飞机多执行器液压系统的分析和改进设计

本文从国内外发展和应用的现状出发，针对飞机多招待器液压系统存在干扰的问题，介绍了一种优化设计方案，使飞机操纵系统有优先使用权。该方案对于所有飞机液压系统都适用，具有广泛的应用前景。     

浅谈层次—主成分分析法在飞机防护洞室群施工方案选择中的应用

飞机防护洞室群的工程施工十分复杂,其施工过程会涉及到很多因素。如何全面考虑这些因素以选择合适的施工方案是一个至关重要的课题。本文引入层次-主成分分析方法,介绍了其基本原理及实施步骤,在分析工程实际影响因素的基础上,结合工程实例,用层次-主成分分析方法对这些因素进行主观和客观相结合的综合评价,且优选出最佳施工方案,实践证明该方法是科学可行的。     

The influence of backrest angles on the passenger neck comfort during sleep in the economy class air seat without head support

The purposes of this study were to characterize the influence of seat back angle variations on the neck comfort of sleeping passengers without a pillow and provide suggestions for the design of economy-class seats. In this study, 17 subjects were subjected to a sleep experiment to test the effect of the backrest angle on head and neck rotation and the fatigue level of the neck muscles. The results showed that a reclined backrest (positioned at 110°) caused greater rotation of the head and neck and greater fatigue of the neck muscles than a vertical backrest. Additionally, the higher was the subject's head extended above the top of the backrest, the more complicated the head and neck rotation was and the more intense the stretching of muscles was. We conclude that, when sleeping in a sitting position without head support, passengers were more likely to experience neck muscle fatigue with the reclined backrest than with the vertical backrest. Passenger height was also found to be an important factor contributing to head and neck fatigue. On the basis of the experimental results, we offer suggestions for the design of backrests to improve passengers' sleeping experience. Our research and suggestions provide a new path for innovation in the design of economy-class seats and could help to improve the travel experience.     

飞机座舱侧壁隔声的工程分析

民用飞机座舱侧壁结构设计需要符合隔声要求,故大部分都采用双壁构造,内部 填有不同形式的吸声层、阻尼层、蜂窝夹芯层及空气隙等,本文着重讨论这类双壁构 造隔声的工程分析方法。     

航空零件装配后的加工

对飞机起落架零件装配后的加工工艺进行了实例阐述,给出了在零件不碰伤,不变形的情况下,如何保证装配部位的位置度和同轴度的优化工艺。     

航空无损检测技术发展动态及面临的挑战

简要叙述了航空领域无损检测技术的最新进展及一些特殊需要解决的问题，并就如何发展该领域的未来无损检验技术进行了探讨。     

智能式飞机刹车组件试验系统及其压力控制研究

为了进行飞机刹车组件功能试验,研制了一种新型的试验控制系统。建立了试验系统的数学模型,试验系统采用模糊PID控制的方法实现了对电液比例阀的闭环控制,从而对系统压力的变化进行了实时调节。试验及仿真的结果表明：采用新型功能试验控制系统,提高了压力的控制精度、缩短了调节时间,并且抗干扰性能增强。     

新一代便携式飞机称重系统的研制及应用

介绍了一种新研制出的便携式飞机称重系统，较详细的介绍了系统有很低的原理及应用。