Author(s)

Z. Walczyk

Abstract

The dynamic influence numbers (receptances) are applied to subsystems of mechanical contmction having rotors or propulsion shats. Supporting construction of rotor (bearings and machine foundation) or supporting construction of shaft (bearing supports and ship body) were modelled with use of frequency-dependent dynamic receptances representing elastic and damping properties of this construction. Foundation damping properties were modelled with certain asymmetry introduced to the receptances and resignation with use of Maxwell's or Betti's reciprocal law. Foundation receptances can be specified with use of experimental data acquired from the actual body or by way of computer calculation. Based on presented method computer code were made. 1 Introduction

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