Breakthrough in rocket engine technology research in China
The Xinhua News Agency reported on March 2, heavy launch vehicle development in China has officially launched early key technology research, programmes to deepen argues that current rocket technology research has achieved a breakthrough.
"Rocket carrying capacity-how much, how big is the space of the stage. "The Chinese national people's Congress, China Aerospace Science and Technology Corporation, the six institutes said tanyonghua, the Director of the CST, the current, space power restart heavy launch vehicle development program in the world, Europe, Japan and India are racing to promote the new launch vehicle research. Meanwhile, China Aerospace also developed their own heavy launch vehicle.
China space technology group a hospital General Department director designer Qin Xudong said, China heavy rocket early key technology research, and programme deepening argument work Yu June 2016 official reply project, main of research content for "General three big": General that heavy rocket of General technology and programme optimization; three big that 10 meters level big diameter arrows body structure of design, and manufacturing and test, 480 tons big thrust of liquid oxygen kerosene engine, 220 tons big thrust of hydrogen oxygen engine.
At present, two major thrust research is progressing well. Tanyonghua said that the 480 tons of liquid oxygen-kerosene engines has completed the first generator turbine pump test, met its intended purpose, engine systems and components are validated by testing the feasibility of marked 480 tonnes of liquid oxygen-kerosene engine development key technology research breakthroughs. And a 220-ton high performance hydrogen-oxygen rocket engine has completed a number of programme components detail design, development testing of components.
National Space Agency Deputy Director Wu Yanhua was introduced, China heavy launch vehicle to be named long Nineth plan achieved its maiden flight at about 2030.
Qin Xudong said that compared to a diameter of 5 meters of the larger rocket long March fifth, heavy carrier rocket long March of the Nineth development more difficult, more demanding.
"Tin can to a certain extent, a lot of things become more complex, such as conventional modal test, before long fifth is suspended the rocket, but the rocket won't be hanging up, it is too big, this is what we have to tackle the content. "Qin Xudong said.
Tanyonghua introduces long-Nineth heavy launch vehicle design thrust of more than 3000 tons, near-Earth orbits carrying capacity of 100 tons or more, the earth-moon transfer orbit carrying capacity of 50 tons or above, and for future manned lunar and Mars exploration and further demand for deep space exploration. If the flight is successful, capacity is expected to become the world's most powerful rocket.
(Editors: Liu Cheng UN649)
2017-03-02 22:58:02
Surging news
中国重型火箭发动机技术攻关取得突破性进展
新华社3月2日报道，中国重型运载火箭研制工作已正式启动先期关键技术攻关、方案深化论证，目前火箭发动机技术攻关已取得突破性进展。
“火箭的运载能力有多大，航天的舞台就有多大。”中国人大代表、中国航天科技集团公司六院科技委主任谭永华说，当前，世界航天强国纷纷重启重型运载火箭研制计划，欧洲、日本、印度竞相推进新型大运载火箭研究论证。与此同时，中国航天人也加紧研制自己的重型运载火箭。
中国航天科技集团公司一院总体部主任设计师秦旭东说，中国重型火箭先期关键技术攻关、方案深化论证工作于2016年6月正式批复立项，主要的攻关内容为“一总三大”：一总即重型火箭的总体技术和方案优化；三大即10米级大直径箭体结构的设计、制造和试验，480吨大推力的液氧煤油发动机，220吨大推力的氢氧发动机。
目前，两种大推力发动机的攻关进展顺利。谭永华说，480吨级液氧煤油发动机已经完成了首次发生器－涡轮泵联试，试验达到了预期目的，通过试验验证了发动机系统和组件方案的可行性，标志着480吨液氧煤油发动机研制关键技术攻关取得突破性进展。而220吨级高性能氢氧发动机也已完成了多个组件方案详细设计，进行了组件的研制试验工作。
此前国家航天局副局长吴艳华曾介绍，中国重型运载火箭拟命名长征九号，计划在2030年左右实现首飞。
秦旭东说，相比直径5米的大火箭长征五号，重型运载火箭长征九号的研制难度更大，要求更高。
“火箭大到一定程度后，很多事情变得复杂起来，比如做常规的模态试验，以前长征五号是把火箭悬吊起来做的，但重型火箭就没法吊起来，它太大了，这就是我们要攻关的内容。”秦旭东说。
谭永华介绍，长征九号重型运载火箭方案设计的推力超过3000吨，近地轨道运载能力达100吨以上，地月转移轨道运载能力50吨以上，可满足未来载人登月、火星探测和更远的深空探测需求。如果首飞成功，有望成为全世界运载能力最大的火箭。
(责任编辑：刘盛钱 UN649)
2017-03-02 22:58:02
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