抄録
This paper presents a method for identifying the input power to structure in machine operation using experimental SEA. The basis of the method is that the vibrational energies of the respective subsystems during working can be measured using the velocimeter or accelerometer at the same measuring positions of constructing the SEA model. The accuracy of the identified input power is investigated through the use of the sensitivity of the input power with respect to the change of loss factors and energy for subsystem. This method is applied to two kinds of different structures. One is a simple plate structure composed of two subdivisions for impulsive testing. Another is a complicated structure composed of eight subdivisions for steady state testing. The estimated results show that the method has excellent performance to identify the input power during working.
