Abstract
Abstract Mechanical structures often consist of many substructures and moving parts. The dynamic characteristics of substructures are important for transfer path analysis and fault diagnosis. In this paper, the structural dynamic decoupling method is further developed by considering the mass effect of resilient links. The proposed method is able to identify decoupled transfer functions accurately, whilst eliminating the mass effect of resilient links. The mass effect of resilient links on the dynamic stiffness of the link and structural dynamic decoupling is discussed. The relationships between the decoupled transfer functions and the resilient link mass are derived in theory. The proposed method is validated by numerical case studies.
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