Results 41 to 50 of about 149,579 (300)
Tiltrotor CFD part I: validation [PDF]
, 2017 This paper presents performance analyses of the model-scale ERICA and TILTAERO tiltrotors and of the full-scale XV-15 rotor with high-fidelity computational fluids dynamics.
Barakos, George N. +2 more
core +1 more source
Current Tracking Adaptive Control of Brushless DC Motors
International Journal of Adaptive Control and Signal Processing, EarlyView.In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García +3 more
wiley +1 more source
The analogy method for the description of external characteristic of inner combustion engines [PDF]
Transport, 2004 The original data for the evaluation of vehicle motion dynamics is external characteristic of its engine, which consists of three parameters: torque, power and specific fuel consumption.
A. Stonys, J. Sapragonas, S. Mockus
doaj +3 more sources
Preliminary design of rim-electric driven propeller and effect factor analysis on cogging torque
Zhongguo Jianchuan Yanjiu, 2018 [Objectives] Cogging torque has an important influence on the blade vibration of a Rim-Electric Driven Propeller (REDP). In order to investigate a method for reducing the cogging torque of REDP, this paper analyzes the combination of slot number, pole ...
YU Ping, ZHOU Junwei, ZHANG Guozheng
doaj +1 more source
Simulation of wind turbine wake interaction using the vorticity transport model [PDF]
, 2010 The aerodynamic interactions that can occur within a wind farm can result in the constituent turbines generating a lower power output than would be possible if each of the turbines were operated in isolation.
Ahlin +15 more
core +1 more source
Advanced Engineering Materials, EarlyView.In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart +3 more
wiley +1 more source
Performance Characteristics of an Orthopter-Type Vertical Axis Wind Turbine in Shear Flows
Applied Sciences, 2020 To properly conduct a micro-siting of an orthopter-type vertical axis wind turbine (O-VAWT) in the built environment, this study investigated the effects of horizontal shear flow on the power performance characteristics of an O-VAWT by performing wind ...
Rudi Purwo Wijayanto +2 more
doaj +1 more source
Micro-macro transition and simplified contact models for wet granular materials [PDF]
, 2015 Wet granular materials in a quasi-static steady state shear flow have been studied with discrete particle simulations. Macroscopic quantities, consistent with the conservation laws of continuum theory, are obtained by time averaging and spatial coarse ...
Luding, Stefan +3 more
core +3 more sources
Advanced Engineering Materials, EarlyView.Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente +3 more
wiley +1 more source
Journal of Marine Science and EngineeringWave energy converters (WECs) have significant potential to meet the increasing energy demands and using an oscillating water column (OWC) is one of the most reliable ways to implement them.
Hyeongyo Chae, Chan Roh
doaj +1 more source