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为明确民用运输类飞机结构修理适航要求,对国内外适航规章、程序及民机制造商制定的修理手册进行了研究。总结了适航规章对修理的定义和分类要求,以及民机制造商对结构修理种类的划分方法。对比分析了国际主要民航局及民机制造商对超出持续适航文件的结构修理的审批方式。针对国内缺乏结构重要修理和一般修理分类标准的问题,制定了重要修理的判断标准,保证了超出持续适航文件的结构修理分类的准确性和审批的及时性。 相似文献
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对民航客机旅客座椅垫/椅套初始适航和持续适航的要求进行研究分析,提出飞机和座椅持续适航文件(ICA)中关于椅垫/椅套适航要求存在的问题,最后对椅垫的适航管理提出了一些建议。 相似文献
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本文统计分析了近年来我国机队规模、维修单位、维修人员等的数量与持续适航监察员资源的对比,得出了在监察员数量短期内不能大幅增加的情况下,保证航空器持续适航安全的有效方式是提高现有持续适航监察员的技能水平的结论。并通过研究ICAO相关文件对持续适航监察员的要求,同时结合我国持续适航监管工作的实际情况,制定了持续适航监察员培训大纲,为下一步我国持续适航监察员的能力水平提升提出了解决方案。 相似文献
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许海峰 《民用飞机设计与研究》2011,(2):52-55
持续适航文件和其他技术出版物是由飞机制造商提供的保持飞机固有安全性水平的重要资料。对持续适航文件编制过程中影响文件质量的人为因素问题进行了分析,并对如何提高文件质量提出了建议。 相似文献
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张斌周宇穗王澍周伟 《民用飞机设计与研究》2013,(3):62
飞机燃油箱系统的点火源防护设计是保证飞机安全和适航取证的关键技术之一,开展该领域的研究很有必要。通过参考相关FAA咨询通告,对25.981条款(102修正案)进行逐条解析,归纳出燃油箱点火源防护的符合性分析思路、防护要求及设计指南,并总结出相应的符合性验证方法;其中针对点火源防护的持续适航要求,归纳出编制持续适航文件的原则和思路。 相似文献
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阐述和分析了基于S1000D的民用直升机持续适航文件的种类、数据模块、流程、组成及验证等内容,本文可以为民用直升机持续适航文件的编制和管理提供方法和参考。 相似文献
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通过梳理CAAC和FAA法规与规范性文件,对法规修订后重要修理管控要求变化和航空公司对超持续适航文件一般修理的批准程序建立进行研究,提出航司面临的问题,给出相应的管理建议,为局方、航空公司完善其管理措施提供参考。 相似文献
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Yongjie ZHANG Zheng YANG Xianchao MA Wenjun DONG Dayong DONG Zhaoguang TAN Shuai ZHANG 《中国航空学报》2019,32(8):1828-1846
Commercial aircraft family design can reduce development costs, shorten development cycles, and expand the market coverage of aircraft. Commercial aircraft family development has become one of the most important features of modern aircraft design. This paper explores the effects of commonality on different aircraft models in a commercial aircraft family. The existing product commonality indexes are summarized and their limitations in the application to aircraft design are discussed. Then a new component commonality index is proposed based on the component decomposition structure. A model for calculating the aircraft program value is established,which considers development costs, manufacturing costs, sale price, operation costs and residual costs. The effects of aircraft commonality on time and economic costs of both development and manufacturing, and on sale price, are analyzed and quantified. The commonality evaluation strategy is obtained, which features comprehensive consideration of the aircraft program value and time costs. The break-even analysis of aircraft is proceeded on the basis of costs and price data. By using a real option method, the strategy considers the uncertainty of the aircraft program and the flexibility of the manufacturer. This strategy proves to be rational and applicable to aircraft design based on the calculation of three examples and the analysis of parameter sensitivity. 相似文献
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3.2 失速特性失速特性试飞是在巡航(襟翼收上,起落架收上)、起飞(襟翼15°,起落架收上)和着陆(襟翼38°,起落架放下)三种构形下,后重心28%b_A,飞机质量为21.4~19.7t范围内进行的。慢车直线飞行失速特性试验的发动机油门为17°,扭矩压力为1.9 MPa。带动力直线飞行和转弯飞行失速特性试验的发动机功率为1.6V_(s1)平飞功率,即油门为30°,扭矩压力约为3.0MPa。失速特性试验的后重心改在28%b_A,而不是在设计后重心33%b_A,这是考虑到Y—7 相似文献
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Weight penalty has been a challenge for design engineers of aerospace vehicles. Today’s high-efficiency combat aircraft undergoes intense stress and strain during flying missions, which require stronger and stiffer materials to retain structural integrity. Though metallic materials have been successfully used for the construction of aircraft structures and components, metals still have a low strength-to-weight ratio. This paper aims to develop an alternate optimised material selection methodolog... 相似文献
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《中国航空学报》2021,34(11):169-181
With the wide application of electronic hardware in aircraft such as air-to-ground communication, satellite communication, positioning system and so on, aircraft hardware is facing great secure pressure. Focusing on the secure problem of aircraft hardware, this paper proposes a supervisory control architecture based on secure System-on-a-Chip (SoC) system. The proposed architecture is attack-immune and trustworthy, which can support trusted escrow application and Dynamic Integrity Measurement (DIM) without interference. This architecture is characterized by a Trusted Monitoring System (TMS) hardware isolated from the Main Processor System (MPS), a secure access channel from TMS to the running memory of the MPS, and the channel is unidirectional. Based on this architecture, the DIM program running on TMS is used to measure and call the Lightweight Measurement Agent (LMA) program running on MPS. By this method, the Operating System (OS) kernel, key software and data of the MPS can be dynamically measured without disturbance, which makes it difficult for adversaries to attack through software. Besides, this architecture has been fully verified on FPGA prototype system. Compared with the existing systems, our architecture achieves higher security and is more efficient on DIM, which can fully supervise the running of application and aircraft hardware OS. 相似文献
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根据Y7-200B飞机失速试飞结果,从飞机的气动设计特点出发,与原型机对比分析了飞机的失速特性。结果表明,Y7-200B飞机的气动设计改进目前还没有达到降低失速速度,提高安全裕度的预期设计目标。主要原因在于气动设计和操纵系统的改进针对性不强,改进措施不协调,为此必须进行综合的分析,系统地采取有效改进措施。 相似文献
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段本印 《民用飞机设计与研究》2015,(1):83-86
概述了申请人的航空器评审工作,并简要对比分析了运行符合性清单、型别等级和训练要求、MMEL、MRBR、OCAI等11个AEG工作评审项目。同时通过对比分析航空器评审组(简称AEG)评审与型号合格审定之间的区别和联系,为申请人顺利开展AEG工作提出4条建议。 相似文献
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侯盼盼周健 《民用飞机设计与研究》2013,(2):64-67
民用飞机是特殊商品,不同航空公司以及同一航空公司的不同发展阶段,由于其产品经营理念的差别,几乎每架飞机都是与众不同的,因此飞机产品客户化是航空公司和飞机制造商共同关注的话题。空客公司的民用系列飞机获得了世界的认可,其客户选型工作可以提供很好的参考。通过研究分析空客公司的客户选型相关工作,为我国大型客机客户化设计积累必要的技术储备和参考借鉴,并为我国大型客机产品客户化提出了研究方向。 相似文献