China began its development portfolio powered aircraft: speed or up to 7 times the speed of sound _ | engines news

▌ Source: CCTV news, science and technology daily

China's "combination of powered aircraft" started to develop reusable, convenient and reliable aircraft has become a national aerospace industry most want to win the competition. United States space exploration companies (SpaceX) after completing the rockets recycling and reuse, Chinese Aerospace Science and Technology Corporation has announced that China's "combination of powered aircraft" development project has already started.

The future, the aircraft is able to let ordinary passengers like flying into space, it also meant that ordinary people into space costs and is expected to greatly reduce the threshold. In addition, the "combination of powered aircraft" new engine, speed is expected to reach more than 7 times or 10 times the speed of sound.

Ordinary people into space and threshold are expected to reduce the cost

Dynamic aircraft project of China Aerospace Science and Technology Corporation is developing combination, which means that ordinary people into space in the future costs and is expected to greatly reduce the threshold.

A research and development center of China Aerospace Science and Technology Corporation Vice President Research architect Yung Ho Chang described, the combination of power compared to the conventional rocket-powered, it is a new dynamic, broadly speaking, is grouped together different forms of power is called the combined power.

It is understood that the combination of powered aircraft on takeoff, using high performance in low speed flight conditions of aircraft turbine engine or air breathing rocket engines after reaching a certain speed, use Ramjet in high-speed flight within the atmosphere. Both of these engines can only be used within the atmosphere, and vehicle reaches near-space, you will need a rocket into space. Research staff, the combined power of the future aircraft can achieve a repeatable between heaven and Earth of space transport.

Reusable rockets are the key technology breakthroughs

Aerospace Science and technology group of six Dean tanyonghua said, integration of aviation and aerospace technology for aircraft, will be completely reusable using space transportation's long-term development goals.

Tanyonghua international technology research, said the rocket technology, reusable rocket conventional disposable rockets into the key technologies involved have a breakthrough.

While tanyonghua said the reusable rockets in China, a large number of technical reserves, the preliminary conditions of developing research. New liquid rocket engines for a new generation of launch vehicles must have ability to reuse.

"The combination of powered aircraft" in the future, or up to 10 times the speed of sound

Ramjet, according to people familiar with the matter said, success of the development of a new engine in China, has entered a practical stage.

Yung Ho Chang said, different from the rocket to carry large amounts of antioxidants, Ramjet can use oxygen as the oxidizer in the air, and its onboard fuel reacts and produces thrust, enabling travel light.

Reporters learned of Ramjet's research has been carried out for many years. Early speeds around Mach 3 times, and has successfully developed a new type of Ramjet at speeds up to Mach 4.5 times. Future products, speed is expected to reach more than 7 times or 10 times the speed of sound.

Application is expected by 2030

Compared with the currently serves as main space transport rocket, combination of powered aircraft have a number of features in the future. In addition to reusable, it no longer demanding site conditions, and using ordinary airports to achieve horizontal take-off and landing like a plane, which can reduce the cost of space activities, also lays the Foundation for realization of flight; traditional rockets "a bow no turning back", and cushioning combination of accelerating powered aircraft encountered problems can return, will further ensure the safety of manned space activities.

In addition, the rocket accelerated too fast, so that astronauts endure several times exceeding weight of load, the combination works through a variety of engines power aircraft, overload can be reduced to a range of ordinary people can afford and make passengers feel comfortable like a fly.

Yung Ho Chang, China plans to use master mix in the 3-5 dynamic vehicle-related key technologies, is expected to achieve sub-orbital at around 2030 and the Rails application.

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Amazing space flight artifacts

People yearn for flying into space, hit Star Trek through these years, movies such as the Mars rescue reflects the people longing for the space, space artifact in science fiction movies look? Perspective.

① tadisi ship

Mention brain hole wide open, have to mention the magic of tadisi ship, appeared in doctor who in the artifact, you can allow people to achieve time travel, it comes with the Chameleon system allows it to be integrated with the surrounding environment.

Second, the Hermes spacecraft

This is Hermes the Mars rescue fire, and from the spacecraft, it is perennial in stable operation of Earth and Mars orbits, all kinds of tasks to and from Mars for human beings to provide transport, transit stops, and other functions. Its power system is a plasma engine, although the thrust is small, but can make use of gravitational slingshots, and low thrust to maintain stability in the long run.

③ venture star

This is the avatar of the business of an asterisk, it is a round trip from Earth and Pandora's Star Trek spacecraft. Venture star power systems is the antimatter and fusion hybrid, it has a 1.6 km-long hull of 264 meters long huge reactors. In real life, space nuclear propulsion is the world's hot research field.

Producer//Li Zhe, Tang Yi editor Hou Zhenhai

Edit/Chen Wei

Responsible editor: Xiang Changming SN123

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中国开始研制组合动力飞行器:速度或达音速7倍|发动机_新闻资讯

　　▌本文来源：央视新闻、科技日报

　　中国“组合动力飞行器”开始研制可重复利用、便捷又可靠的飞行器已经成为各国航天领域最想拿下的竞争领域。在美国太空探索公司（SpaceX）完成火箭回收和重复利用后，中国航天科技集团近日对外宣布，中国“组合动力飞行器”项目已经开始着手研制。

　　未来，该飞行器能够让普通旅客像坐飞机一样进入太空，同时也意味着普通人进入太空的成本和门槛将有望大大降低。另外，“组合动力飞行器”采用新型冲压发动机，速度有望达到7倍甚至10倍音速以上。

　　普通人上太空的成本和门槛有望降低

　　中国航天科技集团公司正在研制组合动力飞行器项目，这意味着未来普通人上太空的成本和门槛将有望大大降低。

　　中国航天科技集团公司一院研发中心副总研究师张永介绍，组合动力和传统的火箭动力相比较而言，它是一种新型动力，从广义上来讲，就是把不同的动力形式组合到一起就叫组合动力。

　　据了解，组合动力飞行器在起飞时，使用在低速飞行条件下性能很高的航空涡轮发动机或吸气式火箭发动机；达到一定速度后，使用适应在大气层内高速飞行的冲压发动机。这两种发动机只能在大气层内使用，而飞行器到达临近空间，便需使用火箭发动机进入太空。一院科研人员介绍，未来的组合动力飞行器可以实现可重复的天地往返航天运输。

　　可重复使用火箭涉及的关键技术已经突破

　　航天科技集团六院院长谭永华曾表示，融合航空、航天动力技术的飞行器，将是航天运输实现完全可重复使用的长远发展目标。

　　谭永华在介绍国际相关技术研究现状时表示，火箭技术方面，把传统一次性火箭变为可多次使用火箭所涉及的关键技术大多已经突破。

　　同时谭永华透露，我国在可重复使用火箭方面已有大量技术储备，初步具备开展工程研究的条件。我国新一代运载火箭所用的新型液体火箭发动机已具备一定重复使用能力。

　　“组合动力飞行器”未来或达10倍音速

　　在冲压发动机方面，据知情人士透露，我国新型冲压发动机研制取得成功，已进入实际应用阶段。

　　张永说，与火箭要携带大量氧化剂不同，冲压发动机可以使用空气中的氧作为氧化剂，与自身携带的燃烧剂产生化学反应并产生推力，从而实现轻装上阵。

　　记者了解到，我国对冲压发动机的研究已开展多年。早期产品速度大约在3倍音速以下，而已经研制成功的新型冲压发动机速度可达4.5倍音速。未来的产品，速度有望达到7倍甚至10倍音速以上。

　　预计2030年实现应用

　　与目前担当航天运输主力的火箭相比，未来的组合动力飞行器有多项特点。除了可重复使用，它无需再苛求发射场条件，而能像飞机一样利用普通机场实现水平起降，既能降低航天活动成本，也为实现航班化奠定了基础；传统火箭“开弓没有回头箭”，而缓冲加速的组合动力飞行器遇到问题还能返回，将进一步保障载人航天活动的安全。

　　此外，火箭飞行时加速太快，会使航天员承受超过体重数倍的负荷，组合动力飞行器通过多种发动机配合工作，可以把过载降低到普通人也能承受的范围，让乘客感觉像坐飞机一样舒适。

　　张永表示，我国计划用3至5年时间掌握组合动力飞行器相关关键技术，预计在2030年左右实现亚轨道应用和入轨应用。

　　新闻多看点

　　NEWS MORE

　　神奇的太空飞行神器

　　飞向太空让人向往，这几年热映的《星际穿越》、《火星救援》等电影体现了人们对太空的向往，科幻电影中的太空飞行神器是什么模样？一起来看。

　　①塔迪斯飞船

　　提到脑洞大开，不得不提到神奇的塔迪斯飞船，这个出现在《神秘博士》里的神器，可以让人实现时空穿梭，它自带的变色龙系统可以让它同周围环境融为一体。

　　②赫尔墨斯号飞船

　　这是《火星救援》里的赫尔墨斯号地火往返飞船，它常年在地球与火星轨道上稳定运行，可以为人类往返火星的各类任务提供运输、中转停靠等功能。它的动力系统是等离子引擎，虽然推力小，但是可以借助引力弹弓以及长时间的小推力维持稳定运行。

　　③创业之星号

　　这是《阿凡达》里的创业之星号，它是一艘往返于地球和潘多拉星球之间的星际旅行飞船。创业之星的动力系统是反物质和核聚变的混合动力，在它长达1.6公里的舰体中拥有一个长达264米的巨大反应堆。而在现实生活中，核动力推进的确是世界各国航天领域研究的热点。

　　监制/唐怡 主编/李浙 侯振海

　　编辑/陈维

责任编辑：向昌明 SN123

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