Results 11 to 20 of about 130,331 (289)
Perancangan Propeler Self-Propelled Barge
Jurnal Teknik ITS, 2013 Makalah ini menyampaikan suatu penelitian tentang perancangan propeler yang optimal beserta pemilihan daya mesin yang efisien pada self-propelled barge dengan memperhitungkan besarnya nilai tahanan dari barge tersebut.
Billy Teguh kurniawan, Eko Budi Djatmiko
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Rubber Chemistry and Technology, 2019 ABSTRACT Solid propellants are energetic materials used to launch and propel rockets and missiles. Although their history dates to the use of black powder more than two millennia ago, greater performance demands and the need for “insensitive munitions” that are resistant to accidental ignition have driven much research and development over the ...
Mason, B.P., Roland, C.M.
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Indian Journal of Plastic Surgery, 2022 AbstractA propeller flap is an islanded flap that reaches the recipient site through an axial rotation around its vascular axis. The degree of rotation varies from 90 degrees to 180 degrees. It is a highly reliable local reconstructive option. These flaps are simple, single-stage, easy to harvest, and not constrained by routine length-to-width ratios ...
Nikhil Panse, Ankur Karanjkar
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Journal of Marine Science and Engineering, 2022 This study presented the results of a computational study of cavitating flows of a marine propeller with energy saving equalizing ducts. The main purpose of the study was to estimate the cavitating flows around a propeller with a duct, and to investigate
Joseph Mwangi Ng’aru, Sunho Park
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New Surface Modification Method of Bio-Titanium Alloy by EB Polishing
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2008 A new surface modification for bio-titanium alloy products by electron beam (EB) polishing is proposed. In this EB polishing method, high energy density EB can be irradiated without concentrating the beam. Therefore, large-area EB with a maximum diameter
Akira OKADA +4 more
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Numerical analysis of propeller-excited plate vibrations
AIP Advances, 2021 Intense vibrations excited by a propeller worsen the structural reliability of a ship. In this study, a ship hull is modeled as a simple rectangular plate to study propeller excitation vibrations. The interaction between a rectangular plate and propeller
Weipeng Zhang +5 more
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Coupling Effects on Distributed Multi-Propeller Channel Wing at Low Speed Condition
Energies, 2022 Channel wing is a propeller-coupling layout that has good low-speed performance and S/VTOL potential. Focused on the application of this layout at the S/VTOL stage, this paper attempts to find the interaction mechanism for the distributed propeller ...
Junmin Zhao +3 more
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Optimization Design of New Bionic Propeller
Shanghai Jiaotong Daxue xuebao, 2023 A novel method for optimal design of hydrodynamic performance of bionic propeller with a deformable leading edge is proposed. Based on the bionics principle and method of parameterized modeling, the fore-fin concave-convex structure of humpback whales is
WU Chunxiao, LU Yu, LIU Shewen, GU Zhuhao, SHAO Siyu, SHAO Wu, LI Chuang
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Determining Actuator Requirements for Cyclic Varying Pitch Propeller for Ships
Energies, 2021 In marine applications, a cyclic varying pitch (CVP) propeller is a propeller in which the propeller blade can be cyclic-pitched. This cyclic pitching of the propeller blades is used to adapt to the local flow conditions in the non-uniform wake field ...
Uffe Sjølund Freiberg +3 more
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Machines, 2022 Small vessels operating in coastal waters are susceptible to propeller failure because of the entanglement of marine debris. Secondary accidents such as the injury of divers may also occur when removing entangling material.
Antony John Nyongesa +8 more
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