Nonlinear Dynamics, Volume 1: Proceedings of the 35th IMAC, A Conference and Exposition on Structural Dynamics, 2017, the first 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 Nonlinear Dynamics, including papers on: Nonlinear System IdentificationNonlinear Modeling & SimulationNonlinear Reduced-order ModelingNonlinearity in PracticeNonlinearity in Aerospace SystemsNonlinearity in Multi-Physics SystemsNonlinear Modes and Modal InteractionsExperimental Nonlinear Dynamics