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飞行甲板是航母舰载机起降、调运、保障、布列最重要的作业场所,其设计工作在航母总体设计中占有重要地位,很大程度上决定了舰载机出动回收保障能力和航母综合作战效能.本文针对美国海军二战后至今研制的5型航母,分析其飞行甲板布局演变过程,梳理总结美国航母飞行甲板设计思想和启示. 相似文献
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马世强 《舰载武器(含VCD光盘)》2007,(11):70-77
舰载机在甲板上的降落是一个充满了各种危险的过程,过前、过后或靠左、靠右都会造成冲出甲板或与舰上其他飞机相撞的危险,甲板的横摇幅度过大也会使舰载机机轮触及甲板时产生倾覆。甲板降落方式还带来了飞机结构增重,严重影响了舰载机的战技性能,与同类型的陆基作战飞机相比,几乎所有的舰载机战术技术性能都有相当大的下降。为满足舰载机安全降落要求,航母的设计者不得不采用放大排水量和加大飞行甲板面积这两个迫不得已的办法来降低事故率。在关于中国航母的讨论中可以看出,大家对舰载机的起飞方式给予了极大的关注。实际上对于许多国家来说,降落安全性才是发展航母的技术瓶颈,可以说,只要掌握了舰载机的降落技术,也就等于拿到了建造航母的通行证。增加航母的排水量是一种降低舰载机降落难度的方法,但要达到比较理想的效果,航母的造价就会大幅度上升,这又形成一道资金关口,同样是许多国家难于承受的。正是由于降落问题如此严重,以至于十多年前许多航空专家都认为短距起飞垂直降落是舰载机的的最佳发展方向。
舰载机的降落技术是一个不断完善和发展的课题,这方面的相关技术包括飞机的性能、航母飞行甲板的设计、能帮助飞行员完成降落的仪器设备等。从最早的人工引导和飞行员目视着舰发展到利用光学设备和雷达制导着舰已经经历整整半个世纪,已经有不少文章谈论到舰载机的安全降落问题,本文在此基础上试对常规舰载机降落技术的历史、现状及未来发展等方面再进行了一番探讨,也许还能给读者一些新的感受。[编者按] 相似文献
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航母航空弹药组成及需求分析 总被引:2,自引:2,他引:0
为了保证持续的打击能力,舰载机必须往返于航母和战场上空,通过飞行甲板上的挂弹作业完成弹药补给,因而挂弹架次以及弹药需求量对于航空作业的规划安排具有重要意义。针对美国现役"尼米兹"级航母及其舰载机F/A-1 8E/F"超级大黄蜂",重点分析了航母航空弹药类型及舰载机挂弹配置;讨论了作战架次的基本组成并总结了挂弹架次计算的基本步骤。以"尼米兹"级和"福特"级航母为例,详细计算了挂弹架次以及航空弹药需求量,并对弹药库自持力进行分析。结果表明,舰载机挂弹架次和航空弹药需求之间存在互相制约的关系。弹药需求量的分析对于航母设计和作战使用具有一定参考价值。 相似文献
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舰机适配性是实现飞机上舰和保障安全使用、实现舰载机高效出动回收的关键,其设计是一个在各种限制和矛盾中不断权衡取舍、并实现最优化配置的过程。本文主要分析美国F-35舰载战斗攻击机与其搭载平台(大型航母、两栖攻击舰以及带滑跃甲板的小型航母)的适配性设计考量及设计方法,为国内相关工作开展提供参考。 相似文献
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2004年4月19日,正值中美两国第三个双边海运协定即将正式生效和实施之际,中国远洋运输集团与西雅图港务局共同在美国西部美丽的港口城市--西雅图举行系列庆祝活动,纪念中远柳林海轮首航美国西雅图港25周年. 相似文献
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5月12日,对于阿联酋国际航空公司来说,又是一个大喜的日子.就在这一天,阿联酋国航空公司在上海金茂大厦被授予"飞抵中东最佳货运航空公司"奖牌,成为全球唯一一家连续第16年获此殊荣的航空公司.在2004年航空货运博览会上,阿联酋国际航空货运部副总裁彼得·塞格利先生接受了记者的采访. 相似文献
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美国MBA教育改革的借鉴与思考 总被引:3,自引:0,他引:3
基于对美国MBA教育改革的考察和研究,阐述美国MBA教育在培养目标、课程设置、教学管理、教学手段、缋效评价等方面的发展变化和改革内容,为中国MBA教育的提高和完善提供借鉴和改革思路。 相似文献
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Tetsuya Yao Yoichi Sumi Hiroyasu Takemoto Atsushi Kumano Hidetoshi Sueoka Hideomi Ohtsubo 《Journal of Marine Science and Technology》1998,3(4):181-193
In the early morning of January 2, 1997, a Russian tanker, the MVNakhodka, broke in two in the Sea of Japan. The fore part of the vessel drifted and was stranded on the coast of Japan, and the aft
part sank. The coast of Japan was seriously polluted by spilled heavy oil. Following this disaster, the Japanese Government
established a Committee for the Investigation of the Causes of the Casualty of theNakhodka. This paper deals with the structural strength of MVNakhodka at the time of the accident. First the structural characteristics of theNakhodka are described, and the reduction in thickness of the structural members are estimated based on the data measured on the fore
part of the vessel which drifted ashose. Then the ultimate longitudinal strength of the hull girder at the time of the accident
is evaluated by applying Smith's method, and the possibility of break-up collapse due to excess loads is discussed. The mechanism
of fracture at the bottom plate is also discussed based on the observed fracture surfuce of the cross section. Finally an
FEM (finite element method) simulation of the break-up of the hull girder is performed. It is shown that buckling/plastic
collapse took place at the deck plate near Fr.153, which was followed by the successive buckling collapse of the side shell
plate of the hull girder. Right after the collapse of the deck structure, the bottom plate fractured just in front of the
transverse bulkhead at Fr.153.
This article is based on an article that appeared in Japanese in the Journal of the Society of Naval Architects of Japan,
vol. 183 (1998). 相似文献
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MVNakhodka collapsed and broke in two on January 2, 1997 in the Sea of Japan, giving rise to a serious and disastrous oil spill on the
coastline of Japan. During the inquiry into the cause of the accident, one of the main tasks of the inquiry committee was
to identify the external loads which made the ship structure collapse. Among the several possible scenarios for the accident,
after careful examination, the wave loads in the heavy weather at the time of the accident were taken to be the most plausible
cause. The results of that research are described in two papers, and the present paper deals with the way in which wave loads
on theNakhodka at the moment of the accident were estimated. We first describe the details of the accident such as the location, the sea
condition, the loading condition, and the ship's heading speed. Then the static loads resulting from the distribution of the
cargo weight and the buoyancy are given to show that the static bending moment at the time of the accident caused extreme
sagging. Next the wave loads in the irregular waves, calculated by the nonlinear time domain simulation program SRSLAM, are
presented. It is shown that the bending moment in the waves reaches 1 087 800 KN*m at maximum SS 6.9, which is where the hull girder collapse took place. It was concluded that the ship broke in two because
the bending moment exceeded the hull girder strength which had been reduced due to corrosion, taking into account conclusions
derived from the research dealing with the structural strength aspect. We also discuss the stochastic significance of the
estimated value and nonlinear nature of the peak distribution, in addition to the effects of the ship speed and wave heading
on the wave load estimation.
This article is based on an article that appeared in Japanese in the Journal of the Society of Naval Architects of Japan,
vol. 183 (1998). 相似文献
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新版《中华人民共和国船员培训管理规则》简析 总被引:1,自引:0,他引:1
新颁布的《中华人民共和国船员培训管理规则》已于2009年10月1日起正式实施。阐述新培训规则产生的背景,比较新旧培训规则的差别,指出新培训规则的优点。 相似文献
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基于MK37鱼雷的发展历程,指出了MK37鱼雷发射参数的同步设置与非同步设置种类划分情况,并针对不同作战使用需求,论述了MK37鱼雷发射参数的技术设置与战术使用要求方法。 相似文献