{"id":{"repo_id":"woods-hole","oai_identifier":"oai:darchive.mblwhoilibrary.org:1912/2760"},"canonical_url":"https://search.dev.ndltd.org/etd/woods-hole/oai:darchive.mblwhoilibrary.org:1912/2760","repository":{"repo_id":"woods-hole","name":"Woods Hole Oceanographic Institute","base_url":"https://darchive.mblwhoilibrary.org/server/oai/request"},"display":{"title":"Damping estimation, response prediction and fatigue calculation of an operational single pile platform","abstract":"A comparison between predicted and measured damping controlled dynamic response of an operational single pile platform (AMOCO's South Marsh Island Block 33B platform) is presented. In the predictive analysis, a finite element model of the structure and a theoretical assessment of damping phenomena are combined with a response prediction method which utilizes the principle of reciprocity of ocean waves. The result is a versatile expression for the estimation of the dynamic response fatigue life of a platform in a directionally spread sea. In addition, the data analysis performed on wind, wave and response time histories, recorded in March, 1980, is carefully described. A method is presented which uses biaxial accelerometer data to infer platform modal orientations and to estimate wave spreading. Finally, modal natural frequencies and damping ratios are estimated using the Maximum Entropy Method (MEM) of spectral analysis. Good agreement between predicted and estimated response characteristics is attained.","abstract_html":"A comparison between predicted and measured damping controlled dynamic response of an operational single pile platform (AMOCO's South Marsh Island Block 33B platform) is presented. In the predictive analysis, a finite element model of the structure and a theoretical assessment of damping phenomena are combined with a response prediction method which utilizes the principle of reciprocity of ocean waves. The result is a versatile expression for the estimation of the dynamic response fatigue life of a platform in a directionally spread sea. In addition, the data analysis performed on wind, wave and response time histories, recorded in March, 1980, is carefully described. A method is presented which uses biaxial accelerometer data to infer platform modal orientations and to estimate wave spreading. Finally, modal natural frequencies and damping ratios are estimated using the Maximum Entropy Method (MEM) of spectral analysis. Good agreement between predicted and estimated response characteristics is attained.","abstract_has_math":false,"creators":["Cook, Michael F."],"institution":"Massachusetts Institute of Technology and Woods Hole Oceanographic Institution","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1982,"date_issued":"1982-01","date_published":"1982-01","updated_at":"2026-07-27T22:05:06Z","subjects":["Offshore structures","Drilling platforms","Damping","Estimation theory","Spectrum analysis"],"languages":["en_US"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier.doi","label":"DOI","values":["10.1575/1912/2760"],"render_values":[{"text":"10.1575/1912/2760","href":"https://doi.org/10.1575/1912/2760","code":true}]}]},"links":{"outbound_url":"https://hdl.handle.net/1912/2760","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Cook, Michael F."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2009-03-31T19:24:45Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2009-03-31T19:24:45Z"]},{"key":"dc:date.issued","label":"Date","values":["1982-01"]},{"key":"dc:publisher","label":"Institution","values":["Massachusetts Institute of Technology and Woods Hole Oceanographic Institution"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Offshore structures","Drilling platforms","Damping","Estimation theory","Spectrum analysis"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en_US"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.doi","label":"DOI","values":["10.1575/1912/2760"]},{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/1912/2760"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submitted in partial fulfillment of the requirements for the degree of Ocean Engineer at the Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution January 1982"]},{"key":"dc:description.abstract","label":"Abstract","values":["A comparison between predicted and measured damping controlled dynamic response of an operational single pile platform (AMOCO's South Marsh Island Block 33B platform) is presented. In the predictive analysis, a finite element model of the structure and a theoretical assessment of damping phenomena are combined with a response prediction method which utilizes the principle of reciprocity of ocean waves. The result is a versatile expression for the estimation of the dynamic response fatigue life of a platform in a directionally spread sea. In addition, the data analysis performed on wind, wave and response time histories, recorded in March, 1980, is carefully described. A method is presented which uses biaxial accelerometer data to infer platform modal orientations and to estimate wave spreading. Finally, modal natural frequencies and damping ratios are estimated using the Maximum Entropy Method (MEM) of spectral analysis. Good agreement between predicted and estimated response characteristics is attained."]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Damping estimation, response prediction and fatigue calculation of an operational single pile platform"]}]}],"canonical_facts":{"dc:creator":["Cook, Michael F."],"dc:date.accessioned":["2009-03-31T19:24:45Z"],"dc:date.available":["2009-03-31T19:24:45Z"],"dc:date.issued":["1982-01"],"dc:description":["Submitted in partial fulfillment of the requirements for the degree of Ocean Engineer at the Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution January 1982"],"dc:description.abstract":["A comparison between predicted and measured damping controlled dynamic response of an operational single pile platform (AMOCO's South Marsh Island Block 33B platform) is presented. In the predictive analysis, a finite element model of the structure and a theoretical assessment of damping phenomena are combined with a response prediction method which utilizes the principle of reciprocity of ocean waves. The result is a versatile expression for the estimation of the dynamic response fatigue life of a platform in a directionally spread sea. In addition, the data analysis performed on wind, wave and response time histories, recorded in March, 1980, is carefully described. A method is presented which uses biaxial accelerometer data to infer platform modal orientations and to estimate wave spreading. Finally, modal natural frequencies and damping ratios are estimated using the Maximum Entropy Method (MEM) of spectral analysis. Good agreement between predicted and estimated response characteristics is attained."],"dc:format.mimetype":["application/pdf"],"dc:identifier.doi":["10.1575/1912/2760"],"dc:identifier.uri":["https://hdl.handle.net/1912/2760"],"dc:language.iso":["en_US"],"dc:publisher":["Massachusetts Institute of Technology and Woods Hole Oceanographic Institution"],"dc:subject":["Offshore structures","Drilling platforms","Damping","Estimation theory","Spectrum analysis"],"dc:title":["Damping estimation, response prediction and fatigue calculation of an operational single pile platform"],"dc:type":["Thesis"]},"updated_at":"2026-07-27T22:05:06Z"}