DIMENSIONING MACHINE STRUCTURE FOR EARTHQUAKE RESISTANCE IN DESIGN STAGE
Designing the equipment of power plants, petrochemical or similar large plants, mechanical and electrical engineers have to consider, beside the standard load, possible earthquake load as well. Plant equipment is principally standardized products and its redesign in order to satisfy the local earthquake requirements is expensive and time consuming. In this paper the quasi-dynamic FEM method of calculation (QDM) and an optimal seismic intensity for calculation is proposed for design of equipment. The results obtained by QDM were compared with time history dynamic method. The QDM is simpler for designers use and helps them to design equipment, able to satisfy 95% earthquake conditions over the world.