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Looking back on the Top15 event of the 2017 NASA deep space exploration system

via:NASA中文爱好者团队     time:2018/2/4 8:01:58     readed:1352

Much of the construction of the SLS Structural Testing Station has been completed, NASA will test the liquid hydrogen fuel tank here to ensure that the fuel tank withstands the extreme conditions of launch and ascent. SLS liquid hydrogen, along with liquid oxygen fuel tanks, will provide 773,000 gallons (nearly 3 million liters) of super-cooled propellant for four Rs-25 engines and a total of 2 million pounds of thrust at the core stage.

Sunday, September 24, 2017 A 215-foot-tall SLS test station stands within the Marshall Space Flight Center in Huntsville, Alabama.

Credits: NASA / Bill Ingalls

RS-25 engine RS-25 engine before 2009 as part of the spacecraft power system. After 2009, the RS-25 engine was given a new mission as a motivation for the NASA SLS rocket, which will carry astronauts to explore asteroids and Mars. SLS rockets can carry 130 tons of objects into space, it is the history of the most powerful space rocket system.

2.NASA simulated Orion spacecraft launch situation

In a lab at the Johnson Space Center in Houston, NASA engineers modeled on astronauts wearing space suits - as NASA's most powerful SLS rocket with Orion spacecraft to deep space - fired The kind of tremors that come out of the process.

In a lab at NASA's Johnson Space Center in Houston, engineers modeled astronauts in space suits - as NASA's most powerful SLS rocket carried Orion spacecraft to deep space - The kind of chaos that is generated during the launch.

Credits: NASA / Rad Sinyak

Johnson Space Center is located 35 miles southeast of Houston, Texas Lake Clearwater, was built in 1962, an area of ​​656 hectares. Is the research and development base of the U.S. manned space shuttle and the manned space flight base and operational and control center. It is also the largest space research center affiliated with NASA and one of the major space centers participating in the International Space Station. The center, named after the late President Lyndon Johnson, was commissioned in 1961.

3. NASA Space Launch System (SLS) final working platform in the launch assembly building installed

At NASA's Kennedy Space Center (Florida) launch assembly building, the engineers completed the final workbench installation on 10 floors, each split into about two and a half, for a total of 20 parts, to connect NASA's SLS and Orion The spacecraft is enveloping it and testing can also be carried out in it, such as Orion's first unmanned flight test on a SLS rocket.

On January 12, 2017, at the launch assembly building at NASA's Kennedy Space Center in Florida, overhead overhead cranes hoisted the final work platform and lowered it north to accommodate High Bay Light 3.

Credits: NASA / Frank Michaux

4. The rainbow is present during the RS-25 engine test

In February 2017, NASA tested eight RS-25 engines on SLS rockets. Four of the liquid-fuel engines were ready for flight, and the four engines will fuel SLS's first mission, and engineers have begun engine testing for the second manned mission. SLS launch, four liquid fuel RS-25 engine will provide fuel, together with a pair of solid rocket propulsion ignition, a total of 2 million pounds thrust. The 10 engine parts needed to link a liquid-fuel engine with a solid rocket propulsion are currently in production and are being prepared for the first joint flight test. All the engines together, the total thrust will exceed 8 million pounds.

On February 22, 2017, at the Stanislas Space Center near Saint Louis, Mississippi, a rainbow appeared near the A-1 test rig when NASA engineers conducted their first 2017 test on the RS-25.

Credits: NASA / KSC Unmanned Aerial Systems Team

Formerly known as the National Space Technology Laboratory, the Stennis Space Center is now the main large engine test site for NASA, including the development and testing of the space shuttle's main engine.

5. A Florida Early Morning, Launch Assembly Building (VAB) stands in it

The rocket and spacecraft are processed and assembled at the launch assembly building (VAB) prior to deployment on the launch tower. At VAB, upgrading of the dockyard area is under way to adjust the height of the basin quay to fit the SLS rockets' core level, which is assembled by NASA's Michuid Parts Assembly Plant in New Orleans Arrived at the AVB by a dedicated barge, it will be integrated with other hardware to prepare for the first launch of the SLS.

One of Florida's typical early morning, Launch Assembly Building (VAB) (located within the NASA Kennedy Space Center) stands.

Credits: NASA / Bill White

6. Used to lift Orion to launch the navel cranes and rigging

NASA installed several connections on mobile launchers, called the launch navel, which would connect to the SLS core and dual solid rocket propulsion, the temporary cryogenic propulsion and the Orion spacecraft. They will play a role in supplying energy, communications, cooling and fuel.

A Long Exposure Mobile Launcher Image (Located at NASA Kennedy Space Center, FL)

Credits: NASA / Cory Huston

7. During the track test, a rainbow connects the VAB building in the distance with the crawler tractor

At the Kennedy Space Center (located in Florida), NASA's CT-2 tracks along the track to test the structural dynamics and load conditions of the recently upgraded track. The test was carried out to ensure that the track was well prepared for the first joint flight of the Orion spacecraft and SLS rockets.

At NASA's Kennedy Space Center (located in Florida), Crawler Tractor 2 (CT-2) is slowly moving down the track as it returns to the launch assembly building (as if in this background).

Credits: NASA / Leif Heimbold

8. SLS engine section test object loading Pegasus barge

The SLS engine section structural qualification test object passed the Pegasus Barge and arrived at the NASA Marshall Space Flight Center (Huntsville, Alabama) by the Mittal Assembly Plant (New Orleans). Test objects were tested for structural loads. The electronically controlled hydraulic cylinder pushes, pulls, twists and tows the test object with millions of pounds of force to ensure that the hardware can withstand the extreme conditions of launch and lift. The engine section will house four RS-25 engines, mounted at the bottom of the rocket's core stage and attached as two solid rocket booster attachments.

At NASA's Machu Picchu plant in New Orleans, Pegasus barge is loaded with an engine section structural qualification test article designed to test NASA's new rocket SLS design.

Credits: NASA / MSFC Michoud image: Jude Guidry

9. Spacesuit vacuum pressure test

At the NASA Johnson Space Center in Houston, technicians stress-test aerospace suits to test the enhancements that astronauts can make on spaceships to be worn on Orion spacecraft. During this test, the spacesuit would be linked to a life support system, which would then evacuate the air from an 11-foot hot vacuum chamber, simulating a condition similar to that in the space capsule and assessing the performance of the spacesuit.

At NASA's Johnson Space Center in Houston, engineers and technologists are testing spacesuits and astronauts will take deep space travel on Orion spacecraft in this spacesuit.

Credits: NASA / Rad Sinyak

10. Orion's arched door to escort the astronauts escape

In a reverberant acoustics test facility at NASC Glenn Research Center at Meixi Station (Sandakis, Ohio), engineers used a full-height, highly-specialized speaker to fully simulate the Orion spacecraft ' The sound and vibration we encounter. Among them, the arched panel (shown on the front of the figure) protects astronauts in the capsule against jarring noise and vigorous vibration during ascent and launch of the spacecraft.

In a reverberant acoustics test site at the NASA Glenn Research Center in Meixi, Sandakers, Ohio, engineers tested a key component of a Orion spacecraft.

Credits: NASA

11. "Orion" parachute for high pressure testing

In 2017, NASA successfully conducted three experiments in the Yuma Desert, Arizona, as part of a series of experiments aimed at keeping Orion's parachute system in compliance with astronaut requirements and ensuring the agency's safe return to Earth. Each experiment separately simulates what the astronaut might experience under various conditions. Engineers also tested the "Orion" launch escape system engine at a test site on the Cape of Utah.

On Sept. 13 NASA engineers tested the Orion parachute system at the U.S. army test site in the Yuma Desert as shown in the photo below: Three orange-and-white main parachutes with a spacecraft model over the state of Arizona Slow down.

Credits: NASA / Rad Sinyak

Yuma Desert Yuma desert, the desert of the Sonoran desert. Located south of the Gila River and east of the Colorado River, the southwestern tip of Arizona, USA, and the northwestern corner of Sonoran, Mexico.

12. Technical experts completed the final welding work in SLS liquid oxygen tank, SLS will usher in the first flight

The five main components of the SLS - the engine section, liquid hydrogen tank, internal tank, liquid oxygen tank and front skirt - have all been completed and are ready for additional assembly and testing. These parts will be linked together to form the core SLS rockets at the core level is the backbone of SLS rockets, 212 feet high. Of these, more than 700,000 gallons of propellant were stored in liquid and liquid oxygen tanks. NASA welded the thickest ever built to build the two largest components in the core structure and used self-reactive friction to agitate Solder joints.

As shown, technologists are completing the final welding job in the liquid oxygen tank to fill the hole left by robot welding while the first oxygen pressure test is still underway at the NASA Deep Space Rocket - SLS.

Credits: NASA / MSFC / MAF / Jude Guidry

13. SLS core-level Pathfinder arrives at NASA Mittal Assembly Plant

The SLS Core Pathfinder has arrived at the NASA Mittal Assembly Plant, where Pathfinder has a true core of 212 feet tall, both in size, shape and weight. To reduce the risk of first-time operations, NASA provides SLS with a unique space flight hardware that is using Pathfinder to test new transportation and handling equipment and procedures from the manufacturing site to the test site, as well as from the test site to the launch site .

On the early morning of September 27, 2017, the SLS core-level Pathfinder has arrived at the NASA Mittal Assembly Plant, where Pathfinder has a true core of 212 feet tall, both in size, shape and weight.

Credits: NASA / MSFC / MAF / Steven Seipel

14.SLS booster separation test carried out in the wind tunnel

NASA engineers conducted a series of wind tunnel tests using SLS models at the Arms Research Center (Silicon Valley, CA) and the Langley Research Center (Hampton, Virginia). Technologists use a special pink varnish to test the aerodynamics the rocket may experience during launch and ascent.

To understand the aerodynamic principle of a booster to separate the engine from ignition and to move the solid rocket booster away from the rocket core, engineers at NASA Langley Research Center are testing a 35-inch SLS model that operates on a 1105-ton Based on this, a unique pink paint evolved in a single planned wind tunnel.

Credits: Dave Bowman / NASA

15. Leave the spacecraft quickly

In the crew evacuation test in the Gulf of Mexico, the team evaluated each of the two modes of evacuation of crew members or aids separately. When the cabins fall into the sea, upside-down bags will be responsible for "knocking" Orion "over" if it is flipped upside down. At the NASA Johnson Space Center in Houston, the team also conducted a series of tests to assess how quickly those astronauts and ground crew involved in the final preparation stage before the launch of Orion's mission, if an emergency occurred prior to launch Leave the spacecraft.

July 10-14, waters off the coast of Galveston, Texas. A team of NASA and Defense researchers simulated a variety of scenarios to test the Orion's evacuation process.

Credits: NASA / Josh Valcarcel

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