Multiobjective optimization of a pressure maintaining ball valve structure based on RSM and NSGA-II
Abstract The structural design of the ball valve significantly impacts the maximum pressure-holding capability of pressure-retaining coring tools. In this study, the pressure-bearing structure of the ball valve was optimized, and a theoretical model for its pressure resistance was established. Throu...
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Nature Portfolio
2025-07-01
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| Online Access: | https://doi.org/10.1038/s41598-025-02158-w |
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| author | Pengyun Wen Suling Wang Jinbo Li Kangxing Dong Zhihui Ren Yanchun Li Ruyi Qu Tingting Li |
| author_facet | Pengyun Wen Suling Wang Jinbo Li Kangxing Dong Zhihui Ren Yanchun Li Ruyi Qu Tingting Li |
| author_sort | Pengyun Wen |
| collection | DOAJ |
| description | Abstract The structural design of the ball valve significantly impacts the maximum pressure-holding capability of pressure-retaining coring tools. In this study, the pressure-bearing structure of the ball valve was optimized, and a theoretical model for its pressure resistance was established. Through numerical simulation, the maximum von Mises stress $${\upsigma }_{{\max}}$$ and effective seal width S were established as evaluation indicators for the valve’s pressure retention performance. Based on a sensitivity analysis of the ball valve’s structural dimensions, three key design parameters were identified: the valve body inner diameter $${D}_{5}$$ , the sealing surface adjustment amount $${L}_{2}$$ , and the pressure surface adjustment amount $${L}_{6}$$ . Using response surface methodology (RSM) and central composite design (CCD), a regression model was developed to correlate $${D}_{5}$$ , $${L}_{2}$$ , and $${L}_{6}$$ with $${\upsigma }_{{\max}}$$ and S. The Non-dominated Sorting Genetic Algorithm II (NSGA-II) was then applied for multi-objective optimization, yielding optimal parameters: $${D}_{5}$$ = 60 mm, $${L}_{2}$$ = 37 mm, and $${L}_{6}$$ = 35 mm, the corresponding values of $${\upsigma }_{{\max}}$$ and S are 806.67 MPa and 11.02 mm, respectively. The optimized results were compared with numerical simulations, showing errors of 3.53% for $${\upsigma }_{{\max}}$$ and 6.9% for S, thereby validating the accuracy of the predictive model. Compared to the initial design, the optimized configuration reduced $${\upsigma }_{{\max}}$$ by 8.1% and increased S by 118.2%, significantly enhancing the pressure-bearing strength and sealing performance of the ball valve. This research proposes a novel approach to enhance the pressure-holding capacity of ball valves, providing certain theoretical guidance for improving the performance of pressure-retaining coring equipment. |
| format | Article |
| id | doaj-art-c2e1604d20d8405db4bd9459eb2d0667 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-c2e1604d20d8405db4bd9459eb2d06672025-08-20T04:01:25ZengNature PortfolioScientific Reports2045-23222025-07-0115112110.1038/s41598-025-02158-wMultiobjective optimization of a pressure maintaining ball valve structure based on RSM and NSGA-IIPengyun Wen0Suling Wang1Jinbo Li2Kangxing Dong3Zhihui Ren4Yanchun Li5Ruyi Qu6Tingting Li7School of Mechanics Science and Engineering, Northeast Petroleum UniversitySchool of Mechanics Science and Engineering, Northeast Petroleum UniversitySchool of Mechanics Science and Engineering, Northeast Petroleum UniversitySchool of Mechanics Science and Engineering, Northeast Petroleum UniversitySchool of Mechanics Science and Engineering, Northeast Petroleum UniversitySchool of Mechanics Science and Engineering, Northeast Petroleum UniversitySchool of Mechanics Science and Engineering, Northeast Petroleum UniversitySchool of Mechanics Science and Engineering, Northeast Petroleum UniversityAbstract The structural design of the ball valve significantly impacts the maximum pressure-holding capability of pressure-retaining coring tools. In this study, the pressure-bearing structure of the ball valve was optimized, and a theoretical model for its pressure resistance was established. Through numerical simulation, the maximum von Mises stress $${\upsigma }_{{\max}}$$ and effective seal width S were established as evaluation indicators for the valve’s pressure retention performance. Based on a sensitivity analysis of the ball valve’s structural dimensions, three key design parameters were identified: the valve body inner diameter $${D}_{5}$$ , the sealing surface adjustment amount $${L}_{2}$$ , and the pressure surface adjustment amount $${L}_{6}$$ . Using response surface methodology (RSM) and central composite design (CCD), a regression model was developed to correlate $${D}_{5}$$ , $${L}_{2}$$ , and $${L}_{6}$$ with $${\upsigma }_{{\max}}$$ and S. The Non-dominated Sorting Genetic Algorithm II (NSGA-II) was then applied for multi-objective optimization, yielding optimal parameters: $${D}_{5}$$ = 60 mm, $${L}_{2}$$ = 37 mm, and $${L}_{6}$$ = 35 mm, the corresponding values of $${\upsigma }_{{\max}}$$ and S are 806.67 MPa and 11.02 mm, respectively. The optimized results were compared with numerical simulations, showing errors of 3.53% for $${\upsigma }_{{\max}}$$ and 6.9% for S, thereby validating the accuracy of the predictive model. Compared to the initial design, the optimized configuration reduced $${\upsigma }_{{\max}}$$ by 8.1% and increased S by 118.2%, significantly enhancing the pressure-bearing strength and sealing performance of the ball valve. This research proposes a novel approach to enhance the pressure-holding capacity of ball valves, providing certain theoretical guidance for improving the performance of pressure-retaining coring equipment.https://doi.org/10.1038/s41598-025-02158-wPressure coringPressure retaining ball valvePressure preservationResponse surface methodGenetic algorithmStructural optimization |
| spellingShingle | Pengyun Wen Suling Wang Jinbo Li Kangxing Dong Zhihui Ren Yanchun Li Ruyi Qu Tingting Li Multiobjective optimization of a pressure maintaining ball valve structure based on RSM and NSGA-II Scientific Reports Pressure coring Pressure retaining ball valve Pressure preservation Response surface method Genetic algorithm Structural optimization |
| title | Multiobjective optimization of a pressure maintaining ball valve structure based on RSM and NSGA-II |
| title_full | Multiobjective optimization of a pressure maintaining ball valve structure based on RSM and NSGA-II |
| title_fullStr | Multiobjective optimization of a pressure maintaining ball valve structure based on RSM and NSGA-II |
| title_full_unstemmed | Multiobjective optimization of a pressure maintaining ball valve structure based on RSM and NSGA-II |
| title_short | Multiobjective optimization of a pressure maintaining ball valve structure based on RSM and NSGA-II |
| title_sort | multiobjective optimization of a pressure maintaining ball valve structure based on rsm and nsga ii |
| topic | Pressure coring Pressure retaining ball valve Pressure preservation Response surface method Genetic algorithm Structural optimization |
| url | https://doi.org/10.1038/s41598-025-02158-w |
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