Theoretical and experimental study on micro-vibration reduction of large dynamic machine foundation

Study on micro vibration of foundation plate is very important to high precision dynamic machine. Dynamic three dimensional finite element method for computation of micro vibration of large dynamic machine foundation is given in this paper. The equivalent element is constructed for considering soil structure interaction by implementing this method with common FE program. Contrast between results of theory and experiment proves accuracy of this method. Finally, some useful conclusions are given for reference.