Efficient numerical methods for aeroelastic analysis of wing-propeller configuration compound helicopters

Wang, Zi; Anobile, Alessandro; Popov, Atanas A.

Abstract

Efficient numerical methods for time-domain aeroelastic analysis of a wing structure under a propeller-wing configuration is described in the paper. A linear beam model with deformable elastic axis under torsion and flapping is considered to simulate a wing structure with a tipmounted propeller, relying on efficient, analytical formulations. The complete aeroelastic system of equations is then solved using Galerkin’s approach, and numerically integrated by the Newmark-beta method. The computational tool developed is able to efficiently predict in the time domain the wing aeroelastic transient behaviour and the wing-propeller interaction effects.
The purpose of the tool developed is to provide accurate enough predictions of the system aeroelastic response to be included in structural optimisation and control synthesis procedures. A detailed analysis on the solver used and an aeroelastic case study of a Eurocopter
X3-like compound helicopter wing/propeller configuration are demonstrated.

Citation

Wang, Z., Anobile, A., & Popov, A. A. Efficient numerical methods for aeroelastic analysis of wing-propeller configuration compound helicopters. Paper presented at Italian Association of Aeronautics and Astronautics XXIV International Conference

• Presentation Conference Type: Conference Paper (unpublished)
• Conference Name: Italian Association of Aeronautics and Astronautics XXIV International Conference
• End Date: Sep 22, 2017
• Publication Date: Sep 18, 2017
• Deposit Date: Jul 26, 2018
• Publicly Available Date: Jul 26, 2018
• Peer Reviewed: Not Peer Reviewed
• Keywords: Aeroelasticity, Compound helicopter, Numerical method
• Public URL: https://nottingham-repository.worktribe.com/output/883501
• Related Public URLs: http://www.aidaa2017.com/
• Contract Date: Jul 26, 2018