Receptance coupling for dynamics prediction of assemblies with coincident neutral axes

This paper details the prediction of flexural receptances for nested components with common neutral axes using a multiple-point receptance coupling approach. Numerical validation is included for different numbers of coupling coordinates, equal and unequal coordinate spacing, rigid and finite stiffness component connections, and component interface damping. Additionally, the sensitivity of the assembly response to noise in the component receptances is evaluated and it is shown that some data smoothing may be required if measured receptances are to be used to represent the individual components, rather than the analytic expressions provided here.