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The design of a modern airplane brings together many disciplines: structures, aerodynamics, controls, systems, propulsion with complex interdependencies and many variables. Recent aircraft programs, such as Bombardier's Continental Jet program use participants located around the world and selected for their cost, quality and delivery capability. These participants share the risk on the program and must therefore be fully implicated in the design. A big challenge is to provide information on current design configuration simultaneously to all disciplines and all participants in the appropriate format. Another challenge of multidisciplinary optimization is to bring together technologies and methodologies of various disciplines in a way that is both practical and inclusive of the expertise that must accompany these individual technologies. This paper discusses progress made to address these challenges, streamline the aircraft design process and implement multidisciplinary optimization in an effective manner. Initiatives include: implementation of the Bombardier Engineering System (BES) and of an MDO software environment (VADOR), linking of aerodynamic and structural design and analysis codes, validation of advanced wing design methods and calibration of viscous flow analysis and drag prediction methods., Presented at RTO Applied Vehicle Technology Panel (AVT) Symposium held in Paris, France on 22-25 Apr 2002. The original document contains color images. ISBN 92-837-0027-9. Text in English; p48-1/48-11. This article is from ADA415759 Reduction of Military Vehicle Acquisition Time and Cost through Advanced Modelling and Virtual Simulation (La reduction des couts et des delais d'acquisition des vehicules militaires par la modelisation avancee et la simulation de produit virtuel)

With the increase competition among airlines to capture the customer base, more and more airlines demanding the aerospace industry to produce aircraft with high reliability and low maintenance costs. Similarly, aircraft manufacturers that once had the monopoly in various sectors, that is, small & large jets, propellers, business jet are now facing fierce competition. In response to airline industry, manufacturers are increasingly paying more attention to optimize new and current designs to improve reliability while low operating cost aircraft. This paper covers one of several methodologies available to optimize the design of an aircraft. The Life Cycle Cost (LCC) analysis is a powerful tool that has been used extensively on two new designs at Bombardier Aerospace. Several publications are available in public domain covering theoretical aspects of Engineering Economics, including Life Cycle Cost. The Life Cycle Cost analysis is a systematic approach in applying engineering economics to determine the best solution for a design over the useful life of the aircraft, from an economic standpoint., Presented at the Applied Vehicle Technology Panel (AVT) Specialists' Meeting, held in Ottawa, Canada, 21-22 October 1999. This article is from ADA388024 Design for Low Cost Operation and Support (la Conception en vue d'une exploitation et d'un soutien a cout reduit)