Hisami Ohishi

Estimation of the Vibrational Power Supplied by a Machine that Generates Exciting Force to its Supporting Structure. The Case in which the Machine is not Separable from the Supporting Structure.

This paper proposes a method for estimating the vibrational power supplied by a machine that generates exciting force to its supporting structure through the coupling points. The basis of the method is that the vibrational power can be calculated using the mechanical impedance and the velocity at the coupling points. First, an equation for estimating the mobility at the coupling points when the machine cannot be separated from the supporting structure is derived. Then using a theoretical model of the machine and the supporting structure, estimated and theoretical values of the mobility and the vibrational power are calculated and compared, the result of which shows the validity of the method.