Thermal effects on inverted pendulum thrust stands for steady-state high-power plasma thrusters

A. D. Kodys, L. D. Cassady, E. Y. Choueiri

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Thermal effects on direct measurements of the thrust produced by steady-state, high-power (≥ 10s of kWs) plasma thrusters using inverted-pendulum thrust stands are addressed. Three major sources of systematic error exist in the determination of thrust using an inverted-pendulum thrust stand; tare forces, thermal drifts, and thermal deflections. It is shown that thermal deflections, due to changes in the temperature of the flexures used to carry the thruster current, can be the most significant of these effects. The response of the flexural elements to changing thermal loads can produce stand displacements on the order of the expected thrust (100s of mN at thruster currents of 300-500 A). Thermal deflections were reduced by at least 80% by conducting the thruster current to the stand via mercury pots rather than the flexural elements.

Original languageEnglish (US)
Title of host publication39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624100987
DOIs
StatePublished - 2003
Event39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2003 - Huntsville, AL, United States
Duration: Jul 20 2003Jul 23 2003

Publication series

Name39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit

Other

Other39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2003
CountryUnited States
CityHuntsville, AL
Period7/20/037/23/03

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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    Kodys, A. D., Cassady, L. D., & Choueiri, E. Y. (2003). Thermal effects on inverted pendulum thrust stands for steady-state high-power plasma thrusters. In 39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit (39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit). American Institute of Aeronautics and Astronautics Inc.. https://doi.org/10.2514/6.2003-4842