Orion

[Salo]

https://www.nasa.gov/sites/default/files/atoms/files/nov_29_nac_v03-1.pdf

[Salo]

https://www.nasa.gov/sites/default/files/atoms/files/heo_status_report.revpptx_0.pdf

[tnt22]

https://orionesm.airbusdefenceandspace.com/blog/propulsion-drive-electronic-ready-for-orion-esm/

Propulsion Drive Electronic ready for Orion ESM

21/November 2017

As the Orion Service Module undergoes assembly and test at Airbus in Bremen more and more subsystems are completed and ready for integration.



Propulsion is one of the key functionalities of Orion's service module. 33 engines will ensure Orion's safe travel to the moon and back to earth. To operate this complex propulsion system smoothly the "Propulsion Drive Electronics" - short PDE - plays a vital role.

Спойлер

It has been designed, developed and built by the Avionics Engineering and Design department of Airbus DS in Bremen. Project manager Felix Rettig was extremely happy about this delivery.

"Our team worked so hard throughout the past years and now it is a great moment to see our electronics boxes ready for integration in a spaceship that will travel to the moon. A very big thank you goes to the whole team."

"The PDE is a central element of the propulsion system", explains Felix. "The avionics boxes precisely control all 33 thrusters and acquire measurement data for more than one hundred pressure and temperature sensor signals."

Orion ESM chief engineer Matthias Gronowski was delighted to see the delivery as well: "It is great to see more and more parts coming into our clean room for assembly, integration and test. I would like to thank the electronic team for this remarkable success. I know this development was hard work but finally you made it and you delivered this important piece of hardware and software!"

Each Service Module will be equipped by two PDE boxes for required redundancy and failure tolerance. They will be connected to the Vehicle Management Controller located in the Orion crew capsule and form part of the whole propulsion system together with the engines, tanks, pipelines and sensors.

The PDE's software has been developed to the highest level of ESA and NASA standards, with the implementation of a Category A firmware to ensure extreme failure tolerance.

[свернуть]

[Чебурашка]

Оказывается на "критическом пути" лежит европейский агрегатный отсек для "Ориона".
Вот уж не думал, что так

[silentpom]

вообще-то он уже больше всех сроки подвигал

[Чебурашка]

Самый большой косяк,  из-за которого перенос больше чем на год, -  криво сваренный водородный бак. Из-за чего пришлось делать новый бак.
Ещё там что-то уронили.

[tnt22]

http://blogs.esa.int/orion/2017/12/04/european-service-module-structure/

Posted on 4 Dec 2017 by julien

European service module structure

In a series of blog posts based on images taken at the Thales Alenia Space facility in Turin, Italy, we will now have a look at part of Orion's structure.

Спойлер

Credits: NASA–Radislav Sinyak

This tank bulkhead made of aluminium forms the top platform of the second European Service Module – the one that will fly with astronauts. It is almost 5 metres in diameter.

These pictures show work on the top bulkhead that is located inside the Crew Module Adapter directly under the Crew Module Heat Shield of Orion's second exploration mission

The bulkhead is a key part of the primary structure providing structural rigidity to the Orion spacecraft much like the chassis of a car. It absorbs the vibrations and energy from launch.

The round holes in the bulkhead allow for tanks to poke through. The four larger holes are for tanks that each hold 2000 l of propellant while the four smaller holes are for three oxygen tanks, and one nitrogen tank.

In the middle of the structure is a square opening for cabling, and helium tanks, more on this part in another blog entry tomorrow...


Credits: NASA–Radislav Sinyak

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[tnt22]

http://blogs.esa.int/orion/2017/12/05/orions-european-service-module-wall-panels/

Posted on 5 Dec 2017 by julien

Orion's European Service Module "wall" panels


Credits: NASA–Radislav Sinyak

In a series of blog posts based on images taken at Thales Alenia Space building facility in Turin, Italy, we will have a look at the vertical panels that form part of Orion's European Service Module primary structure, these images show work on the second service module that will propel astronauts beyond the Moon and provide essentials such as water, air, electricity and power.

Спойлер

Credits: NASA–Radislav Sinyak

The black panels are prepared on a table before being installed into the Service Module vertically. They are made of a lightweight composite material known as carbon-fibre reinforced-plastic. The honeycomb structure provides rigidity while keeping weight down.


Credits: NASA–Radislav Sinyak

The large holes when installed keep the weight down even more but also allow the technicians and engineers access to the mass of meticulously laid cables to be installed – over 11 km in total! The silver circles are mounting points for equipment and cables. Most of these will be installed in Bremen, Germany, at the Airbus integration hall where the complete service module is assembled.

Inside the four panels two helium tanks will be installed that will be used to push propellant to Orion's engines during its mission.

Brackets for holding the tank bulkheads (discussed in this blog post) are already attached to the bottom bulkhead and ready for installing the top bulkhead. In the photo below the engineers are standing in the hole that allows room for the propellant tanks.

These images show the beginnings of the spacecraft structure that will send human beings further from Earth than ever before – we will keep you updated in more blog posts.


Credits: NASA–Radislav Sinyak

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[tnt22]

http://blogs.esa.int/orion/2017/12/06/orion-service-module-2-structure-complete/

Posted on 6 Dec 2017 by julien

Orion service module-2 structure complete


Credits: Thales Alenia Space

Wrapping up our blog entries on the frame of the second European Service module for Orion, these pictures show the completed internal structure for Flight Model-2. It will support up to four astronauts and send them further than any human being has ever been from Earth in a few years.

Спойлер

The pictures show the two circular tank bulkheads in place, bolted to the vertical panels. The top ring will attach to the Crew Module Adapter that connects the Orion capsule to the service module.
 

Credits: Thales Alenia Space

The pictures were taken at the Thales Alenia Space facility in Turin, Italy, in November 2017.
This structure can be seen as the chassis of the Orion spacecraft, providing structural rigidity while absorbing vibrations and energy from launch.

The holes are to save weight and accommodate future payloads. It will also hold all the other elements together such as the spacecraft's thrusters, water tanks, fuel tanks, gas tanks, electronics and wires.

The top bulkhead is thicker as it handles more loads. Orion's storage tanks are supported from the top bulkhead which distributes the forces from 9 tonnes of propellant between the European Service Module structure and NASA structures such as the Crew Module Adapter and the launcher fairing, while the lower platform "only" provides support to prevent the tanks from swinging.
 

Credits: Thales Alenia Space

[свернуть]

[tnt22]

Вышла ежемесячная брошюра

orion_monthly_newsletter_11-2017.pdf - 1.6 MB, 7 стр, 2017-12-07 21:32:57 UTC

[tnt22]

Chris B - NSF‏ @NASASpaceflight 24 мин назад

Orion Parachute Drop Test is sorta live now: Audio is struggling: https://www.facebook.com/NASAOrion/videos/vb.129562970446777/1491125310957196/?type=3&theater ...

[tnt22]

Chris B - NSF‏ @NASASpaceflight 14 мин. назад

"What are we hoping to see?" Butch Wilmore. "BIG ORANGE PARACHUTES!"


3 мин. назад

C-17's aft door wouldn't open. False start for this test. Going to lap around again.

[tnt22]

 

Chris B - NSF‏ @NASASpaceflight 6 мин. назад

Facebook's autodetection of the C-17 aft doors not opening...


2 мин. назад

Drop test Scrub! Not often you hear that! C-17 aft door still refusing to open.

Н-да, кис-кис заела...  

[triage]

https://spacepolicyonline.com/news/lightfoot-excited-about-implementing-new-space-policy-details-to-come-in-fy2019-budget/
By Marcia Smith | Posted: December 12, 2017 10:42 pm ET 
Acting NASA Administrator Robert Lightfoot expressed excitement today about implementing the new space policy announced by President Trump yesterday. 
....
Separately he said that NASA does not want to launch the Europa spacecraft on the first launch of the Space Launch System with its new Exploration Upper Stage.  The spacecraft, which will study Jupiter's moon Europa, would be too valuable to risk on that first flight.  He said launching a crew would be permissible because crewed missions have an abort capability, but not launches of robotic spacecraft.
....

Возможно первый запуск SLS с новой ступенью будет пилотируемый из-за наличия системы спасения экипажа, а то аппарат к Европе очень дорогой.

[tnt22]

NASA Nate‏ @NASA_Nerd 4 ч. назад

Orion parachute test being conducted right now with full open mains


4 ч. назад

Touchdown of Orion at the Yuma Proving Ground in Arizona

[tnt22]

Orion Spacecraft‏Подлинная учетная запись @NASA_Orion 2 ч. назад

Parachute test success! We're getting ready for missions with @NASA_Astronauts https://go.nasa.gov/2kyymKE 

https://www.nasa.gov/feature/orion-parachute-tests-prove-out-complex-system-for-human-deep-space-missions

Dec. 15, 2017

Orion Parachute Tests Prove Out Complex System for Human Deep Space Missions

When NASA's Orion spacecraft hurtles toward Earth's surface during its return from deep-space missions, the capsule's system of 11 parachutes will assemble itself in the air and slow the spacecraft from 300 mph to a relatively gentle 20 mph for splashdown in the Pacific Ocean in the span of about 10 minutes. As the astronauts inside descend toward the water on future missions, their lives will be hanging by a series of threads that have been thoroughly ruggedized, tested and validated to ensure the parachute-assisted end of Orion missions are a success.

Спойлер

Two pilot parachutes pull out two main parachutes of the Orion spacecraft during a test Dec. 15, 2017.
Credits: U.S. Army

Through a series of tests in the Arizona desert, the engineers refining Orion's parachutes have made the road to certifying them for flights with astronauts look easy, including a successful qualification test Dec. 13 that evaluated a failure case in which only two of the systems three orange and white main parachutes deploy after several other parachutes in the system used to slow and stabilize Orion endure high aerodynamic stresses. But behind the scenes, engineers are working hard to understand and perfect the system that must be able to work across a broad range of potential environmental conditions and bring the crew home.

While Orion's parachutes may look similar to those used during the Apollo-era to the untrained eye, engineers can't simply take that parachute system and scale it up to accommodate Orion's much larger size. Through testing and analysis, technicians have developed Orion's parachutes to be lighter, better understood and more capable than Apollo's. NASA has also been able to adjust the system as elements of the spacecraft, such as attachment points, have matured.


NASA is testing Orion's parachutes to qualify the system for missions with astronauts.
Credits: U.S. Army

"Through our testing, we've addressed some known failures that can happen in complex parachute systems to make the system more reliable," said Koki Machin, chief engineer for the system. "We built upon the strong foundation laid by Apollo engineers and figured out how to manage the stresses on the system during deployment more efficiently, decrease the mass of the parachutes by using high tech fabric materials rather than metal cables for the risers that attach the parachute to the spacecraft, and improve how we pack the parachute into Orion so they deploy more reliably."

Orion's parachute system is also incredibly complex. About 10 miles of Kevlar lines attach the spacecraft to the outer rim of nearly 12,000 square feet of parachute canopy material – over four times the average square footage of a house – and must not get tangled during deployment. In addition to the fabric parachutes themselves, there are cannon-like mortars that fire to release different parachutes. Embedded in several parachutes are fuses set to burn at specific times that ignite charges to push blades through bullet proof materials at precise moments, slowly unfurling the parachutes to continue the sequential phases of the deployment sequence. All of these elements must be developed to be reliable for the various angles, wind conditions and speeds in which Orion could land.

With the analysis capabilities that exist today and the historical data available, engineers have determined that approximately 20-25 tests, rather than the more than 100 performed during the Apollo era, will give them enough opportunities to find areas of weakness in Orion's parachute system and fix them. After the three remaining final tests next year, the system will be qualified for missions with astronauts.

"There are things we can model with computers and those we can't. We have to verify the latter through repeated system tests by dropping a test article out of a military aircraft from miles in altitude and pushing the parachutes to their various limits," said CJ Johnson, project manager for the parachute system. "Lots of subtle changes can affect parachute performance and the testing we do helps us account for the broad range of possible environments the parachutes will have to operate in."

Orion parachute engineers have also provided data and insight from the tests to NASA's Commercial Crew Program partners. NASA has matured computer modeling of how the system works in various scenarios and helped partner companies understand certain elements of parachute systems, such as seams and joints, for example. In some cases, NASA's work has provided enough information for the partners to reduce the need for some developmental parachute tests.

"Orion's parachute system is an extremely lightweight, delicate collection of pieces that absolutely must act together simultaneously or it will fail," said Machin. "It alone, among all the equipment on the crew module, must assemble itself in mid-air at a variety of possible velocities and orientations."

Parachute testing is just one part of the vast expanse of work being performed across the country that enable humans to venture farther into space than ever before.

[свернуть]

Last Updated: Dec. 16, 2017
Editor: Mark Garcia

[triage]

pnetmon пишет:

https://spacepolicyonline.com/news/lightfoot-excited-about-implementing-new-space-policy-details-to-come-in-fy2019-budget/
By Marcia Smith | Posted: December 12, 2017 10:42 pm ET
Acting NASA Administrator Robert Lightfoot expressed excitement today about implementing the new space policy announced by President Trump yesterday.
....
Separately he said that NASA does not want to launch the Europa spacecraft on the first launch of the Space Launch System with its new Exploration Upper Stage. The spacecraft, which will study Jupiter's moon Europa, would be too valuable to risk on that first flight. He said launching a crew would be permissible because crewed missions have an abort capability, but not launches of robotic spacecraft.
....

Возможно первый запуск SLS с новой ступенью будет пилотируемый из-за наличия системы спасения экипажа, а то аппарат к Европе очень дорогой.

Вот только непонятно, разве система спасения не отделяется намного ранее чем заканчивает работу новая ступень.

[Дем]

Вероятно считают что авария на поздних этапах маловероятна.

[triage]

Если смотреть видео 2017 года EM-1
 
на 2:55 САС отстреливается еще на этапе работы RS-25 еще до отделения от первой ступени.

Хотя тут, видео 2016 года
 
САС отстреливается после отделения от первой ступени, сразу или после включения двигателей второй.

Видео 2013 года
 
после отделения, до запуска двигателей второй

[tnt22]

Orion Spacecraft Parachutes Test, 15 December 2017

SciNews

Опубликовано: 15 дек. 2017 г.

NASA successfully evaluated a failure case of Orion's parachute system in which only two of the systems three orange and white main parachutes deploy after several other parachutes in the system used to slow and stabilize Orion endure high aerodynamic stresses. The test took place on 15 December 2017, at the U.S. Army Proving Ground in Yuma, Arizona. A mock capsule was dropped from a C-17 aircraft at 35,000 feet in altitude to enable the right conditions for the test. It was the fifth of eight tests to qualify Orion's parachute system for flights with astronauts beginning with Exploration Mission-2.
Credit: NASA

(4:36)