A configuration and sizing design optimization problem for powertrain mounting systems is formulated. The objective function is to decouple and maximize the component modal kinetic energy of the powertrain subsystem. Natural frequencies and collinear roll vector condition are used as the constraints. Cartesian coordinates and spring rates of the mounts are selected as the design parameters. An automated design optimization procedure is developed using an optimization code based on the method of feasible direction (MFD) and MSC/NASTRAN as a finite element solver. The necessary gradient information is obtained using the central finite difference method. For the obtained optimum model, forced response analyses are performed in engine idling and wheel unbalancing conditions to show that overall accelerations are greatly reduced at the response positions.


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    Titel :

    Configuration and sizing design optimization of powertrain mounting systems


    Weitere Titelangaben:

    Optimierte Auslegung von Triebstranglagerungen


    Beteiligte:
    Cho, S. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2000


    Format / Umfang :

    14 Seiten, 11 Bilder, 3 Tabellen, 14 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





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