Hybrid Modeling Method of SDR Interstage Valve Based on Mechanism and Data-Driven
Variable-throat adjustment is the most practical flow regulation method of solid ducted rocket ramjet (SDR). The high-fidelity mathematical model of the interstage valve is the basis for realizing high-precision gas flow and thrust regulation. In this paper, the complex effect of gas was divided int...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi Limited
2022-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/2410681 |
| _version_ | 1797984563442483200 |
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| author | Hongfu Wang Qinghua Zeng Xianhe Chen Zongyu Zhang Weide Liu |
| author_facet | Hongfu Wang Qinghua Zeng Xianhe Chen Zongyu Zhang Weide Liu |
| author_sort | Hongfu Wang |
| collection | DOAJ |
| description | Variable-throat adjustment is the most practical flow regulation method of solid ducted rocket ramjet (SDR). The high-fidelity mathematical model of the interstage valve is the basis for realizing high-precision gas flow and thrust regulation. In this paper, the complex effect of gas was divided into load and throat deformation effect. The load was mainly determined by the clearance, friction torque, and pneumatic torque that the valve was subjected to during operation. And the throat deformation was determined primarily by the deposition and ablation of the valve faced in the gas. Therefore, we could divide the valve model into three parts: the servo motor model, the load characteristic model, and the deformation model of the actual acting throat (referred to as the throat). Given, we have designed a cold-air experiment program, using cold air to equalize the valve load. Furthermore, we analyzed its mechanism of action and established the load model using the experimental data and neural network. Finally, the deformation mechanism of the throat was investigated, and simultaneously, the deformation model was shown based on the flight test data. Compared with the traditional interstage valve model, the model established in this paper is closer to the actual working conditions, which is helpful to carry out the more comprehensive and practical ground simulation. It has essential reference value for further realizing the precise regulation of gas flow. |
| first_indexed | 2024-04-11T07:04:35Z |
| format | Article |
| id | doaj.art-90cca5b8544148f289321d05b0b8fc80 |
| institution | Directory Open Access Journal |
| issn | 1687-5974 |
| language | English |
| last_indexed | 2024-04-11T07:04:35Z |
| publishDate | 2022-01-01 |
| publisher | Hindawi Limited |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj.art-90cca5b8544148f289321d05b0b8fc802022-12-22T04:38:27ZengHindawi LimitedInternational Journal of Aerospace Engineering1687-59742022-01-01202210.1155/2022/2410681Hybrid Modeling Method of SDR Interstage Valve Based on Mechanism and Data-DrivenHongfu Wang0Qinghua Zeng1Xianhe Chen2Zongyu Zhang3Weide Liu4College of Aeronautics and AstronauticsCollege of Aeronautics and AstronauticsCompany of Hongda Risheng Aerospace Power TechnologyCollege of Aeronautics and AstronauticsCollege of Aeronautics and AstronauticsVariable-throat adjustment is the most practical flow regulation method of solid ducted rocket ramjet (SDR). The high-fidelity mathematical model of the interstage valve is the basis for realizing high-precision gas flow and thrust regulation. In this paper, the complex effect of gas was divided into load and throat deformation effect. The load was mainly determined by the clearance, friction torque, and pneumatic torque that the valve was subjected to during operation. And the throat deformation was determined primarily by the deposition and ablation of the valve faced in the gas. Therefore, we could divide the valve model into three parts: the servo motor model, the load characteristic model, and the deformation model of the actual acting throat (referred to as the throat). Given, we have designed a cold-air experiment program, using cold air to equalize the valve load. Furthermore, we analyzed its mechanism of action and established the load model using the experimental data and neural network. Finally, the deformation mechanism of the throat was investigated, and simultaneously, the deformation model was shown based on the flight test data. Compared with the traditional interstage valve model, the model established in this paper is closer to the actual working conditions, which is helpful to carry out the more comprehensive and practical ground simulation. It has essential reference value for further realizing the precise regulation of gas flow.http://dx.doi.org/10.1155/2022/2410681 |
| spellingShingle | Hongfu Wang Qinghua Zeng Xianhe Chen Zongyu Zhang Weide Liu Hybrid Modeling Method of SDR Interstage Valve Based on Mechanism and Data-Driven International Journal of Aerospace Engineering |
| title | Hybrid Modeling Method of SDR Interstage Valve Based on Mechanism and Data-Driven |
| title_full | Hybrid Modeling Method of SDR Interstage Valve Based on Mechanism and Data-Driven |
| title_fullStr | Hybrid Modeling Method of SDR Interstage Valve Based on Mechanism and Data-Driven |
| title_full_unstemmed | Hybrid Modeling Method of SDR Interstage Valve Based on Mechanism and Data-Driven |
| title_short | Hybrid Modeling Method of SDR Interstage Valve Based on Mechanism and Data-Driven |
| title_sort | hybrid modeling method of sdr interstage valve based on mechanism and data driven |
| url | http://dx.doi.org/10.1155/2022/2410681 |
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