Engineering topics

Smith, Tim

Publications and source records attributed to Smith, Tim.

4 records

NASA NTRS2016

High Throughput 600 Watt Hall Effect Thruster for Space Exploration

A nominal 600-Watt Hall Effect Thruster was developed to propel unmanned space vehicles. Both xenon and iodine compatible versions were demonstrated. With xenon, peak measured thruster efficiency is 46-48% at 600-W, with specific impulse from 1400 s to 1700 s. Evolution of the thruster channel due to ion erosion was predicted through numerical models and calibrated with experimental measurements. Estimated xenon throughput is greater than 100 kg. The thruster is well sized for satellite station keeping and orbit maneuvering, either by itself or within a cluster.

Hall Thrusters↗

NASA NTRS2016

Select Additive Manufacturing Projects at NASA Glenn Research Center

This presentation to a university audience focuses on presenting the additive manufacturing projects on nickel alloys currently underway at Glenn Research Center.

nickel↗

NASA NTRS2014

CubeSat Lunar and Deep Space Challenges

No abstract available

Eberly, Eric↗

NASA NTRS2006

Autocoding for Verifiability

A viewgraph presentation of an automatic code scheme for source verification issues is shown. The topics include: 1) Model-Based Control Law Development with Automatic Code Generation; 2) Source Verification Issues of Automatically Generated Code; 3) MXZ Code Generator; 4) Benefits and Limitations of MXZ; and 5) Current State of the Tool.

Smith, Tim↗