Dynamic simulation of polyester mooring lines

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dc.contributor.advisor Zhang , Jun en_US
dc.contributor.committeeMember Newton , Howard J . en_US
dc.creator Kim , Min Suk en_US
dc.date.accessioned 2004 -09 -30T01 :40 :15Z
dc.date.accessioned 2014 -02 -18T22 :28 :02Z
dc.date.available 2004 -09 -30T01 :40 :15Z
dc.date.available 2014 -02 -18T22 :28 :02Z
dc.date.created 2003 -05 en_US
dc.date.issued 2004 -09 -30T01 :40 :15Z
dc.identifier.uri http : / /hdl .handle .net /1969 .1 /15
dc.description.abstract A numerical scheme , known as CABLE3D , originally developed for the simulation of dynamics of steel chain -wire mooring lines is extended to allow for the large elongation in a mooring line , the dependence of the modulus on tension , and energy dissipation of a polyester rope under mean and cyclic loads . The modified CABLE3D is then integrated into a numerical package , known as COUPLE6D , for computing the interaction between a floating structure and its hybrid polyester mooring system . The Deepstar Spar is chosen in this study to represent the floating structure . By considering large elongation in polyester ropes in numerical simulation , the static offset curve of a polyester mooring system is softer than that calculated under the assumption of small elongation . That is , about 10 % reduction in restoring force at the mean offset position of the Spar under the impact of 100 -year hurricane storm . The effects of the mean loads on the modulus of polyester ropes are much greater than those of the dynamic loads . Hence , the former is more important in the simulation of the response of floating structures . The energy dissipation in polyester ropes under cyclic loading does not play significant roles in the responses of the Spar and tensions in a polyester mooring system . The above findings , although observed based on the numerical simulation of a particular floating structure , namely Spar , may have implications to other floating offshore structures moored by a polyester mooring system . Two systems are simulated in two different met -ocean conditions : hurricane and loop current condition . To study the properties of polyester , numerical simulation were conducted in three ways . Those are related to the modulus based on mean load , mean and dynamic loads , and structural damping respectively . Through the simulation , statistics of motions of the hull and tension in the mooring lines are compared with those of a conventional steel mooring system . en_US
dc.format.extent 4978786 bytes
dc.format.medium electronic en_US
dc.format.mimetype application /pdf
dc.language.iso en _US en_US
dc.publisher Texas A &M University en_US
dc.subject polyester en_US
dc.title Dynamic simulation of polyester mooring lines en_US
dc.type Book en
dc.type.genre Electronic Thesis en_US
dc.type.material text en_US
dc.format.digitalOrigin born digital en_US

Citation

Dynamic simulation of polyester mooring lines. Available electronically from http : / /hdl .handle .net /1969 .1 /15 .

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