Orbit injection method of two-stage-to-orbit spacecraft with reusable first-stage energy

Abstract

The invention discloses an orbit injection method of a two-stage-to-orbit spacecraft with reusable first-stage energy, comprising the steps of 1, modeling the two-stage-to-orbit spacecraft, wherein the first stage is a skylon using an SABRE engine as a power unit, and the second stage is a small rocket having effective payload that accounts for 5.89% of takeoff total mass; 2, carrying out a first-stage takeoff phase; 3, carrying out a first-stage suction mode phase that allows climbing to 25 km in suction mode; 4, carrying out a first-stage rocket mode phase, wherein the SABRE engine switchesto the rocket mode and propels the two-stage-to-orbit spacecraft to continuously climb to 100 km, separating the first stage and the second stage, and allowing the first stage to return to the groundfor use in an unpowered glide mode; 5, carrying a second-stage vertical climbing in the two-stage climbing phase, and delivering the effective payload to a low-earth orbit of 300 km at the speed of 7700 m/s. With the technical difficult and launching cost comprehensively considered, two-stage-to-orbit is achieved based on the SABRE engine, while the first-stage energy is reusable; the effective payload is significantly increased.

Description

technical field [0001] The invention relates to the technical field of orbiting a spacecraft, in particular to an orbiting method for a first-stage reusable two-stage orbiting spacecraft. Background technique [0002] The Synergetic Air-Breathing Rocket Engine (SABRE) proposed by Reaction Engine Ltd (REL) is a precooling combined cycle engine that uses a low-temperature medium to cool the incoming air. , rocket engine and ramjet organic combination. Combining the advantages of high thrust-to-weight ratio of rocket engine, wide working range and high specific impulse of turbine engine, it has two working modes of air-breathing and rocket, and is expected to become a new type of power plant for single-stage / multi-stage orbital and reusable aerospace aircraft . [0003] Single-stage orbit entry can greatly reduce launch costs, but it is more difficult to achieve. The main reason is that a large amount of structural mass is brought into space, and the requirements for structur...

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Problems solved by technology

[0003] Single-stage orbit entry can greatly reduce launch costs, but it is difficult to achieve, the main reason is that a large amount of structural mass is brought into space, and the requirements for stru

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