The present invention is related to a leaf spring system allowing damage assessment in leaf springs (2) used in the motor vehicles and to a production method of the same. The system of the present invention particularly comprises a leaf spring (2) which comprises a series of fiber fabric layers exposed to polymeric resin with electrically conductive nanoparticles, therefore providing electrical conductivity with nanoparticle matrices along the entire fiber fabric layers; a current generator (6) in order for passage of electrical current throughout said leaf spring (2); a control unit (7) which is connected to both ends of said leaf spring (2) via conductors and measuring the resistance throughout the spring (2) and generating an electrical signal depending on the resistance or the current of the circuit; and a warning means in order to convert the electrical signal generated by said control unit (7) to a warning signal.


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    Title :

    DAMAGE ASSESSMENT IN COMPOSITE LEAF SPRINGS HAVING ELECTRICAL CONDUCTIVITY


    Additional title:

    SCHADENSBEURTEILUNG IN VERBUNDBLATTFEDERN MIT ELEKTRISCHER LEITFÄHIGKEIT
    ÉVALUATION DES DOMMAGES DANS DES RESSORTS À LAMES COMPOSITES AYANT UNE CONDUCTIVITÉ ÉLECTRIQUE


    Contributors:

    Publication date :

    2017-02-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F16F SPRINGS , Federn / B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES



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    Design Assessment Of Composite Leaf Springs For Commercial Vehicles

    Wood,P. / GKN Technolgy,GB | Automotive engineering | 1984


    Mass production of composite leaf springs

    Ernst-Siebert, Robert / Grasser, Sebastian | Springer Verlag | 2018


    LEAF SPRINGS

    ROWLAND, E. K. | SAE Technical Papers | 1911


    LEAF SPRINGS

    LANE, LEAVITT J. | SAE Technical Papers | 1913