Pub Date : 2020-05-18DOI: 10.4324/9781315644523-12
Peg McClellan
{"title":"Backings","authors":"Peg McClellan","doi":"10.4324/9781315644523-12","DOIUrl":"https://doi.org/10.4324/9781315644523-12","url":null,"abstract":"","PeriodicalId":48791,"journal":{"name":"Journal of Ship Production and Design","volume":"100 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80582403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-18DOI: 10.4324/9781315644523-22
Peg McClellan
{"title":"Special Thanks","authors":"Peg McClellan","doi":"10.4324/9781315644523-22","DOIUrl":"https://doi.org/10.4324/9781315644523-22","url":null,"abstract":"","PeriodicalId":48791,"journal":{"name":"Journal of Ship Production and Design","volume":"16 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81825736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-18DOI: 10.4324/9781315644523-20
Peg McClellan
{"title":"Credits","authors":"Peg McClellan","doi":"10.4324/9781315644523-20","DOIUrl":"https://doi.org/10.4324/9781315644523-20","url":null,"abstract":"","PeriodicalId":48791,"journal":{"name":"Journal of Ship Production and Design","volume":"37 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82663554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-18DOI: 10.4324/9781315644523-21
Peg McClellan
{"title":"To Read","authors":"Peg McClellan","doi":"10.4324/9781315644523-21","DOIUrl":"https://doi.org/10.4324/9781315644523-21","url":null,"abstract":"","PeriodicalId":48791,"journal":{"name":"Journal of Ship Production and Design","volume":"34 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77194129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-18DOI: 10.4324/9781315644523-11
Peg McClellan
{"title":"Studio Facilities","authors":"Peg McClellan","doi":"10.4324/9781315644523-11","DOIUrl":"https://doi.org/10.4324/9781315644523-11","url":null,"abstract":"","PeriodicalId":48791,"journal":{"name":"Journal of Ship Production and Design","volume":"58 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90953401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Changhui Liu, Liu Jianfeng, Z. Yansong, Sun Jin, Wang Can, X. Lai
Dimensional accuracy of hull block plays a critical role in guaranteeing the whole ship accuracy and reducing the hull butt-joint cost. The current industry practice of dimensional control in shipbuilding mainly focuses on the prediction of cutting and welding deformation based on engineering experience. Its main limitation is that the propagation and accumulation of deviations in the whole building process are neglected. In this article, cutting errors, assembly deviations, welding shrinkages, turnover distortions, and thermal expansions generated at different stages are analyzed. The propagation and accumulation of deviations and variations in the double-bottom block building process are studied based on the measured data in the whole process. Finally, the correlations of deviations between the adjacent stage are concluded. The conclusions can be used to guide the accuracy control in the hull block building process and reduce dimension trimming.
{"title":"Study on the Propagation of Dimensional Deviation in the Hull Block Building Process","authors":"Changhui Liu, Liu Jianfeng, Z. Yansong, Sun Jin, Wang Can, X. Lai","doi":"10.5957/JSPD.11180040","DOIUrl":"https://doi.org/10.5957/JSPD.11180040","url":null,"abstract":"Dimensional accuracy of hull block plays a critical role in guaranteeing the whole ship accuracy and reducing the hull butt-joint cost. The current industry practice of dimensional control in shipbuilding mainly focuses on the prediction of cutting and welding deformation based on engineering experience. Its main limitation is that the propagation and accumulation of deviations in the whole building process are neglected. In this article, cutting errors, assembly deviations, welding shrinkages, turnover distortions, and thermal expansions generated at different stages are analyzed. The propagation and accumulation of deviations and variations in the double-bottom block building process are studied based on the measured data in the whole process. Finally, the correlations of deviations between the adjacent stage are concluded. The conclusions can be used to guide the accuracy control in the hull block building process and reduce dimension trimming.","PeriodicalId":48791,"journal":{"name":"Journal of Ship Production and Design","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42524559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. Morgan, William Bragaw, S. Bruno, James J. Schock, Jacob Skimmons, Judson Wheeler, T. Taylor
A set of five vessel loading conditions was developed for exposed-waters towing vessels in support of compliance with applicable stability regulations invoked under the U.S. Code of Federal Regulations (CFR) Title 46, Subchapter M. These loading conditions are envisioned as a starting framework for the naval architect or third-party organization when pursuing a U.S. Coast Guard stability letter with the fewest operational restrictions. These conditions do not represent required operational scenarios. For each loading condition, variable loads based on both tank location and tank contents were specified with the goal of encouraging conservative stability evaluations, while maintaining a level of realism to the resulting vessel attitude at each condition. Use of these developed loading conditions as a replacement for the nearly forty-year-old McGowan and Meyer conditions is anticipated. Using 3D models and General HydroStatics stability software, three vessels representative of modern exposed-waters towing vessels, but designed before the enactment of Subchapter M, were tested against 46 CFR Subchapter S stability criteria at each loading condition. Results of the analysis are presented for each vessel and for each applicable Subchapter S criterion. As expected, vessels not designed for Subchapter M/Subchapter S stability regulations can have trouble passing using the proposed loading conditions. The authors experimented with simple changes to the tank geometry of these pre-Subchapter M vessels, creating compliance with nearly all stability criteria for all loading conditions. Based on relevant literature and the results of this work, it is recommended that, for conservatism, the free-to-trim method be used for stability analysis regardless of the loading conditions applied. It is recommended that if an exposed-waters towing vessel passes the applicable Subchapter S stability criteria using the loading conditions developed in this work, then the vessel should be considered for a stability letter with minimal operational restrictions.
{"title":"Loading Conditions for Exposed-Waters Towing Vessels Regulated under Subchapter M","authors":"E. Morgan, William Bragaw, S. Bruno, James J. Schock, Jacob Skimmons, Judson Wheeler, T. Taylor","doi":"10.5957/JSPD.02190010","DOIUrl":"https://doi.org/10.5957/JSPD.02190010","url":null,"abstract":"A set of five vessel loading conditions was developed for exposed-waters towing vessels in support of compliance with applicable stability regulations invoked under the U.S. Code of Federal Regulations (CFR) Title 46, Subchapter M. These loading conditions are envisioned as a starting framework for the naval architect or third-party organization when pursuing a U.S. Coast Guard stability letter with the fewest operational restrictions. These conditions do not represent required operational scenarios. For each loading condition, variable loads based on both tank location and tank contents were specified with the goal of encouraging conservative stability evaluations, while maintaining a level of realism to the resulting vessel attitude at each condition. Use of these developed loading conditions as a replacement for the nearly forty-year-old McGowan and Meyer conditions is anticipated. Using 3D models and General HydroStatics stability software, three vessels representative of modern exposed-waters towing vessels, but designed before the enactment of Subchapter M, were tested against 46 CFR Subchapter S stability criteria at each loading condition. Results of the analysis are presented for each vessel and for each applicable Subchapter S criterion. As expected, vessels not designed for Subchapter M/Subchapter S stability regulations can have trouble passing using the proposed loading conditions. The authors experimented with simple changes to the tank geometry of these pre-Subchapter M vessels, creating compliance with nearly all stability criteria for all loading conditions. Based on relevant literature and the results of this work, it is recommended that, for conservatism, the free-to-trim method be used for stability analysis regardless of the loading conditions applied. It is recommended that if an exposed-waters towing vessel passes the applicable Subchapter S stability criteria using the loading conditions developed in this work, then the vessel should be considered for a stability letter with minimal operational restrictions.","PeriodicalId":48791,"journal":{"name":"Journal of Ship Production and Design","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42776919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Production management in shipyards is one of the most significant activities impacting productivity. On-site managers and production planners still do not have sufficient production information to enable on-site scheduling because of restricted information sharing among departments. In this research, the main production management challenges were determined from workflow simulations of the production planning processes. An analysis of the requirements for effective communication between production management and on-site personnel was undertaken to establish an integrated hull construction, outfitting, and painting execution system architecture for shipyard applications, developed following the component-based design methodology. The proposed systems key functions encompass stages from block assembly to hull outfitting at the quay, and enable visualization of the production progress through color differentiation to maximize production information sharing. The proposed system facilitates the transmission of reliable and accurate production information to all relevant personnel in an appropriate timeframe.
{"title":"Development of an IHOP Execution System Based on Analyses of Shipyard Production Planning Process","authors":"Kwangkook Lee, J. Shin","doi":"10.5957/JSPD.08180032","DOIUrl":"https://doi.org/10.5957/JSPD.08180032","url":null,"abstract":"Production management in shipyards is one of the most significant activities impacting productivity. On-site managers and production planners still do not have sufficient production information to enable on-site scheduling because of restricted information sharing among departments. In this research, the main production management challenges were determined from workflow simulations of the production planning processes. An analysis of the requirements for effective communication between production management and on-site personnel was undertaken to establish an integrated hull construction, outfitting, and painting execution system architecture for shipyard applications, developed following the component-based design methodology. The proposed systems key functions encompass stages from block assembly to hull outfitting at the quay, and enable visualization of the production progress through color differentiation to maximize production information sharing. The proposed system facilitates the transmission of reliable and accurate production information to all relevant personnel in an appropriate timeframe.","PeriodicalId":48791,"journal":{"name":"Journal of Ship Production and Design","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48259064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Peiyong Li, Qiming Huang, Kunliang Shu, Yong-qing Zhou, Chong Wang
The aim of this study was to overcome the problems and difficulties in the process of using CNC ship cold frame bender, especially for the routine maintenance and troubleshooting of CNC ship cold frame bender. The remote monitoring system is established according to the work principle of CNC ship cold frame bender. The system is composed of Client/Server and Browser/Server mixed structure, which includes data acquisition module, data transmission module, data network sharing module, remote online fault detection module, etc. The test results show that the system can collect and analyze the operation condition of the equipment remotely, and then analyze the data to realize the remote online detection. Furthermore, experts can evaluate the performance data and the test results remotely and give feedback to the site by the data network distribution platform. The test results also demonstrate the promising application of the proposed remote monitoring system to effectively improve the efficiency of the CNC ship cold frame bender.
{"title":"Design of the Remote Monitoring System for CNC Ship Cold Frame Bender","authors":"Peiyong Li, Qiming Huang, Kunliang Shu, Yong-qing Zhou, Chong Wang","doi":"10.5957/JSPD.12170060","DOIUrl":"https://doi.org/10.5957/JSPD.12170060","url":null,"abstract":"The aim of this study was to overcome the problems and difficulties in the process of using CNC ship cold frame bender, especially for the routine maintenance and troubleshooting of CNC ship cold frame bender. The remote monitoring system is established according to the work principle of CNC ship cold frame bender. The system is composed of Client/Server and Browser/Server mixed structure, which includes data acquisition module, data transmission module, data network sharing module, remote online fault detection module, etc. The test results show that the system can collect and analyze the operation condition of the equipment remotely, and then analyze the data to realize the remote online detection. Furthermore, experts can evaluate the performance data and the test results remotely and give feedback to the site by the data network distribution platform. The test results also demonstrate the promising application of the proposed remote monitoring system to effectively improve the efficiency of the CNC ship cold frame bender.","PeriodicalId":48791,"journal":{"name":"Journal of Ship Production and Design","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47248420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Peiyong Li, Xiang Gao, Xiaodong Wu, Huawei Zhang, Chong Wang
This article discusses cutting and packing problems found in the shipbuilding industry, with the aim of minimizing material wastage. The irregular nesting problem is a variation of such problems in which the container has variable length and fixed width. Nesting of irregular shapes is a combinatorial problem with nondeterministic polynomial complete difficulty. Generally, work on solving such problems is mainly conducted in the fields of geometry and operations research. This study proposes a new method for solving the nesting problem; i.e., shape nesting can be simulated by the motion of discrete bodies in a container with a fixed width. Calculation with the program developed by the authors has been performed, and the results show that the algorithm was able to achieve good compaction for the datasets, and the running time and utility of sheet are satisfied. Results of this study show that the new method based on motion simulation can be a new solution to the shape nesting problem.
{"title":"Nesting Problem of Irregular Shape Based on Motion Simulation","authors":"Peiyong Li, Xiang Gao, Xiaodong Wu, Huawei Zhang, Chong Wang","doi":"10.5957/JSPD.08180029","DOIUrl":"https://doi.org/10.5957/JSPD.08180029","url":null,"abstract":"This article discusses cutting and packing problems found in the shipbuilding industry, with the aim of minimizing material wastage. The irregular nesting problem is a variation of such problems in which the container has variable length and fixed width. Nesting of irregular shapes is a combinatorial problem with nondeterministic polynomial complete difficulty. Generally, work on solving such problems is mainly conducted in the fields of geometry and operations research. This study proposes a new method for solving the nesting problem; i.e., shape nesting can be simulated by the motion of discrete bodies in a container with a fixed width. Calculation with the program developed by the authors has been performed, and the results show that the algorithm was able to achieve good compaction for the datasets, and the running time and utility of sheet are satisfied. Results of this study show that the new method based on motion simulation can be a new solution to the shape nesting problem.","PeriodicalId":48791,"journal":{"name":"Journal of Ship Production and Design","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43999103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：