You are being redirected because this document is part of your ASTM Compass® subscription.
    This document is part of your ASTM Compass® subscription.

    If you are an ASTM Compass Subscriber and this document is part of your subscription, you can access it for free at ASTM Compass

    A New Electromechanical Binding/Dynamometer for Actively Controlled Snow Ski Binding Systems

    Published: 01 January 1987

      Format Pages Price  
    PDF (180K) 11 $25   ADD TO CART
    Complete Source PDF (5.2M) 330 $87   ADD TO CART

    Cite this document

    X Add email address send
      .RIS For RefWorks, EndNote, ProCite, Reference Manager, Zoteo, and many others.   .DOCX For Microsoft Word


    This paper describes the design and performance evaluation of a second generation integral binding/dynamometer. To reduce cross-sensitivity, the dynamometer consists of seven elastic elements that are designed to offer minimal mechanical coupling. Through judicious location of the elements and interconnection of strain gages fixed to the elements, the dynamometer signals indicate the generalized loading (that is, six load components) between the boot and ski. Dynamometer elements are contained within the housing of the binding. The housing is fixed to the ski using a technique that makes the dynamometer readings immune to ski flexure. Accuracy checks of the dynamometer under a variety of loadings have documented its ability to consistently resolve forces to within 10% and moments to within 5%.

    The binding mechanism can be activated either manually or electrically. Electrical actuation is accomplished by means of a solenoid; manual operation is facilitated by locating manual controls to the front rather than the rear of the boot. To insure that the binding releases when the solenoid is energized, a special mechanism isolates the force, which the solenoid must overcome, from the variable contact forces developed between the boot and binding. By means of laboratory testing under loading typical of release conditions, the reliability of the mechanism to decouple the boot from the ski has been established.


    skiing, dynamometers, release bindings, electromechanical

    Author Information:

    Wunderly, G
    Graduate student and associate professor, University of California, Davis, CA

    Hull, ML
    Graduate student and associate professor, University of California, Davis, CA

    Committee/Subcommittee: F27.10

    DOI: 10.1520/STP23192S