Flight Control System Architecture Optimization for Fly-By-Wire Airliners
| Autor: | Christophe Bauer, Kristen Lagadec, Marcel Mongeau, Christian Bes |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Engineering
business.industry Applied Mathematics Process (computing) Aerospace Engineering Control engineering Fly-by-wire Domain (software engineering) Space and Planetary Science Control and Systems Engineering Control system Systems architecture Process control Electrical and Electronic Engineering Adaptation (computer science) Engineering design process business |
| Zdroj: | Journal of Guidance, Control, and Dynamics. 30:1023-1029 |
| ISSN: | 1533-3884 0731-5090 |
| DOI: | 10.2514/1.26311 |
| Popis: | The design problem of a flight control system on a large fly-by-wire airliner is to find combinations of actuator(s), power circuit(s), and computer(s) for each control surface, to fulfill the constraints imposed by the safety regulations, while keeping the resulting system weight as low as possible. The trend toward more electrical aircraft makes it harder and harder to determine, in a reasonable computer time, optimal architectures solely by traditional trial-and-error methods. This paper introduces a flight control architecture optimization process,intended as a decision aid for system engineers at early stages of the flight control architecture definition. We present an optimization model for the design process, based on a safety constraint and a weight criterion, that allows the exploitation of traditional design rules in a systematic manner. We start by reducing the initial search domain through introducing the notion of surface possible architecture, which takes into account technological constraints and empirical practices. Then, we use an adaptation of branch-and-bound methods to solve the remaining discrete optimization problem. Finally, an application to the Airbus A340 roll control system is addressed. An exact optimum is found among 10 14 possible architectures in less than 25 min on a standard desktop computer. Our methodology is currently under the process of industrial implementation at Airbus, where it will be used in the early design stage as a decision-analysis tool. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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