作者： Bo-qi Jia;Luo Xie;Xiang-dong Deng;Bo-shu He;Li-jun Yang;Qing-fei Fu （¹Institute of Combustion and Thermal Systems, School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, PR China;²School of Marine Science and Technology, Northwestern Polytechnical University, Xi\'an, Shaanxi 710072, PR China;³School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, PR China;⁴School of Astronautics, Beihang University, Beijing 100083, PR China Aircraft and Propulsion Laboratory, Ningbo Institute of Technology, Beihang University, Ningbo 315800, PR China）

出处： Journal of Fluid Mechanics 2023 Vol.959 PA18

摘要： The oscillatory Kelvin–Helmholtz (K–H) instability of a planar liquid sheet was experimentally investigated in the presence of an axial oscillating ga ...

作者： Fei Guo;|Xiaoyu Zhao;|Wenqiong Tu;|Cheng Liu;|Beibei Li;|Jinrui Ye （¹ School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China. ² School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013, China. ³ Department of Civil Engineering, Zhejiang College of Construction, Hangzhou 311231, China. ⁴ School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China.）

出处： Materials (Basel, Switzerland) 2023 Vol.16 No.5 P1953

关键词： inverse;optimization design;particle swarm optimization;plain woven composites.

摘要： Designing thermal conductivity efficiently is one of the most important study fields for taking the advantages of woven composites. This paper present ...

作者： Xiao Zhang¹;Xue Chen²;Bo Huo³;Chenglin Liu³;Xiaorong Zhu⁴;Yuanyuan Zu¹;Xiliang Wang¹;Xiao Chen⁵;Qing Sun⁶; （¹ Systems Engineering Institute, Academy of Military Science, Beijing, 100091, People\'s Republic of China. ² Department of Mechanics, School of Aerospace Engineering, Beijing Institute of Technology, No. 5 South Zhongguancun Street, Beijing, 100081, People\'s Republic of China. ³ Institute of Artificial Intelligence in Sports, Capital University of Physical Education and Sports, Beijing, People\'s Republic of China. ⁴ Beijing Institute of Precision Mechatronics and Controls, Beijing, People\'s Republic of China. ⁵ Systems Engineering Institute, Academy of Military Science, Beijing, 100091, People\'s Republic of China. chenxiaoami@126.com. ⁶ Department of Mechanics, School of Aerospace Engineering, Beijing Institute of Technology, No. 5 South Zhongguancun Street, Beijing, 100081, People\'s Republic of China. 7520210003@bit.edu.cn.）

出处： Scientific reports 2023 Vol.13 No.1 P4251

摘要： Wearable robots have been growing exponentially during the past years and it is crucial to quantify the performance effectiveness and to convert them ...

作者： Jinjian Li;Li Su;Chuandong Guo;Xiangyu Wang;Quan Hu （¹School of Aerospace Engineering, Beijing Institute of Technology, Beijing, China ²Information Engineering College, Capital Normal University, Beijing, China）

出处： IEEE Sensors Journal 2023 P1

关键词： Cameras;Corner detection;Detectors;Sensors;Task analysis;Surface treatment;Streaming media

摘要： Event cameras are novel neuromorphic vision sensors with ultrahigh temporal resolution and low latency, both in the order of microseconds. Instead of ...

作者： 黄文丹，马恒，刘战伟 （北京理工大学 宇航学院）

出处： 光子学报 2023 第52卷 第2期 P204-216

关键词： 光学测量；宽测温范围；辐射测温；相机成像；动态范围；比色测温技术

摘要： 针对单相机单波长测温和比色测温过程中测温范围较窄的问题，以单波长测温过程为基础，推导了相机传感器动态范围和工作波长对单相机测温范围影响的理论公式，并对波段选取过程中的影响因素进行了分析。理论分析结果表明：相机动态范围和波长的选取限制了一次曝光时测温范围的最大跨度值，在相机传感器唯一确定时，相机动态范 ...

作者： 白若阳，李富荣，荣吉利，陈子超，韦振乾，赵自通 （北京理工大学宇航学院）

出处： 北京理工大学学报 2023 第43卷 第3期 P230-239

关键词： 水下爆炸；多层夹芯板；金字塔结构；流固耦合仿真

摘要： 研究金属夹芯板在水下爆炸冲击下的动态响应规律和抗冲击性能，对提升舰船防护能力有重要意义.利用等效水下爆炸冲击加载实验装置对双层金字塔点阵夹芯板进行实验，得到了其动态响应规律；结合ABAQUS流固耦合仿真对实验进行模拟，结果与实验误差较小，验证了仿真的有效性.针对不同参数的多层夹芯板，利用仿真分析了其 ...

作者： Xiaolei Wang;Zixuan Shang;Chen Zhang;Jiaqian Kang;Tao Liu;Xueyun Wang;Siliang Chen;Haoliang Liu;Wei Tang;Yu-Jia Zeng;Jianfeng Guo;Zhihai Cheng;Lei Liu;Dong Pan;Shucheng Tong;Bo Wu;Yiyang Xie;Guangcheng Wang;Jinxiang Deng;Tianrui Zhai;Hui-Xiong Deng;Jiawang Hong;Jianhua Zhao （¹Department of Physics and Optoelectronic Engineering, Faculty of Science, Beijing University of Technology;²State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences;³School of Aerospace Engineering, Beijing Institute of Technology;⁴National Engineering Research Center of Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China;⁵Guangdong Provincial Key Laboratory of Semiconductor, Optoelectronic Materials and Intelligent Photonic Systems, School of Science, Harbin Institute of Technology (Shenzhen);⁶Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University;⁷Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of China;⁸Key Laboratory of Optoelectronics Technology Ministry of Education, Beijing University of Technology）

出处： Nature Communications 2023 Vol.14 No.1 P1-8

关键词： TOTAL-ENERGY CALCULATIONS;SPINTRONICS;MIGRATION;CRYSTAL

摘要： Manipulating electrical and magnetic anisotropies will stimulate multi-terminal device applications. Here, the authors discover axis dependence of cur ...

作者： 贺媛媛，韩慧，王琦琛，赵辛敉，张航 （北京理工大学宇航学院）

出处： 战术导弹技术 2023 第1期 P39-50

关键词： 微小型飞行器；仿生扑翼；飞行机理；传动机构；尾翼控制；起降

摘要： 基于飞行生物扑翼的运动和气动特性而设计的微小型仿生扑翼飞行器在低雷诺数飞行条件约束下具有传统固定翼和旋翼无法比拟的气动和机动性优势，自20世纪末开始受到持续关注。对仿鸟扑翼飞行器的研究进展和相关成果进行了概述，包括基于周期拍动体涡流理论的鸟类扑翼飞行机理及最优推进效率的拍动模式，与昆虫扑翼追求高升力 ...

作者： 董欣心，岳振江，王志，刘莉 （北京理工大学宇航学院）

出处： 北京航空航天大学学报 2023 第49卷 第3期 P625-635

关键词： 整流罩锥壳；夹层结构；热稳定性分析；区间不确定性优化；轻量化设计

摘要： 为分析运载火箭整流罩锥壳夹层结构不确定性对结构热稳定性的影响并指导结构的轻量化设计，建立整流罩前锥段夹层圆锥壳模型，并建立温度场模型，据此对圆锥壳开展热稳定性分析，推导力热联合载荷作用下整流罩前锥段夹层结构失稳临界轴压。在此基础上，针对主要不确定性因素，开展灵敏度分析并建立区间不确定性优化模型，采用 ...

作者： 张京力，姜毅，张曼曼，杨莹 （北京理工大学宇航学院）

出处： 弹箭与制导学报 2023 第1期

关键词： 燃气射流；导流器；喷水降温；汽化吸热；多相流

摘要： 导弹发射产生的高温燃气会对发射装置造成严重的烧蚀作用。为了研究发射装置的热防护问题，提出一种在导流器内布设竖直向上的喷水管道方案，利用液态水的汽化吸热原理和冲击作用实现对发射装置的热防护。基于Mixture多相流模型，耦合液态水的汽化方程与组分运输模型，分析该方案的降温机理及效果；对不同喷水速度工况 ...