Acta Astronautica最新文献_第8页

3D printing LDPE/lunar regolith simulant composite: manufacturing with in-situ resources on the moon 3D打印LDPE/月球风化模拟复合材料：利用月球就地资源制造

IF 3.4 2区物理与天体物理

Acta Astronautica Pub Date : 2025-09-02 DOI: 10.1016/j.actaastro.2025.08.012

S. Moazen , F.P. Gosselin , I. Tabiai , M. Dubé

{"title":"3D printing LDPE/lunar regolith simulant composite: manufacturing with in-situ resources on the moon","authors":"S. Moazen , F.P. Gosselin , I. Tabiai , M. Dubé","doi":"10.1016/j.actaastro.2025.08.012","DOIUrl":"10.1016/j.actaastro.2025.08.012","url":null,"abstract":"<div><div>Additive manufacturing is essential for space missions, enabling on-demand production of components where resupply from Earth is limited. Fused deposition modeling (FDM) offers a promising route for repurposing plastic packaging waste into 3D printing feedstock. Low-density polyethylene (LDPE), commonly used in space packaging, can be combined with lunar regolith simulant to increase material availability for in-situ resource utilization (ISRU). However, the method of incorporating regolith into the polymer matrix affects filament quality and printability. Here, we compare single-screw and twin-screw extrusion techniques for producing LDPE/regolith composite filaments containing up to 30 wt% regolith. Both methods successfully produced filaments suitable for FDM, though single-screw extrusion required a second extrusion step above 10 wt% regolith. Filaments were evaluated for diameter consistency and printability, including the successful fabrication of NASA-designed parts. Regolith addition enhances print performance by improving overhang formation, gap bridging, and reducing warpage. Tensile testing shows increased stiffness without compromising strength up to 20 wt% regolith. These results demonstrate that LDPE and lunar regolith can be effectively processed into printable feedstock, supporting sustainable manufacturing strategies for lunar applications and advancing terrestrial plastic waste recycling.</div></div>","PeriodicalId":44971,"journal":{"name":"Acta Astronautica","volume":"237 ","pages":"Pages 409-420"},"PeriodicalIF":3.4,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145009038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Progress and strategies in advanced aerospace materials for extreme environments: A review 极端环境先进航空材料研究进展与对策综述

IF 3.4 2区物理与天体物理

Acta Astronautica Pub Date : 2025-08-30 DOI: 10.1016/j.actaastro.2025.08.011

Fang Xie , Yinghui Yang , Zhongxin Ping , Xiaobo Gong , Zeping Dong , Wanting Xu , Jianyong Yu , Wang Yao , Yuzhen Dong

{"title":"Progress and strategies in advanced aerospace materials for extreme environments: A review","authors":"Fang Xie , Yinghui Yang , Zhongxin Ping , Xiaobo Gong , Zeping Dong , Wanting Xu , Jianyong Yu , Wang Yao , Yuzhen Dong","doi":"10.1016/j.actaastro.2025.08.011","DOIUrl":"10.1016/j.actaastro.2025.08.011","url":null,"abstract":"<div><div>With the increasing number of deep space exploration missions, the harsh space environment imposes stringent demands on equipment reliability — a property that fundamentally depends on the long-term performance of structural materials. This review summarizes recent advances in thermal protection materials, ionizing radiation shielding materials, and atomic oxygen-resistant materials, while critically analyzing limitations of current technologies. To address these challenges, multilayer structural designs and hybrid smart materials, such as shape-memory polymers with self-healing capabilities, are proposed to mitigate combined space environmental threats. Specifically, the integration of artificial intelligence for predictive material optimization and additive manufacturing for the development of customized functional architectures is highlighted. Next-generation aerospace materials will evolve into lightweight, adaptive systems with embedded intelligence that enables real-time performance monitoring and autonomous repair. Consequently, the development of advanced aerospace composites is pivotal in driving the technological progress in deep space exploration and extending human capabilities in space.</div></div>","PeriodicalId":44971,"journal":{"name":"Acta Astronautica","volume":"238 ","pages":"Pages 184-196"},"PeriodicalIF":3.4,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145050003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Constellation design for the successive monitoring of a lunar landing process 星座设计用于连续监测一次登月过程

IF 3.4 2区物理与天体物理

Acta Astronautica Pub Date : 2025-08-30 DOI: 10.1016/j.actaastro.2025.08.004

Xiaohan Mei , Jie Sun , Shengxin Sun , Tianxi Liu , Cheng Wei

引用次数: 0

Material ageing experiments with passive samples onboard the International Space Station 国际空间站上被动式样品的材料老化实验

IF 3.4 2区物理与天体物理

Acta Astronautica Pub Date : 2025-08-30 DOI: 10.1016/j.actaastro.2025.07.069

Agnieszka Suliga, Marcelina Stasik, Sebastien Vincent-Bonnieu

引用次数: 0

Analysis of multiple gravity-assist solution space based on feasible domains 基于可行域的多重重力辅助解空间分析

IF 3.4 2区物理与天体物理

Acta Astronautica Pub Date : 2025-08-30 DOI: 10.1016/j.actaastro.2025.08.046

Zhiyuan Cao , Yi Qi , Dong Qiao

{"title":"Analysis of multiple gravity-assist solution space based on feasible domains","authors":"Zhiyuan Cao , Yi Qi , Dong Qiao","doi":"10.1016/j.actaastro.2025.08.046","DOIUrl":"10.1016/j.actaastro.2025.08.046","url":null,"abstract":"<div><div>Multiple gravity assist (MGA) is a widely used and highly effective technique in deep space exploration; however, its solution space remains insufficiently characterized. This paper characterizes the MGA solution space by the orbital energy, the total time of flight (TOF), and the MGA opportunity based on a semi-analytical method. Firstly, the gravity-assist state feasible domain and a semi-analytical method for assessing MGA opportunities are introduced. Then, the solution space, defined in terms of orbital energy, total TOF, and MGA opportunity, is mapped from these feasible domains. The interdependence among the three dimensions reveals intrinsic structural features within the solution space. Finally, representative rendezvous and interstellar mission scenarios are examined. Results indicate that MGA opportunities for a given sequence can be classified into windows and cycles based on their repeating periods. A higher initial energy yields more and wider windows, while a stricter ending energy constraint results in fewer and narrower windows. Numerical computation shows that the Earth–Jupiter–Saturn and Earth–Jupiter–Neptune sequences exhibit cycle periods of 20 years and 12 years, respectively. A comprehensive catalog of MGA sequences with varying energy requirements and opportunities is provided. A potential fast interstellar mission under a realistic configuration is identified with launch in 2038 and fuel consumption of 73.1 kg.</div></div>","PeriodicalId":44971,"journal":{"name":"Acta Astronautica","volume":"237 ","pages":"Pages 339-348"},"PeriodicalIF":3.4,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144989002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Large-scale hybrid mission scheduling for LuTan-1 satellites using sparse evolutionary algorithm 基于稀疏进化算法的陆坦一号卫星大规模混合任务调度

IF 3.4 2区物理与天体物理

Acta Astronautica Pub Date : 2025-08-30 DOI: 10.1016/j.actaastro.2025.08.044

Wan Liu , Dexin Zhang , Yuan Tian , Xiaowei Shao

{"title":"Large-scale hybrid mission scheduling for LuTan-1 satellites using sparse evolutionary algorithm","authors":"Wan Liu , Dexin Zhang , Yuan Tian , Xiaowei Shao","doi":"10.1016/j.actaastro.2025.08.044","DOIUrl":"10.1016/j.actaastro.2025.08.044","url":null,"abstract":"<div><div>LuTan-1 is China’s first L-band Synthetic Aperture Radar (SAR) satellite system designed for high-precision global land deformation monitoring. To address the challenges of SAR satellite observation missions characterized by extensive spatial coverage and intensive temporal conflicts, this paper presents a hybrid large-scale mission scheduling optimization method based on a revised sparse evolutionary algorithm (R-SparseEA). The method first generates meta-tasks through irregular region decomposition to minimize global overlap while comprehensively considering satellite visibility, onboard resources, and regional priorities. Subsequently, a multi-objective hybrid mission scheduling model with multiple revisit periods is established, providing an efficient and scalable framework for describing the large-scale long-term decision-making problem of SAR satellite systems. The proposed R-SparseEA algorithm incorporates innovative evolutionary techniques, including novel population initialization, masked genetic operations, and sparse population revision strategies to effectively solve this model. These techniques ensure both the feasibility and sparsity of the solution set throughout the evolutionary process. Comparative experiments demonstrate that R-SparseEA outperforms three state-of-the-art sparse evolutionary algorithms in Pareto solution set distribution, convergence performance, and computational efficiency. Simulation results indicate that complete coverage of China can be achieved within 33 days, while global land observation can be accomplished in 79 days through the collaboration of LuTan-1’s dual satellites.</div></div>","PeriodicalId":44971,"journal":{"name":"Acta Astronautica","volume":"237 ","pages":"Pages 395-408"},"PeriodicalIF":3.4,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Supporting sustainable mangrove management in Rio de Janeiro, Brazil: An application of the Environment-Vulnerability-Decision-Technology systems engineering framework 支持巴西里约热内卢可持续红树林管理：环境-脆弱性-决策-技术系统工程框架的应用

IF 3.4 2区物理与天体物理

Acta Astronautica Pub Date : 2025-08-29 DOI: 10.1016/j.actaastro.2025.08.050

Jack Reid, Danielle Wood

{"title":"Supporting sustainable mangrove management in Rio de Janeiro, Brazil: An application of the Environment-Vulnerability-Decision-Technology systems engineering framework","authors":"Jack Reid, Danielle Wood","doi":"10.1016/j.actaastro.2025.08.050","DOIUrl":"10.1016/j.actaastro.2025.08.050","url":null,"abstract":"<div><div>Mangroves are critical ecosystems offering ecological, economic, and social benefits, yet they face increasing threats from urbanization, climate change, and competing land-use priorities. Effective management requires decision-making frameworks that integrate environmental data, stakeholder perspectives, and sustainable development goals. This study demonstrates the Environment-Vulnerability-Decision-Technology (EVDT) Framework through a case study in Guaratiba, Rio de Janeiro, Brazil. The EVDT Framework emphasizes participatory, scalable, and systems-based approaches, integrating technologies such as Earth Observation (EO) and Geographic Information Systems (GIS) with stakeholder-driven processes. By focusing on mangrove conservation and sustainable development, the study addresses key research objectives: analyzing system architecture, developing a decision support system (DSS), and harnessing its utility through stakeholder engagement. Findings highlight the framework’s capacity to balance environmental, social, and economic objectives while fostering inclusive design. This case study contributes to refining the EVDT Framework and offers actionable insights for policymakers and researchers tackling complex socio-environmental challenges.</div></div>","PeriodicalId":44971,"journal":{"name":"Acta Astronautica","volume":"238 ","pages":"Pages 112-134"},"PeriodicalIF":3.4,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145049942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Localization of hypervelocity impact-induced damage in thermal protection systems of aerospace vehicle using a weighted-KNN algorithm 基于加权knn算法的航天飞行器热防护系统超高速碰撞损伤定位

IF 3.4 2区物理与天体物理

Acta Astronautica Pub Date : 2025-08-29 DOI: 10.1016/j.actaastro.2025.08.054

Feng Du , Peng Ji , Wuxiong Cao , Jiaxin Gao , Yibo Lu , Jianxia Gao , Xianpeng Zhou , Runqiang Chi , Diqi Hu , Baojun Pang

{"title":"Localization of hypervelocity impact-induced damage in thermal protection systems of aerospace vehicle using a weighted-KNN algorithm","authors":"Feng Du , Peng Ji , Wuxiong Cao , Jiaxin Gao , Yibo Lu , Jianxia Gao , Xianpeng Zhou , Runqiang Chi , Diqi Hu , Baojun Pang","doi":"10.1016/j.actaastro.2025.08.054","DOIUrl":"10.1016/j.actaastro.2025.08.054","url":null,"abstract":"<div><div>A large amount of micrometeoroids and orbital debris (MMOD) pose a high potential risk of impacts to the thermal protection system (TPS) of aerospace vehicles, threatening the structural integrity and safety. Therefore, real-time in-situ sensing of MMOD impacts is necessary. Due to the significant anisotropy and strong intermittency of the TPS, the traditional time difference of arrival (TDOA)-based method has limited accuracy. Targeting the localization of hypervelocity impact (HVI)-induced damage on the TPS, a weighted K-nearest neighbor (WKNN)-based method is proposed. Firstly, a TDOA vector database is constructed by repeating the low-velocity impact (LVI) experiments on the TPS specimen in the delineated zone to train the proposed method. Then, both LVI and HVI experiments are conducted to validate the proposed algorithm, and the effect of the K value and weighting method on the localization accuracy is analyzed. The results show that both LVI and HVI-induced damage on the TPS can be accurately localized using the proposed WKNN-based method. Adopting an appropriate K value can reduce the influence of database imbalance, and weighting the inter-vector distances significantly can improve the localization accuracy and robustness. The proposed method can provide valuable guidance for the on-orbit repair of TPS in practical engineering applications.</div></div>","PeriodicalId":44971,"journal":{"name":"Acta Astronautica","volume":"237 ","pages":"Pages 326-338"},"PeriodicalIF":3.4,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144989001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A mission concept for removing multiple debris using formation-flying slingshot spacecraft 一种利用编队飞行弹弓航天器清除多重碎片的任务概念

IF 3.4 2区物理与天体物理

Acta Astronautica Pub Date : 2025-08-28 DOI: 10.1016/j.actaastro.2025.08.035

Achira Boonrath , Federico Rossi , Issa A. Nesnas , Eleonora M. Botta

引用次数: 0

Rendering knowledge graphs from aerospace dentistry processes for clinical decision support systems 为临床决策支持系统绘制航空航天牙科过程的知识图谱

IF 3.4 2区物理与天体物理

Acta Astronautica Pub Date : 2025-08-28 DOI: 10.1016/j.actaastro.2025.08.023

Muhammad “Tuan” Amith , Jessica Vu , Serena Hou , Vinu Sista , Yang Gong , Ronak Shah , Ana C. Neumann

{"title":"Rendering knowledge graphs from aerospace dentistry processes for clinical decision support systems","authors":"Muhammad “Tuan” Amith , Jessica Vu , Serena Hou , Vinu Sista , Yang Gong , Ronak Shah , Ana C. Neumann","doi":"10.1016/j.actaastro.2025.08.023","DOIUrl":"10.1016/j.actaastro.2025.08.023","url":null,"abstract":"<div><div>NASA and commercial space flight companies expect to make long-term missions into deep space with the Artemis project and Mars mission. Health care in deep space is a priority as the missions require limited crew and equipment to accommodate astronauts’ needs. Analyzing the probable clinical procedures and workflows for this setting is needed to ensure quality care and safety. This paper introduces Business Process Modeling and Notation (BPMN) and OWL2-based modeling to represent aerospace dental workflows for low-earth orbit and potential deep space missions. We developed BPMN process models and created ontology-based knowledge graph representations for individual dental procedures using a semi-automated processing pipeline. The output of this project yielded four OWL2-based knowledge graphs that describe semantic descriptions of a dental abscess, extractions, dislodged restorations, and dental trauma. With computable knowledge graphs of these processes, we can integrate these models for software applications for remote clinical tools, like decision support systems. Future work will involve extending these prototype knowledge graphs and developing knowledge base applications that leverage these process artifacts.</div></div>","PeriodicalId":44971,"journal":{"name":"Acta Astronautica","volume":"238 ","pages":"Pages 341-350"},"PeriodicalIF":3.4,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145096633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0