Results 101 to 110 of about 49,451 (311)
Journal of Applied Science and EngineeringThe posture of water flow velocity generated by the rotation of the ship’s propeller needs to be studied to see the performance of the propeller and the potential for scouring that the seabed can cause.
Abdul Kadir +13 more
doaj +1 more source
Advanced Materials, EarlyView.Inspired by the octopus and the golden wheel spider, soft robots with liquid crystal elastomer arc fibers as appendages are fabricated to transcend surface constraints through an elevated center of mass and minimal contact footprints. By leveraging curvature‐encoded deformation‐recovery cycles, these robots exhibit contractile, torsional, and flexural ...
Jong Bin Kim +5 more
wiley +1 more source
Numerical simulation on bearing force of propeller for machining errors in non-uniform inflow
Zhongguo Jianchuan Yanjiu, 2017 In order to study the bearing force caused by the machining errors of composite material propeller in non-uniform flow, the propeller was computed by changing the machining error of the propeller in six degrees of freedom, in which the main blade ...
YU Anbin, YE Jinming, ZHANG Kaiqi
doaj +1 more source
Advanced Materials Technologies, EarlyView.Waterborne polyurethane/graphene formulations are developed as piezoresistive coatings on glass fabric to enable flexible strain sensing. The graphene‐enabled conductive network provides a stable electromechanical response under cyclic compression. The coating demonstrates reliable pressure‐dependent resistance changes, highlighting its potential for ...
Vishnu Vijayan Pillai +8 more
wiley +1 more source
Numerical Study of the Scale Effect on Flow Around a Propeller Using the CFD Method
Polish Maritime ResearchThis paper presents an investigation of the scale effect on the flow around a propeller using the CFD method. The differences in the numerical setup and the results obtained for the characteristics of an open water propeller are described and analysed in
Van-Vu Huynh +4 more
doaj +1 more source
Topological optimization of a ducted propeller of UAV
Авіаційно-космічна техніка та технологіяThe subject of this study is the minimization of the duct mass for a ducted propeller of UAV. The object of this study is a two-bladed ducted quadcopter propeller. The peripheral diameter of the propeller is 128 mm, and the hood is 2 mm thick.
Anton Balalaiev +4 more
doaj +1 more source
Application of Vortex Flow Model in Propeller-Stator System Design and Analysis
Polish Maritime Research, 2018 The paper covers basics of the vortex model used for propeller-stator systems. The outline of the design algorithm is given and the results of its application are shown.
Król Przemysław, Bugalski Tomasz
doaj +1 more source
Modelling a Propeller Using Force and Mass Rate Density Fields
Journal of Marine Science and Engineering, 2018 A method to replace a propeller by force and mass rate density fields has been developed. The force of the propeller on the flow is calculated using a boundary element method (BEM) program and used to generate the force and mass rate fields in a Reynolds-
David Hally
doaj +1 more source
The Propulsion Committee: final report and recommendations to the 25th ITTC
, 1970 Details the investigation and findings of the 25th ITTC Propulsion Committee over the period 2005-2008. Tasks were as follows:1. Update the state-of-the-art for propulsion systems emphasizing developments since the 2005 ITTC conference.2.
Kim, K. +8 more
core
Numerical study on flow around modern ship hulls with rudder-propeller interactions
, 2019 Reducing the fuel consumption of ships presents both economic and environmental gains. Although in the past decades, extensive studies were carried out on the flow around ship hull, it is still difficult to calculate the flow around the hull while ...
Naz, N.
core +1 more source