A feasibility study for a versatile deep sea, multileg, stable, cable array
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The purpose of this study is to investigate the feasibility of designing, building, and deploying a large, stable, multileg, deep ocean cable array with a service life of at least five years, and to assess the cost of such an array. The study first defines the essential desirable features of the array. It then briefly describes a number of candidate configurations which can meet these requirements, pointing out their advantages and disadvantages. The study then undertakes an array comparative stability analysis. The Fortran computer program DESADE was used to perform this comprehensive study. Current induced displacements and stress levels of simple and complex arrays were computed using this program. The results thus obtained greatly helped quantify their relative merit . Based on this analysis and on the array requirements previously defined a candidate array is selected for preliminary design. This design essentially consists of the rational selection of type, size, and materials for the buoys, cables, and anchors of the prototype array . Safety factors compatible with the five years life expectancy arc confirmed by additional computer runs, using operational and survival current conditions. The successful deployment and practical servicing of a deep sea implanted array require careful planning and detailed preparation. The next phase of this study is to outline a deployment scenario, and to indicate the different methods for servicing the array. Power sources and methods of data retrieval are considered. Use of manned and unmanned submersibles is contemplated . The last phase of the study is an estimate of the cost of the prototype array components. The report concludes that such an array is feasible, that it can be implanted with a high expectation of reliability and that it can be a safe and stable structure from which to conduct divers novel and useful scientific experiments.
Suggested CitationTechnical Report: Berteaux, Henri O., Walden, Robert G., "A feasibility study for a versatile deep sea, multileg, stable, cable array", 1981-03, DOI:10.1575/1912/9624, https://hdl.handle.net/1912/9624
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