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标题: 还让不让人活了?!又出新头盔了ECH [打印本页]

作者: 2008 时间: 2009-9-5 17:15
标题: 还让不让人活了?!又出新头盔了ECH
据美国《陆军时报》9月1日报道，美军正准备大规模购进一种用超轻、高强度的“超高分子量”聚乙烯材料打造的增强型战斗头盔(ECH)。军方官员称，这种新头盔采用先进的结构设计，是“技术上的巨大飞跃”，甚至可以抵挡7.62mm步枪的直射。　　普通头盔对防御流弹和弹片很有效，但在遭到直接射击时就显得脆弱。美军目前装备最多的“凯夫拉”头盔号称能抗步枪子弹，但实战经验显示，子弹往往能深入头盔，冲击力容易使佩戴者的颈椎骨折。阿富汗战争开始后，美军意识到这个问题，并大规模采用了升级版的先进战斗头盔(ACH)，但效果在后来的伊战中仍不甚理想。于是，在怨声最大的海军陆战队牵头下，美军于2007年启动了新一代头盔的设计工作。
　　ECH的研发获得了大量资金支持，近两年军方共争取到了1060万美元国会拨款。包括英国航宇公司(BAE)在内的4家主承包商已推出头盔原型，预计在下个月进行实弹测试。如果进展顺利，美军将从明年开始批量采购，陆军计划购入20万顶，海军陆战队计划购入3.5万顶。有陆军官员信心满满地表示，新头盔“可能戴在每位士兵的头上”。
　　一直以来，美军的头盔都采用弹道纤维制造。这种特殊的纤维根据弹道学原理，能确保头盔最大程度地抵挡攻击。ECH使用的则是在民用领域随处可见的聚乙烯，这也是近30年来，美军第一次在头盔设计中抛弃专用材料，转而使用商用材料。此举自然引起了很多人的质疑，有反对者声称这是拿几十万士兵的生命开玩笑。
　　面对批评，军方倒是显得信心十足。陆军士兵防护装备产品经理部经理乔恩·里克称，ECH和ACH外观相差不大，只是厚一点，由于采用了特殊设计，其防护能力至少提高了35%。尽管拒绝透露新头盔的具体参数，他还是强调，ECH主要用来抵挡弹片和手枪子弹，并可以在保证佩戴者基本安全的前提下，承受口径至少为7.62mm的步枪直射。本报特约撰稿　森堡

2009年09月05日 09:49 青年参考

作者: 2008 时间: 2009-9-5 17:43
Army’s new plastic helmet tops Kevlar ACH

By Matthew Cox and Dan Lamothe - Staff writers
Posted : Tuesday Sep 1, 2009 7:15:53 EDT

The Army intends to start issuing a new combat helmet made of a special plastic capable, for the first time, of stopping penetration by enemy rifle rounds.

Officials from Product Manager Soldier Protective Equipment plan to buy 200,000 Enhanced Combat Helmets that depend on “ultra-high molecular weight polyethylene” instead of ballistic fibers such as Kevlar and Twaron used in the current Army Combat Helmet. Developmental testing on prototypes from four companies is scheduled to begin next month, and Army officials hope to start fielding by mid-2010, said Lt. Col. Jon Rickey, the head of PM Soldier Protective Equipment. These advanced thermoplastic materials offer “a degree of ballistic protection that is greatly improved over the ACH,” Rickey said.

Congress has appropriated $10.6 million for the Army’s ECH program, $4 million in fiscal 2008 and $6.6 million in fiscal 2009, Rickey said.

The Marine Corps-led ECH effort began in 2007 when the industry presented samples of the highly durable, lightweight ballistic materials.

“Industry approached [both services] with these different materials,” said Rickey, describing how the Army has worked closely with the Marines on the program. “We did believe we had a technological opportunity really for a next generation of materials inside the helmet.”

Lt. Col. A.J. Pasagian, head of the Corps’ infantry combat equipment program at Marine Corps Systems Command, compared the new helmet’s potential to that of the revolutionary Gatling gun introduced in the 1860s.

“We’re taking a giant leap,” Pasagian said. “We found out there’s a lot of viability and a lot of promise and potential in this type of material, so we seized on it.”

The decision means that for the first time in nearly three decades, soldiers and Marines will not wear helmets made of ballistic fibers such as Dupont’s Kevlar. The new plastic, used commercially in everything from artificial hip replacements to police body armor, offers more protection from fragmentation in explosions and the ability to stop some small arms, Pasagian said.

Pasagian outlined the material’s benefits Aug. 5 at the 2009 Marine Gunner Symposium in Reston, Va., telling the Corps’ infantry weapons experts that the effort to build the next combat helmet has been fast-tracked by Commandant Gen. James Conway.

“He said, ‘I’ve got to have something right now. Go!’” Pasagian said. The program, based at Marine Corps Base Quantico, Va., in July awarded contracts worth a total of about $5.5 million to four companies for developmental test quantities of helmets. The companies are Mine Safety Appliances Co. of Pittsburgh, Pa.; BAE Systems Aerospace & Defense Group Inc. of Rockville, Md.; Gentex Corp. of Carbondale, Pa.; and Ceradyne Inc. of Costa Mesa, Calif.

Ceradyne officials said their contract allows the government to purchase 310 to 246,840 helmets over the next two years, depending on how their product fares in testing. Specific contract details for the other companies were not immediately available.

Secret stopping power
It’s unclear what kind of rifle round the new helmets will stop. For nearly two years, though, finding a new helmet that can stop a 7.62mm round — the caliber of ammunition used in the AK47 assault rifle favored by combatants in Afghanistan, Iraq and elsewhere — has been a top priority, Conway has said. program officials continue to remain quiet on specifics, citing operational security.

However, the new helmet must offer at least 35 percent more protection against fragmentation and handgun and small-arms fire, Marine officials said. That would be a significant upgrade over the existing Advanced Combat Helmet adopted by the Army in 2002 and the Lightweight Helmet fielded by the Corps about a year later. Both of those helmets are designed to protect against fragmentation and handgun ammunition.

Army officials would not discuss specific ammunition the new ECH will stop, but confirmed it will stop penetration by at least some rifle rounds.

“We would like to achieve 7.62mm,” Rickey said, but cautioned that that covers a wide range of rounds and that maximum protection levels will be finalized during testing.

Army officials acknowledged that wearing a helmet capable of preventing penetration by rifle rounds could save lives, but would also mean increased risk of head and neck trauma because of the force of a bullet hitting the headgear.

“Our immediate goal is to save soldiers’ lives, and our next step is to prevent” injuries such as traumatic brain injury, Rickey said.

The ECH will look very much like the ACH but will be “a little bit thicker,” Rickey said.

The ACH design is “combat tested and proven; it does work,” he said. “You have to be really good to tell the difference between the ACH and the ECH.”

Marine program officials intend also to review options for the future helmet’s suspension system but cannot afford to wait on the shell, Pasagian said.

The Army plans to use the current pad system, since it is “the best available,” said Army program engineer Michael Van Buskirk, who added that the service is constantly looking for improvements to the pad system.

The Army’s initial requirement for combat brigades is 200,000 ECHs, but ultimately the service wants to issue one to every soldier, said Maj. Christopher Metz, assistant product manager for Head Protection.

“We have been in this war for eight years; we know soldiers are dying,” Metz said. “Our job is to make the best product available to protect that soldier’s life and get them back home to their family.”

作者: 2008 时间: 2009-9-5 17:45
开始以为是袋鼠国的ECH

http://www.defence.gov.au/news/a ... stories/story01.htM

作者: 痘痘狼 时间: 2009-9-5 17:51
出之，收之！我们不必多操心这些，正式装备了收就是了，貌似是GENTEX公司的产品。。。。。。

作者: terry_001 时间: 2009-9-5 18:10
痘痘老大，科普下这个材料能防弹么？

貌似聚乙烯就是塑料吧？

而且，如果防弹级别高到可以防止7.62口径的北约弹直射。脖子貌似也受不了啊。

作者: 痘痘狼 时间: 2009-9-5 18:28
可能就是ＰＥ材料。。。。。。法国人貌似用这材料做过盔。。。。。。
人的脖子并不是那么脆弱的，适当的缓冲措施能达到这个效果。。。。。。

作者: 解玉彬 时间: 2009-9-5 18:47

痘痘老大，科普下这个材料能防弹么？

貌似聚乙烯就是塑料吧？

而且，如果防弹级别高到可以防止7.62口径的北约弹直射。脖子貌似也受不了啊。
terry_001 发表于 2009-9-5 18:10

很久之前CCAV某节目也播放了，国产的某头盔一样可以近距离防止7.62穿透，但是....只是头盔没有穿透而已，头盔瞬间变形大半啊，也就是说里面的脑袋变馅饼了........

作者: 痘痘狼 时间: 2009-9-5 18:55
凯芙拉等非金属复合材料的形变不会那么大，ＬＳ要搞清楚材质。。。。。。不是同一类似的没有可比性。。。。。。

作者: wjxsm 时间: 2009-9-5 20:51
那岂不是遇高温就熔化了?

作者: 云豹 时间: 2009-9-5 22:01
通过融化吸收能量？

内涵

作者: Benzheung 时间: 2009-9-6 02:37

作者: 2008 时间: 2009-9-6 09:18

出之，收之！我们不必多操心这些，正式装备了收就是了，貌似是GENTEX公司的产品。。。。。。
痘痘狼发表于 2009-9-5 17:51

这几年装备更新太快

头盔没两年就换

还是PASGT好，通用20年时间

还有装具制服，看来确实是拉动内需的好方法

作者: QGF 时间: 2009-9-8 23:17
迪尼玛公司貌似擅长高模量聚乙烯的应用

作者: terry_001 时间: 2009-9-9 01:13

可能就是ＰＥ材料。。。。。。法国人貌似用这材料做过盔。。。。。。
人的脖子并不是那么脆弱的，适当的缓冲措施能达到这个效果。。。。。。
痘痘狼发表于 2009-9-5 18:28

谢谢痘痘老大！

作者: Seafox 时间: 2009-9-13 23:21

很久之前CCAV某节目也播放了，国产的某头盔一样可以近距离防止7.62穿透，但是....只是头盔没有穿透而已，头盔瞬间变形大半啊，也就是说里面的脑袋变馅饼了........
解玉彬发表于 2009-9-5 18:47

实际战场上，直接被枪弹命中钢盔的概率不大，你说的是直接对钢盔射击试验。头盔战场上主要防护的是各种破片，拿枪弹射击也就是用来表示防护等级，真的被枪弹直接命中头盔，概率很小。所以上次约翰牛被击中，都是大新闻了……

作者: nhssunny 时间: 2009-9-14 05:50

很久之前CCAV某节目也播放了，国产的某头盔一样可以近距离防止7.62穿透，但是....只是头盔没有穿透而已，头盔瞬间变形大半啊，也就是说里面的脑袋变馅饼了........
解玉彬发表于 2009-9-5 18:47

头骨碎裂？？？恐怖。。

作者: 元宝 时间: 2009-9-16 14:11
靠，美国的基础科学扎实啊。。

材料，材料。。。um，怨念。。。

作者: cwzjack 时间: 2009-9-16 18:31
除了这个，好象NSWDG都订了OPS-CORE的FAST头盔。

作者: andyliusu 时间: 2009-9-18 13:47
haha, NZ army just got issue for ACH.

作者: heyaorv 时间: 2009-9-28 16:46
说起“超高分子量聚乙烯”这种材料，美国可是要排在中国后面的。。。记得3年前看过一片相关材料，说是当时中国已超越日本成为“超高分子量聚乙烯”军民两用合成材料技术世界第二先进的国家了。当时排在第一的是一个北欧国家，具体是挪威还是荷兰我给忘了，文章当时还特意强调了一下美国要排到5名以外了。。。

作者: 紫星勋 时间: 2009-9-30 09:56
聚乙烯能防弹？？？？搞不懂了。。。。。

作者: 天哪 时间: 2009-9-30 14:41
装备与生存2里那件防弹插板我印象很深，虽然厂家条件比西方大厂简陋得多，但是做出来的东西防护力那么强，而且居然可以漂在水上！我对国内的防弹技术有信心了！

作者: 天哪 时间: 2009-9-30 14:42
装备与生存2里那件防弹插板我印象很深，虽然厂家条件比西方大厂简陋得多，但是做出来的东西防护力那么强，而且居然可以漂在水上！我对国内的防弹技术有信心了！

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