Results 61 to 70 of about 1,247,418 (410)

Design and Implementation of Maintenance Engineering Analysis Platform for Civil Aero-engine

open access: yesHangkong gongcheng jinzhan, 2021
With the development and application of civil aircraft,the demand for the development and application of aeroengine has gradually emerged.In order to improve the dispatch reliability of aeroengine,it is necessary to conduct professional analysis about ...
JIANG Ping   +5 more
doaj   +1 more source

Development of EPA aircraft piston engine emission standards [PDF]

open access: yes, 1976
Piston engine light aircraft are significant sources of carbon monoxide in the vicinity of high activity general aviation airports. Substantial reductions in carbon monoxide were achieved by fuel mixture leaning using improved fuel management systems ...
Houtman, W.
core   +1 more source

Advanced Ceramics in Aerospace and Defense: The Interrelationship between Traditional and Additive Manufacturing Approaches

open access: yesAdvanced Materials Technologies, EarlyView.
Additive manufacturing revolutionizes production by enabling on‐demand, customized, and sustainable manufacturing with streamlined supply chains. While metal and polymer AM are well‐established, advanced ceramic AM is rapidly emerging, overcoming traditional material challenges.
Kateryna Oleksandrivna Shvydyuk   +2 more
wiley   +1 more source

QCGAT aircraft/engine design for reduced noise and emissions [PDF]

open access: yes, 1980
The high bypass ratio QCGAT engine played an important role in shaping the aircraft design. The aircraft which evolved is a sleek, advanced design, six-place aircraft with 3538 kg (7,800 lb) maximum gross weight. It offers a 2778 kilometer (1500 nautical
Lanson, L., Terrill, K. M.
core   +1 more source

Multifunctional Magnetic Soft Actuators for Aerospace Applications: Morphing Structures and Biomimetics

open access: yesAdvanced Materials Technologies, EarlyView.
This paper investigates magnetic soft actuators for aerospace use. Various actuators with different magnetic particle fractions are created and tested to enhance their multifunctional performance, specifically displacement ability and mechanical strength, which significantly improved their mechanical strength by incorporating natural and synthetic ...
Diogo Santos   +3 more
wiley   +1 more source

Optimization method of combined high and low cycle fatigue P-S-N curve for aero- engine materials with small size sample

open access: yesCailiao gongcheng
The P-S-N curve of high and low cycle fatigue for aero-engine materials are essential to evaluate the service life of rotor components. However, it requires extensive experimental time and high material cost.
CAI Pei   +4 more
doaj   +1 more source

Diagnostics of an Aircraft Engine Pumping Unit Using a Hybrid Approach based-on Surrogate Modeling [PDF]

open access: yes, 2013
This document introduces a hybrid approach for fault detection and identification of an aircraft engine pumping unit. It is based on the complementarity between a model-based approach accounting for uncertainties aimed at quantifying the degradation ...
LAMOUREUX, Benjamin   +2 more
core   +5 more sources

Rotary 4D Printing of Programmable Metamaterials on Sustainable 4D Mandrel

open access: yesAdvanced Materials Technologies, EarlyView.
The paper introduces open, rotary 4D printing of programmable tubular metamaterials. It presents an open, non‐planar path‐to‐G‐code pipeline and shape‐changing rotary mandrel that enable support‐free fabrication and multi‐stimuli actuation. Experiments and FEA validate the mentioned features and stress redistribution.
Hesam Soleimanzadeh   +4 more
wiley   +1 more source

A Digital-Model-Based Approach for Defining HIRF Immunity Design Requirements of Commercial Aircraft Engine Control Systems

open access: yesIEEE Access
Commercial aircraft engine control systems must be immune to high-intensity radiated field (HIRF) effects to operate reliably and function stably under electromagnetic (EM) disturbances. However, there is a lack of effective methods to clearly define the
Bowen Wang, Shuyan Zhang, Zhe Zhang
doaj   +1 more source

Rotor burst protection criteria and implications [PDF]

open access: yes, 1977
Current aircraft design practices to minimize the hazard from rotor bursts are described. The consequences of non-contained engine failures and the impact of rotor burst protection systems on aircraft design are ...
Mccormick, R. B.
core   +1 more source

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