To increase robustness of the crush mode and to decrease repair costs after a crash, it is desirable for front and rear rails in an automotive vehicle to crush progressively. Here, progressive crush refers to a mode of axial crush that initiates near the tip of the rail and then progresses rearward in a controlled fashion. In this study, a new strategy is investigated to achieve progressively crushing designs during an automated design optimization study. This strategy employs the definition of crush zones along the length of a rail, and a design optimization problem statement that encourages maximum energy absorption in any particular crush zone to occur prior to any energy absorption in rearward zones. It is demonstrated that high performing designs with progressive crush can be obtained using the proposed approach.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Design Optimization of Progressively Crushing Rails


    Additional title:

    Sae Technical Papers


    Contributors:
    Chase, N. (author) / Sidhu, R. (author) / Averill, R.C. (author)

    Conference:

    SAE World Congress & Exhibition ; 2009



    Publication date :

    2009-04-20




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Design optimization of progressively crushing rails

    Chase,N. / Averill,R.C. / Sidhu,R. et al. | Automotive engineering | 2009


    Design optimization of switch rails in railway turnouts

    Palsson,B.A. / Chalmers Univ.of Technology,SE | Automotive engineering | 2013


    Fast progressively refined image retrieval

    Swanson, M. D. / Tewfik, A. H. | British Library Online Contents | 1998


    Design of Roof Rack Rails with Cost and Weight Optimization

    Softa, Abhishek / Shami, Anuj / Khurana, Rajdeep Singh | SAE Technical Papers | 2017


    Hard rails or mild rails

    Stevarts, A. | Engineering Index Backfile | 1891