Advances in Astronautics Science and Technology最新文献_第3页

System Technology for Improving the Performance of Manned Lunar Exploration 提高载人月球探测性能的系统技术

Advances in Astronautics Science and Technology Pub Date : 2024-04-07 DOI: 10.1007/s42423-024-00152-4

Hailian Zhang

引用次数: 0

Numerical Investigation on Supersonic Airflow Around Tangent Ogive Wedge of Varying Fineness Ratio 细度比变化的切弧形楔块周围超音速气流的数值研究

Advances in Astronautics Science and Technology Pub Date : 2024-04-02 DOI: 10.1007/s42423-024-00151-5

Sonia Chalia, Manish Naagar, Neeraj Kumar Gahlot

{"title":"Numerical Investigation on Supersonic Airflow Around Tangent Ogive Wedge of Varying Fineness Ratio","authors":"Sonia Chalia, Manish Naagar, Neeraj Kumar Gahlot","doi":"10.1007/s42423-024-00151-5","DOIUrl":"10.1007/s42423-024-00151-5","url":null,"abstract":"<div><p>The purpose of this study is to report the numerical investigation on the aerodynamic performance of tangent ogive wedge of varying fineness ratio from 2 to 4 when fully submerged in an incoming supersonic airflow having a velocity of Mach 2.5 and at zero degrees angle of attack. Numerical simulations have been carried out for flow over tangent ogive wedge using ANSYS CFD. A computation domain was created with appropriate geometrical constraints and was meshed into elements of optimum size. The supersonic airflow was simulated to observe and analyze the effects of change in fineness ratio of tangent ogive wedge on various aerodynamic parameters of interest under given boundary conditions and flow physics. It was observed that tangent ogive wedge with increasing fineness ratio experienced decreasing pressure drag force. The nature of shock generated for various tangent ogive wedge has been compared to understand airflow/shock interactions. The presented study revealed the dependency of different aerodynamic parameters on the fineness ratio of tangent ogive wedge, which may be efficiently utilized in missiles, rockets, and bullet design. The reported findings would contribute towards optimizing tangent ogive wedge shapes for supersonic missiles, rockets, and bullets, delivering optimum aerodynamic performance under given operating conditions.</p></div>","PeriodicalId":100039,"journal":{"name":"Advances in Astronautics Science and Technology","volume":"7 3-4","pages":"209 - 220"},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140755624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Crawling Robot Path Planning on the Surface of the CubeSat 立方体卫星表面的爬行机器人路径规划

Advances in Astronautics Science and Technology Pub Date : 2024-02-15 DOI: 10.1007/s42423-024-00149-z

Chen Yihan, Cao Mingtao, Liu Wei, Yu Yuxin, Shi Pangbo

引用次数: 0

RETRACTED ARTICLE: AI and Robots Impact on Space Exploration 人工智能和机器人对太空探索的影响

Advances in Astronautics Science and Technology Pub Date : 2024-02-01 DOI: 10.1007/s42423-023-00147-7

V. Venkataramanan, Aashi Modi, Kashish Mistry

引用次数: 0

Application of CubeSat Technologies for Research and Exploration on the Lunar Surface 立方体卫星技术在月球表面研究和探索中的应用

Advances in Astronautics Science and Technology Pub Date : 2023-12-29 DOI: 10.1007/s42423-023-00144-w

Maximilian von Unwerth, Lennart Fox, Max Manthey, Robert Mahoney, Simon Stapperfend, Igor Kolek, Enrico Stoll, Irene Selvanathan

{"title":"Application of CubeSat Technologies for Research and Exploration on the Lunar Surface","authors":"Maximilian von Unwerth, Lennart Fox, Max Manthey, Robert Mahoney, Simon Stapperfend, Igor Kolek, Enrico Stoll, Irene Selvanathan","doi":"10.1007/s42423-023-00144-w","DOIUrl":"10.1007/s42423-023-00144-w","url":null,"abstract":"<div><p>In view of ESA’s horizon goal of establishing a human presence on the Moon by 2040, the Earth’s moon is increasingly coming into the focus of research and industry. Lunar exploration can benefit from systems developed for low-Earth orbit, as the environmental conditions are overlapping. The development of the CubeSat industry in recent decades has led to a revolution in access to near-Earth space. The goal of Neurospace and its partners is to explore the similarities of both environments for a direct application of existing CubeSat technologies for lunar exploration. Using an open standard and a tiered approach for the development of lunar rovers will allow future missions to focus more on the actual use case rather than the individual development, qualification, and certification of required components. This paper introduces the HiveR rover and provides a classification of the future importance of robotic systems for lunar exploration. It also discusses, in review of past lunar missions, how such rovers differ from previous lunar rovers, and how important they can be in supporting increasingly complex missions. The similarities and differences between the low-Earth orbit and the lunar surface are outlined. Based on this, the new challenges in adapting existing CubeSat technologies for robotics on the lunar surface will be discussed and initial solutions presented. As examples of potential payloads, various experiments are presented, such as a robot arm that was developed to fit in a 1 U volume. It can be used for docking operations between individual systems or various tool handling operations.</p></div>","PeriodicalId":100039,"journal":{"name":"Advances in Astronautics Science and Technology","volume":"6 2-4","pages":"57 - 72"},"PeriodicalIF":0.0,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139144625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Energy Generation Using Cyclically Asymmetrically Distributed Charges 利用周期性非对称分布电荷发电

Advances in Astronautics Science and Technology Pub Date : 2023-12-29 DOI: 10.1007/s42423-023-00145-9

J. D. W. Tsakok

引用次数: 0

Error Compensation of a Low-Cost Analogue Sun Sensor for Micro-/Nano-satellites 用于微型/纳米卫星的低成本模拟太阳传感器的误差补偿

Advances in Astronautics Science and Technology Pub Date : 2023-12-22 DOI: 10.1007/s42423-023-00142-y

Miao Feng, Xin Hu, Xiaozhou Yu

引用次数: 0

Optimal Guidance for Orbital Pursuit-Evasion Games Based on Deep Neural Network 基于深度神经网络的轨道追逐-入侵博弈优化指导

Advances in Astronautics Science and Technology Pub Date : 2023-12-15 DOI: 10.1007/s42423-023-00143-x

Xin Zeng, Weilin Wang, Yurong Huo

引用次数: 0

Shock-Wave/Boundary-Layer Interactions in Scramjet Intakes with Axisymmetric and Planar Isolators 带有轴对称和平面隔离器的 Scramjet 入口中的冲击波/边界层相互作用

Advances in Astronautics Science and Technology Pub Date : 2023-12-11 DOI: 10.1007/s42423-023-00146-8

S. Sharath, Tamal Jana, Mrinal Kaushik

{"title":"Shock-Wave/Boundary-Layer Interactions in Scramjet Intakes with Axisymmetric and Planar Isolators","authors":"S. Sharath, Tamal Jana, Mrinal Kaushik","doi":"10.1007/s42423-023-00146-8","DOIUrl":"10.1007/s42423-023-00146-8","url":null,"abstract":"<div><p>The present study numerically investigates the shock-wave/boundary-layer interactions (SWBLIs) inside a scramjet intake at Mach 4.03. A 2D-planar and an axisymmetric intake are investigated using commercial code ANSYS-Fluent. The density gradient for intakes is computed to investigate and compare the shock cell structure and the separation bubble size. Besides, the velocity and pressure distributions are analyzed for planar and axisymmetric intakes. It is observed from the wall pressure data that the shock strength in the case of axisymmetric intake is lesser than the planar intake. Also, the interaction region in the axisymmetric intake is shifted further downstream with a progressive decrease in shock angle. The recirculation zone or the separation bubble size is minimal for the axisymmetric intake than for planar intake, resulting in higher effective mass flow into the combustion chamber. It can be observed that although the cowl surface experiences the maximum wall static pressure, the recirculation zone formed over the cowl surface is comparatively smaller than that of the ramp surface. The normalized total pressures at the isolator exit indicate that the axisymmetric intake is more efficient in conserving the flow energy than the planar intake. The temperature rise over the ramp surface is higher for planar intake; however, the temperature fluctuations over the ramp surface are more for axisymmetric intake.</p></div>","PeriodicalId":100039,"journal":{"name":"Advances in Astronautics Science and Technology","volume":"6 2-4","pages":"133 - 142"},"PeriodicalIF":0.0,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138980930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Infant Milk Powder After γ-Irradiation and Accelerated Storage as an Indicator for Space Food Stability 作为太空食品稳定性指标的γ-辐照和加速储存后婴儿奶粉

Advances in Astronautics Science and Technology Pub Date : 2023-12-08 DOI: 10.1007/s42423-023-00140-0

Peter Watkins, Kai Knoerzer, Mélanie L. Ferlazzo, Richard B. Banati, P. Adorno, K. Stockham, T. Stobaus

{"title":"Infant Milk Powder After γ-Irradiation and Accelerated Storage as an Indicator for Space Food Stability","authors":"Peter Watkins, Kai Knoerzer, Mélanie L. Ferlazzo, Richard B. Banati, P. Adorno, K. Stockham, T. Stobaus","doi":"10.1007/s42423-023-00140-0","DOIUrl":"10.1007/s42423-023-00140-0","url":null,"abstract":"<div><p>At present, terrestrial food sources are used to provision astronauts for engaged in space missions confined to low Earth orbit. However, in the future, long-duration space exploration is planned for the Moon, and, beyond that, to Mars. Food for such extended missions needs a shelf-life of up to 5 years, a sustained nutritional and product quality. Space radiation can impact on such food, but little is known of what impact this could have on these materials. In this study, we evaluated the impact of radiation dosage and accelerated storage on infant milk powder (a formulated product consisting of proteins, fat, lactose, vitamins, and minerals), to evaluate its potential as an indicator for (chemical) space food stability. The milk powder was irradiated at different dosages (0, 2, 10, and 50 kGy) and underwent different storage conditions (20 or 50 °C for 0, 14, 28, 56, and 77 days), with subsequent color measurement and chemical analysis. It was found that <i>γ</i> irradiation had an impact on the milk powder’s color. It was speculated that this change was related to the Maillard reaction. Some changes were also found with the chemical composition, particularly, vitamins A and C, unexpectedly due to their susceptibility to radiation. Notable differences were not observed though for other components (vitamins, fatty acids, and amino acids). We conclude that infant milk powder shows great promise as an indicator of the impact of <i>γ</i> radiation, and accelerated storage, for (chemical) space food stability.</p></div>","PeriodicalId":100039,"journal":{"name":"Advances in Astronautics Science and Technology","volume":"6 2-4","pages":"117 - 132"},"PeriodicalIF":0.0,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42423-023-00140-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138588772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0