考虑弹体柔性振荡的全捷联导引头制导信息提取

随着拦截导弹弹体长细比的增加和直接侧向力的作用，拦截导弹上全捷联导引头量测信息严重受到弹体弹性振荡和控制力矩激励的影响，从而造成导弹制导精度的下降。针对现有惯导安装在弹体质心附近的振荡波腹处无法敏感导引头振荡的不足，提出了一种在导引头安装微机电陀螺器件测量振荡角速率，构造差分观测量的新状态模型，通过交互式多模型的容积卡尔曼滤波算法实现对视线角速度的解耦和精确提取。通过构建导弹六自由度制导与控制仿真模型，采用蒙特卡洛打靶仿真验证了算法的有效性。仿真结果表明模型重构后的滤波算法可以将弹体振荡的均方根误差压缩到0.5°以内并有效跟踪弹目视线角速率。     

Collaborative manufacturing technologies of structure shape and surface integrity for complex thin-walled components of aero-engine: Status,challenge and tendency

Presently, the service performance of new-generation high-tech equipment is directly affected by the manufacturing quality of complex thin-walled components. A high-efficiency and quality manufacturing of these complex thin-walled components creates a bottleneck that needs to be solved urgently in machinery manufacturing. To address this problem, the collaborative manufacturing of structure shape and surface integrity has emerged as a new process that can shorten processing cycles, improve machining qualities, and reduce costs. This paper summarises the research status on the material removal mechanism, precision control of structure shape, machined surface integrity control and intelligent process control technology of complex thin-walled components. Numerous solutions and technical approaches are then put forward to solve the critical problems in the high-performance manufacturing of complex thin-wall components. The development status, challenge and tendency of collaborative manufacturing technologies in the high-efficiency and quality manufacturing of complex thin-wall components is also discussed.     

先进复合材料用立体织物研究进展北大核心CSCD

航空航天技术的发展对先进复合材料提出了更高要求,立体织物制备技术得到了全面发展。本文综述了复合材料用立体织物结构、成型工艺、制造设备和应用等国内外研究情况,并结合立体织物特点和近年发展现状,指出未来发展方向。     

Autonomous mission reconstruction during the ascending flight of launch vehicles under typical propulsion system failures

In recent years, Chinese Long March(LM) launchers have experienced several launch failures, most of which occurred in their propulsion systems, and this paper studies Autonomous Mission Reconstruction(AMRC) technology to alleviate losses due to these failures. The status of the techniques related to AMRC, including trajectory and mission planning, guidance methods,and fault tolerant technologies, are reviewed, and their features are compared, which reflect the challenges faced by AMRC technology...     

检查性反潜时声纳浮标阵阵型优化

存总结检查性反潜要求与特点的基础上，分析了检查性反潜时声纳浮标阵的主要阵型，建立了声纳浮标阵作战效能的仿真模型，并在想定条件下对典型声纳浮标阵的搜索效能进行了仿真研究。比较、分析仿真结果，提出了检查性反潜时声纳浮标阵阵型的优化结果.