Advances in Astronautics Science and Technology最新文献_第6页

Research on Impact Location Method of Complex Spacecraft Pressure Vessel Structure 复杂航天器压力容器结构碰撞定位方法研究

Advances in Astronautics Science and Technology Pub Date : 2022-07-13 DOI: 10.1007/s42423-022-00125-5

Wang Lei, Zhou Hao, Wen Nan

引用次数: 0

For the 71st IAC A Novel Deployable Redundant Unit for Spacecraft Causality Analysis: Modelled With Existing Technology 一种用于航天器因果分析的新型可部署冗余单元：用现有技术建模

Advances in Astronautics Science and Technology Pub Date : 2022-07-13 DOI: 10.1007/s42423-022-00127-3

Chiranthan Krishnappa, Suraj Ravichandra, Ananda Mukesh Tamilselvan , Pruthvi Jagadeesh Gavirangapura Krishnamurthy, Sushmith Thuluva, Rohith Soma

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引用次数: 0

On-Orbit Infrared Radiometric Calibration and Land Surface Temperature Inversion of FY-3C MERSI FY-3C MERSI在轨红外辐射定标及地表温度反演

Advances in Astronautics Science and Technology Pub Date : 2022-07-12 DOI: 10.1007/s42423-022-00126-4

Zhao Qichang, Wu Yiquan, Dang Jiancheng, Yang Yong, Niu Xinhua, Hu Xiuqing

引用次数: 0

Reliability Assessment Technology for Spacial Complex Mechanical System 空间复杂机械系统可靠性评估技术

Advances in Astronautics Science and Technology Pub Date : 2022-06-30 DOI: 10.1007/s42423-022-00119-3

Limin Shao, Shuli Yang, Ying Wang

{"title":"Reliability Assessment Technology for Spacial Complex Mechanical System","authors":"Limin Shao, Shuli Yang, Ying Wang","doi":"10.1007/s42423-022-00119-3","DOIUrl":"10.1007/s42423-022-00119-3","url":null,"abstract":"<div><p>Ground tests of spacial mechanical products have the characteristics of few test subsamples and expensive test cost, which often appear the cases of zero-failure samples. The classic reliability evaluation methods cannot adapt to the reliability assessment needs of small subsamples and zero-failure samples for high-reliability, long-life spacial complex mechanical products. The characteristics of failure rate functions of typical mechanical products such as mechanical structure, motors, bearings, gears, valves, and so on have been analyzed. Then the reliability evaluation methods of spacial complex mechanical system have been deduced, which has been combined the prior data of Bayesian method. Bayesian posterior distribution function of exponential distribution has been established by the method, which makes use of uniform distribution as a prior distribution, and combines with the convex characteristics of exponential distribution’s failure rate. Bayesian posterior distribution function of exponential distribution has been utilized in products, such as motors, valves, etc., which have characteristics of presenting exponential distribution. The evaluation range of accumulative failure-rate has been reduced by making use of accumulative failure-rate and predicted failure rate of exponential distribution And the weighted least-squares method has been used in parametric fitting based on accumulative failure-rate Then high-precision estimated failure rate of exponential distribution has been obtained. In this paper, the calculation example of compressor filled with spacial propellant has verified the feasibility of the calculation method. The problems of the reliability tests’ few subsamples and evaluating efficiency for expensive, complex spacial mechanical products have been solved effectively by the above proposed method.</p></div>","PeriodicalId":100039,"journal":{"name":"Advances in Astronautics Science and Technology","volume":"5 4","pages":"335 - 339"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50526428","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

Design and Analysis of the Androgynous Connection and Separation Device 雌雄同体连接分离装置的设计与分析

Advances in Astronautics Science and Technology Pub Date : 2022-06-29 DOI: 10.1007/s42423-022-00113-9

Wen-long Wang, Xiao-tian Zhang

引用次数: 0

Dynamic Analysis of Deployable Strut-Mechanism with Clearance Root-Joints for Spacial Flexible Solar Array 空间柔性太阳能帆板间隙根节点可展杆机构动力学分析

Advances in Astronautics Science and Technology Pub Date : 2022-06-28 DOI: 10.1007/s42423-022-00124-6

Shuli Yang, Limin Shao, Yuhong Wang

{"title":"Dynamic Analysis of Deployable Strut-Mechanism with Clearance Root-Joints for Spacial Flexible Solar Array","authors":"Shuli Yang, Limin Shao, Yuhong Wang","doi":"10.1007/s42423-022-00124-6","DOIUrl":"10.1007/s42423-022-00124-6","url":null,"abstract":"<div><p>With Kane dynamics theory, the multi-body dynamic models of deployable struts are established with considering the clearance root-joint and the deployable style and deployable process of the struts are studied. The dynamic performance of struts’ deployment is analyzed, such as geometric position, velocity, and acceleration, seeking the inherent regularity of each joint’s motion characteristics. The results show that root-joint’s clearance has almost no influence on the rotation angle and angular velocity of base strut, but to some extent effect on the angular acceleration of base strut. Amplitude of angular acceleration appears significant fluctuations in 0–2 s and stabilizes gradually, indicating the pin in the bush is in the state of constant contact and separation. The dynamic model of deployable struts considering root-joint’s clearance represents more realistically the dynamic characteristics of this system. The different hinges suffer different contact forces, and its impact how effects on the mechanism movement is different. Therefore, Analysis of the dynamic performance and design of deployable struts need to consider the impact of hinge clearance, which gain the motion characteristics of important parts during deploying process, providing guidance for future design of mechanisms and driving forces.</p></div>","PeriodicalId":100039,"journal":{"name":"Advances in Astronautics Science and Technology","volume":"5 3","pages":"241 - 249"},"PeriodicalIF":0.0,"publicationDate":"2022-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50051704","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

Integration of the Large Envelope Advanced Parachute System in Stratos IV Stratos IV大包络先进降落伞系统的集成

Advances in Astronautics Science and Technology Pub Date : 2022-06-28 DOI: 10.1007/s42423-022-00098-5

Lars Pepermans, Sebastian Oliver Scholts, Esmée Menting, Thomas Britting, Antonio López Rivera, Sowndariya Dhiyaneeswaran, Wesley L. J. R. Toussaint, Thomas C. Bosboom, Bram Koops

引用次数: 1

Design of Electromagnetic Docking Device for Micro–Nanosatellite 微纳卫星电磁对接装置设计

Advances in Astronautics Science and Technology Pub Date : 2022-06-27 DOI: 10.1007/s42423-022-00121-9

Guangzheng Ruan, Lijian Wu, Runqi Han, Bo Wang

引用次数: 0

Landing Dynamic Analysis for Landing Leg of Lunar Lander Using Nonlinear Finite Element Method 月球着陆器着陆腿的非线性有限元着陆动力学分析

Advances in Astronautics Science and Technology Pub Date : 2022-06-27 DOI: 10.1007/s42423-022-00120-w

Dongping Liang, Gang Wang, Peng Zhang

引用次数: 0

Research on Crack Stop Characteristics of Integrally Stiffened Structure for Spacecraft Pressured Modules 航天器受压舱整体加筋结构止裂特性研究

Advances in Astronautics Science and Technology Pub Date : 2022-06-26 DOI: 10.1007/s42423-022-00116-6

Wenjing Shi, Liming Shi, Lin Zhang

引用次数: 0