A large-deflection deformation reconstruction method for semi-flexible plate nozzle based on strain-moment relationship
To enhance the health detection capability of the semi-flexible plate nozzle in a supersonic wind tunnel, a large-deflection deformation reconstruction algorithm for a semi-flexible plate nozzle based on the strain-moment relationship is developed. The multi-jack semi-flexible plate nozzle in the su...
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| Format: | Article |
| Language: | zho |
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EDP Sciences
2022-12-01
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| Series: | Xibei Gongye Daxue Xuebao |
| Subjects: | |
| Online Access: | https://www.jnwpu.org/articles/jnwpu/full_html/2022/06/jnwpu2022406p1312/jnwpu2022406p1312.html |
| _version_ | 1797668995667591168 |
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| author | YU Chengguo ZHANG Zhili NIE Xuqing ZHANG Long |
| author_facet | YU Chengguo ZHANG Zhili NIE Xuqing ZHANG Long |
| author_sort | YU Chengguo |
| collection | DOAJ |
| description | To enhance the health detection capability of the semi-flexible plate nozzle in a supersonic wind tunnel, a large-deflection deformation reconstruction algorithm for a semi-flexible plate nozzle based on the strain-moment relationship is developed. The multi-jack semi-flexible plate nozzle in the supersonic wind tunnel is studied; its mechanical model of contour assembly is established. The differential equation of flexible plate contour curve is deduced, and the elliptic integral expression of the flexible plate deformation is given. Based on the deformation theory of a rectangular thin plate, the deformation reconstruction algorithm is modified, and its correction effect is simulated and analysed with the finite element method. The maximum deviation after correction is only 10.78% compared with that before correction. The 0.3 m semi-flexible plate nozzle is used as the experimental platform to carry out the experimental study. The experimental results show that under the 6 Mach number, the large-deflection deformation reconstruction results based on strain-moment relationship are in good agreement with the experimental results. The coordinate deviation of the nozzle throat position is about 6.12% compared with the structural deformation, thus verifying that the deformation reconstruction algorithm in this paper is effective and accurate. |
| first_indexed | 2024-03-11T20:37:42Z |
| format | Article |
| id | doaj.art-c7c709c23d7640f8b4d328a957030869 |
| institution | Directory Open Access Journal |
| issn | 1000-2758 2609-7125 |
| language | zho |
| last_indexed | 2024-03-11T20:37:42Z |
| publishDate | 2022-12-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Xibei Gongye Daxue Xuebao |
| spelling | doaj.art-c7c709c23d7640f8b4d328a9570308692023-10-02T05:54:36ZzhoEDP SciencesXibei Gongye Daxue Xuebao1000-27582609-71252022-12-014061312131910.1051/jnwpu/20224061312jnwpu2022406p1312A large-deflection deformation reconstruction method for semi-flexible plate nozzle based on strain-moment relationshipYU Chengguo0ZHANG Zhili1NIE Xuqing2ZHANG Long3College of Missile Engineering, Rocket Force University of EngineeringCollege of Missile Engineering, Rocket Force University of EngineeringFacility Design and Instrumentation Institute, China Aerodynamics Research and Development CenterFacility Design and Instrumentation Institute, China Aerodynamics Research and Development CenterTo enhance the health detection capability of the semi-flexible plate nozzle in a supersonic wind tunnel, a large-deflection deformation reconstruction algorithm for a semi-flexible plate nozzle based on the strain-moment relationship is developed. The multi-jack semi-flexible plate nozzle in the supersonic wind tunnel is studied; its mechanical model of contour assembly is established. The differential equation of flexible plate contour curve is deduced, and the elliptic integral expression of the flexible plate deformation is given. Based on the deformation theory of a rectangular thin plate, the deformation reconstruction algorithm is modified, and its correction effect is simulated and analysed with the finite element method. The maximum deviation after correction is only 10.78% compared with that before correction. The 0.3 m semi-flexible plate nozzle is used as the experimental platform to carry out the experimental study. The experimental results show that under the 6 Mach number, the large-deflection deformation reconstruction results based on strain-moment relationship are in good agreement with the experimental results. The coordinate deviation of the nozzle throat position is about 6.12% compared with the structural deformation, thus verifying that the deformation reconstruction algorithm in this paper is effective and accurate.https://www.jnwpu.org/articles/jnwpu/full_html/2022/06/jnwpu2022406p1312/jnwpu2022406p1312.html半柔壁喷管大挠度变形重构矩形薄板椭圆积分 |
| spellingShingle | YU Chengguo ZHANG Zhili NIE Xuqing ZHANG Long A large-deflection deformation reconstruction method for semi-flexible plate nozzle based on strain-moment relationship Xibei Gongye Daxue Xuebao 半柔壁喷管 大挠度 变形重构 矩形薄板 椭圆积分 |
| title | A large-deflection deformation reconstruction method for semi-flexible plate nozzle based on strain-moment relationship |
| title_full | A large-deflection deformation reconstruction method for semi-flexible plate nozzle based on strain-moment relationship |
| title_fullStr | A large-deflection deformation reconstruction method for semi-flexible plate nozzle based on strain-moment relationship |
| title_full_unstemmed | A large-deflection deformation reconstruction method for semi-flexible plate nozzle based on strain-moment relationship |
| title_short | A large-deflection deformation reconstruction method for semi-flexible plate nozzle based on strain-moment relationship |
| title_sort | large deflection deformation reconstruction method for semi flexible plate nozzle based on strain moment relationship |
| topic | 半柔壁喷管 大挠度 变形重构 矩形薄板 椭圆积分 |
| url | https://www.jnwpu.org/articles/jnwpu/full_html/2022/06/jnwpu2022406p1312/jnwpu2022406p1312.html |
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