Results 31 to 40 of about 4,033,948 (250)
Mechanical Engineering Journal, 2016 A magnetically levitated double-layered cylinder has been developed for windage loss reduction of the high speed spindle that is rotating inside the inner cylinder.
Junichi ASAMA +2 more
doaj +1 more source
Nihon Kikai Gakkai ronbunshu, 2015 Windage loss may become more than 10% of all losses when large sized gearing runs fast. In order to reduce the windage loss, it needs to vacuum a gear box because it is proportional to the density of ambient air. The study proposes a helical gearing unit
Shigeki MATSUMURA +4 more
doaj +1 more source
Hydraulic Analysis of a Reversible Fluid Coupling [PDF]
, 2000 This paper presents a hydraulic analysis of a fluid coupling which is designed to operate either in a forward or reverse mode when a set of turning vanes are respectively withdrawn or inserted into the flow between the driving and driven rotors.
Brennen, Christopher E. +2 more
core +1 more source
ISO efficiency curves of a two-phase hybrid stepping motor [PDF]
, 2010 Stepping motors are used in numerous applications because of their low manufacturing cost and simple speed control. It is well known that their energetic efficiency is low but actual values are typically not available.
Cottyn, Johannes +8 more
core +1 more source
Engineering Science and Technology, an International Journal, 2023 The 4th industrial revolution requires the tracking and optimization of energy consumption using an intelligent energy management system (IEMS). Such a system needs accurate real-time energy information to operate industrial machines, where Induction ...
Adamou Amadou Adamou, Chakib Alaoui
doaj +1 more source
Baseline Experimental Results on the Effect of Oil Temperature on Shrouded Meshed Spur Gear Windage Power Loss [PDF]
Rotorcraft gearbox efficiencies are reduced at increased surface speeds due to viscous and impingement drag on the gear teeth. This windage power loss can affect overall mission range, payload, and frequency of transmission maintenance.
Delgado, Irebert R. +1 more
core +2 more sources
Wind tunnel and numerical study of a small vertical axis wind turbine [PDF]
, 2009 This paper presents a combined experimental and computational study into the aerodynamics and performance of a small scale vertical axis wind turbine (VAWT).
Berg +8 more
core +1 more source
Superconducting Bearing Design for Outer Rotor Flywheel Using Lumped Parameter Techniques [PDF]
, 2014 This paper describes the application of lumped parameter modeling techniques to designing high temperature superconducting bearings for outer-rotor flywheel energy storage systems.
Chen, D, Longoria, R. G. +2 more
core +1 more source
Journal of Advances in Modeling Earth Systems, Volume 18, Issue 2, February 2026.Abstract Understanding the transport pathways of floating material at the ocean surface is important to improve our knowledge on surface circulation and assessing its environmental impacts. Numerical experiments through Lagrangian particle simulations are widely used to investigate the dispersion of floating material, typically relying on velocity ...
Laura Gómez‐Navarro +8 more
wiley +1 more source
Prediction of windage power loss in alternators [PDF]
, 1971 Simplified equations and constants, based on laminar and turbulent flow theory between parallel plates, estimate windage loss in rotating electrical machinery.
Vrancik, J. E.
core +1 more source