Flight test planning and parameter extraction for rotorcraft system identificationThe present study is concerned with the mathematical modelling of aircraft dynamics on the basis of an investigation conducted with the aid of the Rotor System Research Aircraft (RSRA). The particular characteristics of RSRA make it possible to investigate aircraft properties which cannot be readily studied elsewhere, for example in the wind tunnel. The considered experiment had mainly the objective to develop an improved understanding of the physics of rotor flapping dynamics and rotor loads in maneuvers. The employed approach is based on a utilization of parameter identification methodology (PID) with application to helicopters. A better understanding of the contribution of the main rotor to the overall aircraft forces and moments is also to be obtained. Attention is given to the mathematical model of a rotorcraft system, an integrated identification method, flight data processing, and the identification of RSRA mathematical models.
Document ID
19860047369
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Wang, J. C. (San Jose State Univ. CA, United States)
Demiroz, M. Y. (San Jose State University CA, United States)
Talbot, P. D. (NASA Ames Research Center Moffett Field, CA, United States)