Implementation and Linearization of a Rotor Simulation with a State-Space Free-Vortex Wake Model

Umberto Saetti, Joseph F. Horn

Research output: Contribution to conferencePaperpeer-review

5 Scopus citations

Abstract

This paper describes the implementation and linearization of a free-vortex wake model in state-variable form as applied to a helicopter rotor. Following a detailed mathematical description, the wake model is implemented for a UH-60 rotor and tested in forward flight and for simple control inputs. A periodic solution to the wake model is found by time marching the coupled rotor and vortex wake dynamics. Next, linearized harmonic decomposition models are obtained and validated against nonlinear simulations. Order reduction methods are explored to guide the development of linearized wake models that provide increased runtime performance compared to the nonlinear and linearized harmonic decomposition wake models while guaranteeing satisfactory prediction of the periodic response of the wake.

Original languageEnglish (US)
StatePublished - 2022
Event78th Vertical Flight Society Annual Forum and Technology Display, FORUM 2022 - Fort Worth, United States
Duration: May 10 2022May 12 2022

Conference

Conference78th Vertical Flight Society Annual Forum and Technology Display, FORUM 2022
Country/TerritoryUnited States
CityFort Worth
Period5/10/225/12/22

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Control and Systems Engineering

Fingerprint

Dive into the research topics of 'Implementation and Linearization of a Rotor Simulation with a State-Space Free-Vortex Wake Model'. Together they form a unique fingerprint.

Cite this