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        Developing an efficient FEM structural simulation of a fan blade off test in a turbofan jet engine

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        Jason_Husband_PhD_thesis.pdf (38.12Mb)
        Date
        2007-10-29
        Author
        Husband, Jason Burkley
        Type
        Thesis
        Degree Level
        Doctoral
        Abstract
        This work develops a methodology for full engine FEA simulation of the fan blade off containment test for a jet engine using LS-Dyna. The fan blade off containment test is a safety requirement involving the intentional release of a fan blade when the engine is running at full power. The released blade must not pierce or fracture the engine cases during the impact or rotating unbalance. The novel feature of the LS-Dyna simulation is the extensive full engine geometry as well as the widespread use of nonlinearities (mainly plasticity and friction) to absorb the large kinetic energies of the engine rotors. The methodology is simple to use, runs quickly and is being recognized by industry as a contender for widespread implementation. Future applications look promising enough that the methodology warrants further development and refinement.
        Degree
        Doctor of Philosophy (Ph.D.)
        Department
        Mechanical Engineering
        Program
        Mechanical Engineering
        Supervisor
        Szyszkowski, Walerian
        Committee
        Oguocha, Ikechukwuka N.; Lawrence, Charles; Hertz, P. Barry; Fotouhi, Reza; Boulfiza, Mohamed
        Copyright Date
        October 2007
        URI
        http://hdl.handle.net/10388/etd-10292007-111221
        Subject
        LS-Dyna
        finite element method
        jet engine fan blade containment
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