Journal articles: 'Warsips'

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Wu, Qing Hua, and An Qing Zhang. "Research on Beamforming Technique for Communications in Moving of Warship Circular Array Antenna." Applied Mechanics and Materials 241-244 (December 2012): 2295–98. http://dx.doi.org/10.4028/www.scientific.net/amm.241-244.2295.

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Uniform circular antenna array of warship can bring beam and interference null steering from 360° symmetry without rotating. Directional communications can be achieved by UCA geometry. To solve the problem that warship’s stance is changed dynamically in course of sailing, a method was suggested that the electricity phases of UCA elements were changed based on information of stance about longitudinal sway, transverse sway and course. The proposed method can change beam directivity, and ensure providing a very directive pattern with stabilization, so that warships communication in moving each other. An expression of array maximum directivity forming with dynamic is proposed for UCA antenna. The simulation demonstrates that the beam forming method of communications in moving is validity, and is worth using with wide application.

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Wang, Xing Zhong. "Multi-Agent Based Modeling of Warship Combat Command and Control System." Applied Mechanics and Materials 246-247 (December 2012): 898–902. http://dx.doi.org/10.4028/www.scientific.net/amm.246-247.898.

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To solving the inefficiency-problem in warship combat command and control system, this paper builds multi-agent oriented system architecture. It uses CORBA to support communication among heterogeneous systems and uses UML to design system prototype. Taking our two warships chasing an enemy-warship collaboratively for example, this paper illustrates the agent-oriented modeling process, including the role model, interaction model, state model and class model. This approach is able to meet the needs of modeling the warship combat command and control system.

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Li, Xiang, Sheng Huang, and Chong Wang. "Analysis and Research on Flight Mechanics with Air-Wake around Large Warship Decks." Advanced Materials Research 977 (June 2014): 395–98. http://dx.doi.org/10.4028/www.scientific.net/amr.977.395.

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For large warships, aircrafts play an important role in the war. So during the development of large warships, the safety of the aircrafts takeoff and landing becomes the key technology, which requires the air-wake around large warship decks provide a safety environment for its busy work. However, for the warships with flush deck, superstructure is the main reason of causing air turbulence on the ship surface. At the same time, the states of motion also have an effect on air-wake such as pitch, rolling, etc. It will lead to air crash or inability of takeoff and landing if the air-wake around decks cannot meet the work requirements of the aircrafts. Therefore, the numerical simulation of air-wake around decks is very important for the development of large warships during the war.

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Ahmadi, Ahmadi, Benny Sukandari, and Agus Mahrowi. "THE WARSHIP ASSIGNMENT SCHEDULE USING INTEGER PROGRAMMING MODEL." JOURNAL ASRO 10, no. 3 (October 31, 2019): 49. http://dx.doi.org/10.37875/asro.v10i3.150.

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Scheduling is an assignment activity that deals with constraints. A number of events can occur in a period of time and location so that objective functions as close as possible can be fulfilled. In the hierarchy of decision making, scheduling is the last step before the start of an operation. Scheduling warship assignments in Kolinlamil are an interesting topic to discuss and find solutions to using mathematical methods. The process of the Kolinlamil warship assignment schedule was carried out to produce an annual shipbuilding schedule. This process not only requires fast follow-up, but also requires systematic and rigorous steps. Where the assignment schedule is a fairly complex combinatorial problem. While making the assignment schedule that is applied at this time is considered less accurate because it calculates the conventional method. The process of warship assignment schedule in this study using the Integer Programming model aims to obtain alternative scheduling operations. The schedule observed was 13 warships in carrying out N operations for 1 year (52 weeks). This research begins with determining the decision variables and limitations that existing constraints. Hard constraints include: maintenance schedule, time and duration of each task, warship class assigned to the task and the number of executing warships per task. While soft constraints are how long the warship performs its tasks in a row. The mathematical formulation of the Integer Programming model created consists of three indicator, one decision variables, two measuring parameters and five constraint functions. Furthermore, determining the best scheduling alternatives is completed using the Microsoft Exel Solver computing program.Keywords: Scheduling, Integer Programming, Solver.

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Keane, Robert G., and Barry F. Tibbitts. "A Revolution in Warship Design: Navy-Industry Integrated Product Teams." Journal of Ship Production 12, no. 04 (November 1, 1996): 254–68. http://dx.doi.org/10.5957/jsp.1996.12.4.254.

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The authors advocate the adoption of joint Navy-Industry Integrated Product Teams (IPTs) throughout the whole acquisition process for a new warship, including detail design and construction of the lead ship. This paper describes how the use of joint Navy-Industry IPTs is revolutionizing warship design during the early design stages, and identifies both the benefits and some of the critical obstacles for the use of such IPTs after contract award. The purpose of this paper is not to offer "textbook" solutions, but rather to stimulate discussion and to initiate dialog. The authors contend that the use of IPTs is essential to quality design and timely acquisition of effective, balanced, and affordable warships. The experience that U.S. shipbuilders gain from the application of Integrated Product and Process Development (IPPD) principles to the design and construction of world-class warships can be directly transferred to the world-class development of commercial ships for the international market.

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Zhang, Shuo, Jin Yun Pu, and Dong Zhen Li. "Research on Field Simulation Application in Warship Cabin Performance-Based Fire Protection Design." Applied Mechanics and Materials 525 (February 2014): 325–30. http://dx.doi.org/10.4028/www.scientific.net/amm.525.325.

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As the rapid development of warship equipment automation, warship cabin fire protection design in many developed countries has transformed from the prescription approach to Performance-based Fire Protection Design (PFPD). Since the warship is moving offshore structures, its PFPD can fully learn from building PFPD on land. This paper firstly outlined the concepts and methods of building PFPD. Through comparing the similarities and differences of structure and fire-fighting capacity both on warships and in building, the warship cabin PFPD roadmap was proposed. From the perspectives of warship structure and personnel protection, warship PFPD parameters were proposed. Applied field simulation model into quantitative and numerical analysis of the fire compartments and adjacent ones to determine the cabins not meeting the demands of PFPD parameters. According to the analysis, take active or passive optimization fire protection measures making these compartments optimized design to meet structure fireproof parameters, ultimately achieve the fire protection purpose.

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Li, Yuxing, Long Wang, Xueping Li, and Xiaohui Yang. "A Novel Linear Spectrum Frequency Feature Extraction Technique for Warship Radio Noise Based on Complete Ensemble Empirical Mode Decomposition with Adaptive Noise, Duffing Chaotic Oscillator, and Weighted-Permutation Entropy." Entropy 21, no. 5 (May 18, 2019): 507. http://dx.doi.org/10.3390/e21050507.

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Warships play an important role in the modern sea battlefield. Research on the line spectrum features of warship radio noise signals is helpful to realize the classification and recognition of different types of warships, and provides critical information for sea battlefield. In this paper, we proposed a novel linear spectrum frequency feature extraction technique for warship radio noise based on complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN), duffing chaotic oscillator (DCO), and weighted-permutation entropy (W-PE). The proposed linear spectrum frequency feature extraction technique, named CEEMDAN-DCO-W-PE has the following advantages in comparison with other linear spectrum frequency feature extraction techniques; (i) as an adaptive data-driven algorithm, CEEMDAN has more accurate and more reliable decomposition performance than empirical mode decomposition (EMD) and ensemble EMD (EEMD), and there is no need for presetting parameters, such as decomposition level and basis function; (ii) DCO can detect the linear spectrum of narrow band periodical warship signals by way of utilizing its properties of sensitivity for weak periodical signals and the immunity for noise; and (iii) W-PE is used in underwater acoustic signal feature extraction for the first time, and compared with traditional permutation entropy (PE), W-PE increases amplitude information to some extent. Firstly, warship radio noise signals are decomposed into some intrinsic mode functions (IMFs) from high frequency to low frequency by CEEMDAN. Then, DCO is used to detect linear spectrum of low-frequency IMFs. Finally, we can determine the linear spectrum frequency of low-frequency IMFs using W-PE. The experimental results show that the proposed technique can accurately extract the line spectrum frequency of the simulation signals, and has a higher classification and recognition rate than the traditional techniques for real warship radio noise signals.

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8

Ariyoko, Harun Bekti, I. Nengah Putra, and Okol Sri Suharyo. "ASSESSMENT OF TECHNOLOGY COMPETITIVENESS ABILITIES IN INDONESIAN WAR SHIP IN ASIA." JOURNAL ASRO 10, no. 3 (October 31, 2019): 58. http://dx.doi.org/10.37875/asro.v10i3.151.

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The assessment of technological competitiveness can be carried out at the level of a stage of transformation on a warship. With the dynamics of defence and security threats to the Indonesian state, both symmetrical and asymmetrical, warship technology must continue to improve combat capability and professionalism of human resources in accordance with technological developments towards the industrial revolution 4.0, in order to have a high level of competitiveness. The purpose of this study is to determine the strengths and weaknesses of warship performance through the assessment of technological capabilities. The research result, at the level of technological capability and the existing gap of fourth components, where the current level of capability on warships W has a gap of the technological development that is farthest away with countries Y and Z is the development of the level of technological capability on technical devices and followed by developments the level of technological capability in human resources (soldiers). The benefits of the research are expected to be used as material for consideration by planners and decision makers in integrating technological considerations into the planning of warship development in the modern era.Keywords: Technology Capability Assessment, Warship Technology, Techometrics

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Diksono, Diksono, I. Made Jiwa, and Suparno Suparno. "RISK MANAGEMENT ON THE WARSHIP TASK OPERATIONS." JOURNAL ASRO 9, no. 1 (February 12, 2018): 23. http://dx.doi.org/10.37875/asro.v9i1.54.

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ABSTRACT The main task of the Indonesia Navy is to enforce the law and maintain security in the territorial sea of national jurisdiction, so that the Indonesian Navy is required to have the main tool of weapons systems (Alutsista) are always ready to carry out the task. The frequent occurrence of accidents experienced by the Indonesian Warship (KRI). This reduces the ability of Warship in performing the task. The purpose of this research is to investigate the causes and effects of accidents, and seek risk mitigation that is considered appropriate. Formal Safety Assessment (FSA) is a structured and systematic methodology used for maritime safety analysis. The fault tree analysis is used to investigate the cause of marine accidents and the event tree analysis is used to determine the impact of an accident. The results of this study are FSA can be effectively applied in accident investigations, although the calculation of cost benefit analysis for warships can be ignored because the Warship task cannot be compared to the value of money. Keywords: Task Operation, Warship, FSA, fault tree analysis, event tree analysis

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10

Yu, Pingbo, Gaofeng Liu, and Li Gong. "Comparative Analysis and Development Exploration of Threat Assessment Methods for Warship Air Defense." MATEC Web of Conferences 291 (2019): 01006. http://dx.doi.org/10.1051/matecconf/201929101006.

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Warship’s air defense target threat assessment is an uncertainty issue. This paper briefly states the basic process and types of threat assessment methods for warship air defense, using comparative research method, the mechanism and characteristics of the certainty/uncertainty assessment method for target threat assessment are compared. It also analyzes the application of fuzzy theory, neural network and genetic fuzzy tree in target threat assessment, which has certain reference value for the research of warship air defense target threat assessment.

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11

Xue, Yan Hua, Xiao Hong Li, Zhi Guang Wang, and Jie Song. "Dynamic Optimization Design of a Warship’s Gearbox Based on FEM." Applied Mechanics and Materials 86 (August 2011): 662–65. http://dx.doi.org/10.4028/www.scientific.net/amm.86.662.

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The transmission system of warship’s gearbox is increasingly developing in the direction of high-speed, high-efficiency, heavy-load and light-weight, and the requirements of vibration are increasing as well. The gearbox designed according to static standard often has various problems of instability and vibration which greatly weaken the behaviors of gearbox and influence the invisibility performance of warship seriously. To improve the vibration characteristics of gearbox, vibration modal analysis of a warship’s gearbox is studied based on FEM. In order to avoid resonance in transmission, double-frequency dynamic optimization design of a gearbox is studied and discussed. The method and conclusions can be used as a reference of design of warship’s gearbox.

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12

Aisjah, Aulia Siti, Agoes Ahmad Masroeri, Nathanael Leon Gozali, Ridho Akbar, Devina Permata Sari, and Ii Munadhif. "Parameter Estimation of Maneuvering Variables of SIGMA-Extended War Ship Using Kalman Filter." Applied Mechanics and Materials 874 (January 2018): 96–102. http://dx.doi.org/10.4028/www.scientific.net/amm.874.96.

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SIGMA-class warship one of warship type is designed up to sea state 6. The ship was redesigned in enlarged dimensions, and called SIGMA extended class warships. A control system can give a performance of response in accordance to the set point when the value of controlled variable can be transmitted to the controller accurately. The characteristic of sensor is not usually able to tranmit a proper value, due to the noise on the sensor and also the environment disturbances. This paper describe a strategy of Kalman filter to estimate variables controlled when the presence noise on the compass or gyrocompas. The result of Kalman filter implementations give the magnitude of the integral absolute error of yaw and sway less than 5%, when there are noise on the measurement and the disturbances.

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13

Chen, Chang Hai, Xi Zhu, Hai Liang Hou, Li Jun Zhang, and Ting Tang. "Experimental Study on the Response Characteristics of Oilcans under High-Velocity Fragment Impact." Advanced Materials Research 510 (April 2012): 500–506. http://dx.doi.org/10.4028/www.scientific.net/amr.510.500.

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To explore the deflagration possibility of the warship cabin filled with fuel oil under impact of high-speed fragments in the condition of room temperature, experiments were carried out employing the small aluminium oilcans filled with fuel oil. Response processes of the oilcans were observed with the help of a high-speed camera. The disintegration as well as flying scattering of the oilcans were analyzed. The reasons for atomization of the fuel oils were presented. Finally, the deflagration possibility of warship oil cabin was analyzed. Results show that the pressure inside the oilcan is quite great under the impact of the high-speed fragment, which makes the oilcan disintegration and flying scattering. Simultaneously, fuel oils inside the oilcans are atomized quickly followed by ejected in front and back directions. Under the same condition as in present tests, deflagration will not occur for fuel oils used by warships. Experimental results will provide valuable references for the deflagration analysis of warship fuel oil cabins subjected to the impact of high-velocity fragments.

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Huda, Khairul, Zaenal Syahlan, M. Syaifi, and Edy Widodo. "INDONESIAN WARSHIP HISTORY INFORMATION SYSTEM OF INDONESIAN FLEET BASED ON WEB." JOURNAL ASRO 10, no. 2 (July 24, 2019): 105. http://dx.doi.org/10.37875/asro.v10i2.236.

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The development of information technology also developed in line with thedevelopment of human civilization. The development of information technology is veryhelpful, one of which is the internet. The use of the internet has developed into anappropriate means to convey information that is fast, effective and accurate. Submissionof information is not limited to all soldiers and the general public by utilizing technologicalfacilities, namely websites. In conveying the history of Indonesia Warship Raden EddyMartadinata 331 and Indonesia Warship I Gusti Ngurah Rai 332 are still stored in the formof documents on a computer and are still printed in the form of sheets of paper. Inconveying the history of Indonesia Warship, it must be developed further to conveyinformation in the current era. Historical research that executive focuses on the past. Sofar, information on the Indonesia Warship Indonesia Warship's historical informationsystem Raden Eddy Martadinata - 331 and Indonesia Warship I Gusti Ngurah Rai - 332on the web-based Indonesian Armed Forces fleet are still in print. besides usinginformation books, then try to make other alternatives by creating a website, besides thatmembers are expected to access information easily and efficiently. With theineffectiveness in managing Indonesia Warship Indonesia Warship historical data RadenEddy Martadinata - 331 and Indonesia Warship I Gusti Ngurah Rai - 332, a design of theIndonesia Warship historical information system was built in the web-based IndonesianArmada fleet which aims to facilitate the process of Indonesia Warship history search.PHP as a programmer and MySQL as the database.Keywords: Website-Based Indonesia Warship History Information System. PHP MySQL.

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15

Lewis, Angeline. "Flag Verification on the High Seas: Understanding Requirements for Masters and Commanders." International Journal of Marine and Coastal Law 30, no. 2 (May 25, 2015): 335–60. http://dx.doi.org/10.1163/15718085-12341352.

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Operational reporting from the Middle East indicates that the exercise by warships of a right of visit on the high seas, in order to verify the flag of the boarded vessel, is an important part of contemporary maritime enforcement operations. However, this reliance on ‘flag verification boardings,’ pursuant to Article 110 of the United Nations Convention on the Law of the Sea 1982, challenges the proper balance of law enforcement authority against the traditional freedom of navigation. It is therefore necessary to establish clearly for both civilian masters and warship commanders where the evidentiary threshold for reasonable doubt as to the nationality of vessels lies, so as to justify non-consensual visit and search by a foreign warship. This article makes an objective, evidence-based assessment of the threshold, concluding with a caution against over-stretching the right of visit to accommodate law enforcement purposes not envisaged in the drafting of Article 110.

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Wang, Yan Hui, Jian Zhou Mao, and Zhi Hong Xiu. "Research on Design of Modern Warship Networked Fighting Simulation System." Advanced Materials Research 989-994 (July 2014): 5609–13. http://dx.doi.org/10.4028/www.scientific.net/amr.989-994.5609.

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The simulation system of the overall system structure and function module are established, on the basis of the analysis of designment of modern warship’s networked fighting simulation system, the solutions of network architecture and Agent construct are provided., some key problems are discussed for the realization of a simulation system. There is a certain reference value for the construction and research of warship network fighting simulation system.

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Kłosiński, Michał. "Technologie nostalgii. Analiza retrotopii w grze World of Warships." Postscriptum Polonistyczne 25, no. 1 (July 22, 2020): 272–81. http://dx.doi.org/10.31261/ps_p.2020.25.20.

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The paper presents an analysis of the ORP Błyskawica ship in World of Warships. The study concerns the retrotopian and mythological image of the replica of a real warship created in the game. The analysis and interpretation touch upon both the model of acquiring ships within the framework of playbour and the very idea of faithfully reproducing a historical artefact. The reflection concerns, therefore, virtual technology employed in the service of nostalgia and of dreams, and as a tool for constructing myths about the glorious past in which military technologies developed. For this purpose, the text introduces a new research category, namely a quasi-historical item.

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Goodman, Seymour E. "Deploying Technological Innovation in “Real Time”." Vulcan 7, no. 1 (December 5, 2019): 81–110. http://dx.doi.org/10.1163/22134603-00701007.

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The Industrial Revolution provided the environment and opportunities for the large-scale development and deployment of military technological innovation in “real time,” that is, in time to influence the conduct and outcomes of a major conflict while that conflict was in progress. The case of the Union and Confederate strategies and their implementations during the American Civil War is particularly exemplary because both sides looked to ironclad warships in opposing ways. For the first year of the war each side pursued real-time ironclad warship deployment efforts to influence three different strategic races on a continental scale. Confederate success could have had enormous impacts on the course and outcomes of the war, but by August 1862 the Union had won all three races. Each was won in a different way, each portended how the conduct of the war on water continued, and each provided lessons for both navies to learn. Both sides went forward with revised strategies and renewed vigor to try to build and deploy more than one hundred ironclad warships between them. Over the next three years, the extensive Confederate ironclad program failed in multiple and costly ways to deliver much to the Confederate war effort. The even more extensive Union ironclad program did better primarily by securing what had been won the first year and neutralizing the continuing Confederate ironclad threat, although it failed in other important ways.

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Jia, Zhi Qi, Yu Ling Gou, Xin Jie Han, and Lan Chen. "The Fault Diagnosis for Warship's Power Plant Based on Association Rules." Applied Mechanics and Materials 433-435 (October 2013): 960–63. http://dx.doi.org/10.4028/www.scientific.net/amm.433-435.960.

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Warship's power plant is the core part. The fault diagnosis for it is much more important. With the development of information technology on warship, a large amount of operation and maintenance data has accordingly arisen. Based on the data mining, it can not only directly find relative factors leading to its failure, but also form associated fault diagnosis rules preventing the occurrence and expansion of secondary fault. In actual operation, the engineer can directly judge fault type according to the association rules and take the corresponding solutions. After validation, this method can improve the timeliness and accuracy of fault discovery effectively, and it is also used to fault prediction.

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Odegard, Erik. "Re-examining the Rijksmuseum’s Oldest Ship Model: A 44-Gun Directorate Ship?" Rijksmuseum Bulletin 68, no. 3 (September 15, 2020): 233–51. http://dx.doi.org/10.52476/trb.9672.

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The oldest ship model in the Rijksmuseum’s collection is of a Dutch warship with forty-four cannon. It has been suggested in the past that the model represents a ship that once belonged to one of the urban directorates which provided warships to escort merchant convoys in the first half of the seventeenth century. By combining archival and pictorial information, the article concludes that it is in fact improbable that the model depicts a specific ship belonging to one of the urban directorates. It is more likely that it is of an as yet unknown vessel, perhaps built for export, or that it is a generic model, designed to decorate the premises of the Amsterdam shipyard De Boot, whose owner ultimately donated the model to the museum in the nineteenth century, but which dates back to the sixteen-forties, the period in which the model was built.

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Wang, Huan Jun, Chao Wang, Yong Wei Yue, and Deng Cheng Sun. "Research on the Damage of Warship Structure Subjected to Mixed Explosion Load." Applied Mechanics and Materials 226-228 (November 2012): 855–61. http://dx.doi.org/10.4028/www.scientific.net/amm.226-228.855.

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In order to calculate the damage effect of the surface warships subjected to modern anti-ship missile precisely, the solid modeling technology is applied firstly to simulating the penetration explosion of the anti-ship missile in this paper and initial detonation parameter of typical anti-ship weapon is solved based on mixed explosion theory for typical warhead and the explosion load is simulated by corrected sphere-feeding method. On that basis, material model and physical equation referred to numerical simulation of warship structure damage with the whole circuit described in detail and specifically. Also presented is typical computational example calculated by the general finite element procedure LS-DYNA which indicates qualitative coincidence from the impact effect to response tend between the numerical simulation results and experimental data and the method can be applied to the engineering calculation to analysis the damage characteristic subjected to penetration load which provides the basis for the research of ship blast-resistant.

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SIMS, PHILIP. "Bulging Warships." Naval Engineers Journal 101, no. 6 (November 1989): 24–41. http://dx.doi.org/10.1111/j.1559-3584.1989.tb00880.x.

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Johnson, James A., and Ian H. Wakeling. "Flexible Design as an Acquisition Opportunity." Ciencia y tecnología de buques 11, no. 21 (September 15, 2017): 51. http://dx.doi.org/10.25043/19098642.152.

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Navies around the world adopt different ways of acquiring ships. Using a single large prime contractor, placing individual contracts for design, build and integration, or employing a state-owned shipyard with external support are all procurement options that we see today.‘Flexibility’ in warship design is normally perceived as provision of extra empty space, weight and power, which could be filled with new equipment at some point in the future. However, this idea can be extended to describe a design that achieves true flexibility by exploiting the synergy with different acquisition strategies, adaptability allowing a choice of balanced capability and options for incremental acquisition to control cost and risk profiles. This leads to a design that will deliver a class of warships able to meet the evolving roles and threats throughout its life, whilst not introducing additional risk and cost into the programmes of any modern Navy around the world which adopts it.To achieve this flexibility BMT have created a single base design with multiple configurations; a warship with a functional arrangement that is able to be tailored to meet the specific requirements and budget of each Navy, minimising the initial cost penalty in a programme, and maximising commonality. It also allows for modular construction techniques which not only apply to single yard construction, including small and medium shipyards, but enables blocks to be built in several shipyards.This paper will describe the underlying considerations behind this flexibility, including incremental acquisition as a cost mitigation in procurement programmes, and the different potential partnership models between shipyard, designer and integrator in effective acquisition programmes which work to the strengths of each party.

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Wang, Gong Xian, and Yong Hu. "Advances in Shock Testing Facilities for Naval Shipboard Equipments." Advanced Materials Research 301-303 (July 2011): 1220–25. http://dx.doi.org/10.4028/www.scientific.net/amr.301-303.1220.

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The capability to withstand non-contact underwater explosions (UNDEX) is an important aspect to be emphasized in the design of modern warships, and shock testing is one of the efficient methods to qualify the ability. A brief history on the research of shock testing of naval shipboard equipment as well as major means in evaluating anti-shock performance of warship equipment is introduced first in this paper. Three prevailing shock test methods: UNDEX testing, virtual shock trial and land-based test with shock test machines are presented with the focus on the advances in shock test machines in US and Europe. Comparison of current shock testing facilities is also given. Moreover, some new concepts of shock test machines are reviewed as well, and three major directions of the development of shock test machines are concluded. The first trend is that shock testing machines are required to generate positive and negative shock pulse to simulate real UNDEX environment made up of shock wave followed by bubble pulse and structural whipping. The second is that shock test machines can test heavy equipments, and the last is that shock pulses can be controlled and customized conveniently.

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Solski, Jan Jakub. "New Russian Legislative Approaches and Navigational Rights within the Northern Sea Route." Yearbook of Polar Law Online 12, no. 1 (December 13, 2021): 228–50. http://dx.doi.org/10.1163/22116427_012010015.

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The regulation of foreign navigation in the Northern Sea Route (NSR) has been dominated by the rules of international law applicable to merchant ships only. Neither the domestic set of rules of navigation on the NSR, based on Article 234 of UNCLOS nor the Polar Code applies to State-owned vessels. While the application of Article 234 has so far let Russia evade discussion on the navigational rights, one can expect an increasing spotlight on this issue. In response to the recent crossing of the NSR by a French warship, as well as the voices from the United States indicating similar plans, Russia has signalled the intention to adopt more stringent rules for passage of warships, potentially including the requirement of prior notification and pilotage. The aim of the paper is twofold. First, examine the navigational rights as applicable in the NSR. As such, the paper will discuss historical State practice and relevant international law to demonstrate, among other things, that the enclosure with straight baselines preserved innocent passage in all Russian Arctic straits. Second, examine the international legality of prior notification and pilotage in the context of the applicable navigational rights on the NSR.

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Dmitiriev, Vladimir. "The Sasanian Warships." Вестник древней истории 78, no. 4 (2018): 909–23. http://dx.doi.org/10.31857/s032103910002909-2.

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Raffanelli, Ivo, Jakša Mišković, and Ivica Pavić. "Concepts of Recognition of Seagoing Service and Certificates to Crew Members of Warships in Accordance with STCW Convention." Transactions on Maritime Science 7, no. 02 (October 22, 2018): 199–209. http://dx.doi.org/10.7225/toms.v07.n02.010.

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The paper analyzes the concepts of application of the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers, 1978, with amendments 2010 (STCW Convention), in the segment of recognition of seagoing service and certification for crew members of warships. Although the STCW Convention does not apply directly to warships, the Parties have the right to continue to recognize seagoing service and certificates of the crew members of their warships. There are different concepts of solutions related to this issue. The paper particularly analyzes legal framework under the STCW Convention. Concepts are compared in several NATO member states through a review and analysis of legal solutions and available training programs from these countries. Similarities and differences of the analyzed concepts are identified. Also, a general model of application in the national frameworks is developed. The authors conclude that it is possible to talk about the principle according to which seagoing service and certificates of the crew members of warships acquired during training and service on warships has been recognized with the fulfilment of the appropriate conditions prescribed by the Parties.

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Braidwood, Iain, and Geoff Lofthouse. "Developments in Bulb Flats and Other Hot Rolled Special Steel Profiles for Advancing Commercial and Naval Shipbuilding in the U.S." Journal of Ship Production 16, no. 04 (November 1, 2000): 193–206. http://dx.doi.org/10.5957/jsp.2000.16.4.193.

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Special steel profiles are increasingly being used for commercial and warship construction to reduce production and life cycle costs. In particular, bulb flats (Holland profiles), manufactured by special profiles businesses, are increasingly being used for plate stiffening in warships and naval auxiliaries. Examples are the UK's Type 23 Frigates, the LPH HMS Ocean, Watson Class Sealift ships and the Dutch LPD HrMs Rotterdam, as well as, looking to the future, the UK Type 45 Destroyer. Some comparison will be made of naval vessel construction on both sides of the Atlantic, particularly looking at the advantages that bulb flats can bring to naval vessel construction. This paper will discuss the challenge of introducing new shapes, examine the state of the art in the production of special steel shapes and describe metallurgical developments that enable the delivery of shapes with required structural performance and suitability for production. Shipbuilding developments such as laser welding are being addressed with a view to the manufacture of special profiles, particularly where tolerance and chemical composition issues need to be addressed. Future lightweight vessel construction may involve a mix of aluminium, steel and composite structures. Special profiles can be developed to assist in the joining of these different construction materials.

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Abdul Rahman, Antariksa, Bambang Semedi, and Slamet Wahyudi. "The conceptual of re-design propulsion system and ship electricity management to reduce waste emission." Global Journal of Engineering and Technology Advances 6, no. 2 (February 28, 2021): 104–13. http://dx.doi.org/10.30574/gjeta.2021.6.2.0021.

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Climate change is a serious threat to the environment and socioeconomic globally. Climate change is caused by natural processes and due to human activities that have resulted in long-term climate fluctuations and even globally over the past few decades, the climate has experienced a fairly rapid rise in average temperatures. Climate change is mainly caused due to ozone depletion which results in changes in greenhouse effect conditions. The International Maritime Organization (IMO) has adopted standards to reduce sulfur pollution from ships. The majority of naval warships today use conventional mechanical propulsion systems where the power from the main propulsion is transmitted to the propeller through gearboxes. The ships owned by the Navy almost all still use conventional thrust systems with diesel engine starters. With a conventional support system. The latest innovation in the support system that has been carried out, namely on the United States Navy warship TAKE-1 (the destroyer ship), whereby changing the support system from conventional to electricity with the concept of Integrated Fully Electric Propulsion (IFEP) can reduce fuel use by 10% to 25%. IFEP application if applied to ships of the Navy, will obtain a very large benefit in overcoming environmental problems namely reducing air pollution.

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30

Ton, Anh Duc. "Innocent Passage of Warships." Asia-Pacific Journal of Ocean Law and Policy 1, no. 2 (December 10, 2016): 210–43. http://dx.doi.org/10.1163/24519391-00102006.

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The United Nations Convention on the Law of the Sea (losc) is well known as the “Constitution for the Oceans”; however, the passage of foreign warships through the territorial sea of a coastal State is not clearly addressed. All East Asian littoral States (except North Korea and Cambodia) are parties to the losc but their practices regarding the innocent passage of warships are different. This article provides an analysis of the innocent passage regime of the losc, the practice of East Asian littoral States regarding the innocent passage of warships as well as factors that have influenced the trends in their practices.

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HOPE, JAN PAUL, and VERNON E. STORTZ. "WARSHIPS AND COST CONSTRAINTS." Naval Engineers Journal 98, no. 2 (March 1986): 41–52. http://dx.doi.org/10.1111/j.1559-3584.1986.tb00630.x.

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brown, Richard, and Jane graves. "LEARNING ABOUT TUDOR WARSHIPS!" Primary Teacher Update 2012, no. 4 (January 2012): 44. http://dx.doi.org/10.12968/prtu.2012.1.4.45.

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33

Ward, Cheryl. "Book Review: Roman Warships." International Journal of Maritime History 23, no. 2 (December 2011): 433–34. http://dx.doi.org/10.1177/084387141102300262.

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34

Edwards, J. R. "THE COALING OF WARSHIPS." Journal of the American Society for Naval Engineers 13, no. 1 (March 18, 2009): 1–49. http://dx.doi.org/10.1111/j.1559-3584.1901.tb03371.x.

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Oram, H. J. "PROPELLING MACHINERY OF WARSHIPS*." Journal of the American Society for Naval Engineers 22, no. 1 (March 18, 2009): 57–82. http://dx.doi.org/10.1111/j.1559-3584.1910.tb04543.x.

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36

Blakey, R. G. "Power electronics in warships." Power Engineering Journal 7, no. 2 (1993): 65. http://dx.doi.org/10.1049/pe:19930016.

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Soliani, Engineer Nabor. "THE FUTURE OF WARSHIPS*." Journal of the American Society for Naval Engineers 33, no. 3 (March 18, 2009): 541–51. http://dx.doi.org/10.1111/j.1559-3584.1921.tb04912.x.

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38

Franckx, Erik. "Innocent passage of warships." Marine Policy 14, no. 6 (November 1990): 484–90. http://dx.doi.org/10.1016/0308-597x(90)90018-m.

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39

Heitz, Jesse A. "British Reaction to American Civil War Ironclads." Vulcan 1, no. 1 (2013): 56–69. http://dx.doi.org/10.1163/22134603-00101004.

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By the 1840’s the era of the wooden ship of the line was coming to a close. As early as the 1820’s and 1830’s, ships of war were outfitted with increasingly heavy guns. Naval guns such as the increasingly popular 68 pounder could quickly damage the best wooden hulled ships of the line. Yet, by the 1840’s, explosive shells were in use by the British, French, and Imperial Russian navies. It was the explosive shell that could with great ease, cripple a standard wooden hulled warship, this truth was exposed at the Battle of Sinope in 1853. For this reason, warships had to be armored. By 1856, Great Britain drafted a design for an armored corvette. In 1857, France began construction on the first ocean going ironclad, La Gloire, which was launched in 1859. This development quickly caused Great Britain to begin construction on HMS Warrior and HMS Black Prince. By the time HMS Warrior was commissioned in 1861, the Royal Navy had decided that its entire battle fleet needed to be armored. While the British and the French naval arms race was intensifying, the United States was entering into its greatest crisis, the United States Civil War. After the outbreak of the Civil War, the majority of the United States Navy remained loyal to the Union. The Confederacy, therefore, gained inspiration from the ironclads across the Atlantic, quickly obtaining its own ironclads. CSS Manassas was the first to enter service, but was eventually brought down by a hail of Union broadside fire. The CSS Virginia, however, made an impact. Meanwhile, the Union began stockpiling City Class ironclads and in 1862, the USS Monitor was completed. After the veritable stalemate between the CSS Virginia and USS Monitor, the Union utilized its superior production capabilities to mass produce ironclads and enter them into service in the Union Navy. As the Union began armoring its increasingly large navy, the world’s foremost naval power certainly took notice. Therefore, this paper will utilize British newspapers, government documents, Royal Naval Reviews, and various personal documents from the 1860’s in order to examine the British public and naval reaction to the Union buildup of ironclad warships.

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40

Sarjito, Aris. "PT Pelindo Marine Service: An Alternative Strategy for Maintenance of the Indonesian Navy’s Warships." Mediterranean Journal of Social Sciences 11, no. 4 (July 10, 2020): 27. http://dx.doi.org/10.36941/mjss-2020-0038.

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The sea defense strategy, and concepts related to maritime strategy, relating to the overall strategy for achieving victory at sea. In securing the sea, the navy is very dependent on the main weapons system, especially warships. The Indonesian Navy in carrying out its duties rests on the strength of the IFWS (Integrated Fleet Weapons System): Warship, Aircraft, Marines, and Base. The four components of the IFWS are always maintained in combat readiness. One of the ship maintenance facilities in Surabaya that has the potential to be able to carry out maintenance of Navy ships is PT Pelindo Marine Service in Surabaya. This research uses descriptive qualitative approach. Logistics management theory and SWOT analysis are used by researchers as an analysis tool. The results of this study are the logistics management of PT PMS has ability to maintain Navy ships to support sea defense. Constraints faced by PT PMS include: (1) High sedimentation; (2) Inlet flow is crowded, narrow and shallow; and (4) Small dock capacity. The strategies developed by PT PMS to overcome obstacles in the maintenance of the navy’s ships: (1) Implement efficiency in HR, methods, budgets, and infrastructure to maximize profits; (2) Cooperation with similar companies; (3) Investing: dredging, increasing the capacity of the dockyard, and firefighting equipment, and damage control (controlling losses) so it does not get worse than expected.

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Sims, Philip. "U.S. Navy World War II War Damage Reports." Marine Technology Society Journal 46, no. 6 (November 1, 2012): 49–60. http://dx.doi.org/10.4031/mtsj.46.6.3.

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AbstractThe damaged and sunken ships of Pearl Harbor contained information on the response of ships and their damage control teams to modern weapons. As they were raised to be repaired, the physical evidence of damaged areas was carefully recorded. The Navy’s ship design organization, the Bureau of Ships (Buships), combined the physical evidence with crew action reports to determine what worked and what did not. Buships published the results in almost 70 War Damage Reports, which were illustrated with photographs and newly prepared extent-of-damage drawings. This paper is a high-level introduction to that massive body of work.The customers of the reports were the damage control schools, the operational fleet (needing to ruthlessly remove flammable materials), the naval repair yards (installing ship alterations to overcome deficiencies), and the designers of new construction warships. The report series was continued covering ships damaged or lost in the Pacific battles. Modern warship features that are now thought of as “good practice,” such as ring fire mains with one line high and the other low on the opposite side of the ship, are a result of “lessons learned” from the war damage surveys. The paper compares the 1938 design Iowa class battleships and the war design Des Moines class heavy cruisers, which incorporated the lessons learned. The differences in compartmentation and damage control fittings of the two classes are described.

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Mikielewicz, Dariusz, and Paweł Szymański. "Capillary Pumped Loop as a Tool for Collecting Large Heat Fluxes from Electronic Devices On Warships." Polish Maritime Research 24, no. 1 (March 1, 2017): 72–80. http://dx.doi.org/10.1515/pomr-2017-0009.

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Abstract The combat potential of future warships will be directly related to the use of modern electronic devices being parts of advanced systems, such as, for instance, radar systems, fire aiming systems, fire detection systems, electric drive systems, and even electronic and radio-electronic weaponry, railguns and lasers, installed on these warships. The capacity and functionality of these devices is continually increasing, at decreasing mass and dimensions, which results in higher power consumption. Heat collection becomes a growing problem in operation of these devices. The paper presents a concept of the use of the CPL (Capillary Pumped Loop) cycle for passive heat collection from precise electronic devices used on warships. It also includes the description of the experimental rig and discussion of the results of laboratory tests performed on this rig and confirmed using the mathematical model developed by the authors.

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43

Keane, Robert G., Howard Fireman, and Daniel W. Billingsley. "Leading a Sea Change in Naval Ship Design: Toward Collaborative Product Development." Journal of Ship Production 23, no. 02 (May 1, 2007): 53–71. http://dx.doi.org/10.5957/jsp.2007.23.2.53.

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In October 1989, the Naval Sea Systems Command (NAVSEA) conducted the Ship Design for Producibility Workshop with broad participation from the Navy, shipbuilders, ship design agents, and academia. The Workshop was one of NAVSEA's first Total Quality Leadership (TQL) initiatives and was subsequently expanded by NAVSEA's Chief Engineer (CHENG) and the Deputy Assistant Secretary of the Navy (DASN) for Ships into the Ship Design, Acquisition, and Construction (DAC) Process Improvement Project. In addition, the National Shipbuilding Research Program (NSRP) initiated a number of thrusts in concurrent engineering and increased throughput. The authors describe one of these major process improvement initiatives, NAVSEA's 3-D "Product Model" Strategy to extend throughout the enterprise-wide process of warship development a primary focus on the bridge between ship design and shipbuilding. The Workshop and subsequent process improvement initiatives have had a profound impact on the naval ship design process. Yet, as reported to Congress in 2002 by the Secretary of the Navy, the unbudgeted cost growth and increased cycle times for detail design of new warships have "reached an untenable level." This necessitated the October 2004 ASN (RDA) policy memorandum on integrated digital data environment (IDDE). To realize transformational innovations in our ship designs, as well as transformational innovations in the entire warship development process, the National Naval Responsibility in Naval Engineering (NNRNE) was recently established by the Navy. To support NNR-NE the Office of Naval Research (ONR) and the Naval Sea Systems Command (NAVSEA) created the Center for Innovation in Ship Design (CISD). A summary of some recent CISD Innovation Cells and how CISD can contribute to breaking down the existing organizational cultures and institutionalizing a collaborative product development environment are also discussed. As we begin a new century, it is appropriate that our naval ship design and shipbuilding community review its progress, look at the crosscut principles of leading change, determine what it takes to bring about dramatic cultural transformation, and discuss the critical need for Navy, shipbuilder, design agent, and academia leadership to continue developing a new collaborative product development environment that fosters a sea change in the whole naval ship development process.

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44

Brady, Robert F. "Fouling-release Coatings for Warships." Defence Science Journal 55, no. 1 (January 1, 2005): 75–81. http://dx.doi.org/10.14429/dsj.55.1971.

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45

MURRAY, WILLIAM M. "Roman Warships - By Michael Pitassi." International Journal of Nautical Archaeology 41, no. 1 (February 17, 2012): 212–13. http://dx.doi.org/10.1111/j.1095-9270.2011.00333_6.x.

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46

Woolmer, Mark. "‘Ornamental’ Horns on Phoenician Warships." Levant 44, no. 2 (November 2012): 238–52. http://dx.doi.org/10.1179/0075891412z.00000000010.

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47

Ashley Roach, J. "Sunken warships and military aircraft." Marine Policy 20, no. 4 (July 1996): 351–54. http://dx.doi.org/10.1016/0308-597x(96)00016-4.

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48

Dodson, Aidan. "Warship 2020." Mariner's Mirror 107, no. 1 (January 2, 2021): 122–23. http://dx.doi.org/10.1080/00253359.2020.1820744.

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49

Jurnal, Redaksi Tim. "SISTEM KELISTRIKAN PADA KAPAL PERANG TNI AL KELAS FROSCH KRI TELUK CELUKAN BAWANG 532." Energi & Kelistrikan 9, no. 1 (November 26, 2018): 60–69. http://dx.doi.org/10.33322/energi.v9i1.59.

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A warship has its own power plant which directly supply and distribute to meet its electrical power demand. On a warship which operated by Satuan Amphibi Komando Armada Republik Indonesia Kawasan Barat TNI AL, KRI Teluk Celukan Bawang 532 has 4 diesel generators located in engine room. This 4 diesel generators have a parallel connection and alternately work with the change of electrical load. The change of electric load based on a warship operating conditions. Power supply on the warship needs to generate and maintain a constant electric voltage and frequency, as well as a sufficient power when a warship is docking, before sailing and sailing. A calculation of elecric loads is very important to choose the capacity and the number of generator used with limitedspace on a warship.

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50

Zhou, Zeyang, and Jun Huang. "Dynamic Scattering Approach for Solving the Radar Cross-Section of the Warship under Complex Motion Conditions." Photonics 7, no. 3 (August 26, 2020): 64. http://dx.doi.org/10.3390/photonics7030064.

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To obtain the electromagnetic scattering characteristics of the warship under complex motion conditions, a dynamic scattering approach (DSA) based on physical optics and physical theory of diffraction is presented. The observation angles, turret rotation, hull attitude changes and sea wave models are carefully studied and discussed. The research results show that the pitching and rolling angles have a large effect on the radar cross-section (RCS) of the warship. Turret movement has a greater impact on its own RCS but less impact on the warship. The RCS of the warship varies greatly at various azimuths and elevations. Different sea surface models have a greater impact on the lateral RCS of the warship. The DSA is effective and efficient to study the dynamic RCS of the warship under complex motion conditions.

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Journal articles on the topic 'Warsips'

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