On the vibrational characteristics of a two-tier scaled container stack |
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Authors: | Levent Kirkayak Vinicius Aguiar de Souza Katsuyuki Suzuki Hideyuki Ando Hidetoshi Sueoka |
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Institution: | (1) Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa no Ha 5-1-5, Chiba 277-8568, Japan;(2) Monohakobi Technology Institute, 2-3-2 Marunouchi, Chiyoda-ku Tokyo, 100-0005, Japan |
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Abstract: | It is estimated that around 10,000 containers are lost during maritime transportation every year, representing an economic
loss to the liner industry. Regulations and norms used to calculate values to secure them to the ship’s deck account for static
loads only, neglecting more realistic conditions. This paper describes an approach to simulate a two-tier scaled model of
a 20-ft ISO freight container and its linking connectors, denominated twist locks, subject to a dynamical load induced by
its base. To analyze this problem two methods were employed: a shaking table test and finite-element analysis. Results of
this study indicate that the numerical model built to simulate two-tier container stack dynamics is a promising tool for further
studies. Moreover, the model is able to predict conditions close to real situations faced by container stacks while stored
on deck. |
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Keywords: | |
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