Constraint adjustment and computational resource allocation strategies for decomposition-based large-scale optimization of ship cabin structures
ObjectiveTo enhance the application effectiveness of the decomposition-based optimization method in the large-scale optimization design of ship cabin structures, a constraint progressive relaxation adjustment strategy and a computational resource allocation strategy are proposed that consider both t...
Gespeichert in:
| Veröffentlicht in: | Zhongguo Jianchuan Yanjiu Jg. 20; H. 4; S. 134 - 142 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Journal Article |
| Sprache: | Chinesisch Englisch |
| Veröffentlicht: |
Editorial Office of Chinese Journal of Ship Research
01.08.2025
|
| Schlagworte: | |
| ISSN: | 1673-3185 |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Abstract | ObjectiveTo enhance the application effectiveness of the decomposition-based optimization method in the large-scale optimization design of ship cabin structures, a constraint progressive relaxation adjustment strategy and a computational resource allocation strategy are proposed that consider both the contribution of the sub-problem to the objective and the margin of constraints of the sub-problem. MethodsConstraint progressive relaxation adjustment strategy: initially, a tightened constraint boundary is given and then gradually relaxed until it recovers to the original constraint boundary, enabling all sub-problems to be more fully optimized. Computational resource allocation strategy: optimization computing resources are comprehensively allocated based on the contribution of the sub-problem to the objective and the margin of constraints of the sub-problem. The two strategies are then combined and their coupling effects analyzed.ResultsCompared with the original algorithm, under the same computational resources, the cabin weight is reduced by 10.3% and 7.0% when using the constraint progressive relaxation adjustment strategy and computational resource allocation strategy respectively, and the weight is reduced by 22.2% when both strategies are applied simultaneously, relative to the weight obtained by the original optimization method. Conclusion The proposed strategies are effective and possess value for the decomposition-based large-scale optimization of ship structures. |
|---|---|
| AbstractList | ObjectiveTo enhance the application effectiveness of the decomposition-based optimization method in the large-scale optimization design of ship cabin structures, a constraint progressive relaxation adjustment strategy and a computational resource allocation strategy are proposed that consider both the contribution of the sub-problem to the objective and the margin of constraints of the sub-problem. MethodsConstraint progressive relaxation adjustment strategy: initially, a tightened constraint boundary is given and then gradually relaxed until it recovers to the original constraint boundary, enabling all sub-problems to be more fully optimized. Computational resource allocation strategy: optimization computing resources are comprehensively allocated based on the contribution of the sub-problem to the objective and the margin of constraints of the sub-problem. The two strategies are then combined and their coupling effects analyzed.ResultsCompared with the original algorithm, under the same computational resources, the cabin weight is reduced by 10.3% and 7.0% when using the constraint progressive relaxation adjustment strategy and computational resource allocation strategy respectively, and the weight is reduced by 22.2% when both strategies are applied simultaneously, relative to the weight obtained by the original optimization method. Conclusion The proposed strategies are effective and possess value for the decomposition-based large-scale optimization of ship structures. |
| Author | Yuansheng CHENG Jun LIU Puyu JIANG Qiangjun LUO |
| Author_xml | – sequence: 1 fullname: Qiangjun LUO organization: School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, China – sequence: 2 fullname: Jun LIU organization: School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, China – sequence: 3 fullname: Puyu JIANG organization: School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, China – sequence: 4 fullname: Yuansheng CHENG organization: School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, China |
| BookMark | eNo9jU1OwzAQhb0oEqX0DPgCKXYcO-4SVfxUqsQG1tHYHhdXSVzZzgJOwZGhLWL1Rt_oe--GzMY4IiF3nK34Wq3F_WEVch5XXLWiElzLFROqbWdk_k-uyTLnYBhTUjVc6zn53sQxlwRhLBTcYcplwNM5OmrjcJwKlBBH6GnCHKdkkULfR3um9CQW3AfM1MdEHZ6UmMPpWRnI6GgPaY9VttAjjccShvB1caOn-SMcqQUTzk2TLdPvyC258tBnXP7lgrw_Pb5tXqrd6_N287CrHBe6VLJ1tdbaaOaFbkTdOq8ZeO640cYzXbvGKGgls8q3tQKhbdMaAU6itBKkWJDtpddFOHTHFAZIn12E0J1BTPsOUgm2x86Y2nn0Sq65bTyKNUeHrOaGM-uUNeIHYYh8ew |
| ContentType | Journal Article |
| DBID | DOA |
| DOI | 10.19693/j.issn.1673-3185.03677 |
| DatabaseName | Directory of Open Access Journals (DOAJ) |
| DatabaseTitleList | |
| Database_xml | – sequence: 1 dbid: DOA name: DOAJ Directory of Open Access Journals url: https://www.doaj.org/ sourceTypes: Open Website |
| DeliveryMethod | fulltext_linktorsrc |
| EndPage | 142 |
| ExternalDocumentID | oai_doaj_org_article_bb2dfef6591c4fe391ede021b10cd6cb |
| GroupedDBID | ALMA_UNASSIGNED_HOLDINGS GROUPED_DOAJ |
| ID | FETCH-LOGICAL-d138t-57d2888b80f384327df80af1d1b8bf082d4b6a750c6f726a38c47b3ad5e5c5a53 |
| IEDL.DBID | DOA |
| ISSN | 1673-3185 |
| IngestDate | Fri Oct 03 12:52:47 EDT 2025 |
| IsDoiOpenAccess | true |
| IsOpenAccess | true |
| IsPeerReviewed | true |
| IsScholarly | true |
| Issue | 4 |
| Language | Chinese English |
| LinkModel | DirectLink |
| MergedId | FETCHMERGED-LOGICAL-d138t-57d2888b80f384327df80af1d1b8bf082d4b6a750c6f726a38c47b3ad5e5c5a53 |
| OpenAccessLink | https://doaj.org/article/bb2dfef6591c4fe391ede021b10cd6cb |
| PageCount | 9 |
| ParticipantIDs | doaj_primary_oai_doaj_org_article_bb2dfef6591c4fe391ede021b10cd6cb |
| PublicationCentury | 2000 |
| PublicationDate | 2025-08-01 |
| PublicationDateYYYYMMDD | 2025-08-01 |
| PublicationDate_xml | – month: 08 year: 2025 text: 2025-08-01 day: 01 |
| PublicationDecade | 2020 |
| PublicationTitle | Zhongguo Jianchuan Yanjiu |
| PublicationYear | 2025 |
| Publisher | Editorial Office of Chinese Journal of Ship Research |
| Publisher_xml | – name: Editorial Office of Chinese Journal of Ship Research |
| SSID | ssib006564188 ssib051369161 ssib001166439 ssib001166667 ssib036436365 ssib038074742 |
| Score | 2.2990396 |
| Snippet | ObjectiveTo enhance the application effectiveness of the decomposition-based optimization method in the large-scale optimization design of ship cabin... |
| SourceID | doaj |
| SourceType | Open Website |
| StartPage | 134 |
| SubjectTerms | computational resource allocation strategy constraint adjustment strategy decomposition-based optimization algorithm large-scale optimization naval architecture ship cabin structure structural optimization |
| Title | Constraint adjustment and computational resource allocation strategies for decomposition-based large-scale optimization of ship cabin structures |
| URI | https://doaj.org/article/bb2dfef6591c4fe391ede021b10cd6cb |
| Volume | 20 |
| hasFullText | 1 |
| inHoldings | 1 |
| isFullTextHit | |
| isPrint | |
| link | http://cvtisr.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwrV07TwQhECbGWNgYjRrfobBFl2V5lWq8WF0sNLHbAAOJF70z9_B3-JMd2NW7q2ws2QcbYJb5BobvI-TSGm-UcolZZ4A1ugrMJOlZ8MqpZBKvkiliE3o4NC8v9nFF6ivnhHX0wF3HXXtfQ4pJSctDk6KwPEJEx-R5FUAFn2ffStuVYKoAAa6yq10rK7V6olI1fEnUJfBhJZb7fZmFvfkJGrEsuVCIo0r0prQoR477ZDGrrLgelT_26vfeFdao9ZoMQPFXg12y0wNNetM1cI9sxPE--cr6nEUVYk4djBazkmNO3RhoKPIO_dIgnfar-jTvy3erenQ2_6GVoIh0KcT8Sp_zxbI3BPqW88rZDMc90glORu_9KU86STSnhdHgMBKnHWntAj9yQJ4H9093D6zXZGDAhZkzqaHGoNmbKgnTiFpDMpVLHLg3PiGegAZHGWFIUEnXygkTGu2FAxllkE6KQ7I5nozjEaGWO4QniJDy1iYE72XmkYyAM4xpJNTH5DZ3X_vR0W60mQi7XEDzaHvzaP8yj5P_qOSUbNdZ9rfk_Z2RTeykeE62wuf8dTa9KJb3DXkd20A |
| linkProvider | Directory of Open Access Journals |
| openUrl | ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Constraint+adjustment+and+computational+resource+allocation+strategies+for+decomposition-based+large-scale+optimization+of+ship+cabin+structures&rft.jtitle=Zhongguo+Jianchuan+Yanjiu&rft.au=Qiangjun+LUO&rft.au=Jun+LIU&rft.au=Puyu+JIANG&rft.au=Yuansheng+CHENG&rft.date=2025-08-01&rft.pub=Editorial+Office+of+Chinese+Journal+of+Ship+Research&rft.issn=1673-3185&rft.volume=20&rft.issue=4&rft.spage=134&rft.epage=142&rft_id=info:doi/10.19693%2Fj.issn.1673-3185.03677&rft.externalDBID=DOA&rft.externalDocID=oai_doaj_org_article_bb2dfef6591c4fe391ede021b10cd6cb |
| thumbnail_l | http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/lc.gif&issn=1673-3185&client=summon |
| thumbnail_m | http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/mc.gif&issn=1673-3185&client=summon |
| thumbnail_s | http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/sc.gif&issn=1673-3185&client=summon |