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Concurrent Engineering
 

Concurrent Engineering

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Concurrent Engineering

Concurrent Engineering

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    Concurrent Engineering Concurrent Engineering Presentation Transcript

    • Concurrent Engineering Module SESA3002a; Aerospace Design 1 James Scanlan; School of Engineering Sciences
    • CE Definitions: • “The application of tools, techniques, methodologies, and behavioral initiatives used to minimise product development timescales by maximising the degree of overlap of design activities.” • “A ‘buzz-phrase’ with a limited shelf life?” • “Optimal design.” Module SESA3002a; Aerospace Design 2 James Scanlan; School of Engineering Sciences
    • Sequential Design (“over-the-fence” approach) Centralised Design Concurrent Design Module SESA3002a; Aerospace Design 3 James Scanlan; School of Engineering Sciences
    • Concurrent Engineering • Serial engineering: Good – control of two parameters Quick Cheap • Concurrent Engineering: – Attempt to control all three parameters Module SESA3002a; Aerospace Design 4 James Scanlan; School of Engineering Sciences
    • Case Study Module SESA3002a; Aerospace Design 5 James Scanlan; School of Engineering Sciences
    • Stringer Manufacturing Early 1980’s A320 rate increase; Severe capacity problems Module SESA3002a; Aerospace Design 6 James Scanlan; School of Engineering Sciences
    • Stringer Forming Highly labour intensive, Long lead times, Quality critical. Module SESA3002a; Aerospace Design 7 James Scanlan; School of Engineering Sciences
    • Twisting operation Concern over effect on Fatigue properties ! Module SESA3002a; Aerospace Design 8 James Scanlan; School of Engineering Sciences
    • Manufacturing Automation Extremely costly capital equipment; high maintenance costs, dedicated function Module SESA3002a; Aerospace Design 9 James Scanlan; School of Engineering Sciences
    • Some historical perspective….. Module SESA3002a; Aerospace Design 10 James Scanlan; School of Engineering Sciences
    • CE is not new; P51 DESIGNED + DEVELOPED IN 102 DAYS TECHNOLOGICALLY ADVANCED DESIGNED FOR LOW COST Module SESA3002a; Aerospace Design 11 James Scanlan; School of Engineering Sciences
    • Supermarine Spitfire • Example of CE? – Good ? – Cheap ? – Quick ? Module SESA3002a; Aerospace Design 12 James Scanlan; School of Engineering Sciences
    • Bf 109 7000 M/hours, much emphasis on design for Manufacture Module SESA3002a; Aerospace Design 13 James Scanlan; School of Engineering Sciences
    • DH 98 Mosquito Arguably a good example of CE. Much emphasis on design for manufacture; Use of modular assemblies, split fuselage halves for easy equipping, minimal use of compound curves. Module SESA3002a; Aerospace Design 14 James Scanlan; School of Engineering Sciences
    • Concorde Design for performance? Technical challenges huge, little opportunity for DFM/DFA? Module SESA3002a; Aerospace Design 15 James Scanlan; School of Engineering Sciences
    • How do you “do” CE? Module SESA3002a; Aerospace Design 16 James Scanlan; School of Engineering Sciences
    • Boeing “It is in project management that Boeing hope to gain an advantage over Airbus in the design of the 777”* *Sabbagh; 21st Century Jet Module SESA3002a; Aerospace Design 17 James Scanlan; School of Engineering Sciences
    • Boeing and CE • Conscious and deliberate • Planned size and number of DBTs – (planned 80 ended up with 250) • Highly structured meetings – (scheduled down to the minute) • Culture change Module SESA3002a; Aerospace Design 18 James Scanlan; School of Engineering Sciences
    • The Future MULTIMEDIA WALL Team Doc.’n Customer and Ad-Hoc Leader Customer and Ad-Hoc Systems Cost Experts Experts Config. Risks Progr.’s Structure Mechanisms Simulation Instruments AOCS Thermal Propulsion Power DHS Mission GS & Ops Comms ESTEC Dh015 Module SESA3002a; Aerospace Design 19 James Scanlan; School of Engineering Sciences
    • The Future ESA Concurrent Design Facility (CDF): Module SESA3002a; Aerospace Design 20 James Scanlan; School of Engineering Sciences