Active vibration control of ground resonance phenomenon in helicopters using piezoelectric materials incorporated on the blades

• Grant number: 16/05988-2
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Start date: July 01, 2016
• End date: June 30, 2019
• Field of knowledge: Engineering - Mechanical Engineering - Mechanics of Solids
• Principal Investigator: Gustavo Luiz Chagas Manhães de Abreu
• Grantee: José Augusto Ignácio da Silva
• Host Institution: Faculdade de Engenharia (FEIS). Universidade Estadual Paulista (UNESP). Campus de Ilha Solteira. Ilha Solteira , SP, Brazil

Abstract

This work focus on the application of active control technology by using piezoelectric materials for the structural vibration control in helicopters caused by unstable phenomenon known as ground resonance helicopters that can carry the complete destruction of the aircraft in a few seconds. The Newton-Euler will be used in mathematical modeling of the rotor-blades-fuselage assembly. Each helicopter blade is modeled as an Euler-Bernoulli's beam containing embedded piezoelectric materials. The assumed modes method is used for constructing the nominal model of the plant and it will be assigned a constant aerodynamic profile along its length and cross section. Due to inherent uncertainties inserted in the mathematical formulation procedure, the present work proposes the robust controller design for this control problem. The fundamental formulation of this controller is discussed and its robustness, stability and performance are shown through numeric simulations. (AU)

Scientific publications

(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)

IGNACIO DA SILVA, JOSE A.; BUENO, DOUGLAS D.; DE ABREU, GUSTAVO L. C. M.. On the controllers' design to stabilize ground resonance helicopter. JOURNAL OF VIBRATION AND CONTROL, v. 25, n. 23-24, p. 2894-2909, DEC 2019. (16/05988-2)

IGNACIO DA SILVA, JOSE AUGUSTO; BUENO, DOUGLAS DOMINGUES; DE ABREU, GUSTAVO L. C. M.. A strategy to suppress limit cycle oscillations in helicopter ground resonance including landing gear nonlinearities. AEROSPACE SCIENCE AND TECHNOLOGY, v. 105, p. 19-pg., 2020-10-01. (16/05988-2)

Academic Publications

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

SILVA, José Augusto Ignácio da. Robust ground resonance suppression in helicopters considering structural uncertainties, actuator fault and concentrated nonlinearities. 2019. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Engenharia. Ilha Solteira Ilha Solteira.