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| Research on Digital Prototype Technology of Solid Rocket Divert and Attitude Control Motor |
| ZHANG Weihua1， WANG Donghui1， ZHOU Zhitan2， LI Yiqing2 |
| 1. College of Aerospace Science and Engineering， National University of Defense Technology， Changsha 410073， Hunan， China； 2. School of Aircraft Engineering， Nanchang Hangkong University， Nanchang 330063， Jiangxi， China |
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Abstract Focus on the digital research and development needs of the solid attitude orbit control engine, the application of digital prototype technology in the solid attitude orbit control engine needs to be improved. In this study, the geometric modelling method of a solid attitude orbit control engine utilizing knowledge rules was constructed. The high-precision simulation model of the internal flow field of the solid attitude orbit control engine based on the SST k-ω turbulence model was established, and the uncertainty analysis method of the performance of the solid attitude orbit control engine was proposed. The research on the integration and validation method of the multilevel digital model of solid attitude orbit control engine was conducted. The results show that the pressure and thrust steady state performance deviation of the constructed digital prototype of a solid attitude-orbit control engine is respectively 4% and 3.6%, and the pressure and thrust performance deviation of the digital prototype during the continuous thrust adjustment process is respectively 4.98% and 6% indicating a high-performance prediction accuracy. Besides, the research results can be applied in the overall design of the engine program and the program performance rapid assessment, which can promote the development of China's solid attitude-orbit control engine and its performance. The research results can also be applied to the rapid evaluation of the performance of the program, which can promote the change of the R&D mode of the domestic solid attitude-orbit control engine, powering the innovative development of the solid engine design technology, driving the overall strength of the solid engine industry, and building the technical foundation for the development of intelligent solid engine technology in the future.
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Received: 10 July 2024
Published: 23 November 2024
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2024, Vol. 7 
