- About
-
The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 411 to 420 of 8272 (0.034 seconds)| 411 |
Multi-pole permanent magnet motor design and control for high performance electromechanical actuation in all electric aircraftBindl, Jared C. 01 January 2010 (has links)
The evolution of aircraft has led into a large increase in the demand for electrically integrated subsystems. Part of this demand is the transformation of a centralized hydraulic systems to independently operated electrical subsystems. The result of this overhaul will decrease aircraft weight, increase reliability, reduce aircraft lifetime maintenance and cost, and help to increase the control of power distribution. This thesis proposes the design methodology of a multi-pole permanent magnet (PM) motor with a capability to operate at high temperature. High temperature capability is one of the key requirements to implement electromechanical actuation for aircraft flight control, replace hydraulic actuation system, especially in tactical military aircraft, due to the hot environment and lack of heat sink. Temperature effects on motor materials are reviewed. The need for high power density is considered in the design. The motor design is confirm by ANYSYS RMXprt software. Along with the motor design, a voltage control method is also designed for the motor. Integrated electrical simulation results of the motor and controller to follow highly dynamic flight profiles are provided to show the stroke tracking, input power (including regenerative power), and winding copper loss. Experimentation set-up of EMA and experimental uncertainties are also discussed.
|
| 412 |
A Factorial Study of Dexterity TestsBourassa, George L. January 1957 (has links)
No description available.
|
| 413 |
A Study to Determine the Validity and Reliability of the Miami University Motor Ability Test for Bowling Green State University MenThompson, Douglas F. January 1957 (has links)
No description available.
|
| 414 |
A Factorial Study of Dexterity TestsBourassa, George L. January 1957 (has links)
No description available.
|
| 415 |
A Study to Determine the Validity and Reliability of the Miami University Motor Ability Test for Bowling Green State University MenThompson, Douglas F. January 1957 (has links)
No description available.
|
| 416 |
An Exploratory Study of the Effects Induced By Order of Presentation in the Factor Structure of a Battery of Psychomotor TestsCollins, Robert A. January 1965 (has links)
No description available.
|
| 417 |
Efficiency optimisation in a DC-DC chopper motor drivePrest, Rory Bruce 02 October 2023 (has links) (PDF)
A complete DC-DC motor drive (battery, chopper, and motor) - is investigated with a view to optimising efficiency. The losses at each stage are analysed in detail and proposals are made to minimise them. The overall system is also modelled for the purpose of computer simulation. The computer model is used to investigate the possible efficiency saving if both field and armature current are controlled. An optimum control system is developed and compared with other control systems.
|
| 418 |
Applications of a technique for the automatic analog determination of human response equation parameters /Ornstein, George Norman January 1961 (has links)
No description available.
|
| 419 |
Proactive inhibition for a motor response during short term memory /Selder, Dennis J. January 1968 (has links)
No description available.
|
| 420 |
The relationship between psychomotor ability and critical observation and evaluation ability /Kruppa, Richard Andrew,1939- January 1970 (has links)
No description available.
|
Page generated in 0.0565 seconds