TECHNIQUES FOR MITIGATING DOMINANT FREQUENCY IMPARTED TO OBJECT

摘要

A spring supported tray for mitigating a dominant frequency imparted thereto is provided. The spring supported tray includes a tray including a topside and underside, and configured to support an object on the topside, and N springs supporting the tray, N being a positive integer. A first end of each of the N springs is disposed at the underside of the tray. A second end of each of the N springs is disposed so as to receive vibrational motion imparted to the second end of each of the N springs from a source of the vibrational motion, the vibrational motion having a dominate undesired frequency Each of the N springs has a spring constant k defined by the equation:; $$ k=\frac{f_n^24{\pi }^2w}{\mathrm{Ng}}$$ ;where w denotes the collective weight of the tray and the object, g denotes the force of gravity, and f_n denotes a natural frequency of the spring supported tray supporting the object, wherein f_n is a lower frequency than the dominate undesired frequency f_dom.