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Stability Analysis of Section of Mohole Platform Lower Hull Between Bulkheads

机译：舱壁之间mohole平台下船体截面稳定性分析

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The possibility of local panel buckling in the Mohole platform lower hull is investigated. The configuration of a section of the hull is idealized to be a thin cylindrical shell with discrete, internal, circumferential and longitudinal stiffeners. The loading is idealized to be composed of two parts which are (1) a uniform external pressure applied to the hull and to the bulkheads and (2) an axial load which is applied through the bulkheads. An analytical procedure is derived which predicts the pressure necessary for buckling in the case of a specified axial load. Results of the analytical procedure are given for five possible lower hull configurations as well as for a case whose experimental buckling pressure was reported earlier. The comparison between the experimental and analytical buckling pressures was encouraging as they differed by only a few per cent. The results of the study can be used to analytically estimate the depth to which the lower hull may be submerged before local shell buckling occurs and consequently the results can be used to help evaluate various lower hull designs. (Author)

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