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Analysis of conventional and asymmetric aircraft configurations using CEASIOM

Analysis of conventional and asymmetric aircraft configurations using CEASIOM
Analysis of conventional and asymmetric aircraft configurations using CEASIOM
One of the main drivers behind the SimSAC project and the CEASIOM software is to bring stability analysis and control system design earlier into the aircraft conceptual design process. Within this paper two very different aircraft are considered, a conventional T-tail based on the existing EA500 Very Light Jet and the second, a novel Z-wing configuration known as the GAV or general aviation vehicle. The first aircraft serves as a baseline comparison for the second, and the cruise case is considered as a benchmark for identifying potential drag reductions and aircraft stability characteristics. CEASIOM, the Computerised Environment for Aircraft Synthesis and Integrated Optimisation Methods, is used to generate aerodynamic data sets for both aircraft, create trim conditions and the associated linear models for classical stability analysis. The open-loop Z-wing configuration is shown to display both highly unstable and coupled modes before a multivariable Stability Augmentation System (SAS) is applied both to decouple and stabilise the aircraft. Within this paper, these two aircraft provide a test case with which to demonstrate the capabilities of the CEASIOM environment and the tools which have been developed during the SimSAC project. This new software suite is shown to allow conceptual development of unconventional novel configurations from mass properties through adaptive-fidelity aerodynamics to linear analysis and control system design.
CEASIOM, SimSAC, flight control, z-wing, asymmetric aircraft, eigenstructure assignment
0376-0421
647-659
Richardson, T. S.
cc4a03c2-55af-46e1-ae59-4a4cfb8e4013
McFarlane, C.
285c9016-e8b1-4273-8397-21d2ece636ec
Isikveren, A.
ee04e646-a95f-4e8e-bd8e-2a9169932b46
Badcock, K. J.
64c4dc5d-1f2f-4358-af31-f6506c1810ef
Da Ronch, A.
a2f36b97-b881-44e9-8a78-dd76fdf82f1a
Richardson, T. S.
cc4a03c2-55af-46e1-ae59-4a4cfb8e4013
McFarlane, C.
285c9016-e8b1-4273-8397-21d2ece636ec
Isikveren, A.
ee04e646-a95f-4e8e-bd8e-2a9169932b46
Badcock, K. J.
64c4dc5d-1f2f-4358-af31-f6506c1810ef
Da Ronch, A.
a2f36b97-b881-44e9-8a78-dd76fdf82f1a

Richardson, T. S., McFarlane, C., Isikveren, A., Badcock, K. J. and Da Ronch, A. (2011) Analysis of conventional and asymmetric aircraft configurations using CEASIOM. [in special issue: Modeling and Simulating Aircraft Stability and Control] Progress in Aerospace Sciences, 47 (8), 647-659. (doi:10.1016/j.paerosci.2011.08.008).

Record type: Article

Abstract

One of the main drivers behind the SimSAC project and the CEASIOM software is to bring stability analysis and control system design earlier into the aircraft conceptual design process. Within this paper two very different aircraft are considered, a conventional T-tail based on the existing EA500 Very Light Jet and the second, a novel Z-wing configuration known as the GAV or general aviation vehicle. The first aircraft serves as a baseline comparison for the second, and the cruise case is considered as a benchmark for identifying potential drag reductions and aircraft stability characteristics. CEASIOM, the Computerised Environment for Aircraft Synthesis and Integrated Optimisation Methods, is used to generate aerodynamic data sets for both aircraft, create trim conditions and the associated linear models for classical stability analysis. The open-loop Z-wing configuration is shown to display both highly unstable and coupled modes before a multivariable Stability Augmentation System (SAS) is applied both to decouple and stabilise the aircraft. Within this paper, these two aircraft provide a test case with which to demonstrate the capabilities of the CEASIOM environment and the tools which have been developed during the SimSAC project. This new software suite is shown to allow conceptual development of unconventional novel configurations from mass properties through adaptive-fidelity aerodynamics to linear analysis and control system design.

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More information

Published date: November 2011
Keywords: CEASIOM, SimSAC, flight control, z-wing, asymmetric aircraft, eigenstructure assignment
Organisations: Aerodynamics & Flight Mechanics Group

Identifiers

Local EPrints ID: 351504
URI: http://eprints.soton.ac.uk/id/eprint/351504
ISSN: 0376-0421
PURE UUID: 0b351eec-8eaa-4793-8884-016e6160fb5d
ORCID for A. Da Ronch: ORCID iD orcid.org/0000-0001-7428-6935

Catalogue record

Date deposited: 23 Apr 2013 12:04
Last modified: 15 Mar 2024 03:46

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Contributors

Author: T. S. Richardson
Author: C. McFarlane
Author: A. Isikveren
Author: K. J. Badcock
Author: A. Da Ronch ORCID iD

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