The Development of the New Optimization Method and Application to the Carrier Box

Abstract

Fruits and vegetables, blood and iPS cells, bottles of liquor, wine have frequency bands that are susceptible to damage. By designing a box that does not have an eigenfrequency within these frequency bands, it is possible to carry things more safely. In general, it is very difficult to move multiple eigenfrequencies simultaneously and greatly. First, as a result of the examination by the conventional topology optimization method, the ideal target structure could not be obtained. Therefore, as a result of trying to control the frequency by returning to the origin of the vibration that the eigenfrequency is determined by the equivalent stiffness and equivalent mass, and by setting a hole in the spring part for lowering it and in the mass part for raising it, the ideal structure was obtained.