Results 11 to 20 of about 22,979 (144)
Applied Sciences, 2021 When the ice-class propeller sails in an icy sea, it is affected by external factors such as water, ice, and cavitation, and the process of mutual interference is extremely complicated. In order to study the influence of water and cavitation on propeller
Pei Xu, Chao Wang, Liyu Ye
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Cavitation and Induced Excitation Force of Ice-Class Propeller Blocked by Ice
Journal of Marine Science and Engineering, 2021 The presence of broken ice in the flow field around a propeller causes severe blade erosion, shafting, and hull vibration. This study investigates the performance of the propeller of a ship sailing in the polar regions under the propeller–ice non-contact
Pei Xu +5 more
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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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Impact of a digital health intervention on asthma resource utilization
World Allergy Organization Journal, 2018 Digital health interventions have been associated with reduced rescue inhaler use and improved controller medication adherence. This quality improvement project assessed the benefit of these interventions on asthma-related healthcare utilizations ...
Rajan Merchant +8 more
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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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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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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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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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