Improvements in flight table dynamic transparency for hardware-in-the-loop facilities

Details Improvements in flight table dynamic transparency for hardware-in-the-loop facilities Improvements in flight table dynamic transparency for hardware-in-the-loop facilities

Jul 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000spie.4027..101d&link_type=abstract

Proc. SPIE Vol. 4027, p. 101-112, Technologies for Synthetic Environments: Hardware-in-the-Loop Testing V, Robert Lee Murrer; Ed

Computer Science

Scientific paper

Flight tables are a 'necessary evil' in the Hardware-In-The- Loop (HWIL) simulation. Adding the actual or prototypic flight hardware to the loop, in order to increase the realism of the simulation, forces us to add motion simulation to the process. Flight table motion bases bring unwanted dynamics, non- linearities, transport delays, etc to an already difficult problem sometimes requiring the simulation engineer to compromise the results. We desire that the flight tables be 'dynamically transparent' to the simulation scenario. This paper presents a State Variable Feedback (SVF) control system architecture with feed-forward techniques that improves the flight table's dynamic transparency by significantly reducing the table's low frequency phase lag. We offer some actual results with existing flight tables that demonstrate the improved transparency. These results come from a demonstration conducted on a flight table in the KHILS laboratory at Eglin AFB and during a refurbishment of a flight table for the Boeing Company of St. Charles, Missouri.

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