Results 91 to 100 of about 93,848 (266)

Development of Vertical Wind Turbine Blades Using 4D Printing of Composites

open access: yesPolymer Composites, EarlyView.
Vertical axis wind turbine: White blade: Commercial. Black blade: Composite. ABSTRACT This paper presents the procedure to make vertical wind turbine blades using the technique of 4D printing of composites (4DPC). The blades are made using carbon/epoxy composite materials with a fiber volume fraction of about 60%.
Emad Fakhimi, Suong Van Hoa
wiley   +1 more source

Analisis Performansi Turbin Angin Poros Horisontal Model Double Rotor Contra Rotating Dengan Posisi Rotor Saling Berhimpitan [PDF]

open access: yes, 2015
The contra rotating wind turbine is a horizontal axis turbine which has two shaft rotating in opposite directions on the same axis, and it can work at low wind speeds. In general, the performance of the wind turbine are affected by several factors, which
Bere, F. (Fredrikus)   +2 more
core  

Mode I Fracture Toughness and Compressive Properties of Glass Fibre Reinforced Acrylic Matrix Composites Before and After Seawater Ageing

open access: yesPolymer Composites, EarlyView.
Mode I Fracture Toughness Test of Dry and Seawater Aged Glass Fibre/Acrylic Matrix Composites. ABSTRACT Acrylic thermoplastic composites are emerging as a promising alternative for tidal and offshore wind turbine blades and marine applications, offering comparable structural performance and manufacturing process with improved end‐of‐life recyclability ...
Nagappa Siddgonde   +3 more
wiley   +1 more source

Research on the Design Method of 3D Blade Profiles for Stator and Rotator of Turbodrill

open access: yesShiyou jixie
In order to study the hydraulic performance of turbine 3D blade profile,a theoretical molding method for turbine 3D blade profile was proposed based on the equal circulation method,and a calculation method for the characteristic parameters of the turbine
Feng Ding, Shao Xue, Wang Peng, Shi Lei
doaj  

ANALYSIS OF DYNAMIC LOAD STRENGTH OF WIND TURBINE ROOT BOLT UNDER TURBULENCE MODEL

open access: yesJixie qiangdu, 2021
As an important connecting and fastening part of wind turbine blade,blade root bolt plays an important role in the operation of wind turbine. In this paper,the connecting bolt between blade and pitch bearing of 2 MW wind turbine is taken as the research ...
HAN Wen, CHEN ChangZheng
doaj  

Neural Network‐Based Adaptive Super‐Twisting Control for Perturbed Nonlinear Systems: Lyapunov Design

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT A newly developed robust control strategy based on an adaptive neural network (ANN) estimator performed in concert with adaptive super‐twisting (ASTW) control is presented. The proposed adaptive robust control algorithm is applied to a class of perturbed nonlinear systems and features a significantly decreased control gain with respect to the ...
Mohammad Javad Mirzaei   +3 more
wiley   +1 more source

Turbine blade tip durability analysis [PDF]

open access: yes
An air-cooled turbine blade from an aircraft gas turbine engine chosen for its history of cracking was subjected to advanced analytical and life-prediction techniques.
Laflen, J. H.   +2 more
core   +1 more source

The scale matters: A review on stimuli‐responsive microrobots categorized by scale for biomedical applications

open access: yesResponsive Materials, EarlyView.
We systematically summarize how each scale dictates fundamental choices in design feature, manufacturing technology, driving mechanism, and control strategy, which are inherently governed by scale‐dominated physical principles. Furthermore, the application of scale‐determined operation modes of microrobots across different stages of medical ...
Hang Yin   +3 more
wiley   +1 more source

STUDI PENGARUH JUMLAH SUDU TERHADAP UNJUK KERJA SAVONIUS WATER TURBINE PADA ALIRAN AIR DALAM PIPA

open access: yesRotor: Jurnal Ilmiah Teknik Mesin, 2016
Rainwater, flowed through a pipe, has potential energy that can be used to drive a turbine coupled with generator. Savonius water turbine with horizontal axis is used here as the turbine.
Imron Hamzah   +2 more
doaj  

A simulation of film cooling in the leading edge region of a turbine blade (trench effect on film effectiveness from cylinder in crossflow) [PDF]

open access: yes, 2012
Film cooling is one of the cooling system techniques applied to the turbine blade. Gas turbine use film cooling technique to protect turbine blade from expose directly to a hot gas to avoid the blade from defect.
Pairan, Mohamad Rasidi
core  

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