A Testbed for Implementing Prognostic Methodologies on Cryogenic Propellant Loading Systems
Description
Prognostics technologies determine the health state of a system and predict its remaining useful life. With this information, operators are able to make maintenance-related decisions, thus effectively streamlining operational and mission level activities. Experimentation on testbeds representative of
critical systems is very useful for the maturation of prognostics technology; precise emulation of actual fault conditions on such a testbed further validates these technologies. In this paper we
present the development of a pneumatic valve testbed, initial experimental results and progress towards the maturation and validation of component-level prognostic methods in the context
of cryogenic refueling operations. The pneumatic valve testbed allows for the injection of time-varying leaks with specified damage progression profiles in order to emulate common valve faults. The pneumatic valve testbed also contains a battery used to power some pneumatic components, enabling the study of the effects of battery degradation on the operation of the valves.
Resources
| Name |
Format |
Description |
Link |
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33 |
KulkarniEtAl-ValveTestbed-Autotestcon2014 |
https://c3.nasa.gov/dashlink/static/media/publication/KulkarniEtAl-ValveTestbed-Autotestcon2014.pdf |