Dynamics of Coupled Structures, Volume 4: Proceedings of the 35th IMAC, A Conference and Exposition on Structural Dynamics, 2017, the fourth volume of ten from the Conference brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of the Dynamics of Coupled Structures, including papers on: Experimental Nonlinear DynamicsJoints, Friction & DampingNonlinear SubstructuringTransfer Path Analysis and Source CharacterizationAnalytical Substructuring & Numerical Reduction TechniquesReal Time SubstructuringAssembling & Decoupling Substructures & Boundary Conditions