Bus drivers are a group at risk of often suffering from musculoskeletal problems, such as low-back pain, while bus passengers on the last-row seats experience accelerations of high values. In this paper, the contribution of K-seat in decreasing the above concern is investigated with a detailed simulation study. The K-seat model, a seat with a suspension that functions according to the KDamper concept, which combines a negative stiffness element with a passive one, is benchmarked against the conventional passive seat (PS) in terms of comfort when applied to different bus users’ seats. More specifically, it is tested in the driver’s and two different passengers’ seats, one from the rear overhang and one from the middle part. For the benchmark shake, both are optimized by applying excitations that correspond to real intercity bus floor responses when it drives over a real road profile. Then a human model is placed on the seats in order to compare their optimum solutions in terms of the user’s whole-body vibrations (WBVs), using objective comfort metrics. Based on the results, the K-seat improves significantly the comfort of the users (~92%) compared to the PS, while it achieves a similar decrease in the maximum values of the user’s back accelerations (~97%).


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Investigation of Seat Suspensions with Embedded Negative Stiffness Elements for Isolating Bus Users’ Whole-Body Vibrations


    Additional title:

    Sae Technical Papers



    Conference:

    Automotive Technical Papers ; 2022



    Publication date :

    2021-02-17




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Investigation of Seat Suspensions with Embedded Negative Stiffness Elements for Isolating Bus Users’ Whole-Body Vibrations

    Papaioannou, Georgios / Sekulic, Dragan / Velenis, Efstathios et al. | British Library Conference Proceedings | 2021



    Dynamic performance analysis of vehicle seats with embedded negative stiffness elements

    Papaioannou, Georgios / Voutsinas, Artemios / Koulocheris, Dimitrios et al. | Taylor & Francis Verlag | 2020


    PERCEPTION THRESHOLDS FOR WHOLE-BODY VIBRATIONS ON AN AIRPLANE SEAT

    Krause, Louis / Topken, Stephan / Par, Steven Van De | TIBKAT | 2021


    Optimal design of passenger vehicle seat with the use of negative stiffness elements

    Papaioannou, Georgios / Voutsinas, Artemios / Koulocheris, Dimitrios | SAGE Publications | 2020