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Solutions for motion around artificial equilibrium points

Grant number: 19/18480-5
Support Opportunities:Scholarships abroad - Research Internship - Post-doctor
Effective date (Start): January 01, 2020
Effective date (End): December 31, 2020
Field of knowledge:Engineering - Aerospace Engineering - Flight Dynamics
Principal Investigator:Antônio Fernando Bertachini de Almeida Prado
Grantee:Allan Kardec de Almeida Junior
Supervisor: Daniele Mortari
Host Institution: Instituto Nacional de Pesquisas Espaciais (INPE). Ministério da Ciência, Tecnologia e Inovações (Brasil). São José dos Campos , SP, Brazil
Research place: Texas A&M University, United States  
Associated to the scholarship:18/07377-6 - Spacecraft motion around artificial equilibrium points, BP.PD


This is a research proposal for an internship to be done by the candidate at Texas A&M University under the supervision of professor Daniele Mortari, associated with a postdoctoral research in progress supervised by Antonio Fernando Bertachini de Almeida Prado in Brazil. In this proposal, the candidate will investigate key points relative to his postdoctoral research project previously submitted to FAPESP. The work plan of his research is based on investigations about the motion of a spacecraft around artificial equilibrium points, development and application of integral indices to measure the level of perturbation of an orbit and to study orbital transfer maneuvers. The research proposal regarding the internship encompasses all of these topics through in-depth investigations of each of them. In this research, mathematical tools recently developed by professor Daniele Mortari and co-authors will be used to describe the motion of a spacecraft around artificial equilibrium points. Applications will be done for a spacecraft under the influence of the atmospheric drag. The integral indices subject will be studied in depth as part of the postdoctoral work plan of the candidate. In the first moment, investigations will be done using indices available in the literature, although new indices will be defined and subjected to investigations about their validity too. These indices will be applied in many problems in astrodynamics. The first application of the indices is to minimize the required fuel to close an orbit by using impulses. These subjects are strictly related to the postdoctoral research project of the candidate and are in-depth researches about his studies so far. (AU)

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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)
DE ALMEIDA JR, ALLAN KARDEC; COUTO OLIVEIRA, GERALDO MAGELA; BERTACHINI DE ALMEIDA PRADO, ANTONIO FERNANDO. Artificial equilibrium points and bi-impulsive maneuvers to observe 243 Ida. CHINESE JOURNAL OF AERONAUTICS, v. 34, n. 1, p. 410-423, . (18/07377-6, 19/18480-5, 16/24561-0)
DE ALMEIDA JR, ALLAN KARDEC; MURCIA PINEROS, JHONATHAN ORLANDO; BERTACHINI DE ALMEIDA PRADO, ANTONIO FERNANDO. On the use of a continuous thrust to find bounded planar trajectories at given altitudes in Low Earth Orbits. SCIENTIFIC REPORTS, v. 10, n. 1, . (16/24561-0, 19/18480-5, 18/07377-6)
DE ALMEIDA JUNIOR, ALLAN KARDEC; PRADO, ANTONIO F. B. A.; MORTARI, DANIELE. Using the theory of functional connections to create periodic orbits with a linear variable thrust. NEW ASTRONOMY, v. 104, p. 13-pg., . (19/18480-5, 18/07377-6, 16/24561-0)
DE ALMEIDA JUNIOR, ALLAN K.; JOHNSTON, HUNTER; LEAKE, CARL; MORTARI, DANIELE. Fast 2-impulse non-Keplerian orbit transfer using the Theory of Functional Connections. EUROPEAN PHYSICAL JOURNAL PLUS, v. 136, n. 2, . (18/07377-6, 16/24561-0, 19/18480-5)
DE ALMEIDA JUNIOR, ALLAN KARDEC, JR.; BERTACHINI DE ALMEIDA PRADO, ANTONIO FERNANDO; YOKOYAMA, TADASHI; SANCHEZ, DIOGO MERGUIZO. Searching for orbits to observe the poles of celestial bodies. Advances in Space Research, v. 66, n. 10, p. 24-pg., . (19/18480-5, 16/24561-0, 18/07377-6, 14/22295-5)
VENDITTI, FLAVIANE C. F.; DE ALMEIDA JUNIOR, ALLAN K.; PRADO, ANTONIO F. B. A.. Using an integral index to search for orbits around oblate spheroids. Planetary and Space Science, v. 192, p. 9-pg., . (19/18480-5, 16/24561-0)

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