5/2/2023 0 Comments Kgal slack water drift![]() The only difference is that one end of the offshore mooring line is connected to the anchor and another end to the fairlead of the floating body. The geometry of the offshore slack mooring line is the same as a chain suspended between two poles. Below figures demonstrates the difference between taut mooring and catenary mooring.įigure 2: Restoring forces – Catenary Mooringįigure 3: Restoring forces – Taut MooringĮver wondered why slack mooring is also called as catenary mooring? It is easy to mathematically prove that any line/chain suspended under its self weight assumes a shape of a geometric curve called catenary. In slack (catenary) mooring lines the restoring forces are mainly due to the result of a change in suspended weight of lines whereas in taut mooring the restoring forces are generated primarily due to the result of the elasticity of the line. Amsterdam: Elsevier.) It is important to understand the fundamental differences between the two as the restoring forces generated in both are due to different mechanisms. (2005). Handbook of offshore engineering. Catenary Mooring (Source: Chakrabarti, S. Mooring systems are broadly classified into two categories namely slack (or catenary) mooring system and taut mooring system as shown in Figure 1.įigure 1: Taut Mooring vs.
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