A320系列飞机GAPCU及相关部件故障浅析
作者: 伏建飞  日期:2025-11-17 来源 :科技风 文献类型 :期刊 关键词:继电器 地面外电源 APU电源 GAPCU 
描述:A320系列飞机GAPCU及相关部件故障浅析
A320系列老龄飞机的常见损伤与解决方案
作者: 杨增文    日期:2019-11-18 来源 :航空维修与工程 文献类型 :期刊 关键词:修理方案 老龄飞机 常见损伤 
描述:基于A320系列老龄飞机数量将在接下来10年间增加数倍、老龄飞机在结构疲劳与腐蚀方面呈现多发态势的背景,6月12-13日空客在北京举办了亚太地区A320系列老龄飞机论坛,来自国内外23家航空公司的约50名工程师与来自空客总部的结构工程负责人齐聚北京,讨论了如何更好地管控机队的老
A320系列机型绿点速度特性分析
作者: 孙宏  魏坤鹏  赵庆伟  向导    日期:2020-06-05 来源 :飞行力学 文献类型 :期刊 关键词:绿点速度 PEP软件 飞行性能 最大升阻比 
描述:A320系列机型绿点速度特性分析
A319ceo飞机燃油油面传感系统故障浅析
作者: 王国鑫  日期:2025-11-14 来源 :航空维修与工程 文献类型 :期刊 关键词:控制 油面 燃油 故障分析 传感器 
描述:A319ceo飞机燃油油面传感系统故障浅析
A319/A320飞机主轮毂联接螺栓疲劳断裂力学分析
作者: 杨先学  姚一楠    日期:2020-06-05 来源 :科技创新导报 文献类型 :期刊 关键词:疲劳断裂 轮毂 裂纹 螺栓 
描述:A319/A320飞机主轮毂联接螺栓疲劳断裂力学分析
A319-115飞机CFM56-5B型发动机的构型转换
作者: 刘佳鸣    日期:2018-01-10 来源 :航空维修与工程 文献类型 :期刊 关键词:A319 115 构型转换 CFM56 5B发动机 
描述:航空发动机构型转换是航空公司工程管理的重要课题,掌握发动机的构型转换原理,不但可以优化公司机队的发动机配置,还可以扩大AOG情况下备发的选择范围。本文以A319-115飞机CFM56-5B型发动机为例,介绍发动机构型转换的相关要求。
A-SMGCS航空器滑行时间延迟的滑行路由实时更新算法
作者: 唐志星  朱新平  夏正洪    日期:2017-12-05 来源 :科学技术与工程 文献类型 :期刊 关键词:A 路由实时更新 空中交通管制 SMGCS 机场 滑行时间延迟 
描述:在先进场面活动引导和控制系统(advanced surface movement guidance and control systems,A-SMGCS)中,针对航空器滑行时间延迟而导致场面运行效率和安全水平的降低,提出一种集成场面态势监测的滑行路由实时更新算法。该算法采用局部路由更新方式,首先采用时间窗约束Petri网建立航班滑行时间延迟时的场面局部模型;其次,定义模型中库所对应时间窗的合并运算规则;并据此展开局部模型约简,进而得到约简模型中航班滑行冲突判定条件;再次,以最小化航班在冲突区域的滑行成本为目标,实现了相关航班局部滑行路由优化同时保证了对原路由扰动最小;最后,通过算例验证了所提滑行路由实时更新方法的有效性。
A-CDM系统在民航业的应用前景研究
作者: 张浩  杨露露    日期:2018-01-03 来源 :科技和产业 文献类型 :期刊 关键词:A 空管 机场 CDM 航空公司 
描述:为了更加有效地缓解航班流量激增导致的航班频繁延误现象,我国部分机场在原有CDM系统的基础上引进了A-CDM系统。首先介绍了机场协同决策系统(A-CDM)的概念以及产生背景;然后在明确区分了CDM与A-CDM这两种运行概念的基础上,详细说明了国内A-CDM自定义的关键事件节点;最后通过A-CDM在"上海虹桥国际机场"和"昆明长水国际机场"的实际应用情况及取得成效的总结,得出了A-CDM的应用有效地缓解了航班延误并使各参与单位事半功倍的结论。
A three‐dimensional wideband mmWave multiple‐input multiple‐output channel model for aerial reconfigurable intelligent surface‐assisted communication systems
作者: Xiaona  Wu    Ji  Bian    Zili  Wang    Xiangwei  Zheng    Jie  Tian    Jingping  Qiao  日期:2023-12-14 来源 :International Journal of Communication Systems 文献类型 :期刊 关键词:reconfigurable statistical GBSM channel MIMO model UAV intelligent properties Surface 
描述:This paper presents a wideband millimeter wave (mmWave) channel model for aerial reconfigurable intelligent surface (ARIS) communications, in which the reconfigurable intelligent surface (RIS) is attached to an unmanned aerial vehicle (UAV) to enable intelligent signal reflections in the air. The model is established according to standard 3GPP channel models and considers important propagation factors, for example, large‐scale fading, small‐scale fading, and radiation pattern of reflection units (RUs). In addition, the model assumes three‐dimensional (3D) rotations of RIS and can capture its effects on channel characteristics. Based on the model, we propose a design method for RIS reflection phases. Statistics including channel amplitude, spatial, temporal, and frequency correlation functions (CFs), and space‐Doppler power spectral density (SD‐PSD) are obtained. The impacts of RU number, UAV height and speed, and RIS rotation on channel statistics are investigated. Results suggest that the designed reflection phases can effectively mitigate multipath fading and Doppler effect. Compared to the yaw angle of the UAV platform, channel characteristics are more sensitive to the roll and pitch angles.
A Simplified Chemical Reactor Network Approach for Aeroengine Combustion Chamber Modeling and Preliminary Design
作者: Sergios  Villette    Dimitris  Adam    Alexios  Alexiou    Nikolaos  Aretakis    Konstantinos  Mathioudakis  日期:2023-12-26 来源 :Aerospace 文献类型 :期刊 关键词:modeling turbines reactor CANTERA pollutant aeroengines combustion chamber chemical Network design gas preliminary emissions 
描述:In a time when low emission solutions and technologies are of utmost importance regarding the sustainability of the aviation sector, this publication introduces a reduced-order physics-based model for combustion chambers of aeroengines, which is capable of reliably producing accurate pollutant emission and combustion efficiency estimations. The burner is subdivided into three volumes, with each represented by a single perfectly stirred reactor, thereby resulting in a simplified three-element serial chemical reactor network configuration, reducing complexity, and promoting the generality and ease of use of the model, without requiring the proprietary engine information needed by other such models. A tuning method is proposed to circumvent the limitations of its simplified configuration and the lack of detailed geometric data for combustors in literature. In contrast to most similar frameworks, this also provides the model with the ability to simultaneously predict the combustion efficiency and all pollutant emissions of interest ( N O x , C O and unburnt hydrocarbons) more effectively by means of implementing a detailed chemical kinetics model. Validation against three correlation methods and actual aeroengine configurations demonstrates accurate performance and emission trend predictions. Integrated within two distinct combustion chamber low-emission preliminary design processes, the proposed model evaluates each new design, thereby displaying the ability to be employed in terms of optimizing a combustor’s overall performance given its sensitivity to geometric changes. Overall, the proposed model proves its worth as a reliable and valuable tool for use towards a greener future in aviation.
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