This book presents a selection of contributions from the 4th International Conference on Structural Nonlinear Dynamics and Diagnostics, reflecting diverse aspects of nonlinear and complex dynamics. Fifteen chapters discuss the latest findings and applications in active research areas in nonlinear mechanics and physics. These includes the dynamics of ships with liquid sloshing interaction, dynamics of drops and bubbles, nonlinear drying processes, suppression of time-delayed induced vibrations, dynamics of robotic systems, chaos detection in rolling element, dynamics of a planetary gear system with faults, vibro-impact systems, complex fractional moments for nonlinear systems, oscillations under hysteretic conditions, as well as topics in nonlinear energy harvesting and control. 

Prof. Belhaq joined the University Hassan II-Casablanca in 1982 after receiving his doctorate from the University Paul Sabatier, Toulouse, France. He was a Visiting Professor and lecturer several times at the Free University of Berlin, University of Sevilla, University of LAquila, Ecole Centrale Lyon, INSA Lyon, Complutense University of Madrid, University of Cottbus, Military University of Warsaw, University of Munich, Cornell University, Virginia Tech University, Purdue University, the Indiana State University, University of Novi Sad, University of Jordan and CNRS Marseille.

Prof. Belhaq is a member of the International Research Center for Mathematics& Mechanics of Complex Systems (M&MoCS) and is the author and co-author of more than 120 scientific indexed papers published in leading journals in mechanics, nonlinear dynamics and applied mathematics. He has contributed to numerous international conferences and workshops. 

Parametric and autoparametric dynamics of ships with liquid sloshing interaction.- Dynamics analysis and control of the Malkus-Lorenz waterwheel with parametric errors.- Nonlinear characterization of a bistable energy harvester dynamical system.- The delayed  van der Pol oscillator and energy harvesting.- Reference dynamics based motion planning for robotic systems with flexible components.- Suppression of time-delayed induced vibrations through the dynamic vibration absorber: application to the inverted pendulum.- Modal analysis investigation of mechanical Kerr frequency combs.- Characterization of rolling element bearing data using the Gottwald and Melbournes 0-1 test and the Hugichi fractal dimension.- Dynamical response of a planetary gear system with faults using recurrence statistics.- Analytical approach to a two-module vibro-impact system.- Complex Fractional Moments for the characterization of the probabilistic response of non-linear systems subjected to white noises.- Oscillations under hysteretic conditions: from simple oscillator to discrete sine-Gordon model.- Drops and bubbles as controlled traveling reactors and/or carriers including microfluidics aspects.- Convection in a horizontal porous annulus with quasi-periodic gravitational modulation.- Identification of non-stationary and non-linear drying processes.