hoped that the characteristics of the pitch and yaw channels will be consistent, so the layout of the three engines is not adopted. [0003] At present, there is no engineering realization of three-engine parallel swing to realize rocket attitude control. Contents of the invention [0004] In order to realize the layout and control of the three engines, the present invention provides a liquid rocket three-engine swing layout method and control ...

AI Technical Summary

Problems solved by technology

The design and implementation of the rocket control system are relatively complicated, and it is hoped that the characteristics of the pitch and yaw channels will be consistent, so the layout of the three engines is not adopted

[0003] At present, there is no engineering realization of three-engine parallel swing to achieve rocket attitude control

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