超级军网来贵地向大家求点资料！！~
来源：百度文库 编辑：超级军网 时间：2024/05/02 09:12:20
大家好，来这里求大家提供点资料信息！
开题在即，老师突然让看看电磁弹射方面的东西， 希望能设计相关的直线电机。
对我无疑是晴天霹雳，以前一直看的都是抽油机 电梯之类的知识，
现在超星 期刊网 维普都没找到什么电磁弹射的文章
更别说详细点的技术资料了， 哪位大哥大姐能给我介绍点？？？
小妹感激不尽！
一来就提要求，勿怪！~ [em20]
goodmanpw@163.com大家好，来这里求大家提供点资料信息！
开题在即，老师突然让看看电磁弹射方面的东西， 希望能设计相关的直线电机。
对我无疑是晴天霹雳，以前一直看的都是抽油机 电梯之类的知识，
现在超星 期刊网 维普都没找到什么电磁弹射的文章
更别说详细点的技术资料了， 哪位大哥大姐能给我介绍点？？？
小妹感激不尽！
一来就提要求，勿怪！~ [em20]
goodmanpw@163.com
开题在即，老师突然让看看电磁弹射方面的东西， 希望能设计相关的直线电机。
对我无疑是晴天霹雳，以前一直看的都是抽油机 电梯之类的知识，
现在超星 期刊网 维普都没找到什么电磁弹射的文章
更别说详细点的技术资料了， 哪位大哥大姐能给我介绍点？？？
小妹感激不尽！
一来就提要求，勿怪！~ [em20]
goodmanpw@163.com大家好，来这里求大家提供点资料信息！
开题在即，老师突然让看看电磁弹射方面的东西， 希望能设计相关的直线电机。
对我无疑是晴天霹雳，以前一直看的都是抽油机 电梯之类的知识，
现在超星 期刊网 维普都没找到什么电磁弹射的文章
更别说详细点的技术资料了， 哪位大哥大姐能给我介绍点？？？
小妹感激不尽！
一来就提要求，勿怪！~ [em20]
goodmanpw@163.com
斑竹能不能帮我置顶几天啊~~~
[em09] 奢望呢
[em09] 奢望呢
http://plmmm.net/the_ship_electr ... ion_of_ele_7049.htm
你是搞设计的啊 去这里看看吧 电磁弹射器我军还没有 看美国的去吧
你是搞设计的啊 去这里看看吧 电磁弹射器我军还没有 看美国的去吧
建议搂住去查查最近几年的舰船知识，会有一点介绍，但只是科普水平。
http://www.wanfangdata.com.cn/qi ... 003/0304/030416.htm
再看看这个 你要是研究生的话应该会用这个系统吧
再看看这个 你要是研究生的话应该会用这个系统吧
轩辕明 谢谢你
你说的这两篇文章 我都看了
只是没有整个弹射器性能的详细介绍 很恼火！~
再次谢谢你!
你说的这两篇文章 我都看了
只是没有整个弹射器性能的详细介绍 很恼火！~
再次谢谢你!
不客气．我觉得应该没有吧 这东西毕竟对任何国家来说都是机密级别的 你去查美国的期刊数据库吧 原版的应该更详细 国内即使有研究也不会发表的很详细
Magnets to replace steam catapults
By Scott R. Burnell
UPI Science News
Published 8/22/2002 8:15 PM
WASHINGTON, Aug. 22 (UPI) -- Naval developers are examining how to replace today's steam-powered aircraft carrier catapults with an electromagnetic arrangement similar to a magnetic levitation train, officials and contractors said Thursday.
The Electromagnetic Aircraft Launch System is considered a key element of the U.S. Navy's next-generation nuclear aircraft carrier, which senior officials said is scheduled to start construction in the 2006 timeframe and become active around 2012.
General Atomics, a contractor in San Diego, and Northrop Grumman, the aerospace company of Sunnyvale, Calif., are currently building candidate EMALS systems for evaluation, said Richard Bushway, who manages the program at Naval Air Systems Command in Patuxent River, Md.
The 300-foot-long device would use electric pulses to drive planes off the flight deck at between 65 mph and 225 mph, depending on the type of aircraft, Bushway said.
"The launch motor is a linear induction motor, which is similar to what (magnetic levitation) trains use, Bushway told United Press International. "The difference is we're not levitating the (launch sled). The basic principle of creating a magnetic wave on which the (sled) and hence the aircraft rides is similar to maglev transportation vehicles."
Relying on electric current to generate force, instead of expanding steam, means designers can "tune" the EMALS performance for a future carrier's more diverse payload, he said.
"We're trying to expand the envelope over what we can currently do with steam catapults, especially on the lightweight aircraft end (with) unmanned air vehicles (and) unmanned combat air vehicles," Bushway said. "For very lightweight aircraft, the steam cat ... loads the airframe with about twice (the force necessary) to get it off the deck."
Current catapults can vary significantly, launch to launch, in how fast they shove a plane into the air, forcing carriers to head into the wind at full speed to ensure successful takeoffs. This leaves the ship traveling in a vulnerable straight line, Bushway said. The EMALS' ability to reliably generate consistent launch speeds would give a carrier's captain leeway in choosing his course and speed, he said.
The linear induction motor sometimes is referred to as "amusement park technology," but if designers can provide EMALS with enough energy, the motor is easily capable of running a catapult, said Tony Kopacz, General Atomics' program manager for EMALS. In terms of safety and reliability, the design calls for enough redundancies to reduce the chance of a launch failure to one in 10 million, Bushway said.
As difficult as it is to engineer a system to store and discharge the current needed to launch 100,000-pound aircraft repeatedly, perhaps the biggest challenge comes after the plane has left the deck, Kopacz said. The launch sled still has to be stopped in the space of a few feet without damaging it, he told UPI.
Steam catapults slam their sleds into a water brake mechanism, he said, but such an approach is not wise with a system sensitive enough to be driven by a magnetic wave. There are principles available to do the job, such as using an opposing magnetic field to slow the sled down (with the possible added bonus of generating electricity at the same time), but Kopacz declined to elaborate on his company's approach.
Solving all these challenges will provide multiple payoffs for the Navy, Bushway said. For example, replacing steam pipes and other hydraulic systems with electric cables and motors eventually could reduce the catapult's weight and volume by up to 50 percent, he said. It also could reduce the number of sailors needed for catapult operations by 30 percent while still providing a higher level of reliability.
Electromagnetic fields can interfere with computers and even the human body, but the EMALS concept should avoid those problems, Bushway said. Modeling suggests exposure for crewmen on the flight deck would stay below internationally accepted safety levels and the catapult's generated field would only extend about 6 inches from the deck, well away from a plane's sensitive avionics.
Both contractors are building full-scale models that are one-half the length needed for carrier launches, Bushway said. The systems should arrive at the Navy's Lakehurst, N.J., testing center early this fall for assembly, with evaluations scheduled for next summer. Although he declined to name specific dates, Kopacz said Bushway's timeline is accurate, and General Atomics currently is preparing its test area at Lakehurst.
By Scott R. Burnell
UPI Science News
Published 8/22/2002 8:15 PM
WASHINGTON, Aug. 22 (UPI) -- Naval developers are examining how to replace today's steam-powered aircraft carrier catapults with an electromagnetic arrangement similar to a magnetic levitation train, officials and contractors said Thursday.
The Electromagnetic Aircraft Launch System is considered a key element of the U.S. Navy's next-generation nuclear aircraft carrier, which senior officials said is scheduled to start construction in the 2006 timeframe and become active around 2012.
General Atomics, a contractor in San Diego, and Northrop Grumman, the aerospace company of Sunnyvale, Calif., are currently building candidate EMALS systems for evaluation, said Richard Bushway, who manages the program at Naval Air Systems Command in Patuxent River, Md.
The 300-foot-long device would use electric pulses to drive planes off the flight deck at between 65 mph and 225 mph, depending on the type of aircraft, Bushway said.
"The launch motor is a linear induction motor, which is similar to what (magnetic levitation) trains use, Bushway told United Press International. "The difference is we're not levitating the (launch sled). The basic principle of creating a magnetic wave on which the (sled) and hence the aircraft rides is similar to maglev transportation vehicles."
Relying on electric current to generate force, instead of expanding steam, means designers can "tune" the EMALS performance for a future carrier's more diverse payload, he said.
"We're trying to expand the envelope over what we can currently do with steam catapults, especially on the lightweight aircraft end (with) unmanned air vehicles (and) unmanned combat air vehicles," Bushway said. "For very lightweight aircraft, the steam cat ... loads the airframe with about twice (the force necessary) to get it off the deck."
Current catapults can vary significantly, launch to launch, in how fast they shove a plane into the air, forcing carriers to head into the wind at full speed to ensure successful takeoffs. This leaves the ship traveling in a vulnerable straight line, Bushway said. The EMALS' ability to reliably generate consistent launch speeds would give a carrier's captain leeway in choosing his course and speed, he said.
The linear induction motor sometimes is referred to as "amusement park technology," but if designers can provide EMALS with enough energy, the motor is easily capable of running a catapult, said Tony Kopacz, General Atomics' program manager for EMALS. In terms of safety and reliability, the design calls for enough redundancies to reduce the chance of a launch failure to one in 10 million, Bushway said.
As difficult as it is to engineer a system to store and discharge the current needed to launch 100,000-pound aircraft repeatedly, perhaps the biggest challenge comes after the plane has left the deck, Kopacz said. The launch sled still has to be stopped in the space of a few feet without damaging it, he told UPI.
Steam catapults slam their sleds into a water brake mechanism, he said, but such an approach is not wise with a system sensitive enough to be driven by a magnetic wave. There are principles available to do the job, such as using an opposing magnetic field to slow the sled down (with the possible added bonus of generating electricity at the same time), but Kopacz declined to elaborate on his company's approach.
Solving all these challenges will provide multiple payoffs for the Navy, Bushway said. For example, replacing steam pipes and other hydraulic systems with electric cables and motors eventually could reduce the catapult's weight and volume by up to 50 percent, he said. It also could reduce the number of sailors needed for catapult operations by 30 percent while still providing a higher level of reliability.
Electromagnetic fields can interfere with computers and even the human body, but the EMALS concept should avoid those problems, Bushway said. Modeling suggests exposure for crewmen on the flight deck would stay below internationally accepted safety levels and the catapult's generated field would only extend about 6 inches from the deck, well away from a plane's sensitive avionics.
Both contractors are building full-scale models that are one-half the length needed for carrier launches, Bushway said. The systems should arrive at the Navy's Lakehurst, N.J., testing center early this fall for assembly, with evaluations scheduled for next summer. Although he declined to name specific dates, Kopacz said Bushway's timeline is accurate, and General Atomics currently is preparing its test area at Lakehurst.
目前就 知道这点 有用的技术数据 [em13]
http://cache.baidu.com/c?word=%B ... a=49&user=baidu
希望有点帮助
希望有点帮助
赶紧研究,希望楼主能成为中国航母电磁弹射器的中坚技术力量.
这玩艺在哪个国家都是机密级的！！！！！！！！
自力更生才是王道,别指望谁帮我们
原帖由 wenwutan 于 2006-8-30 11:18 发表
赶紧研究,希望楼主能成为中国航母电磁弹射器的中坚技术力量.
先谢谢 轩辕明 的热心帮助。 祝好！
再 谢谢上面朋友的 鼓励哈 惭愧的很啊