• Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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• 2000.04a
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• pp.89-94
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• 2000

Because the structural elements used in the automobile, astronautic and ship industries are put in dynamic loading environments, much interest is given to the damping of the structural elements, as well as high flexural rigidity and strength per density. Therefore, in this study, the structural damping value of the aluminum honeycomb sandwich plate(AHCP) has been experimentally extracted, and directly applied to the finite element, for the dynamic analysis of the plate considering the structural damping. The analysis results of this theory was compared with the results of the actual modal analysis method. It was observable that the two analyses concurred, establishing the structural damping and analysis method of the AHSP.

• Proceedings of the KSR Conference
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• 2011.10a
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• pp.1381-1388
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• 2011

Recently, Because of weight lighting and tighten safety regulations of the railway vehicle railroad weight lighting and safety improvement technology is internationally required. Slide step for moving the passenger to high flatform in the railroad vehicle is recognized of important parts. However, Due to high price and weight, it is limited. In this research, In order to apply for railroad, it was redesigned to optimize part count and reduce the price and weight. By choosing honeycombcore as a part for enduring high weight and weight lighting, We produce honeycombpanel of sandwich structure which a different kind connected by using existing stainless(STS304)steel and thermo plasticity glue. Finally, we can find that honeycombpanel is suitable for weight lighting and high weight. As well as, with test result, we can prove that low-high platform railway system will be optimized, if steps are applied to honeycombpanel.