RLV virtual simulation platform design and implementation method

Abstract

The invention relates to real-time numerical simulation, network communication, computer programming and visual display. In order to provide a virtual simulation platform integrating real-time simulation, data monitoring, data storage, visual display and performance evaluation, the virtual simulation platform is used for verifying feasibility, applicability and effectiveness of an RLV reentry three-dimensional real-time trajectory optimization and tracking method and a robust adaptive strategy. The invention, RLV virtual simulation platform design and implementation method, designs the Simulink model and the control algorithm of the reusable carrier RLV on the computer, forms the Simulink model library and the control method library, and the control method library includes the super spiralsliding mode, the terminal and the adaptive dynamic programming control algorithm to compile the Simulink model into C code that can be run in the dSPACE simulator and download it to the dSPACE simulator through a computer. The invention is mainly applied to RLV simulation occasions.

Description

technical field [0001] The invention relates to the fields of real-time numerical simulation, network communication, computer programming, visual display and the like, in particular to a dSPACE-based RLV virtual simulation platform. Background technique [0002] A reusable launch vehicle (RLV, Reusable Launch Vehicle) can freely travel between the earth and space orbit to perform load delivery tasks, and can be reused many times. It is an indispensable weapon reserve for future space offensive and defensive confrontations and comprehensive seizure of space dominance. , is the only way to reduce the cost of space round-trip transportation and increase the carrying capacity and launch frequency. It is the strategic commanding height of today's aerospace technology and the focus of the world's military powers. It is also a difficult and hot issue in scientific research. [0003] In the field of RLV research, simulation technology plays an important role. Compared with physical ...

AI Technical Summary

Problems solved by technology

Commonly used development tools for visual simulation include low-level graphics libraries, integrated visual software, open source graphics engines, and 3D game engines. Low-level graphics libraries such as OpenGL (Open Graphics Library, Open Graphics Library) have a wide range of applications, but the development of large-scale complex visualization systems The development is difficult, the development cycle is long, and a large amount of source code programming is required; therefore, some companies have developed convenient integrated visual software based on the underlying graphics library, such as Multigen-creator (a real-time 3D model for visual simulation. software package), which can generate large-area real-time scenes for simulation, but integrated visual software usually has relatively fixed functions, and the source code is not open source, and lacks scalability; Flexible features, such as OGRE (Object-Oriented Graphics Rendering Engine, Object-Oriented Graphics Rendering Engine), but the development based on an open source graphics engine requires developers to understand the basic structure of the graphics engine and master the engine's API (Application Programming Interface, application programming interface) and high-level language, which requires a high development threshold; 3D game engine is the final product of the continuous development of 3D technology, which provides a complete set of solutions for visual development and solves complex problems in visual development, such as Unity3D (Denmark 3D game engine developed by Unity Technologies), is the best choice for visual development

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