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Phase Compensated Rate Limiters for Alleviation of Pilot-Induced Oscillations Caused by Control Surface Rate Limiting
Technical Paper
2005-01-3418
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The basic characteristics of Phase Compensated Rate Limiters, PCRL’s, are explained and their application to the alleviation of Pilot-Induced Oscillations, PIO, caused by control surface actuator rate limiting is demonstrated.
It is shown that PCRL’s can recover a large percentage of the control system phase loss caused by surface rate limiting while maintaining minimal temporary bias in the control surface response following rapid command reversals.
Their superior performance in meeting PIO criteria is shown by comparing the simulation results from an extensive study that was aimed at finding solutions for alleviating roll-axis PIO on an airplane where aileron and spoiler surface rate limiting appeared to be a predominant causal factor.
A comprehensive investigation of the effect of rate limiting in pilot-induced –oscillations is reported in Ref. 2
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Citation
Kendall, E., "Phase Compensated Rate Limiters for Alleviation of Pilot-Induced Oscillations Caused by Control Surface Rate Limiting," SAE Technical Paper 2005-01-3418, 2005, https://doi.org/10.4271/2005-01-3418.Also In
References
- “Pilot-Induced Oscillation Suppression Methods and their Effects on Large Transport Aircraft Handling Qualities” van der Weerd Rogier August 1998
- “Investigating the Role of Rate Limiting in Pilot- Induced-Oscillations” Klyde David Mitchell, David Atmospheric Flight Mechanics Conference Austin Texas 11–14 August 2003