Title :
Friction Estimation in Multimass Systems
Author :
Friedland, Bernard ; Mentzelopoulou, Sofia ; Park, Young-Jin
Author_Institution :
Department of Electrical and Computer Engineering, New Jersey Institute of Technology, Newark, New Jersey, 07102.
Abstract :
An observer for estimating the vector of Coulomb friction force coefficients in a multimass system is presented. The vector is assumed to be a linear combination of sgn(·) functions of relative velocities of the contacting masses. Two different nonlinear observers are proposed to estimate the friction coefficients when the velocities of the masses can be measured. When only the positions of the masses can be measured, an additional (reduced-order observer) is used to estimate the velocities of the masses. Excellent performance of the proposed system in the presence of white noise, is demonstrated by simulation.
Keywords :
Bandwidth; Control systems; Design methodology; Friction; Mechanical systems; Position measurement; Steady-state; Tellurium; Vectors; Velocity measurement;
Conference_Titel :
American Control Conference, 1993
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0860-3