The transfer path analysis method on the use of artificial excitation: Numerical and experimental studies

In this paper, a TPA method on the use of artificial excitation is presented. In the method artificial excitation is applied on the active part for providing sufficient incoherent forces to improve the estimation. The known force is applied on the passive part for establishing a relationship between the responses and loads. The advantages of this method are that it estimates the uncoupled transfer function of the passive part on the basis of in-situ measurements, without disassembling the system. The proposed method is validated by numerical and experimental case studies. Some remarks and practical aspects are discussed.