Latest Publications & Patents on Space Exploration
This is our latest selection of worldwide publications and patents in english on Space Exploration, between many scientific online journals, classified and focused on space exploration, astronaut, cosmonaut, spacecraft, extravehicular activity, launch vehicle, space station, terraforming, asteroid belt, lunar module, space probe, Mars rover, space telescope, zero gravity, interstellar, astrobiology and exoplanet.
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Design and Analysis of a Micro–Electro-Mechanical System Thruster for Small Satellites and Low-Thrust Propulsion
Published on 2025-02-21 by Yubin Zhong, Fabrizio Ponti, Francesco Barato, Guojun Xia, Siyu Li, Xiao Zhang, Tao Wu @MDPI
Abstract: As a cost-effective and versatile solution, small satellites are increasingly being considered for space exploration. However, one of the major challenges in deploying small satellites for high total impulse missions, particularly deep space exploration, lies in the propulsion system. These missions face strict constraints in terms of volume, mass, and power budgets. This paper proposes a potential solution to this issue through the design of a bipropellant MEMS thruster. Simulation results indi[...]
Our summary: Design of a bipropellant MEMS thruster for small satellites offers superior performance and is a promising alternative for high total impulse missions.
Micro-Electro-Mechanical System, Thruster, Small Satellites, Low-Thrust Propulsion
Publication
Asymmetric Deep Reinforcement Learning-Based Spacecraft Approaching Maneuver Under Unknown Disturbance
Published on 2025-02-20 by Shibo Shao, Dong Zhou, Guanghui Sun, Weizhao Ma, Runran Deng @MDPI
Abstract: Spacecraft approaching maneuver control normally uses traditional control methods such as Proportional–Integral–Derivative (PID) or Model Predictive Control (MPC), which require meticulous system design and lack robustness against unknown disturbances. To address these limitations, we propose an end-to-end asymmetric Deep Reinforcement Learning-based (DRL) spacecraft approaching maneuver (ADSAM) algorithm, which significantly enhances the robutsness of the space-appro[...]
Our summary: Asymmetric Deep Reinforcement Learning algorithm enhances spacecraft approaching maneuver control under unknown disturbances and POMDPs using RK4 method for accurate state transition, outperforming traditional methods.
Deep Reinforcement Learning, Spacecraft Maneuver, Unknown Disturbance, Robustness
Publication
Mission Re-Planning of Reusable Launch Vehicles Under Throttling Fault in the Recovery Flight Based on Controllable Set Analysis and a Deep Neural Network
Published on 2025-02-20 by Keshu Li, Wanqing Zhang, Han Yuan, Jing Zhou, Ying Ma @MDPI
Abstract: The frequent launches of reusable launch vehicles are currently the primary approach to support large-scale space transportation, necessitating high reliability in recovery flights. This paper proposes a mission re-planning scheme to address throttling faults, which significantly affect the feasibility of powered landing. To quantify the influence of throttling capability, the concept of “controllable set (CS)” is introduced. The CS is defined as the collection of all[...]
Our summary: Proposal of a mission re-planning scheme for reusable launch vehicles under throttling faults using controllable set analysis and deep neural network to enhance computational efficiency and feasibility probabilities.
mission re-planning, reusable launch vehicles, deep neural network, controllable set
Publication
Research on Disturbance Compensation Control and Parameter Identification of a Multiple Air-Bearing Planar Air-Floating Platform Based on ADRC
Published on 2025-02-19 by Chuanxiao Xu, Guohua Kang, Junfeng Wu, Zhen Li, Xinyong Tao, Jiayi Zhou, Jiaqi Wu @MDPI
Abstract: The spacecraft microgravity simulation air-bearing platform is a crucial component of the spacecraft ground testing system. Special disturbances, such as the flatness and roughness of the contact surface between the air bearings and the granite platform, increasingly affect the control accuracy of the simulation experiment as the number of air bearings increases. To address this issue, this paper develops a novel compensation control system based on Active Disturbance Rejection Control (ADRC), w[...]
Our summary: Research develops novel compensation control system based on ADRC for multiple air-bearing planar air-floating platform. Dynamic model established, cascade ADRC algorithm designed, parameters identified using Gauss-Newton iteration method. Experimental results show improved control precision for spacecraft ground simulation system.
ADRC, Parameter Identification, Air-Bearing Platform, Disturbance Compensation
Publication
Thickness Model of the Adhesive on Spacecraft Structural Plate
Published on 2025-02-19 by Yanhui Guo, Peibo Li, Yanpeng Chen, Xinfu Chi, Yize Sun @MDPI
Abstract: This paper establishes a physical model for the non-contact rotary screen coating process based on a spacecraft structural plate and proposes a theoretical expression for the adhesive thickness of the non-contact rotary screen coating. The thickness of the adhesive is a critical factor influencing the quality of the optical solar reflector (OSR) adhesion. The thickness of the adhesive layer depends on the equivalent fluid height and the ratio of the fluid flow rate to the squeegee speed below th[...]
Our summary: Physical model for non-contact rotary screen coating process based on spacecraft structural plate proposed. Theoretical expression for adhesive thickness of non-contact rotary screen coating established. Critical factor for quality of optical solar reflector adhesion.
adhesive thickness, non-contact rotary screen coating, spacecraft structural plate, rheology
Publication
Integrated Design and Experiment of a Micro-Vibration Isolation and Pointing Platform for Large Space Optical Payloads Based on Voice Coil Motors
Published on 2025-02-14 by Yilin Guo, Jian Zhou, Zehao Gao, Bo Feng, Minglong Xu @MDPI
Abstract: This paper presents the design of an integrated micro-vibration isolation and pointing platform with a four-leg structure, incorporating pitch and yaw adjustment functions using voice coil motors. The primary objective is to mitigate the impact of spacecraft-generated micro-vibrations on the pointing accuracy and imaging clarity of large space optical payloads while adhering to lightweight requirements. The research methodology encompasses three main phases. Initially, a simplified dynamic model[...]
Our summary: Design of integrated micro-vibration isolation and pointing platform using voice coil motors to mitigate spacecraft-generated vibrations and improve pointing accuracy for large space optical payloads. Ground test verification system demonstrates effective vibration isolation and pointing capabilities.
micro-vibration isolation, pointing platform, voice coil motors, PID control
Publication
A device for intercepting a space object
Patent published on the 2025-01-08 in UA under Ref UA158174U by OLES HONCHAR DNIPRO NATIONAL UNIV [UA] (Dron Mykola Mykhailovych [ua], Holubek Oleksandr Viacheslavovych [ua], Dreus Andrii Yuliiovych [ua], Dubovyk Liudmyla Hryhorivna [ua], Kulyk Oleksii Volodymyrovych [ua], Proroka Vladyslav Arkadiiovych [ua], Abaturov Anatolii Oleksandrovych [)
Abstract: A space object interceptor device contains a space object tracking means, a motion control system that provides motion control using space object tracking means, a jet engine, a communication means for interacting with a ground station and receiving information about the flight path, and interception means. Contains a suborbital launch vehicle with an active space object interceptor and at least one means of collecting and diverting debris formed as a result of possible destruction of a space ob[...]
Our summary: A device for intercepting space objects with a motion control system and jet engine, equipped with communication means for interacting with a ground station. Contains a suborbital launch vehicle with interception and debris diversion capabilities.
space object interceptor, motion control system, jet engine, communication means
Patent
Information reception station from spacecraft remote sensing of the earth
Patent published on the 2025-01-01 in UA under Ref UA158094U by POLISSIA NATIONAL UNIV [UA] (Skydan Oleh Vasylovych [ua], Pyvovar Petro Viktorovych [ua], Topolnytskyi Pavlo Petrovych [ua], Franzhi Oleksandr Viktorovych [ua], Tokar Andrii Mykolaiovych [ua], Fedoniuk Tetiana Pavlivna [ua], Tereshchuk Volodymyr Ihorovych [ua], Rozhkov )
Abstract: The information receptionstation from the Earth’s remote sensing spacecraft consists of an antenna system, a high-frequency path, an antenna control system, a radio receiver and a data processing device. The high-frequency path is made in the form of two high-frequency amplifiers with band filters. The first amplifier with its strip filter is located on the irradiator of the antenna system and is connected directly to its output. The second amplifier with its strip filter is located on the ant[...]
Our summary: Information reception station from spacecraft remote sensing of the earth. Antenna system includes high-frequency path with amplifiers and band filters. Radio receiver connected to output of second amplifier. Antenna control system has computing device for targeting and control signals, support-rotating device with drives.
antenna system, high-frequency path, radio receiver, data processing device
Patent
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