Determining the State of a Nonlinear Flexible Multibody System Using an Unscented Kalman Filter

This paper describes an estimator incorporating the Unscented Kalman Filter (UKF) technique and multibody system dynamics, to determine state of flexible applications. The dynamic equation mechanism is formed using a set non-linear equations as functions reference modal coordinates. Since both coordinates have no physical meaning, their information not able be obtained directly from sensors. Thus, novel proposed in this work that can successfully translate measurements collected by sensors into non-physical To validate performance modeling apply UKF nonlinear system, simulation were carried out for four-bar case study compare data data.