Reference no: EM132406057 , Length: word count:15000
EN3300 Project - Optimisation of Aircraft Structures
PROJECT SUMMARY: Minimum mass design of aerospace structures reduces the cost of materials and manufacturing. More significantly, it reduces the fuel consumption and environmental impact of the aircraft. Modern aircraft make increasing use of advanced lightweight materials such as carbon-fibre composites, which can be tailored to specific loading requirements. Optimum design therefore involves the adjustment of many more design variables than for metal structures and, even with today's computers, computation times for the underlying analysis can be prohibitive. So there is a need for reliable, efficient, approximate methods so that designers can quickly explore alternative configurations before carrying out more detailed analysis on the most promising ones.
The students carrying out this project will work with special purpose analysis software (VICONOPT) which has been developed through collaboration with NASA and Airbus. Starting with measurements from a real aircraft wing panel, attempts will be made to reduce the mass by altering the geometry of the cross-section, e.g. by varying the number and type of longitudinal stiffeners.
Another topic to be explored is the optimisation of the stacking sequences in a composite structure using lamination parameters to represent the stiffness properties of each component plate. A two-stage process is envisaged, in which (1) VICONOPT is used to find optimal values of the lamination parameters, and (2) a stacking sequence which matches these optimal values is chosen using a locally written MATLAB program. Alternative solution strategies will be explored in order to reduce the computation time for large problems.
Students are welcome to propose variants of this project.
PROJECT REQUIREMENTS: It is vital that instrumentation, experimental equipment, computer software etc, be functional at the start of the project. Please indicate your requirements as follows:- i) equipment service/repair calibration etc.
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EN3300 Project - Optimisation of Aircraft Structures
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