Flacon 9成功进行首次5发动机并联试车

来源:百度文库 编辑:超级军网 时间:2024/05/04 00:07:54






McGregor TX – Space Exploration Technologies Corp. (SpaceX) conducted the first five-engine firing of its Falcon 9 medium to heavy lift rocket at its Texas Test Facility outside McGregor on Thursday, May 29. At full power the engines generated almost half a million pounds of force, and consumed 1,750 lbs of fuel and liquid oxygen per second. This five engine test again sets the record as the most powerful test yet on the towering 235-foot tall test stand.

The test of the five Merlin 1C engines, arranged in a cross pattern like the Saturn V moon rocket, is the last step before firing the full complement of nine engines, scheduled for this summer. With all engines operating, the Falcon 9 generates over one million pounds of thrust in vacuum - four times the maximum thrust of a 747 aircraft.

“This is the first time that we’ve added more than one engine at a time, and all phases of integration and testing went smoothly,” said Tom Mueller, Vice President of Propulsion for SpaceX. “As with previous tests, we saw no unexpected interactions between the engines, and are on schedule for adding four more engines.”

The first Falcon 9 will arrive at the SpaceX launch site at Cape Canaveral by the end of 2008. The next flight of SpaceX’s smaller Falcon 1 rocket is scheduled for late June or July of 2008.





McGregor TX – Space Exploration Technologies Corp. (SpaceX) conducted the first five-engine firing of its Falcon 9 medium to heavy lift rocket at its Texas Test Facility outside McGregor on Thursday, May 29. At full power the engines generated almost half a million pounds of force, and consumed 1,750 lbs of fuel and liquid oxygen per second. This five engine test again sets the record as the most powerful test yet on the towering 235-foot tall test stand.

The test of the five Merlin 1C engines, arranged in a cross pattern like the Saturn V moon rocket, is the last step before firing the full complement of nine engines, scheduled for this summer. With all engines operating, the Falcon 9 generates over one million pounds of thrust in vacuum - four times the maximum thrust of a 747 aircraft.

“This is the first time that we’ve added more than one engine at a time, and all phases of integration and testing went smoothly,” said Tom Mueller, Vice President of Propulsion for SpaceX. “As with previous tests, we saw no unexpected interactions between the engines, and are on schedule for adding four more engines.”

The first Falcon 9 will arrive at the SpaceX launch site at Cape Canaveral by the end of 2008. The next flight of SpaceX’s smaller Falcon 1 rocket is scheduled for late June or July of 2008.
原帖由 dark_knight 于 2008-6-8 23:39 发表
The test of the five Merlin 1C engines, arranged in a cross pattern like the Saturn V moon rocket, is the last step before firing the full complement of nine engines, scheduled for this summer.


到试飞的时候,Falcon 9 第一级将会并联9台发动机。
如果是Falcon 9 Heavy的第一级, 则在标准的Falcon 9两侧再各捆绑一个Falcon 9第一级,一共27台“Merlin 1C”。
Falcon_9H.gif
这个是民间利用真正商业化运作降低传统意义上运载火箭发射成本的一次重要尝试。可以说是迄今为止最重要,走的最远的一次尝试。如果目标可以实现,意义非常重大

Falcon1的头两次试射都失败了。说明航天确实是一个不容易的领域。怎么样掌握成本和可靠性之间的平衡关系,是SpaceX面临的重大挑战之一。

它的CEO是Paypal的创始人之一。真是有钱呐
Falcon 9 第一级是用降落伞溅落海面回收的。
请教dark_knight和shh,可复用火箭用降落伞和缓冲气囊能不能着陆在沙漠地区?这会不会比溅落海面回收成本更低?
Falcon 9 Heavy 27台发动机如何保证其可靠性?
原帖由 monster_cd 于 2008-6-9 11:24 发表
Falcon 9 第一级是用降落伞溅落海面回收的。
请教dark_knight和shh,可复用火箭用降落伞和缓冲气囊能不能着陆在沙漠地区?这会不会比溅落海面回收成本更低?

你去过沙漠就知道了,那不是大一点的黄沙堆
用降落伞和气囊在陆地上着陆应该是可行的,我们曾经提出过的运载火箭1子级陆上回收方案就是如此,俄罗斯也有这样的方案。但是海上回收是唯一实际验证和应用过的,而且美国人也比较有经验了。

具体比较,没有详细资料,不好说。抱歉
原帖由 sd6632221 于 2008-6-9 11:55 发表
Falcon 9 Heavy 27台发动机如何保证其可靠性?


SpaceX认为,这恰恰是它可靠的地方。因为1,2台坏了,余下的仍可以保证任务完成。只要这个故障不是爆炸。
随着技术的进一步发展,许多以前的禁区现在都不是禁区了。过去我们拿N-1的33台发动机取笑,现在“猎鹰”最多是并联45台发动机了;以前我们取笑印度的火箭像铅笔一样细长,可现在的战神-1比铅笔还要细长。:D
]]
原帖由 monster_cd 于 2008-6-9 14:51 发表

“余下的”的发动机是不是每个都要增大推力弥补那“1,2台”损失的推力?那正常情况下,发动机推力是不是也要留出了一定的“富裕量”?SpaceX会不会就是用这种“减小”推力的方法避免爆炸?

电影《阿波罗13号》 ...


你指的是J-2吧,
你的问题提得很好唉~
原帖由 G6-52L 于 2008-6-9 13:59 发表
随着技术的进一步发展,许多以前的禁区现在都不是禁区了。过去我们拿N-1的33台发动机取笑,现在“猎鹰”最多是并联45台发动机了;以前我们取笑印度的火箭像铅笔一样细长,可现在的战神-1比铅笔还要细长。:D


Falcon再好,N-1也照样不是好东西:-)
]]
原帖由 G6-52L 于 2008-6-9 13:59 发表
随着技术的进一步发展,许多以前的禁区现在都不是禁区了。过去我们拿N-1的33台发动机取笑,现在“猎鹰”最多是并联45台发动机了;以前我们取笑印度的火箭像铅笔一样细长,可现在的战神-1比铅笔还要细长。:D

固体的,不在乎细长了。
原帖由 monster_cd 于 2008-6-9 14:51 发表

“余下的”的发动机是不是每个都要增大推力弥补那“1,2台”损失的推力?那正常情况下,发动机推力是不是也要留出了一定的“富裕量”?SpaceX会不会就是用这种“减小”推力的方法避免爆炸?

电影《阿波罗13号》 ...

剩余延时工作,已经是马力全开了,你还想怎么的??
关一台是不敢的,其实力矩不算大,一般还在可控范围内,2发熄火,赶紧放弃吧。
;P ;P ;P ;P
另外阿波罗绝对是一个工程史上的奇迹......
当时说句不好听的,很多人是抱着必死的准备的,结果死那3个还那么冤......
:lol :lol :lol :lol