Abstract
The tensioner is the core equipment for submarine pipeline laying. This paper describes an experimental study on the fretting wear behaviors and tribological mechanism of rubber and concrete in the process of pipeline laying. The variation of fretting behavior, friction coefficients and corresponding fretting mechanisms as a function of displacement amplitude and load are discussed in detail. Results shows that various fretting running regimes could be presented under different displacement amplitude and load, and the fretting wear characteristics are strongly dependent on the displacement amplitude. Abrasive damage and fatigue damage are typical wear characteristics of rubber in this test. Although a large amount of rubber wear debris act as a solid lubricant between the contact interface, irregular generation and shedding of the wear debris reduce the friction coefficient and produced drastic fluctuations.
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