作者： 吴晗旭，王辉，刘向阳，周东谟 （中北大学机电工程学院；北京理工大学宇航学院）

出处： 第六届空天动力联合会议暨中国航天第三专业信息网第四十二届技术交流会暨2021航空发动机技术发展高层论坛 中国四川成都 2022

会议录： 第六届空天动力联合会议暨中国航天第三专业信息网第四十二届技术交流会暨2021航空发动机技术发展高层论坛

关键词： 推进剂；力学性能；非均匀性,结构完整性

摘要： 大型固体发动机固化降温等所引发的贮存载荷较为严重,复杂的装药结构导致装药内部的应力/应变场也是不均匀的。非均匀贮存载荷的长期作用会引起药柱的力学性能的分布不均匀。基于此,本文提出基于推进剂力学性能非均匀性的装药结构完整性分析方法。仿真结果显示:考虑推进剂装药力学性能非均匀性与否,对装药结构完整性分析 ...

作者： 薛鹏聪，刘铖，水小平 （北京理工大学宇航学院；中物院高性能数值模拟软件中心；北京应用物理与计算数学研究所）

出处： 深空探测学报 2022 第2期

关键词： 绝对节点坐标方法；薄膜结构；不同模量弹性理论

摘要： 执行深空探测任务的薄膜太阳帆在入轨展开过程中，其薄膜结构在宏观力学响应上表现出显著的拉压不对称特性。系统的动力学行为呈现出强烈的非线性特征，使其动力学建模与仿真计算面对巨大挑战。基于绝对节点坐标方法（Absolute Nodal Coordinate Formulation，ANCF），整合张力场和 ...

作者： Shijun Sun;Jiaqi Hao;Jutao Yang;Ling Zhou;Lucheng Ji （School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China Institute for Aero Engine, Tsinghua University, Beijing 100084, China）

出处： Journal of Turbomachinery 2022 Vol.144 No.4 P041009

关键词： axial supersonic throughflow fan;tandem cascade;axial overlap;percent pitch;oblique shock;wake;computational fluid dynamics (CFD);fan;aerodynamic design;fluid dynamics phenomena in compressor and turbine components of gas turbine engines;turbomachinery blading design

摘要： In the current study, the tandem blade technology is applied to an supersonic throughflow fan (STFF) tandem cascade for the first time and a 2D STFF t ...

作者： Tulin Xiong;Lu Wang;Xianzhi Gao;Guangyan Liu （School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China）

出处： Applied Sciences 2022 Vol.12 No.1195 P1195

关键词： residual stress distribution;artificial neural network;finite element model updating;inverse identification

摘要： Residual stress within a structural component can significantly affect the mechanical performance and stability of a structure. Therefore, it is cruci ...

作者： Cheng, Lidong¹⁴;Deng, Xi²³;Xie, Bin¹;Jiang, Yi⁴;Xiao, Feng⁵; （¹School of Naval Architecture, Department of Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai, 200240, China;²Department of Aeronautics, Imperial College London, SW7 2AZ, United Kingdom;³Department of Engineering, University of Cambridge, CB2 1PZ, United Kingdom;⁴School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 10–0081, China;⁵School of Engineering, Department of Mechanical Engineering, Tokyo Institute of Technology, Tokyo, 152–8550, Japan）

出处： Applied Mathematical Modelling 2022 Vol.108 P142-166

摘要： Although the accuracy and the robustness of discretized schemes solving hyperbolic systems have been greatly improved over the last two decades, devis ...

作者： Tang, Jun¹;Bai, Yutian¹;Yan, Lei²;Wang, Wenjie³; （¹School of Civil Engineering, Tianjin University, Tianjin, 300072, China;²China Academy of Launch Vehicle Technology, Beijing, 100076, China;³School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, China）

出处： Applied Acoustics 2022 Vol.190

摘要： Aiming at the special requirements of low-frequency echo control of underwater targets in high pressure environment, a low-frequency miniaturized acti ...

作者： Ma, Wenxuan¹;Yu, Yong¹;Hu, Jun¹; （¹School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, China）

出处： Baozha Yu Chongji/Explosion and Shock Waves 2022 Vol.42 No.3

摘要： When a small-caliber projectile is moving underwater at a high speed, the water around the projectile will cavitate. The cavitation effect can greatly ...

作者： Zeng, Peigao¹;Jiang, Yi¹;Yang, Lina¹; （¹School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, China）

出处： Scientia Sinica: Physica, Mechanica et Astronomica 2022 Vol.52 No.6

摘要： Contrails frequently appear in the activities of air vehicles. The Euler-Euler approach based on the quadrature method of moments with the k-ω SST tur ...

作者： Kong, Weizhen¹;Chen, Zhankui¹;Tian, Qiang¹; （¹School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, China）

出处： Scientia Sinica: Physica, Mechanica et Astronomica 2022 Vol.52 No.4

摘要： Based on the incompressible smoothed particle hydrodynamics (ISPH) and total Lagrange smoothed particle hydrodynamics (TLSPH) method, a numerical comp ...

作者： Zhu, Shengying¹²;Xiu, Yi¹²;Liu, Dongchen³;Zhang, Ning⁴;Xu, Rui¹²; （¹School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, China;²Key Laboratory of Autonomous Navigation and Control for Deep Space Exploration, Ministry of Industry and Information Technology, Beijing, 100081, China;³Chang Guang Satellite Technology CO., LTD, Changchun, 130000, China;⁴Shanghai Institute of Satellite Engineering, Shanghai, 201109, China）

出处： Scientia Sinica: Physica, Mechanica et Astronomica 2022 Vol.52 No.1

摘要： Given the increasing importance of binary asteroids in the field of deep-space exploration, improving the navigation accuracy of the spacecraft has be ...