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Dynamic Model-Free Control of Parallel Planar Manipulators with Flexible Links

Grant number: 22/06816-1
Support Opportunities:Scholarships in Brazil - Master
Start date: December 01, 2022
End date: July 31, 2024
Field of knowledge:Engineering - Mechanical Engineering - Mechanical Engineering Design
Principal Investigator:Maira Martins da Silva
Grantee:Gustavo Corrêa de Oliveira
Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

Parallel manipulators may have higher speed/acceleration ratios and energy efficiency when compared with serial manipulators. In addition, reducing their components' inertia can further improve performance. However, this design alternative might yield vibrations requiring the implementation of novel joint and task space control strategies. While the former involves precise models, the latter might require adequate computation vision schemes. These requirements impose critical challenges. In this research project, two model-free control strategies are proposed and experimentally investigated using a 3RRR with flexible links. The first strategy comprises a single control loop: a position-based visual servo scheme. The second strategy is composed of two control loops: a position-based visual servo and strain-based feedback control schemes. The strain-based loop uses a sliding mode control using the signals obtained by strain gauges installed in the flexible links. Contributions to understanding the role of flexibility in robotic applications are expected.

News published in Agência FAPESP Newsletter about the scholarship:
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Scientific publications
(The scientific publications listed on this page originate from the Web of Science or SciELO databases. Their authors have cited FAPESP grant or fellowship project numbers awarded to Principal Investigators or Fellowship Recipients, whether or not they are among the authors. This information is collected automatically and retrieved directly from those bibliometric databases.)
DA SILVA, MAIRA MARTINS; COLOMBO, FERNANDA THAIS; DE OLIVEIRA, GUSTAVO CORREA; DE OLIVEIRA, LEOPOLDO PISANELLI. Hybrid vision/strain-based control strategy for a parallel manipulator with flexible links. MECHANISM AND MACHINE THEORY, v. 191, p. 14-pg., . (18/21336-0, 22/06816-1, 18/22760-0)
GERONEL, RENAN SANCHES; DE OLIVEIRA, GUSTAVO CORREA; RODRIGUES, GABRIEL KONDA; DA SILVA, MAIRA MARTINS. Active vibration control of a flexible parallel manipulator 3RRR. ROBOTICA, v. N/A, p. 19-pg., . (23/00687-8, 18/21336-0, 22/06816-1, 23/07834-6)
GERONEL, RENAN SANCHES; DE OLIVEIRA, GUSTAVO CORREA; DA SILVA, MAIRA MARTINS. Dual-loop control strategies for vibration attenuation of a flexible parallel manipulator. JOURNAL OF VIBRATION AND CONTROL, v. N/A, p. 13-pg., . (18/21336-0, 22/06816-1, 23/07834-6)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
OLIVEIRA, Gustavo Corrêa de. Dynamic model-free control of a parallel planar manipulator with flexible links. 2024. Master's Dissertation - Universidade de São Paulo (USP). Escola de Engenharia de São Carlos (EESC/SBD) São Carlos.