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Tracker controls development and control architecture for the Hobby-Eberly Telescope Wide Field Upgrade
To enable the Hobby-Eberly Telescope Wide Field Upgrade, the University of Texas Center for Electromechanics and McDonald Observatory are developing a precision tracker system – a 15,000 kg robot to position a 3,100 kg ...
Modeling and Simulation of Electric Propulsion Concepts for a Multimodal Prototype Demonstrator
The Office of Naval Research (ONR) is planning a prototype demonstration of a novel craft envisioned to have three modes of operation: Fuel-efficient, good sea keeping mode for open ocean transits, High-speed, shallow water ...
The Development of high-precision hexapod actuators for the Hobby-Eberly Telescope Wide Field Upgrade
Hexapods are finding increased use in telescope applications for positioning large payloads. Engineers from The University of Texas at Austin have been working with engineers from ADS International to develop large, high ...
ITER ECE: Plans and Challenges
Measuring ECE in ITER plasmas will present several difficulties in both hardware and physics that will impede efforts to determine Te(r,t) and characteristics of the electron distribution function. Recent work on the ...
Solid Freeform Fabrication by Selective Area Laser Deposition
Laser chemical vapor deposition is capable of selective area deposition of thin fums at high spatial resolution, and in the present work this advantage was used to perform solid freeform fabrication (SFF). The pyrolytic ...
Bulk Applications of HTSC--A Machine Designer’s Perspective
The prospect of practical high temperature superconductors (HTSC) has fired the imaginations of all electrical machine designers. Reduced refrigeration requirements are the most obvious advantage, but the implications of ...
Homopolar Pulsed Welding: Interface Properties of High Strength Steel Pipe, a Technical Note
This note discusses the microstructure, hardness, and toughness of a homopolar weld (HPW) performed on API 5L grade X-52 line pipe (90 mm diameter and 10 mm wall thickness). Homopolar welding is a solid state welding process ...
Monolithic Coil Tokamak