Time-domain aeroelastic model for compound helicopter propeller-wing configuration

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

Abstract

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

Citation

Wang, Z., Anobile, A., & Popov, A. A. (2017, October). Time-domain aeroelastic model for compound helicopter propeller-wing configuration. Paper presented at Aerospace Europe CEAS 2017 Conference, Bucharest, Romania

• Presentation Conference Type: Conference Paper (unpublished)
• Conference Name: Aerospace Europe CEAS 2017 Conference
• Start Date: Oct 2, 2017
• End Date: Oct 6, 2017
• Deposit Date: Jul 27, 2018
• Peer Reviewed: Not Peer Reviewed
• Keywords: Aeroelasticity, Rotorcraft, Compound helicopter, Wing-propeller interaction
• Public URL: https://nottingham-repository.worktribe.com/output/888511
• Contract Date: Jul 27, 2018