Application of multivariate statistics in model experimental analysis of air cushion towing of 4-suction anchor platform
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Abstract:
This paper coducts model tests on a 1∶20 scaled model of four-suction anchor platform. The acceleration, the internal air pressure, the bottom water pressure of the suction anchors and towing force of the suction anchor platform are determined in series of towing combinations with different wave direction, wave velocity, wave period, towing velocity, towing points, towline length and tilt angle. Cluster analyses are used to classify the combinations of towing and factor analyses one used to analyze the mechanical characters. The correlative matrix is obtained which can reflect the correlation of mechanical characters. The factor analysis results show that 85% the total variance is attributed to the former six factors, and the factor scores of the towing combinations was obtained to find the most disadvantageous combinations and the mechanical characters which can lead to the disadvantageous results. The analysis results can be used for consulting the practical application.
