Linear parameter varying control applied to rotating machinery

• Grant number: 16/13059-1
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Start date: August 01, 2016
• End date: January 26, 2020
• Field of knowledge: Engineering - Mechanical Engineering - Mechanics of Solids
• Principal Investigator: Katia Lucchesi Cavalca Dedini
• Grantee: Matheus Freire Wu
• Host Institution: Faculdade de Engenharia Mecânica (FEM). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated research grant: 15/20363-6 - Fault tolerant identification and control of rotating systems, AP.TEM
• Associated scholarship(s): 17/15494-0 - Vibration control of a journal-bearing test rig using gain-scheduled controller, BE.EP.DD

Abstract

This project is associated to the topic 4.3.1 of the scientific kernel of the proposal and consists of the control design for a rotor-bearing system susceptible to hydrodynamic instabilities and parameters variations due to rotational speed dependant model and to components wear. It is proposed to apply and compare robust controllers, such as H and µ-synthesis, to adaptive controllers, LPV (Linear Parameters Variation) control. This task requires identifying of the systems sensitivity to different sources of variations, and the decision to classify then as uncertainties or variable parameters, since this decision usually implies in the relation between robustness, performance and numerical complexity. The control effort will be applied to the shaft without physical contact by electromagnetic force through a magnetic actuator, which also adds uncertainties to the system. The controllers will be compared by means of computational simulations; it is expected to observe far superior performance provided by the LPV control since they are not as conservative as robust control techniques. The obtained results will be validated by experimental tests on a test rig. (AU)

Scientific publications

(6)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

WU, MATHEUS F.; CAVALCA, KATIA L.; MARKERT, RICHARD. Feedforward Rotor Fault Compensation. STRUCTURAL CONTROL & HEALTH MONITORING, FEB 2020. (16/13059-1, 17/15494-0, 15/20363-6)

WU, MATHEUS FREIRE; CAVALCA, KATIA LUCCHESI. Experimental validation and comparison between different active control methods applied to a journal bearing supported rotor. STRUCTURAL CONTROL & HEALTH MONITORING, v. 26, n. 12, DEC 2019. (17/15494-0, 15/20363-6, 16/13059-1)

VISNADI, LAIS BITTENCOURT; GAROLI, GABRIEL YUJI; DE CASTRO, HELIO FIORI; CAVALCA, KL; WEBER, HI. Application of Stochastic Collocation on Eigenfrequencies Analysis of a Rotor-Bearing System. PROCEEDINGS OF THE 10TH INTERNATIONAL CONFERENCE ON ROTOR DYNAMICS - IFTOMM, VOL. 4, v. 63, p. 15-pg., 2019-01-01. (15/20363-6, 16/13059-1)

ALVES, DIOGO STUANI; WU, MATHEUS FREIRE; CAVALCA, KATIA LUCCHESI. Application of gain-scheduled vibration control to nonlinear journal-bearing supported rotor. Journal of Sound and Vibration, v. 442, p. 714-737, MAR 3 2019. (16/13059-1, 15/20363-6)

WU, MATHEUS F.; CAVALCA, KATIA L.; MARKERT, RICHARD. Feedforward Rotor Fault Compensation. STRUCTURAL CONTROL & HEALTH MONITORING, v. 27, n. 6, JUN 2020. (15/20363-6, 16/13059-1, 17/15494-0)

GAROLI, GABRIEL YUJI; TYMINSKI, NATALIA CEZARO; DE CASTRO, HELIO FIORI; CAVALCA, KL; WEBER, HI. Stochastic Collocation Approach to Bayesian Inference Applied to Rotating System Parameter Identification. PROCEEDINGS OF THE 10TH INTERNATIONAL CONFERENCE ON ROTOR DYNAMICS - IFTOMM, VOL. 4, v. 63, p. 15-pg., 2019-01-01. (15/20363-6, 16/13059-1)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

WU, Matheus Freire. Active rotor vibration control. 2020. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Mecânica Campinas, SP.