Pub Date : 2023-10-24DOI: 10.58771/joinmet.1317372
Gülsüm KILIÇ, Asım Sinan KARAKURT
Rüzgâr enerjisi teknolojisi, rüzgârın türbin kanatlarını döndürmesi sonucu mekanik enerjinin elektrik enerjisine dönüşmesi esasına dayanır. Rüzgâr türbininin kurulacağı yerin rüzgâr potansiyeli, verimli bir elektrik üretimi için oldukça önemlidir. Türbinlerde kullanılan jeneratör tipi, kanat aerodinamiği ve kanat sayısı verimi etkileyen faktörlerdendir. Kanat profili, kanat yapısı ve sürüklenme katsayısının kaldırma katsayısına oranı da (CL/CD) verimlilik bakımından türbin performansını etkileyen önemli parametrelerdir. Farklı kanat profillerinde aynı hücum açısında (CL/CD) oranı farklılık gösterebilmektedir. Bu çalışmada biyomimikri yöntemi ile baykuş kanadı formundan ilham alınarak NACA-4412 profili üzerinde kanal açılmıştır. Kanallar, kanal genişliği 12 mm ve kanal derinliği kanat profilinin yüzeyinin %10 oranında küçültülmesiyle tüm yüzeyde 40 mm mesafe ile 5 tane olacak şekilde oluşturulmuştur. Farklı Reynolds sayılarında ve farklı hücum açılarında analizler gerçekleştirilmiştir. Kanallı model için sürüklenme katsayısı(CD) ve kaldırma katsayısı(CL) değerleri elde edilmiştir. Kanallı ve kanalsız model için analizlerin gerçekleştirildiği hücum açıları ve Reynolds sayılarında kaldırma katsayısı/sürüklenme katsayısı (CL/CD) oranları kıyaslanmıştır. Yapılan analizler sonucunda kanal açılmış kanat profilinin CL/CD oranın daha yüksek olduğu görülmüştür. Referans modelden daha iyi bir performansa sahip olduğu anlaşılmıştır.
{"title":"Biyonik Türbin Kanadı Tasarımında Aerodinamik Form Optimizasyonu","authors":"Gülsüm KILIÇ, Asım Sinan KARAKURT","doi":"10.58771/joinmet.1317372","DOIUrl":"https://doi.org/10.58771/joinmet.1317372","url":null,"abstract":"Rüzgâr enerjisi teknolojisi, rüzgârın türbin kanatlarını döndürmesi sonucu mekanik enerjinin elektrik enerjisine dönüşmesi esasına dayanır. Rüzgâr türbininin kurulacağı yerin rüzgâr potansiyeli, verimli bir elektrik üretimi için oldukça önemlidir. Türbinlerde kullanılan jeneratör tipi, kanat aerodinamiği ve kanat sayısı verimi etkileyen faktörlerdendir. Kanat profili, kanat yapısı ve sürüklenme katsayısının kaldırma katsayısına oranı da (CL/CD) verimlilik bakımından türbin performansını etkileyen önemli parametrelerdir. Farklı kanat profillerinde aynı hücum açısında (CL/CD) oranı farklılık gösterebilmektedir. Bu çalışmada biyomimikri yöntemi ile baykuş kanadı formundan ilham alınarak NACA-4412 profili üzerinde kanal açılmıştır. Kanallar, kanal genişliği 12 mm ve kanal derinliği kanat profilinin yüzeyinin %10 oranında küçültülmesiyle tüm yüzeyde 40 mm mesafe ile 5 tane olacak şekilde oluşturulmuştur. Farklı Reynolds sayılarında ve farklı hücum açılarında analizler gerçekleştirilmiştir. Kanallı model için sürüklenme katsayısı(CD) ve kaldırma katsayısı(CL) değerleri elde edilmiştir. Kanallı ve kanalsız model için analizlerin gerçekleştirildiği hücum açıları ve Reynolds sayılarında kaldırma katsayısı/sürüklenme katsayısı (CL/CD) oranları kıyaslanmıştır. Yapılan analizler sonucunda kanal açılmış kanat profilinin CL/CD oranın daha yüksek olduğu görülmüştür. Referans modelden daha iyi bir performansa sahip olduğu anlaşılmıştır.","PeriodicalId":50152,"journal":{"name":"Journal of Marine Engineering and Technology","volume":"99 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135321795","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}
Recently, automation and unmanned technologies have been developing rapidly in various industries. In the field of traffic and transportation, the development of unmanned technologies is remarkable, and it is already moving on to the practical stage in the field of transportation infrastructure such as automobiles, railways and aircrafts. The development of automation and autonomy technologies is expected not only to save manpower and reduce labor, but also to eliminate human errors and greatly contribute to ensuring our safety. This paper focuses on our autonomous technology for ships and also introduces the history of our development processes. In view of the greater use of the autonomous technology in society in the future, this innovation is considered to be also used for inspection work on marine infrastructure such as breakwaters and revetment structures. With this notion in mind, we have conducted an experiment to confirm whether our autonomous vehicles are suitable to meet such a purpose. In addition, we describe the expectations, challenges, and prospects for practical applications of the technology in other areas, such as marine traffic and security, as well as inspection applications for marine infrastructure.
{"title":"Introduction of Multipurpose USVs and Their Application Examples","authors":"Yoshimori Shimoda, Kazuhiro Shirokane, Masanori Ohashi","doi":"10.5988/jime.58.617","DOIUrl":"https://doi.org/10.5988/jime.58.617","url":null,"abstract":"Recently, automation and unmanned technologies have been developing rapidly in various industries. In the field of traffic and transportation, the development of unmanned technologies is remarkable, and it is already moving on to the practical stage in the field of transportation infrastructure such as automobiles, railways and aircrafts. The development of automation and autonomy technologies is expected not only to save manpower and reduce labor, but also to eliminate human errors and greatly contribute to ensuring our safety. This paper focuses on our autonomous technology for ships and also introduces the history of our development processes. In view of the greater use of the autonomous technology in society in the future, this innovation is considered to be also used for inspection work on marine infrastructure such as breakwaters and revetment structures. With this notion in mind, we have conducted an experiment to confirm whether our autonomous vehicles are suitable to meet such a purpose. In addition, we describe the expectations, challenges, and prospects for practical applications of the technology in other areas, such as marine traffic and security, as well as inspection applications for marine infrastructure.","PeriodicalId":50152,"journal":{"name":"Journal of Marine Engineering and Technology","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135637575","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}
{"title":"日本ガス開発株式会社の液化アンモニア貯蔵・気化設備とカーボンニュートラルへの対応","authors":"Yoshio Kasai","doi":"10.5988/jime.58.714","DOIUrl":"https://doi.org/10.5988/jime.58.714","url":null,"abstract":"","PeriodicalId":50152,"journal":{"name":"Journal of Marine Engineering and Technology","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135637587","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}
In recent years, the maritime industry has actively proceeded with research and development on technologies related to maritime autonomous surface ships (MASS) and their remote operation systems. Demonstrations of these technologies have been carried out using actual vessels. At the same time, individual technological elements related to MASS have also been developed. Among these technological advances, those associated with cyber security are of particular importance. This paper investigates the use of 'LTE over IP' which is designed to ensure secure communication by enabling LTE technology for mobile phones to be used in IP networks. The authors examined how the use of 'LTE over IP' affects the communication characteristics of a remote-control system.
近年来，海运业积极开展海上自主水面舰艇(MASS)及其远程操作系统相关技术的研究与开发。这些技术已经在实际船舶上进行了演示。与此同时，与MASS相关的个别技术元素也得到了发展。在这些技术进步中，与网络安全相关的技术进步尤为重要。本文研究了“LTE over IP”的使用，该技术旨在通过在IP网络中使用移动电话的LTE技术来确保安全通信。作者研究了“LTE over IP”的使用如何影响远程控制系统的通信特性。
{"title":"LTE over IPを活用した遠隔操縦システムの特性検証","authors":"Nobuyuki Kamijo, Ayako Umeda, Etsuro Shimizu","doi":"10.5988/jime.58.640","DOIUrl":"https://doi.org/10.5988/jime.58.640","url":null,"abstract":"In recent years, the maritime industry has actively proceeded with research and development on technologies related to maritime autonomous surface ships (MASS) and their remote operation systems. Demonstrations of these technologies have been carried out using actual vessels. At the same time, individual technological elements related to MASS have also been developed. Among these technological advances, those associated with cyber security are of particular importance. This paper investigates the use of 'LTE over IP' which is designed to ensure secure communication by enabling LTE technology for mobile phones to be used in IP networks. The authors examined how the use of 'LTE over IP' affects the communication characteristics of a remote-control system.","PeriodicalId":50152,"journal":{"name":"Journal of Marine Engineering and Technology","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135637588","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}
In this paper, I will provide an overview of Marine Drone 3.1, a USV control system for mini-boats, featuring the embedded OS 'F-OS' that target 8/16/32bit microcontrollers. Marine Drone 3.1 boasts high portability and unique strengths in the current market environment characterized by semiconductor shortages. It was developed in consideration of future software verification, with a focus on avoiding the inclusion of SOUP items. Comprised of 56 tasks, Marine Drone 3.1 features an interactive shell for serial communication and external APIs. This paper describes the functionalities, control software, and external APIs of Marine Drone 3.1. The author hopes that this project will contribute to the advancement of small marine drones.
{"title":"Introduction of USV Control System \"Marine Drone 3.1\"","authors":"Yosuke Furusawa","doi":"10.5988/jime.58.623","DOIUrl":"https://doi.org/10.5988/jime.58.623","url":null,"abstract":"In this paper, I will provide an overview of Marine Drone 3.1, a USV control system for mini-boats, featuring the embedded OS 'F-OS' that target 8/16/32bit microcontrollers. Marine Drone 3.1 boasts high portability and unique strengths in the current market environment characterized by semiconductor shortages. It was developed in consideration of future software verification, with a focus on avoiding the inclusion of SOUP items. Comprised of 56 tasks, Marine Drone 3.1 features an interactive shell for serial communication and external APIs. This paper describes the functionalities, control software, and external APIs of Marine Drone 3.1. The author hopes that this project will contribute to the advancement of small marine drones.","PeriodicalId":50152,"journal":{"name":"Journal of Marine Engineering and Technology","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135637805","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}
{"title":"Green Ammonia Value Chain","authors":"Toshihiko Awano","doi":"10.5988/jime.58.702","DOIUrl":"https://doi.org/10.5988/jime.58.702","url":null,"abstract":"","PeriodicalId":50152,"journal":{"name":"Journal of Marine Engineering and Technology","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135637807","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}
{"title":"Introducing \"ECOANN\", Low-carbon Ammonia Produced through Resource Recycling Scheme - World's Only Long-term Stable Operation Plant for Gasification and Chemical Recycling","authors":"Takashi Takikami","doi":"10.5988/jime.58.691","DOIUrl":"https://doi.org/10.5988/jime.58.691","url":null,"abstract":"","PeriodicalId":50152,"journal":{"name":"Journal of Marine Engineering and Technology","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135637812","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}
Koji Murai, Hitoi Tamaru, Sayuri Mantani, Kiyoshi Maeda
{"title":"Research Project to Quantify Seafarers' Skills Based on Physiological Index","authors":"Koji Murai, Hitoi Tamaru, Sayuri Mantani, Kiyoshi Maeda","doi":"10.5988/jime.58.661","DOIUrl":"https://doi.org/10.5988/jime.58.661","url":null,"abstract":"","PeriodicalId":50152,"journal":{"name":"Journal of Marine Engineering and Technology","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135637815","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}
In the case of automatic navigation in an offshore area, as the target area is wide and the navigation environment is sparse with few obstacles, highly accurate route-tracking is not generally required. On the other hand, when automatic navigation is performed in a relatively restricted area, such as a harbor, the target area has a dense environment with many obstacles such as other vessels and buoys, which requires highly accurate route tracking. In addition, the system must navigate a course that can maintain appropriate distances from obstacles in preparation for unexpected external forces such as wind. In this paper, we propose a method to generate an appropriate navigation route to satisfy different requirements of two chart types, namely charts for automatic navigation in offshore areas that are defined as sparse wide-area maps and those for automatic berthing and unberthing that are defined as dense narrow-area maps. The proposed method was then applied to the actual environment to verify its usefulness, and then automatic navigation was performed using a generated route.
{"title":"水上での物体認識および認識結果を考慮した航路生成","authors":"Yuichiro Dake, Suisei Wada, Tomoya Fukukawa, Satoshi Minamiyama, Naohiro Hara, Hisashi Sugiura","doi":"10.5988/jime.58.629","DOIUrl":"https://doi.org/10.5988/jime.58.629","url":null,"abstract":"In the case of automatic navigation in an offshore area, as the target area is wide and the navigation environment is sparse with few obstacles, highly accurate route-tracking is not generally required. On the other hand, when automatic navigation is performed in a relatively restricted area, such as a harbor, the target area has a dense environment with many obstacles such as other vessels and buoys, which requires highly accurate route tracking. In addition, the system must navigate a course that can maintain appropriate distances from obstacles in preparation for unexpected external forces such as wind. In this paper, we propose a method to generate an appropriate navigation route to satisfy different requirements of two chart types, namely charts for automatic navigation in offshore areas that are defined as sparse wide-area maps and those for automatic berthing and unberthing that are defined as dense narrow-area maps. The proposed method was then applied to the actual environment to verify its usefulness, and then automatic navigation was performed using a generated route.","PeriodicalId":50152,"journal":{"name":"Journal of Marine Engineering and Technology","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135637586","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}
In recent years, research and development of the automatic driving technology for automobiles, air vehicles and ships etc. have actively been carried out. The foundation of the technology is self-localization, a technique that enables the moving object to estimate its position in space. Mapping is an essential element for this self-localization. In this paper, the 3D map information required for maritime autonomous surface ships (MASS) is discussed. The authors outline related technologies for automobiles and urban infrastructures and examine the possibility of using such information for MASS. We also explain the results of a trial to display route information for MASS on existing digital maps.
{"title":"Study on Information Required for 3D Maps for Maritime Autonomous Surface Ships","authors":"Tomoyuki Tachiki, Etsuro Shimizu, Ayako Umeda, Masafumi Nakagawa, Nobuaki Kudo","doi":"10.5988/jime.58.634","DOIUrl":"https://doi.org/10.5988/jime.58.634","url":null,"abstract":"In recent years, research and development of the automatic driving technology for automobiles, air vehicles and ships etc. have actively been carried out. The foundation of the technology is self-localization, a technique that enables the moving object to estimate its position in space. Mapping is an essential element for this self-localization. In this paper, the 3D map information required for maritime autonomous surface ships (MASS) is discussed. The authors outline related technologies for automobiles and urban infrastructures and examine the possibility of using such information for MASS. We also explain the results of a trial to display route information for MASS on existing digital maps.","PeriodicalId":50152,"journal":{"name":"Journal of Marine Engineering and Technology","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135637801","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}
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