In this paper a magnetostrictive material (Terfenol-D) based active vibration control of high amplitude has been proposed. A single link planar flexible manipulator with rotary joint has been modelled using Terfenol-D as smart active material. H-infinity filter is used in the context to estimate the tip deflection (position) and deflection rate (velocity) of the flexible manipulator based on wh...

OBJECTIVE To verify the accordance of functional and morphometric parameters during the development of emphysema. METHODS BALB/c mice received a nasal drop of either papain or saline solution and were studied after 1, 3, 15, 28, and 40 days. Functional parameters, such as airway resistance, tissue damping, and tissue elastance, were analyzed. To evaluate the structural changes and possible me...

The dynamic behavior of offshore wind turbines (OWTs) must be designed considering stochastic load amplitudes and frequencies from waves mechanical loads associated with the spinning rotor during power production. proximity OWT natural frequency to excitation combined low damping necessitates a thorough analysis sources damping; these damping, least is known about contributions soil-structure i...

This project develops the modal control system for vibration damping of an elastic object with distributed parameters. Non-controllable upper modes excitement sets a limit on efficiency individual lowest mode damping. The study tests operability in relation to changing sensor - actuator number while feedback loops remains same. Simulation results show spillover effect degradation case overcharg...

To compute dynamic characteristics of nonlinear viscoelastic springs with elastic structures having huge degree-of-freedom, Yamaguchi proposed a new fast numerical method using finite element method [1]-[2]. In this method, restoring forces of the springs are expressed using power series of their elongation. In the expression, nonlinear hysteresis damping is introduced. In this expression, nonl...

In this work is considered the problem of rest-to-rest motion in a desired pre-fixed time for planar flexible manipulators. We introduce a simple idea permitting the minimization of end-effector residual vibration when reaching a desired angular equilibrium position, in a pre-fixed desired travelling time. The results hold without considering internal elastic damping effect, using a classical c...

The determination of subject-specific model parameter values is necessary in order for a computer simulation model of human motion to be evaluated quantitatively. This study used an optimisation procedure along with a kinematically driven simulation model of the contact phase in running jumps to determine the elastic parameters of segmental wobbling masses and the foot-ground interface. Kinetic...

A special attention is paid to the motion of flexible links in a robotic configuration. The elastic deformation is a dynamic value which depends on the total dynamics of the robot system movements. The Euler-Bernoulli equation should be expanded according to the requirements of the motion complexity of elastic robotic systems. The EulerBernoulli equation (based on the existing laws of dynamics)...

The determination of subject-specific model parameter values is necessary in order for a computer simulation model of human motion to be evaluated quantitatively. This study used an optimisation procedure along with a kinematically-driven simulation model of the contact phase in running jumps to determine the elastic parameters of segmental wobbling masses and the foot-ground interface. Kinetic...