Results 41 to 50 of about 1,014,229 (401)

Investigation of Microstructure and Mechanical Properties of the Repaired Precipitation-Strengthened Ni-Based Superalloy via Laser Melting Deposition

open access: yesMetals, 2023
In this study, a typical γ′ phase precipitation-strengthened Ni-based superalloy DZ411 was repaired using an LMD-based repairing technique with an IN738LC superalloy, and crack-free samples were acquired.
Wengao Yan   +4 more
doaj   +1 more source

Design and testing of a contra-rotating tidal current turbine [PDF]

open access: yes, 2005
A contra-rotating marine current turbine has a number of attractive features: nearzero reactive torque on the support structure, near-zero swirl in the wake, and high relative inter-rotor rotational speeds.
Clarke, J. A.   +3 more
core   +4 more sources

Research Progress in Environmental Barrier Coatings of SiC Ceramic Matrix Composites

open access: yesCailiao gongcheng, 2018
SiC matrix ceramic composites (CMC-SiC) are considered as the potential primary structural materials in advanced gas turbines because of their low density, good oxidation resistance and high-temperature strength.
LIU Qiao-mu, HUANG Shun-zhou, HE Ai-jie
doaj   +1 more source

Optimization Design of Aspect Ratio and Solidity of a Heavy-Duty Gas Turbine Transonic Compressor Rotor

open access: yesMachines, 2023
To investigate the influence of blade aspect ratio and solidity on the performance of heavy-duty gas turbine transonic compressors, a multi-objective optimization design platform was built by adopting the blade parameterization method based on the ...
Shuaipeng Liu   +4 more
doaj   +1 more source

The comparison of various gas turbine inlet aircooling methods for various ambient condition trough energy and exergy analysis [PDF]

open access: yes, 2012
The strong influence of climate conditions on gas turbine behavior is well known. During the summer season the output of gas turbines falls to a value that is less than the rated output under high temperature conditions. Cooling the turbine inlet air can
Kaviri, A. Ganjeh   +3 more
core   +1 more source

Comparison of sintering resistance property of new thermal barrier coatings LaMgAl11O19 and YSZ coatings for heavy-duty gas turbines

open access: yesCailiao gongcheng
With the development of heavy-duty gas turbines, its gas inlet temperature keeps increasing, and the traditional YSZ coatings could not service above 1200 ℃.
HE Lei, DENG Tiantian
doaj   +1 more source

Strain hardening exponents and strength coefficients for aeroengine isotropic metallic materials – a reverse engineering approach

open access: yesJournal of the Mechanical Behavior of Materials, 2014
The strain hardening exponent and strength coefficient of the Ramberg-Osgood flow rule are required for the accurate design analysis of the materials of aeroengine components.
Rajendran R.   +3 more
doaj   +1 more source

Evaluation of novel-objective functions in the design optimization of a transonic rotor by using deep learning

open access: yesEngineering Applications of Computational Fluid Mechanics, 2021
Design optimization of transonic airfoils for rotary blades is a challenging subject that remarkably affects the stage and overall performance of axial-flow compressors.
A. Zeinalzadeh, M.R. Pakatchian
doaj   +1 more source

A Novel Integrated Control Method for an Aero-Derivative Gas Turbine of Power Generation

open access: yesMachines, 2022
On account of the complexity of aero-derivative gas turbines and the much higher control requirements, it is significant and meaningful to design advanced controllers for obtaining the ideal control effect.
Senchuang Guo   +4 more
doaj   +1 more source

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