도로 수송에서의 컨테이너 화물 방진장치 연구

초록

This study deals with the development of a cargo vibration isolator that can be installed inside a container to reduce vibration throughout the entire transportation section. The vibration power spectral density (PSD) during road transportation was measured; the main vibration frequency was observed to be a low frequency of approximately 4Hz. The spring stiffness must be large to support a large load of heavy cargo but must be lowered to enable low-frequency vibration attenuation. To solve the problem, multi-spring nonlinear suspension (MSNS)-mount was proposed. Its optimal cargo weight can be adjusted to maximize vibration isolation and its separate design allows forklifts to enter the container without further action. To verify the design, nonlinear analyses and tests were conducted on container road transport. The results showed that large impact vibrations were reduced by approximately 88%, and the overall average of the transport section was reduced by approximately 63%.

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