WIT Press


Stress Field And Contact Force Analysis In A Low Friction Seal

Price

Free (open access)

Paper DOI

10.2495/CON950031

Volume

7

Pages

8

Published

1995

Size

760 kb

Author(s)

G. Belforte, T. Raparelli, A. Manuello Bertetto, L. Mazza & G. Montuoro

Abstract

The behaviour of a low friction elastomeric seal for piston in pneumatic cylinders is investigated using a numerical model which takes the seal's geometrical assembly conditions and operating pressure in cylinder chambers into account. The model assumes plane strain because of the high ratio of average seal diameter to radial extension. Seal material was characterized with a special numerical/experimental procedure. The study made it possible to determine contact pressures between seal and cylinder chamber in the absence of tangential adhesion or friction forces. 1 Introduction Pneumatic cylinder operation depends basically on the behaviour of the seals on the moving piston/rod assembly. In

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