Results 91 to 100 of about 268,410 (358)

Learning control system of lifting machine motors [PDF]

open access: yesЖурнал інженерних наук, 2016
Process automation control by diagnostic electric motors in operation conditions allows to reduce to a minimum the damage from these consequences due to early detection of defects. The theory of diagnosticof lifting machine motors has not been completely
V. I. Zimovets   +2 more
doaj  

Diagnostics of DC and Induction Motors Based on the Analysis of Acoustic Signals

open access: yesMeasurement Science Review, 2014
In this paper, a non-invasive method of early fault diagnostics of electric motors was proposed. This method uses acoustic signals generated by electric motors. Essential features were extracted from acoustic signals of motors.
Glowacz A.
doaj   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar   +6 more
wiley   +1 more source

Does Hedonic Price Indexing Change Our Interpretation of Economic History? Evidence from Swedish Electrification [PDF]

open access: yes
Rapid price decreases for ICT-products in the 1990s have been largely attributed to the introduction of hedonic price indexes. Would hedonic price indexing also have large effects on measured price and productivity during other technological ...
Edquist, Harald
core  

Innovating Aircraft Repair Processes: The Role of Digitalization in Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
This research explores how digitalization—by storing detailed non‐destructive testing data in structured DICONDE databases and creating a standard data model of the component—innovates aviation maintenance and repair processes. Coupled with a developed state‐based simulation model, it enables data‐driven, sustainable repair strategies that reduce waste,
Johanna Aigner   +3 more
wiley   +1 more source

A Concept of a Digital and Traceable Manufacturing Documentation Based on Formalized Process Description Applied on Composite Aircraft Moveable

open access: yesAdvanced Engineering Materials, EarlyView.
The documentation of component manufacture has become an essential part of today's production processes, especially for the analysis and optimization of production or component design with regard to structural performance, economic efficiency, and sustainability.
Björn Denker   +4 more
wiley   +1 more source

Design of SynRM and PMaSynRM using a common industrial stator platform: a new design methodology for transition from industrial applications to electric vehicles

open access: yesEngineering Science and Technology, an International Journal
This study presents a design methodology for synchronous reluctance (SynRM) and permanent magnet-assisted synchronous reluctance motors (PMaSynRM), developed through rotor lamination optimizations without altering the existing stator platform.
Sinan Suli   +2 more
doaj   +1 more source

A Study of the Degradation of Electronic Speed Controllers for Brushless DC Motors [PDF]

open access: yes
Brushless DC motors are frequently used in electric aircraft and other direct drive applications. As these motors are notactually direct current machines but synchronous alternating current machines; they are electronically commutated by a power inverter.
Gorospe, George E., Jr.   +4 more
core   +1 more source

Does Hedonic Price Indexing Change Our Interpretation of Economic History? Evidence from Swedish Electrification [PDF]

open access: yes, 2008
Rapid price decreases for ICT-products in the 1990s have been largely attributed to the introduction of hedonic price indexes. Would hedonic price indexing also have large effects on measured price and productivity during other technological ...
Edquist, Harald
core  

Home - About - Disclaimer - Privacy