Control nonlinearities Dynamic absorber Dynamic vibration absorber Equations of motion Genetic algorithm Genetic algorithms Geophysics Governing equations Kinetic energy Kinetics Lagrange equation Lagrange multipliers Lagranges equations Multiple scales method Multiple scales methods Non-linear vibrations Nonlinear dynamic absorber Nonlinear equations Nonlinear vibration Parameter estimation Parameter optimization Potential energy Vibration amplitude Vibration systems Vibrations (mechanical)