Article
Astronomy & Astrophysics
Natan A. Eismont, Vladislav A. Zubko, Andrey A. Belyaev, Ludmila Zasova, Dmitriy A. Gorinov, Alexander Simonov, Ravil R. Nazirov, Konstantin S. Fedyaev
Summary: This study explores the usage of Venus gravity assist to increase accessible landing areas and potentially reach any point on the surface of Venus. It may reduce the energy required for launch and the flight duration compared to landing without gravity assist near a planet.
Article
Astronomy & Astrophysics
V. A. Zubko
Summary: This article analyzes the use of a promising technique to design flight trajectories to Venus, delivering a lander to scientifically significant regions on the planet's surface using gravity-assist maneuvers and resonant orbits. It explores the limitations of the classical approach used in previous missions and considers the constraints imposed by the spacecraft's requirements. The article demonstrates the efficiency of this technique in selecting landing sites and orbital paths.
ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
J. Rabinovitch, K. M. Stack
Summary: This study explores a method for identifying safe landing sites on Venus by combining surface panoramas, Magellan radar properties, and global geological maps. The method identified 178 safe ellipses on Venus, with 36 of them meeting the emissivity criteria of the Venera 13 landing site.
Article
Astronomy & Astrophysics
N. A. Eismont, R. R. Nazirov, K. S. Fedyaev, V. A. Zubko, A. A. Belyaev, L. Zasova, D. A. Gorinov, A. Simonov
Summary: Using gravity assist maneuvers near Venus with resonant orbits equal to the Venusian period significantly expands reachable landing areas, with a slightly increased solving time.
ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS
(2021)
Article
Engineering, Aerospace
Vladislav A. Zubko, Natan A. Eismont, Konstantin S. Fedyaev, Andrey A. Belyaev
Summary: This paper discusses the problem of constructing a spacecraft trajectory to Venus that includes landing a lander on a specific region of the planet's surface. A new celestial mechanics method involving a gravity assist maneuver near Venus is proposed to transfer the spacecraft to a heliocentric orbit that is resonant with Venus' orbit, allowing for landing in the desired region upon the next approach. It is found that the best resonant orbit, in terms of characteristic velocity cost, has a 1:1 ratio of period to Venus' orbital period. The procedure for selecting a resonant orbit based on desired landing coordinates and launch date is described. An example calculation for a flight trajectory that achieves landing in the Vellamo-South region of Venus' surface in 2031 from Earth is presented.
ADVANCES IN SPACE RESEARCH
(2023)
Article
Engineering, Aerospace
Hongwei Han, Xiangyu Li, Dong Qiao
Summary: In this study, a novel AGA-maneuver capture scheme combining aerodynamic forces and the dynamics of a three-body system is proposed for low-energy interplanetary transfers. The optimization of atmospheric trajectories using a successive approximation-based method is demonstrated to be effective and reliable through numerical simulations.
Article
Engineering, Aerospace
Jhonathan O. Murcia Pineros, Antonio F. B. A. Prado
Summary: Swing-by maneuver controls the energy variation of spacecraft through angles, velocity, and distance. The study focuses on the impact of bank angle control on aerodynamic forces and energy variations during the maneuver, providing new insights and alternatives for collision analysis and energy modulation in spacecraft trajectories.
JOURNAL OF SPACECRAFT AND ROCKETS
(2021)
Article
Engineering, Aerospace
Stefano Carletta, Mauro Pontani, Paolo Teofilatto
Summary: This paper discusses the possibility of using multibody dynamics and nonlinear control to inject a microsatellite into the desired orbit around Mars. The results show that this combination is a viable and effective strategy for microsatellite missions to Mars.
Article
Mechanics
Yu F. Golubev, A. Grushevskii, V. V. Koryanov, A. G. Tuchin, D. A. Tuchin
Summary: This paper generalizes Rutherford's formula for charged particle scattering to gravitational scattering, introducing an effective cross section for gravity assists. The generalized formula is shown to significantly increase the efficiency of searching for interplanetary ballistic flight scenarios.
Article
Engineering, Aerospace
Su-Jin Choi, John Carrico, Mike Loucks, Hoonhee Lee, Sejin Kwon
Summary: This study demonstrates the possibility of launching a satellite to Geostationary Equatorial orbit from the mid-latitudes of the northern hemisphere using a lunar gravity assist transfer. The analysis shows that different LGA paths can result in lower increment V requirements for geostationary insertion.
JOURNAL OF THE ASTRONAUTICAL SCIENCES
(2021)
Article
Astronomy & Astrophysics
V. N. Gubenko, I. A. Kirillovich, D. V. Gubenko, V. E. Andreev, T. V. Gubenko
Summary: Radio occultation measurements of Venera-15 and -16 satellites from October 16 to 31, 1983 were used to analyze internal waves in the northern polar atmosphere of Venus. The observations revealed small-scale intensity fluctuations caused by vertically propagating internal gravity waves. The developed model for radiative damping in Venus' atmosphere suggests a range of intrinsic frequencies and wavelength ratios for the identified internal waves.
SOLAR SYSTEM RESEARCH
(2021)
Article
Engineering, Aerospace
V. A. Zubko, A. A. Sukhanov, K. S. Fedyaev, V. V. Koryanov, A. A. Belyaev
Summary: The article discusses trajectory design to the trans-Neptunian object (90377) Sedna for launch between 2029-2034. It provides possible flight scenarios and the best launch opportunities. The research shows that direct flight is impractical, while gravity assist manoeuvres are more promising for exploration missions.
ADVANCES IN SPACE RESEARCH
(2021)
Article
Engineering, Aerospace
Vladislav Zubko
Summary: The current research focuses on designing fast trajectories to approach the trans-Neptunian object Sedna for studying its surface and composition. Such studies could provide unique data about the early stages of Solar System evolution. Different flight schemes were explored, and it was found that using Delta VEGA and Jupiter-Neptune gravity assist maneuvers leads to the most efficient and cost-effective trajectory, with higher payload capabilities.
Article
Engineering, Aerospace
Vladislav Zubko
Summary: This paper deals with the construction of a flight scheme to Venus, in which a spacecraft makes a gravity assist maneuver and transition to a resonant orbit to re-encounter with Venus, passing by a minor celestial body. 117 candidate asteroids from the NASA JPL catalogue with a diameter exceeding 1 km were selected. Flight trajectories that meet the criteria of impulse-free flyby of both Venus and the asteroid, and subsequent landing on the surface of Venus were found within the launch date interval from 2029 to 2050. The trajectory of the spacecraft flight from Earth to Venus, including flyby of Venus and asteroids, and subsequent landing on the surface of Venus, was analyzed.
Article
Engineering, Aerospace
Vladislav A. Zubko, Natan A. Eismont, Konstantin S. Fedyaev, Andrey A. Belyaev
Summary: This paper discusses the problem of constructing a spacecraft trajectory to Venus that includes landing a lander on a specific region of the planet's surface. A new celestial mechanics method involving a gravity assist maneuver near Venus is proposed to transfer the spacecraft to a heliocentric orbit that is resonant with Venus' orbit, allowing for landing in the desired region upon the next approach. It is found that the best resonant orbit, in terms of characteristic velocity cost, has a 1:1 ratio of period to Venus' orbital period. The procedure for selecting a resonant orbit based on desired landing coordinates and launch date is described. An example calculation for a flight trajectory that achieves landing in the Vellamo-South region of Venus' surface in 2031 from Earth is presented.
ADVANCES IN SPACE RESEARCH
(2023)
Article
Astronomy & Astrophysics
V. A. Zubko
Summary: This article analyzes the use of a promising technique to design flight trajectories to Venus, delivering a lander to scientifically significant regions on the planet's surface using gravity-assist maneuvers and resonant orbits. It explores the limitations of the classical approach used in previous missions and considers the constraints imposed by the spacecraft's requirements. The article demonstrates the efficiency of this technique in selecting landing sites and orbital paths.
ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
Natan A. Eismont, Vladislav A. Zubko, Andrey A. Belyaev, Ludmila Zasova, Dmitriy A. Gorinov, Alexander Simonov, Ravil R. Nazirov, Konstantin S. Fedyaev
Summary: This study explores the usage of Venus gravity assist to increase accessible landing areas and potentially reach any point on the surface of Venus. It may reduce the energy required for launch and the flight duration compared to landing without gravity assist near a planet.
Article
Astronomy & Astrophysics
N. A. Eismont, R. R. Nazirov, K. S. Fedyaev, V. A. Zubko, A. A. Belyaev, L. Zasova, D. A. Gorinov, A. Simonov
Summary: Using gravity assist maneuvers near Venus with resonant orbits equal to the Venusian period significantly expands reachable landing areas, with a slightly increased solving time.
ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
V. A. Zubko, A. A. Sukhanov, K. S. Fedyaev, V. V. Koryanov, A. A. Belyaev
Summary: The optimal flight scenario for reaching the trans-Neptunian object Sedna in 2029 involves a trajectory that includes gravity assists from Venus, Earth, and Jupiter. By considering flight time restrictions and total Delta V, the study determined that the most cost-effective route is the Earth-Venus-Earth-Earth-Jupiter flight, ensuring Delta V cost does not exceed 4.64 km s(-1) within a 30-year timeframe. Furthermore, the researchers explored the possibility of enhancing the flight scenario by including close flybys of asteroids such as (20) Massalia and (5080) Oya in the trajectory.
ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS
(2021)
Proceedings Paper
Engineering, Aerospace
N. A. Eismont, V. V. Koryanov, K. S. Fedyaev, S. A. Bober, V. A. Zubkov, A. A. Belyaev
Summary: The paper examines determining accessible landing areas on the surface of Venus within a specific period by extending launch windows, taking into account payload mass and maximum overload level constraints. Using the Venera-D planned mission requirements as initial data, it explores the possibility of reaching Venus on specific orbits. It concludes that extending the launch window to 2031 can broaden reachable landing areas, with the cost presented in terms of payload.
XLIV ACADEMIC SPACE CONFERENCE: DEDICATED TO THE MEMORY OF ACADEMICIAN S.P. KOROLEV AND OTHER OUTSTANDING RUSSIAN SCIENTISTS - PIONEERS OF SPACE EXPLORATION
(2021)
Article
Engineering, Aerospace
A. I. Krikunova, A. D. Cheshko, V. V. Krivets
Summary: Fire safety is crucial for the development of efficient and safe energy systems for space objects. This paper focuses on studying the influence of gravity on combustion processes and analyzes the dynamics of inverted conical methane-air flame under external acoustic excitation. The results show that at high excitation frequencies, the intensity of vortex generation is similar to that observed in experiments with normal gravity, indicating the dominance of acoustic mechanism. Additionally, at an external excitation frequency of 240 Hz, significant growth in shear vortex diameters and increased amplitude of perpendicular oscillations of flame branches were observed, indicating the most intensive large scale instability of flow.
Article
Engineering, Aerospace
Liya Huang, Mingquan Gong, Jiarui Zhang, Kun Liang, He Yang
Summary: Metallized gel propellants with exceptional stability and remarkable shear-thinning properties were successfully synthesized by utilizing cooperative hydrogen bonding between polymer octanoyl cellulose and the small Thixatrol ST molecule.
Article
Engineering, Aerospace
Clemence Poirier, Michelle Hermes, Marco Aliberti
Summary: This paper examines the role of space-based data in European climate policies and assesses the barriers to the use of space technology in climate policymaking in European countries. The research findings indicate that while satellite data is crucial for scientific research and climate policies, the role of space is not accurately reflected in European climate policies.
Article
Engineering, Aerospace
Yan-mei Zhou, Ji-ping Wu, Wei Huang, Gautam Choubey
Summary: This study investigates the combustion performance of sinusoidal pulsed jets in supersonic flows using numerical simulations. It is found that the pulsed jets can significantly improve combustion efficiency.
Article
Engineering, Aerospace
Wang Zhao, Shujun Tan, Yiliang Guo
Summary: This study proposes an adaptive Pogo active suppression controller design method that utilizes measured acceleration as feedback. The eigenspace transformation theory is employed to design dimensional reduced models for observer and adaptive controller, effectively addressing the issues of model parameter uncertainty and time-varying parameters. Simulation analysis of a certain type of rocket demonstrates the effectiveness of the proposed method.
Article
Engineering, Aerospace
A. V. Nebylov, V. A. Nebylov
Summary: This article discusses the safety issues of astronauts during the landing process and investigates how rescuers can effectively carry out rescue missions. The article also takes into account the special maritime conditions of the Vostochny cosmodrome.
Article
Engineering, Aerospace
Pietro Davide Maddio, Rosario Sinatra, Alberto Meschini, Riccardo Rigato, Marco Lapi, Davide Scarozza, Alessandro Cammarata
Summary: This study aims to develop a versatile cable net generation algorithm for designing offset cable nets in parabolic reflectors. The study proposes a methodology that leverages quasi-geodesic curves and introduces two types of these curves. The study also presents various solutions for different cable net layouts and introduces a quality index based on an equilateral triangle cable net.
Article
Engineering, Aerospace
Nahum Melamed, Tom Heinsheimer
Summary: Traditional methods of asteroid trajectory modification rely on impact or nuclear detonation, while centrifugal propulsion offers an alternative approach. The centrifuge system lands on the asteroid and gradually adjusts the trajectory using momentum transfer. This method allows for flexibility in operation parameters and has the potential to be used in planetary defense and other space missions.
Article
Engineering, Aerospace
Andrew Barth, Ou Ma
Summary: As humans continue to explore the surfaces of the Moon and Mars, the use of distributed heterogeneous robot teams can increase the chances of success by utilizing the complementary capabilities and synergy of the team members. Effective cooperation and collaboration between the members of a robot team is crucial, but defining a metric for effective cooperation is challenging. This paper presents a method for determining reward criteria that can be used for training robot swarm through reinforcement learning techniques. The trained robot team exhibits high success rates and cooperative behavior in test environments, demonstrating the robustness and scalability of the training strategies.
Article
Engineering, Aerospace
Kaijie Zhu, Qiquan Quan, Dewei Tang, Yachao Dong, Kaiyi Wang, Bo Tang, Qi Wu, Zongquan Deng
Summary: This study proposes a deployable Mars quadcopter for air patrol and sampling missions. By describing its structure, avionics architecture, and autonomous flight control method, it provides a feasible framework for future Mars flight sampling missions.
Article
Engineering, Aerospace
Avishai Melamed, Adi Rao, Sarah Kreps, Erika Palmer
Article
Engineering, Aerospace
Colin Hunter, Avinkrishnan Vijayachandran, Anthony M. Waas
Summary: Deployable structures inspired by origami have gained significant prominence in space applications. Recent advancements in multi-material additive manufacturing have opened new possibilities for the fabrication of monolithic structures. This paper presents a novel framework for designing deployable structures using viscoelastic hinges incorporated into rigid plates. Experimental results demonstrate the effectiveness and feasibility of these hinge designs in real-world applications.
Article
Engineering, Aerospace
Aleksander V. Efremov, Mikhail S. Tiaglik, Aleksey S. Tiaglik, Iliyas Kh Irgaleev, Tatyana V. Voronka
Summary: Theoretical and experimental studies were conducted to determine the best kind of information presented on a predictive display for the highest accuracy in space mission execution, while considering reduced propellant consumption.
Article
Engineering, Aerospace
Fuwen Liang, Long Miao, Feng Tian, Jiahui Song, Ningfei Wang, Xiao Hou
Summary: This study investigates the influence of deployment friction on the dynamic characteristics of nonconductive space tether through experimental measurement and numerical simulation. The results show that deployment friction significantly limits the uncontrolled tether deployment, while increasing the initial deployment velocity and satellite effective mass, as well as decreasing orbital altitude, can enhance the deployment capability and dynamic stability. In addition, an optimal matching relationship between tether length and satellite total mass is proposed, which is of substantial importance for the design of nonconductive space tether systems.
Article
Engineering, Aerospace
Amirah R. Algethami, Colin R. McInnes, Matteo Ceriotti
Summary: This paper utilizes the Hill's approximation model to manipulate the relative motion of two asteroids by three impulses, resulting in their bound binary motion in Earth's orbit. The feasibility of this strategy is demonstrated, and potential applications for parking small captured near-Earth asteroids in Earth's orbit are discussed.
