Motion Responses Analysis of an Air-floating Caisson with Multiple Compartments under Mooring Condition
The numerical model of an air-floating caisson with multiple compartments was established by MOSES software and various anchoring methods were simulated.The time domain analysis of the surge,pitch and heave of the air flotation caisson was carried out.The influence of mooring point position,number of anchor chain,anchoring methods and number of compart-ments on the motion response of an air-floating caisson were studied.The results showed that the position of mooring points,the number of anchor chains,the way of anchoring and the number of compartments will affect the motion response of the structure.The most favorable mooring arrangement mood is that the mooring points are located on the top of t an air-floating caisson and 8 chains and cross anchoring mode.The increase of subdivision can improve the air floating stability of the box type air floating structure to a certain extent.Increasing the number of compartments can reduce the motion response of an air-flotation caisson to a certain extent.
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