PMA件的市场定位

尽管PMA件的安全性已被业内所公认,但在实际应用中却障碍重重、屡屡受阻。     

按需提供的数字化培训

随着年轻的“互联网一代”加入航空维修业，通用电气公司（GE）提供的按需式数字化“即时培训”非常实用。通过互联网访问GEnx-1B的中央维护计算机，即可获得最先进的技术培训资料，学习燃油系统的进修课程，选择压气机和高压涡轮叶片涂层修理的专业课程，以及GE90风扇叶片尖隙的检查程序课程等。     

稀土金属涂层

在热障涂层中加入稀土金属成分可以延长发动机高压涡轮叶片在高温环境中的使用寿命。日前,铬合金公司开发了一种含有稀土金属的新型热障涂层,被称为RT-135涂层,主要用于空气等离子喷涂。与RT-35或Lowk涂层一样,     

NRCC的复合材料最新研究

研发一种可承受大载荷的飞机复合材料部件与研发相同的金属材料部件所面对的挑战完全不同,因为制造大的复合材料部件往往需要特殊的、昂贵的设备以及经验丰富的技术人员。     

新型硅胶隔音材料

用于客舱墙壁的新型硅胶隔音材料,其弯挠性更好,可紧贴于客舱壁面,使客舱更安静。飞机发动机的运行声音或者高速气流产生的声音都可能引起噪声,影响客舱内的乘客。众所周知,减轻噪声的方法之一是在客舱墙壁中采用隔音材料。但并不是所有     

CF6-80C2发动机的修理新技术

2010年,GE航空集团计划投资4000万美元开发1000个修理项目,其中包括开发CF6-80C2发动机的新的修理能力。尽管这款长达25年之久的机型进入了其全寿命周期的最终阶段,但GE航空集团仍与汉莎技术公司合作为该型发动机开发一些新的修理技术。     

电动前起落架

最近,德国宇航中心（DLR）技术学院启动了空客A320的以燃料电池为动力的电动前起落架的地面测试。一旦试验成功,该技术可大幅降低飞机滑行过程中的油耗和噪声。     

Life at the wedge: the activity and diversity of arctic ice wedge microbial communities

The discovery of polygonal terrain on Mars underlain by ice heightens interest in the possibility that this water-bearing habitat may be, or may have been, a suitable habitat for extant life. The possibility is supported by the recurring detection of terrestrial microorganisms in subsurface ice environments, such as ice wedges found beneath tundra polygon features. A characterization of the microbial community of ice wedges from the high Arctic was performed to determine whether this ice environment can sustain actively respiring microorganisms and to assess the ecology of this extreme niche. We found that ice wedge samples contained a relatively abundant number of culturable cells compared to other ice habitats (～10(5) CFU·mL(-1)). Respiration assays in which radio-labeled acetate and in situ measurement of CO(2) flux were used suggested low levels of microbial activity, though more sensitive techniques are required to confirm these findings. Based on 16S rRNA gene pyrosequencing, bacterial and archaeal ice wedge communities appeared to reflect surrounding soil communities. Two Pseudomonas sp. were the most abundant taxa in the ice wedge bacterial library (～50%), while taxa related to ammonia-oxidizing Thaumarchaeota occupied 90% of the archaeal library. The tolerance of a variety of isolates to salinity and temperature revealed characteristics of a psychrotolerant, halotolerant community. Our findings support the hypothesis that ice wedges are capable of sustaining a diverse, plausibly active microbial community. As such, ice wedges, compared to other forms of less habitable ground ice, could serve as a reservoir for life on permanently cold, water-scarce, ice-rich extraterrestrial bodies and are therefore of interest to astrobiologists and ecologists alike. .     

稀土短缺对航空维修市场的影响

随着各种先进的航空制造技术的广泛应用，使飞机从表面上看仿佛是一个整体大部件，而在实际组装和维修中，技术人员为了确保每个紧固件、螺栓和线缆的装配安全则是煞费苦心。尤其是在原材料的选择上，常常需要使用稀土金属，而未来稀土金属的短缺或将成为许多行业发展的障碍。     

值得期待的十大创新技术

随着波音787等新一代飞机的交付和无线射频识别(RFID)等技术的进展,2011年航空维修业将发生一些变化.本文简要介绍十种将对未来航空维修业产生重大影响的新技术.