Results 21 to 30 of about 1,247,418 (410)

A Review of Non-Destructive Evaluation (NDE) Techniques for Residual Stress Profiling of Metallic Components in Aircraft Engines

open access: yesAerospace, 2022
Residual stresses are one of the main factors determining the failure of aircraft engine materials. It is not possible to reliably and accurately predict the remaining service life of aircraft engine components without properly accounting for the ...
Zhaoyu Shao   +6 more
doaj   +1 more source

Selection of Parameters for 3D Finite-volume Mesh for CFD Simulation of Axial Turbines

open access: yesMATEC Web of Conferences, 2018
This article describes the second part of the global work done by the authors aimed at finding the best settings for a numerical model for calculations of axial uncooled turbines using the RANS approach.
Popov Grigorii   +5 more
doaj   +1 more source

Optimization of Powerful Two-stage Screw Centrifugal Pump

open access: yesMATEC Web of Conferences, 2018
The article presents a refining method for a two-stage screw centrifugal pump by the joint usage of mathematical optimization software IOSO, meshing complex NUMECA and CFD software ANSYS CFX.
Baturin Oleg   +5 more
doaj   +1 more source

Vibration Test of Blade Disc of High Pressure Turbine in High Rotating Speed

open access: yesHangkong gongcheng jinzhan, 2021
In the high-speed rotating state, the experimental study on the vibration characteristics of high-pressure turbine rotor blade and the vibration reduction effect of flange damping device is beneficial to the later design iteration and obtain the real ...
LUO Li, HUANG Dayong
doaj   +1 more source

Experimental Analysis of the Influence of the Application of TiN, TiAlN, CrN and DLC1 Coatings on the Friction Losses in an Aviation Internal Combustion Engine Intended for the Propulsion of Ultralight Aircraft

open access: yesMaterials, 2021
Currently, there are many methods of reducing the friction losses of the main components of an internal combustion piston engine. The operating conditions of internal combustion piston engines intended for the propulsion of ultralight aircraft differ ...
P. Wróblewski, R. Rogólski
semanticscholar   +1 more source

Probabilistic Failure Risk of Aeroengine Life-Limited Parts Considering the Random Load Interference Effect

open access: yesAerospace, 2023
Probabilistic failure risk analysis of aeroengine life-limited parts is of great significance for flight safety. Current probabilistic failure risk analysis uses equal amplitude load calculations for conservative estimation, avoiding inclusion of the ...
Guo Li   +6 more
doaj   +1 more source

Optimization of gas turbine engine control using dynamic programming

open access: yesMATEC Web of Conferences, 2018
The aim of engine control optimization is to derive the optimal control law for engine operation managing during the aircraft flight. For numerical modeling a continuous flight process defined by a system of differential equations is replaced by a ...
Kuz’michev Venedikt   +3 more
doaj   +1 more source

Review of the development of the probabilistic damage tolerance assessment of life-limited parts in compliance with the airworthiness regulations

open access: yesPropulsion and Power Research, 2023
Probabilistic damage tolerance is a critical method to understand and communicate risk and safety. This paper reviews recent research on the probabilistic damage tolerance design for life-limited parts.
Shuiting Ding   +4 more
doaj   +1 more source

Thermodynamic designing of the small-scale gas turbine engine family with common core

open access: yesMATEC Web of Conferences, 2018
The paper describes the method of selecting the working process parameters of a family of small-scale gas turbine engines (GTE) with common core. As an example, the thermodynamic design of a family of small-scale gas turbine engines (SGTE) with common ...
Tkachenko Andrey   +3 more
doaj   +1 more source

Study on Overall Parameter and Performance Analysis of Different Configurations for Civil Turbofan Engine

open access: yesHangkong gongcheng jinzhan, 2018
In order to improve the competitiveness, optimizing the fuel economy and competitiveness of civil turbofan engines is becoming the research highlights recently.
Xue Bingjing, Li Hualei, Tan Zhiyong
doaj   +1 more source

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