... and can be used with multiphysics computational tools, and in principle, with experimental data. The proposed approach is validated using a simple, four degree of freedom model of a wind turbine. The predictions for the linear system are validated against an exact solution of the problem...

... to actively control panel vibrations. The control inputs are given by the electric fields required to drive the actuators based on piezoelectric actuation. Nonlinear feedback control laws are formulated through a transformation of the discretized nonlinear system into an equivalent controllable linear system...

...Khalid L. Sorensen; Patrick W. Cross; William E. Singhose; Shashvat Prakash Input shaping is an effective method for reducing oscillatory motion in linear systems. Many physical systems, however, exhibit discontinuous dynamics, such as saturation, rate limiting, backlash, and dead-zone. These hard...

... of linear systems in Laplace’s domain is also discussed. The formulation is applied to the solution of simple, yet illustrative problems, related to rigid and deformable bodies. Some implications of considering deformable continua are addressed. A simple flexible system, made of two masses connected...

... synthesis linear systems nonlinear control systems optimal control oscillators nonideal structure nonlinear dynamics optimal linear control The study of nonideal vibrating systems, i.e., systems where the excitation is influenced by the response of the system, continues to be a major...

... is shown in Fig. 8 . States of the original system States of the error dynamics In this paper, the observer design problems associated with linear as well as nonlinear free dynamic systems with time-periodic coefficients have been addressed. For linear systems a symbolic...

... control control system synthesis linear systems Multibody mechanical simulations are often used to model human walking, with the goal of analyzing the kinematics, dynamics, and energy consumption of different walking gaits. One of two methods is typically used: inverse dynamics calculations...

... out by von Dombrowski ( 38 ). In any case, the stiffness matrix K a is highly nonlinear and requires special evaluation as shown by Shabana ( 19 ). 03 05 2005 24 05 2005 vibrations flexible structures many-body problems nonlinear dynamical systems linear systems...