Abstract
Even though coned disk springs have been used as preload or isolation elements in mechanical design for over a century, prior research has used several simplifying assumptions in determining their static load-deflection relationships and their stiffness properties have been largely ignored. Accordingly, the entire displacement range is considered in this article, from fully unloaded height to flat height under quasi-static loading conditions. Friction is accounted for at the face-to-face disk spring contacts and at the disk spring edge-to-surface contacts, but is ignored in edge-to-edge contacts. New experimental results for a single coned disk element, the primary parallel stack configuration, and two primary series stack configurations are presented. Measured load-deflection characteristics are analyzed in the context of newly defined nine distinct regimes that are motivated by the physics. Hysteresis curves are also examined and compared with a refined load-deflection relation with interfacial and edge friction coefficients. Finally, a continuously nonlinear stiffness expression is analytically derived, which matches well with measurements but only over a limited range of displacements.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.