In the land transportation of cultural properties in Japan, dedicated art transport vehicles are commonly used, with museum professionals accompanying the shipments. However, concerns have arisen regarding the vibrations generated during transport, particularly when passing over expansion joints on elevated highways. This study investigates the characteristics of vibrations occurring on the bed of such vehicles using measured acceleration data. Cumulative acceleration and power spectral density (PSD) analyses were conducted for both 2-ton and 4-ton trucks to visualize vibration distribution and identify critical frequency bands. Additionally, vibration response characteristics of commonly used packing materials—such as polyethylene foam and natural cotton—were evaluated through excitation tests. The results suggest that high-frequency vibrations around 200 Hz pose a potential risk, and selecting damping materials with appropriate frequency response properties is crucial. Furthermore, a driving simulator was developed using Unreal Engine to model vehicle behavior in a virtual environment, enabling safer and more cost-effective prediction of vibration conditions. These findings contribute to improving the safety and reliability of packing and transport methods for cultural properties.
Hiroshi Wada (Wed,) studied this question.