SLS - space launch system (3-я попытка)

Автор Salo, 16.02.2012 10:25:55

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tnt22

ЦитироватьChris B - NSF‏ @NASASpaceflight 8 мин. назад

FEATURE ARTICLE:
Shuttle veteran RS-25 engines ready for SLS Core Stage installation ahead of Artemis-1 -

https://www.nasaspaceflight.com/2019/07/shuttle-rs-25-ready-sls-core-installation-artemis-1/ ...

A 5,000 word feature over two pages on this major milestone for SLS by Philip Sloss.





tnt22

ЦитироватьChris B - NSF‏ @NASASpaceflight 2 ч. назад

FEATURE ARTICLE:
Waiting for Artemis 1 schedule update, official decision on SLS Green Run -

https://www.nasaspaceflight.com/2019/07/waiting-artemis-1-schedule-decision-sls-green-run/ ...

By Philip Sloss.

Lead Render by Mack Crawford (@brickmack) for NSF/L2


tnt22

Цитировать3, 2, 1... Lift-Off of the Artemis 1 Mission to the Moon

NASA's Marshall Space Flight Center

Премьера состоялась 118 минут назад

Hear the countdown and see how NASA's Space Launch System (SLS), the world's most powerful rocket, will send the Orion spacecraft to the Moon on the Artemis 1 Mission. This video takes you through the pre-launch sequence at NASA's Kennedy Space Center in Florida and through all the flight operations as SLS launches Orion and sends it on to lunar orbit.
https://www.youtube.com/watch?v=7VvozsSG23whttps://www.youtube.com/watch?v=7VvozsSG23w (2:52)

tnt22

ЦитироватьNASA Conducts Successful Water Flow Test with Mobile Launcher

NASAKennedy

Опубликовано: 9 июл. 2019 г.

A successful water flow test with the mobile launcher at Kennedy Space Center's Pad 39B on July 2, 2019, put NASA one step closer to returning astronauts to the Moon by 2024, with the goal of sending humans to Mars. It was the first of nine tests to verify the sound suppression system is ready for launch of NASA's Space Launch System for the first Artemis mission.

Approximately 450,000 gallons of water was released from an elevated water tank and distributed through large diameter piping and valves to water nozzles located in the Pad B flame deflector, the mobile launcher flame hole and on the launcher's blast deck in just 45 seconds. That's enough water to fill 45 residential swimming pools! The system reached a peak flow rate of 1.1 million gallons per minute.
https://www.youtube.com/watch?v=zFve9BrKj7khttps://www.youtube.com/watch?v=zFve9BrKj7k (1:03)

tnt22

https://www.nasa.gov/exploration/systems/sls/nasa-sls-rocket-testing-ensures-astronaut-safety-mission-success.html
ЦитироватьJuly 9, 2019

NASA SLS Rocket Testing Ensures Astronaut Safety, Mission Success

As the world reflects on the 50th anniversary of the Apollo missions, NASA is looking forward to its next giant leaps. One way NASA ensures the safety of astronauts and the success of the Artemis missions to the Moon in preparation for future missions to Mars is by testing the Space Launch System (SLS) rocket structures.

With the recent delivery of the last structural test article, the liquid oxygen tank, to NASA's Marshall Space Flight Center in Huntsville, Alabama, and the start of testing in June for the largest structural test article — the 149-foot-tall liquid hydrogen tank — NASA is more than halfway through SLS structural testing.


The fourth and final structural test article for NASA's Space Launch System (SLS) core stage was unloaded fr om NASA's barge Pegasus at NASA's Marshall Space Flight Center in Huntsville, Alabama, Tuesday, July 9, 2019. The nearly 70-foot-long liquid oxygen (LOX) tank structural test article was manufactured at NASA's Michoud Assembly Facility in New Orleans and is structurally identical to the flight version. Next, crews will load it into a test stand at Marshall for critical testing. The liquid oxygen tank is one of two propellant tanks in the rocket's core stage that will produce more than 2 million pounds of thrust to help launch Artemis 1, the first flight of NASA's Orion spacecraft and SLS, to the Moon.
Credits: NASA/Fred Deaton

"This is a historic moment for the Marshall team as well as a significant milestone for the Artemis program," said SLS program manager John Honeycutt. "We are more than halfway through the largest test campaign at Marshall since articles from NASA's Space Shuttle Program were tested here. With the delivery of the liquid hydrogen tank test article, we're entering the final stage of Space Launch System structural testing."
Спойлер
SLS, the agency's first rocket built to send humans to deep space since the Saturn V, will have the power to take astronauts forward to the Moon and ultimately to Mars. Testing the new, increasingly complex pieces of hardware for the first flight of SLS and NASA's Orion spacecraft is critical to the success not only of the first mission but to future missions, especially for the core stage that is used on all configurations of the rocket.

Marshall has tested major components of the core stage, upper stage and payload structures for SLS to determine they will be able to withstand the forces and conditions they will ultimately face during launch and flight. To date, Marshall test engineers have completed testing on the whole upper part of the rocket, which includes the interim cryogenic propulsion stage that will give Orion the final boost to the Moon, and two of the four core stage pieces being tested: the engine section that connects to the four RS-25 engines and the intertank, the piece of the core stage that feels the most force during launch and solid rocket booster separation.

"Here at Marshall we're able to see firsthand how unique each of the different core stage components are from one another," said Matthew Cash, lead structural test engineer for the intertank and liquid oxygen tank structural testing. "More than 11 million pounds of force was applied to the intertank. That's the most of any SLS test element."

The Marshall team completed testing on the intertank in June, which included tests to see just how much force the intertank could stand, and then began testing the liquid hydrogen tank test article. During testing, dozens of hydraulic cylinders at Marshall's Test Stand 4693 push and pull on the giant tank to mimic the same stresses and forces it will endure during liftoff and flight.

Engineers are preparing the last structural test article, the liquid oxygen tank, to begin testing to start this fall. All test articles, including the liquid hydrogen and the liquid oxygen tanks, are structurally identical to their flight versions. The liquid hydrogen tank test article is bolted to a huge 80,000-pound steel ring on the test stand, wh ere it is suspended within the test stand with the loads applied at the base. Thirty-eight hydraulic cylinders are then calibrated and positioned all along the tank to apply millions of pounds of crippling force from all sides, and engineers measure and record the effects of the launch and flight forces. Meanwhile, the test article is filled with cryogenic fluid to simulate fuel and propellants used during flight.

"It will take about four months to complete each of the test scenarios," said Mike Nichols, the test conductor for the liquid hydrogen tank tests "Engineers carefully monitor the testing and data from stations several miles away, noting how the tank responds to the varying pressures and mechanical loading through a series of sensors attached to the tank."

The rocket's massive core stage is made up of five major components: the engine section, liquid hydrogen tank, intertank, liquid oxygen tank and the forward skirt. Together, these five parts make up the "core" of the rocket, and all the qualification testing will verify the components of the core stage are ready for Artemis 1.  

The Space Launch System is the most powerful rocket ever built by NASA. It's designed to safely send humans to the Moon — to stay — so that a new era of deep space exploration is possible. Testing ensures the success, not only of the initial flights, but also those SLS flights that will carry American astronauts to the Moon and ultimately to Mars.
[свернуть]
Last Updated: July 10, 2019
Editor: Lee Mohon

Чебурашка

Установили static test article кислородного бака на стенд.
Последний неиспытанный элемент. https://twitter.com/BoeingSpace/status/1150767028673949696

tnt22

ЦитироватьWatch as Crews Load Final SLS Test Article into Marshall Test Stand

 NASA's Marshall Space Flight Center

Опубликовано: 18 июл. 2019 г.

This video shows how crews lifted the liquid oxygen (LOX) tank structural test article for NASA's Space Launch System (SLS) rocket into Test Stand 4697 on July 10, 2019, at NASA's Marshall Space Center in Huntsville, Alabama. Engineers fr om Marshall's Center Operations team moved the test article from NASA's Pegasus barge on July 9. The barge delivered the test article from the Michoud Assembly Facility in New Orleans, wh ere it was manufactured. The test article is structurally identical to the flight version of the propellant tank, which will hold 196,000 gallons cryogenic liquid oxygen. Hydraulic cylinders within the test stand will push and pull the tank, subjecting it to the same stresses and loads it will face during liftoff and flight, to certify it fit for flight. The tank is one of two propellant tanks in the SLS core stage that will help power the rocket and NASA's Orion spacecraft to the Moon on the Artemis missions. Video Credit: NASA/Tyler Martin
https://www.youtube.com/watch?v=Co6QCMP1Ykghttps://www.youtube.com/watch?v=Co6QCMP1Ykg (0:20)

tnt22

https://ria.ru/20190721/1556730329.html
ЦитироватьСША завершили работу над космическим кораблем "Орион"
00:22

ВАШИНГТОН, 21 июл - РИА Новости. США завершили работу транспортным космическим кораблем многоразового использования "Орион" и намерены направить его к полету вокруг Луны, говорится в сообщении НАСА.
Цитировать"Вице-президент США Майк Пенс... объявил о том, что капсула для экипажа "Орион" готова к первой лунной миссии "Артемида", - говорится в сообщении.
"Артемида-1" запустит космический корабль НАСА "Орион" и ракету Space Launch System вокруг Луны, чтобы испытать систему и подготовить высадку первой женщины и следующего мужчины на Луне через пять лет, а также будущие миссии к Марсу", - заявили в НАСА.

"Создание корабля "Орион" для экипажа миссии "Артемида-1" завершено, и он готов начать подготовку к историческому первому полету", - сказал Пенс.

НАСА уточняет, что сборка первого "Ориона" была недавно завершена. Также готов и европейский сервисный модуль - основной компонент мощности системы, который разработало Европейское космическое агентство, его доставили в США в ноябре 2018 года для окончательной сборки.

Теплозащита оболочки корабля будет завершена в ближайшее время, а в сентябре его перевезут в Огайо, где проведут окончательные испытания. Когда корабль будет готов к полету, НАСА не сообщает.

США в эти дни отмечают 50-летие первой высадки американских астронавтов на Луну.

triage

Цитироватьtnt22 написал:
Теплозащита оболочки корабля будет завершена в ближайшее время, а в сентябре его перевезут в Огайо, где проведут окончательные испытания. Когда корабль будет готов к полету, НАСА не сообщает.
Значит не завершено.
Цитировать"Создание корабля "Орион" для экипажа миссии "Артемида-1" завершено, и он готов начать подготовку к историческому первому полету", - сказал Пенс.
Как и нету экипажа в этом полете

Чебурашка

В январе 2020 должен будет доставлен на космодром для окончательной подготовки к пуску. Пока по графику так.

Not

Цитироватьpnetmon написал:
 
Цитировать"Создание корабля "Орион" для экипажа миссии "Артемида-1" завершено, и он готов начать подготовку к историческому первому полету", - сказал Пенс.
Как и нету экипажа в этом полете
А надо? За что вы так не любите астронавтов? ;)

tnt22

Цитировать NASA_SLS‏ Подлинная учетная запись @NASA_SLS 8 мин. назад
We're renaming today What a View Wednesday! These drone images were captured as teams at @NASA_Marshall transported the liquid oxygen tank test article, the final test article for the rocket, from NASA's Pegasus barge to the test stand. LEARN MORE >> http://go.nasa.gov/2ZXbvf9




Чебурашка

От она какая в сборе.
В августе должны начать прикручивать двигатели.


Чебурашка

Решили окончательно = прожиг на полную длительность будет
https://www.nasa.gov/exploration/systems/sls/green-run-test-paves-way-for-nasa-moon-missions.html

tnt22

#2054
https://www.nasa.gov/exploration/systems/sls/green-run-test-paves-way-for-nasa-moon-missions.html
ЦитироватьJuly 25, 2019

"Green Run" Test Will Pave the Way for Successful NASA Moon Missions

NASA Administrator Jim Bridenstine announced July 25 the agency will conduct an "Green Run" engine test for the Space Launch System rocket ahead of the upcoming Artemis 1 lunar mission.


This is how the Green Run will work:


The first eight minutes of every Artemis mission with NASA's Space Launch System (SLS) rocket will begin with core stage and solid rocket boosters producing 8.8 million pounds of thrust to launch the agency's Orion spacecraft to the Moon. NASA will test the rocket's 212-foot tall core stage- the tallest rocket stage the agency has ever built- with a "Green Run" test on Earth before launch day to help ensure mission success and pave the way for future Artemis missions carrying crew to the Moon. Missions at the Moon will be a stepping stone to prepare for human exploration of Mars.


During the Green Run testing, engineers will install the core stage that will send Orion to the Moon in the B-2 Test Stand at NASA's Stennis Space Center near Bay St. Louis, Mississippi for a series of tests that will build like a crescendo over several months. The term "green" refers to the new hardware that will work together to power the stage, and "run" refers to operating all the components together simultaneously for the first time. Many aspects will be carried out for the first time, such as fueling and pressurizing the stage, and the test series culminates with firing up all four RS-25 engines to demonstrate that the engines, tanks, fuel lines, valves, pressurization system, and software can all perform together just as they will on launch day.


"The SLS core stage is an engineering feat that includes not only the largest rocket propellant tanks ever built but also sophisticated avionics and main propulsion systems," said Lisa Bates, SLS deputy stages manager. "While the rocket is designed to evolve over time for different mission objectives, the core stage design will remain basically the same. The Green Run acceptance test gives NASA the confidence needed to know the new core stage will perform again and again as it is intended."


The SLS core stage includes state-of-the-art avionics, miles of cables and propulsion systems and two huge liquid propellant tanks that collectively hold 733,000 gallons of liquid oxygen and liquid hydrogen to power the four RS-25 engines. Together, they will produce more than 2 million pounds of thrust to help send Artemis 1 beyond Earth's orbit to the Moon.


The test program for the core stage at Stennis will begin with installing the stage into the test stand. Then, engineers will turn the components on one by one through a series of initial tests and functional checks designed to identify any issues. Those tests and checks will culminate in an eight-minute-long test fire, mimicking the full duration of the stage's first flight with ignition, ascent and engine shutdown. The results of this test also will provide important data that will confirm how the system reacts as the fuel is depleted from the propellant tanks.


"With Green Run, we verify each individual component operates well within the core stage system," said Bates. "It's more than testing. It's the first time the stage will come to life and be fully operational from the avionics in the top of the core stage to the engines at the bottom."


The test series is a collaborative effort between a number of NASA field centers, programs and contractors. The entire stage was built and manufactured at NASA's Michoud Assembly Facility in New Orleans. The structural test articles, also built at Michoud, were shipped to NASA's Marshall Space Flight Center in Huntsville, Alabama, for structural testing. The work done by Marshall's test teams certifies the structural integrity of the rocket's core stage, while Green Run shows that the integrated stage operates correctly. The Stennis teams renovated the historic B-2 Test Stand used to test stages for multiple programs including the Saturn V and the space shuttle propulsion system in the 1970s.


"Green Run is a historic moment for NASA and Stennis for a number of reasons," said Dr. Richard Gilbrech, Director, Stennis Space Center. "For the first time in NASA's history, a launch vehicle will use flight hardware for its first test, and the Stennis test stands will once again test the core stage for Moon missions."


Historically, other NASA rockets built to carry astronauts have used main propulsion test articles to test the integrated engines and main propulsion system. The SLS program is performing the stage testing with flight hardware. Once the validation of the stage is complete, the entire stage will be checked out, refurbished as needed, and then shipped to NASA's Kennedy Space Center in Florida for the Artemis 1 launch. The next time the core stage engines roar to life will be on the launchpad at Kennedy.


NASA is working to land the first woman and next man on the Moon by 2024. SLS and Orion, along with the Gateway in orbit around the Moon, are NASA's backbone for deep space exploration. SLS is the only rocket that can send Orion, astronauts and supplies to the Moon on a single mission.

Last Updated: July 25, 2019
Editor: Jennifer Harbaugh

tnt22

Цитировать Boeing Space‏ Подлинная учетная запись @BoeingSpace 34 мин. назад
Our Michoud team is welding the last element of the second @NASA_SLS core stage. It's built to power the crewed Artemis-2 Moon mission.



https://video.twimg.com/tweet_video/EA6hErBX4AodBkM.mp4

Чебурашка

#2056

tnt22

Цитировать Chris B - NSF‏ @NASASpaceflight 2 ч. назад
FEATURE ARTICLE:
Boeing assembling structures for NASA's second SLS Core Stage -

https://www.nasaspaceflight.com/2019/08/boeing-assembling-second-sls-core-stage/ ...

Philip Sloss with a 3,500 feature checking in on the progress being made on the SLS rocket being built for Artemis-2, the first crewed mission.




tnt22

https://blogs.nasa.gov/groundsystems/2019/08/15/rotation-processing-and-surge-facility-ready-for-artemis-1/
https://blogs.nasa.gov/kennedy/2019/08/15/rotation-processing-and-surge-facility-ready-for-artemis-1/
ЦитироватьRotation, Processing and Surge Facility Ready for Artemis 1

Linda Herridge
Posted Aug 15, 2019 at 2:05 pm


Technicians watch as a crane and special mechanism begin breakover, or flipping, of the mated Thrust Resistance Structure and the Guidance Control Assembly for the Orion Program's Ascent Abort-2 flight test during practice, or pathfinder activities, June 22, 2018, inside Exploration Ground Systems' Rotation, Processing and Surge Facility high at NASA's Kennedy Space Center in Florida. Many pathfinding tests were completed on the flight hardware in preparation for the flight test. Photo credit: NASA/Ben Smegelsky

The Rotation, Processing and Surge Facility (RPSF) at NASA's Kennedy Space Center in Florida will receive the solid rocket booster segments for final assembly of NASA's Space Launch System (SLS) rocket. The agency's Exploration Ground Systems (EGS) team successfully completed the system acceptance review and operational readiness review for the facility on July 25, 2019. This review evaluated the RPSF's readiness to receive, process, integrate and launch flight hardware for Artemis 1 and beyond.

"The RPSF is the first processing facility at Kennedy to reach operational readiness status, and our team is looking forward to the arrival of the flight hardware so we can get to work preparing for the Artemis 1 launch," said Mike Chappell, EGS associate program manager with lead contractor, Jacobs.

When the booster segments arrive at Kennedy, the pieces are inspected before two 200-ton cranes are positioned to lift the segments from a horizontal position to a vertical position. The RPSF also will receive the booster aft skirt from the Booster Fabrication Facility. During processing, the aft segment is attached to the aft skirt and aft exit cone.

All of the SLS solid rocket components processed in the RPSF will be transported to the Vehicle Assembly Building for final assembly with the SLS core stage and Orion spacecraft on top of the mobile launcher for the agency's Artemis missions.

The RPSF is part of the infrastructure at Kennedy that will help NASA launch the Artemis missions and send the first woman and next man back to the Moon by 2024.

Чебурашка

#2059
Джими в прямом эфире на фоне очень большой и толстой ракеты из трёх букв.

https://twitter.com/JimBridenstine/status/1162033949591216128