论文部分内容阅读
用液体火箭发动机作为航天飞机助推器的设想虽然很早有人提出过,但被人们搁置了达20年之久.美国肮天局早期的结论认为液体火箭发动机不能承受海水浸渍.但自从“挑战者”号航天飞机固体助推器发生故障而导致灾难性事故之后,美国航天局又重新对液体助推器方案进行了考查,以了解这种方案能否对安全飞行有所改善,以及能否增加有效载荷.这段时间美国肮天局及其承包公司进行了论证,发现液体助推器有不少好处,例如一旦出现故障,实现中止飞行的可信度较高;可增加有效载荷,对低地球轨道
The idea of using a liquid rocket engine as a space shuttle booster has long been put on hold by people for more than 20 years and the early conclusion of the U.S. filing that liquid rocket engines can not withstand seawater impregnation has been a challenge since the " NASA reschedules the liquid booster program after a solid-propeller shuttle crash has led to a catastrophic accident to see if such a program can improve safe flight and whether it can Increase the payload. During this time the United States Bureau of Justice and its contracting companies demonstrated that liquid booster has many benefits, for example, in the event of failure, to achieve a higher suspend flight reliability; can increase the payload, Low Earth orbit