TY - JOUR
T1 - On dynamic analysis and control of an elevator system using polynomial chaos and Karhunen-Loeve approaches
AU - Colon, Diego
AU - Cunha Jr, Americo
AU - Kaczmarczyk, Stefan
AU - Balthazar, Jose
PY - 2017/9/12
Y1 - 2017/9/12
N2 - The paper deals with the quantification of uncertainties in an elevator system, subjected to lateral vibration induced by the car guide rail irregularities, with and without a feedback control system. A mathematical model for the elevator system is derived, and a stochastic model for the rail profile irregularities is constructed. This model of uncertainties describes the rail profile as a random field, which is represented by means of Karhunen-Loeve expansion. Polynomial chaos is employed to compute the propagation of uncertainties through the stochastic model, in order to evaluate the disturbance rejection properties and robustness of the closed-loop system.
AB - The paper deals with the quantification of uncertainties in an elevator system, subjected to lateral vibration induced by the car guide rail irregularities, with and without a feedback control system. A mathematical model for the elevator system is derived, and a stochastic model for the rail profile irregularities is constructed. This model of uncertainties describes the rail profile as a random field, which is represented by means of Karhunen-Loeve expansion. Polynomial chaos is employed to compute the propagation of uncertainties through the stochastic model, in order to evaluate the disturbance rejection properties and robustness of the closed-loop system.
KW - Elevator systems
KW - nonlinear dynamics
KW - uncertainty quantification
KW - polynomial chaos
UR - http://www.sciencedirect.com/science/article/pii/S1877705817335191
U2 - 10.1016/j.proeng.2017.09.083
DO - 10.1016/j.proeng.2017.09.083
M3 - Article
SN - 1877-7058
VL - 199
SP - 1629
EP - 1634
JO - Procedia Engineering
JF - Procedia Engineering
ER -