Strength and stability analysis of new spherical bulkhead structure at stern

Objectives In order to make the stern have more space to optimize the arrangement of shafting and reduce the vibration of stern, a new spherical bulkhead structure for the stern is presented.Methods ANSYS software is adopted to establish a finite element model, and the strength and stability of the...

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Main Author: HOU Lei
Format: Article
Language:English
Published: Editorial Office of Chinese Journal of Ship Research 2020-04-01
Series:Zhongguo Jianchuan Yanjiu
Subjects:
Online Access:http://html.rhhz.net/ZGJCYJ/html/2020-2-56.htm
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author HOU Lei
author_facet HOU Lei
author_sort HOU Lei
collection DOAJ
description Objectives In order to make the stern have more space to optimize the arrangement of shafting and reduce the vibration of stern, a new spherical bulkhead structure for the stern is presented.Methods ANSYS software is adopted to establish a finite element model, and the strength and stability of the new and traditional spherical bulkhead structures are compared and analyzed. The influence of the thickness of the fence on the strength and stability of the bulkhead structure is then studied in spherical bulkheads of different thicknesses.Results The results show that when the thickness of the fence increases, the stability of the bulkhead structure will also approximately linearly increase. The effect on the strength of the spherical bulkhead structure depends on the position where the maximum Mises stress appears. When the maximum Mises stress is located near the fence, increasing the thickness of the fence can effectively reduce it. When the maximum Mises stress is located in the toroidal transition, increasing the thickness of the fence will not be helpful in reducing it.Conclusion This research can provide references for the design of spherical bulkhead structures.
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spelling doaj.art-48db688a202e456081b6e9f513fcbe5c2022-12-22T01:06:19ZengEditorial Office of Chinese Journal of Ship ResearchZhongguo Jianchuan Yanjiu1673-31851673-31852020-04-01152566210.19693/j.issn.1673-3185.015302020-2-56Strength and stability analysis of new spherical bulkhead structure at sternHOU Lei0Wuhan Second Military Representative Office, Naval Armament Department of PLAN, Wuhan 430064, ChinaObjectives In order to make the stern have more space to optimize the arrangement of shafting and reduce the vibration of stern, a new spherical bulkhead structure for the stern is presented.Methods ANSYS software is adopted to establish a finite element model, and the strength and stability of the new and traditional spherical bulkhead structures are compared and analyzed. The influence of the thickness of the fence on the strength and stability of the bulkhead structure is then studied in spherical bulkheads of different thicknesses.Results The results show that when the thickness of the fence increases, the stability of the bulkhead structure will also approximately linearly increase. The effect on the strength of the spherical bulkhead structure depends on the position where the maximum Mises stress appears. When the maximum Mises stress is located near the fence, increasing the thickness of the fence can effectively reduce it. When the maximum Mises stress is located in the toroidal transition, increasing the thickness of the fence will not be helpful in reducing it.Conclusion This research can provide references for the design of spherical bulkhead structures.http://html.rhhz.net/ZGJCYJ/html/2020-2-56.htmspherical bulkheadcompressive strengthstabilityfinite element method
spellingShingle HOU Lei
Strength and stability analysis of new spherical bulkhead structure at stern
Zhongguo Jianchuan Yanjiu
spherical bulkhead
compressive strength
stability
finite element method
title Strength and stability analysis of new spherical bulkhead structure at stern
title_full Strength and stability analysis of new spherical bulkhead structure at stern
title_fullStr Strength and stability analysis of new spherical bulkhead structure at stern
title_full_unstemmed Strength and stability analysis of new spherical bulkhead structure at stern
title_short Strength and stability analysis of new spherical bulkhead structure at stern
title_sort strength and stability analysis of new spherical bulkhead structure at stern
topic spherical bulkhead
compressive strength
stability
finite element method
url http://html.rhhz.net/ZGJCYJ/html/2020-2-56.htm
work_keys_str_mv AT houlei strengthandstabilityanalysisofnewsphericalbulkheadstructureatstern