Two combined four-bar mechanisms have two functions: lift and collapse. In the current design, high effort was found for the collapse function. Axiomatic Design was used to analyze and optimize the current design. The customer domain was mapped into the functional domain by specifying customer needs in terms of functional requirements (FRs) and constraints (Cs). Design parameters (DPs) were identified in the physical domain for each functional requirement. Design matrices were then defined to characterize the product design.The two combined four-bar mechanisms have two functional requirements at the highest level: lift and collapse. The corresponding DPs are: lift four-bar linkage and collapse four-bar linkage. Through zigzagging to decompose to the next level, the design was found to be coupled. At this level, a torsion spring was selected as the DP for minimizing the lift effort. However, this DP was also found to affect three next level FRs for the collapse: the front leg rotation, the rear leg rotation and the float link rolling. This coupling greatly increased the collapse operation effort because the spring was useful for the lift function but was a hindrance for the collapse function.The design was decoupled by adding two locks, which are called floating link lock and front leg lock, and an extra plate which is called locking plate. The new modified design can improve customer satisfaction because when the rear lock and the floating link lock are released, the torsion spring will assist the lift, and when front lock and front leg lock are released, the torsion spring will not resist the collapse.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Design Optimization of Two Combined Four-Bar Mechanisms Using the Principles of Axiomatic Design


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Guo, George (Autor:in) / Xu, Sophia (Autor:in)

    Kongress:

    SAE 2004 World Congress & Exhibition ; 2004



    Erscheinungsdatum :

    2004-03-08




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Design optimization of two combined four-bar mechanisms using the principles of axiomatic design

    Guo,G. / Xu,S. / Visteon Automotive Systems,US et al. | Kraftfahrwesen | 2004


    Design Optimization of Two Combined Four-Bar Mechanisms Using the Principles of Axiomatic Design

    Guo, G. / Xu, S. / Society of Automotive Engineers | British Library Conference Proceedings | 2004


    Design Optimization of Two Combined Four-Bar Mechanisms Using the Principles of Axiomatic Design

    Guo, G. / Xu, S. / Society of Automotive Engineers | British Library Conference Proceedings | 2004



    Axiomatic Design Quality

    Haik, Basem | SAE Technical Papers | 2006