On the Influence of Friction in the Calculation of Conical Disk Springs

[+] Author and Article Information
G. Curti, R. Montanini

Mechanical Engineering Department, Politecnico di Torino, C.so Duca degli Abruzzi, 10129 Torino, ITALY

J. Mech. Des 121(4), 622-627 (Dec 01, 1999) (6 pages) doi:10.1115/1.2829508 History: Received August 01, 1998; Revised September 01, 1999; Online December 11, 2007


An analytical solution is proposed by the authors in order to take into account the effects of friction in the calculation of conical disk springs. The new formulation allows a more accurate estimate of the load corresponding to a given displacement, but it implies the knowledge of the friction coefficient f between the spring and the supporting surfaces. The reported numerical examples show that, disregarding friction effects, the maximum error committed in the evaluation of the load is in the range 2–5%, with f = 0.14 (average friction coefficient value determined experimentally on commercial conical disk springs with different geometry). Comparison with both experimental and finite element calculations show a very good agreement of the analytical prediction.

Copyright © 1999 by The American Society of Mechanical Engineers
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