The surfaces of a ball-joint (diam. 10 m and weight 680 tons) used for the rotation of two retaining walls of a storm surge near Rotterdam are initially covered with a sliding spray of MoS2 and PTFE, but suffer wear. Lubricants in heavy-loaded constructions should most likely be avoided, implying a new design of the sliding surfaces by incorporation of polymer discs into holes (diam. 250 mm and depth 32 mm) tapped onto the back-scales of the joint. This study comprises theoretical and practical analysis of the contact situation, using FEM and full-scale test equipment for verification of the local static and dynamic behaviour of the polymer parts.
Integrated Design of Highly Loaded Sliding Surfaces of a Huge Ball-Joint
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Samyn, P, Van Paepegem, W, De Baets, P, Degrieck, J, Leendertz, JS, Suister, E, & Van Schepdael, L. "Integrated Design of Highly Loaded Sliding Surfaces of a Huge Ball-Joint." Proceedings of the World Tribology Congress III. World Tribology Congress III, Volume 2. Washington, D.C., USA. September 12–16, 2005. pp. 31-32. ASME. https://doi.org/10.1115/WTC2005-63200
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