Effects of ice accretion on aircraft autopilot stability and performance

Vikrant Sharma, Petros G Voulgaris

Research output: Contribution to conferencePaper

Abstract

The effect of ice accretion leads to a change in the dynamic behavior of an aircraft. In the study that was carried, the effect of ice accretion on the performance of the aircraft autopilot was investigated. Different autopilot modes were chosen and simulations of the autopilot were performed under the icing conditions. Certain observations were noted and are cited in this paper. Stability analysis of the closed loop for the longitudinal mode of the autopilot was also performed by treating the icing level as the uncertainty in the model. The closed loop was found to be affinely dependent on the icing level parameter and this fact was exploited to obtain bounds on the stability of the autopilot. The particular aircraft that was investigated is the Twin Otter.

Original languageEnglish (US)
StatePublished - Dec 1 2002
Event40th AIAA Aerospace Sciences Meeting and Exhibit 2002 - Reno, NV, United States
Duration: Jan 14 2002Jan 17 2002

Other

Other40th AIAA Aerospace Sciences Meeting and Exhibit 2002
CountryUnited States
CityReno, NV
Period1/14/021/17/02

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ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

Cite this

Sharma, V., & Voulgaris, P. G. (2002). Effects of ice accretion on aircraft autopilot stability and performance. Paper presented at 40th AIAA Aerospace Sciences Meeting and Exhibit 2002, Reno, NV, United States.