ANALYSIS OF EARTHQUAKE-RESISTANCE ABILITY FOR LARGE-SIZE COMPUTERS

The earthquake-resistance ability for large size computer was analyzed by FEM (Finite Element Method) using three-dimensional elastic models . For 19-inch rack computer frame structures, whether they include con tents (equipment and units) or not, the natural frequency, the dynamic frequency response and the dynamic time earthquake response for the s ame vibration as the earthquake in southern Hyogo prefecture, were cal culated. The analysis results were in agreement with the experimental results, and the vibration properties of the structures were clarified . Accordingly, it was possible to develop a high earthquake-resistance ability computer structure at low cost.