LIGHTWEIGHT OPTIMIZATION DESIGN OF BODY-IN-WHITE BASED ON NSGA-II MIXED SENSITIVITY ANALYSIS
With the problem of lightweight for body-in-white, a parametric optimization method based on mixed sensitivity analysis was proposed. The bending stiffness and modal properties of body-in-white were calibrated through the finite element simulation. Then the model was used to do mixed sensitivity ana...
| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Strength
2019-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.04.020 |
| _version_ | 1797767769207341056 |
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| author | ZHAO ShuEn YANG MingSen PENG GuangXu |
| author_facet | ZHAO ShuEn YANG MingSen PENG GuangXu |
| author_sort | ZHAO ShuEn |
| collection | DOAJ |
| description | With the problem of lightweight for body-in-white, a parametric optimization method based on mixed sensitivity analysis was proposed. The bending stiffness and modal properties of body-in-white were calibrated through the finite element simulation. Then the model was used to do mixed sensitivity analysis about stiffness and modal by experiment design, and related parts that have little influence on stiffness and modal properties were screened out. Takes thickness of related parts as design variables, the body-in-white quality and bending and torsion stiffness as the optimization targets, modal properties as constraint. The body-in-white lightweight of multi-objective optimization design was carried out by NSGA-II. Then simulate calculation was carried out by Isight to optimize the thickness of those parts, so as to realize the lightweight optimization design of the body-in-white structure. The simulation results show that its stiffness and modal performance were guaranteed after the parametric optimization, and the weight of the body-in-white was reduced by 5.7% of the original structure. |
| first_indexed | 2024-03-12T20:44:41Z |
| format | Article |
| id | doaj.art-fb2664644473469e94d7e9963ac6e8bb |
| institution | Directory Open Access Journal |
| issn | 1001-9669 |
| language | zho |
| last_indexed | 2024-03-12T20:44:41Z |
| publishDate | 2019-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj.art-fb2664644473469e94d7e9963ac6e8bb2023-08-01T07:49:36ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692019-01-014188789430605290LIGHTWEIGHT OPTIMIZATION DESIGN OF BODY-IN-WHITE BASED ON NSGA-II MIXED SENSITIVITY ANALYSISZHAO ShuEnYANG MingSenPENG GuangXuWith the problem of lightweight for body-in-white, a parametric optimization method based on mixed sensitivity analysis was proposed. The bending stiffness and modal properties of body-in-white were calibrated through the finite element simulation. Then the model was used to do mixed sensitivity analysis about stiffness and modal by experiment design, and related parts that have little influence on stiffness and modal properties were screened out. Takes thickness of related parts as design variables, the body-in-white quality and bending and torsion stiffness as the optimization targets, modal properties as constraint. The body-in-white lightweight of multi-objective optimization design was carried out by NSGA-II. Then simulate calculation was carried out by Isight to optimize the thickness of those parts, so as to realize the lightweight optimization design of the body-in-white structure. The simulation results show that its stiffness and modal performance were guaranteed after the parametric optimization, and the weight of the body-in-white was reduced by 5.7% of the original structure.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.04.020Body-in-white;Lightweight design;Mixed sensitivity;Multi-objective optimization |
| spellingShingle | ZHAO ShuEn YANG MingSen PENG GuangXu LIGHTWEIGHT OPTIMIZATION DESIGN OF BODY-IN-WHITE BASED ON NSGA-II MIXED SENSITIVITY ANALYSIS Jixie qiangdu Body-in-white;Lightweight design;Mixed sensitivity;Multi-objective optimization |
| title | LIGHTWEIGHT OPTIMIZATION DESIGN OF BODY-IN-WHITE BASED ON NSGA-II MIXED SENSITIVITY ANALYSIS |
| title_full | LIGHTWEIGHT OPTIMIZATION DESIGN OF BODY-IN-WHITE BASED ON NSGA-II MIXED SENSITIVITY ANALYSIS |
| title_fullStr | LIGHTWEIGHT OPTIMIZATION DESIGN OF BODY-IN-WHITE BASED ON NSGA-II MIXED SENSITIVITY ANALYSIS |
| title_full_unstemmed | LIGHTWEIGHT OPTIMIZATION DESIGN OF BODY-IN-WHITE BASED ON NSGA-II MIXED SENSITIVITY ANALYSIS |
| title_short | LIGHTWEIGHT OPTIMIZATION DESIGN OF BODY-IN-WHITE BASED ON NSGA-II MIXED SENSITIVITY ANALYSIS |
| title_sort | lightweight optimization design of body in white based on nsga ii mixed sensitivity analysis |
| topic | Body-in-white;Lightweight design;Mixed sensitivity;Multi-objective optimization |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.04.020 |
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