2019 Volume 19 Issue 7 Pages 7_56-7_66
To raise public awareness of disaster prevention, we consider the use of an educational device, which gives earthquake experience, is effective in addition to emergency drills. We had developed a self-propelled earthquake vibration generating device, on which people can have earthquake experience. In this development, we have developed a new carriable earthquake vibration simulator for easy vibration experiments and visualization of various vibrations, which depend on the natural frequencies of buildings. This platform is designed to be smaller and lighter by having a lighter payload of about 10 kg, which is lighter than that of an existing platform. Also, this platform can generate two-dimensional vibration at 3 Hz to 10 Hz, which was difficult when using the existing platform. In this development, we have adopted two new mechanisms: a blade-type omni wheel for high gripping force on a floor and an omni-directional acceleration generating mechanism with twist radial configuration omni wheels to run on omni direction with high agility. In this paper, we report the design requirements and the functionalities, the configuration of the prototype, and the result of our experiments.
