作者zephyr9114 (当我拿起G36冲出掩体...)
看板Military
标题Re: [问题] F16座舱罩
时间Wed Jul 14 14:43:33 2010
: 做材料的对於材料就非常敏感,想把他搞清楚而已
: 网路上G到的一些片段
: 挑出来的这4个是看起来信赖度较高的,其中有些虽然年代久远,但最後一个中文的是2010
: 的,应能反映出最新的资讯
: "Bubble canopy made of polycarbonate advanced plastics material. "
: http://www.angelfire.com/hi/militaryaviation/F16.html
: The goal of the effort described in this paper was to demonstrate a method of
: explosively fracturing the F-16 polycarbonate canopy to allow through-canopy
: crew ejection.
: http://www.voodoo-world.cz/falcon/info.html
: "Experimental Evaluation of F-16 Polycarbonate Canopy Material"
: http://oai.dtic.mil/oai/oai?verb=getRecord&metadataPrefix=html&identifier=ADB06
: 1170
: "2010年3月Taipei Plas(台北国际塑胶展)两岸论 坛中展示美军F-16采用的座舱罩,便
: 是利用PC(Polycarbonate;聚碳酸酯)材料经「高低模温变换(High/Low Mold Tempera
: ture Alternation)」射出成型而来"
: http://www.composite-gtc.com/node/53
: 首先获得的结论是,座舱罩的材质是PC不是PMMA
推认真,所以是用PC而不是PMMA
: 然後我再用"明胶玻璃"与"座舱罩"为中英文关键字下去咕,找不到这2个词的关联度
: 所以能否请提出座舱罩是用"明胶玻璃"的版友能提供些出处作为佐证?
: 特别是"明胶"这玩意,我怎麽想都想不到他和军武需要的材料品质有关连性......
嗯...,非专业,也不太知道坐舱罩是啥做的,只是刚好知道"明胶玻璃"是一种安全玻璃
而会认识这东西是因为朋友问到安全玻璃的问题才知道这种水溶又常被用作弹道监识的果
冻物原来会出现在安全玻璃里面。
GOOGLE出来多数东西都是子弹如何穿透明胶块...,下面是找到可能有用的资讯
http://taiten1027.spaces.live.com/blog/cns!341B3E29D5F8DD22!10087.entry
明胶是透明无色,因此它本身并不影响曝光或影像的形成。此外,它还可以吸收在曝光期
间释放出来的卤素离子,从而确保潜影的形成。在液态情况下,它还可以刷成平滑均匀的
涂层,其涂层可以像头发丝那样薄,或者在一层或多层的情况下,其厚度是头发丝的几倍
,虽然它本身并不结实,但是它具有柔性,并且容易附着在多种支撑物上(例如,玻璃、
塑料、纸张、金属板),从而提供必要的强度。
http://everything2.com/title/Safety+glass
...Originally, tree resin was used to laminate the glass layers, and later,
gelatin was used in safety glass products during the first world war. ...
...This version of safety glass was the first to see real widespread use –
during World War I. The military quickly saw the advantages of using glass
that would not shatter in such delicate and high-risk applications as airplane
windshields and gas masks. ...
http://www.freepatentsonline.com/4842389.html
Combiners used in prior art holographic head-up display systems most often
comprise a hologram recorded in dichromated gelatin and mounted to a planar
or nonplanar substrate of either transparent glass or plastic. The combiner is
held with suitable support mechanisms within the observer's line of sight. When
it is employed in an aircraft cockpit, the combiner is mounted between the
observer and the aircraft windshield.
(这边是提到HUD)
http://pubs.acs.org/doi/pdf/10.1021/ie50287a002
http://pubs.acs.org/doi/abs/10.1021/ie50257a008
以上两篇都有提到安全玻璃如果是用层叠的中间会用明胶,也有提到...
...During this period it was used for such things as airplane and automobile
windshield, bulletproof glass for tanks, glass for submarines, battleship-
bridge windows, and eye-blank for gask masks and aviators' google...
("DURING THIS PERIOD" 颇令人玩味)
另外关於座舱罩颜色问题...因为我第一时间想到的是金属薄膜涂层,所以GOOGLE了一下,
发现不少都有提到OPTIC COATING(还有CONFERENCE:Optical Interference Coatings)
这是里面的一篇文章,也有提到几种金跟钛的涂层对能见度与反红外线的影响
http://www.opticsinfobase.org/abstract.cfm?uri=OIC-2001-MF2
==============================分隔线==============================
这里开始是问问题...
1.PC跟PMMA跟其他透明的热塑性材质都能当座舱罩没错,那...F-16为何选用PC呢?
强度? CP值? 热塑性? 涂层?....
(其实我是第一次知道PC能当座舱罩)
2.明胶玻璃很难找到相关资料,而LAMINATED GLASS比较好找,虽然上面有提到明胶能当
INTERFACE(接着剂好像怪怪的?),但是LAMINATED GLASS不一定是明胶玻璃?
只要不同材料层层叠就是LAMINATED GLASS....
3.座舱罩颜色前後不同会不会纯粹是因为驾驶员想耍帅...? 作用类似机身的涂装?
(涂成红色再加一支角,永远不穿驾驶服进驾驶舱XD)
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◆ From: 118.166.248.129
※ 编辑: zephyr9114 来自: 118.166.248.129 (07/14 14:47)
1F:推 kennethx :耍帅?绝对不可能...这部份飞官管不到 61.62.79.81 07/14 17:36