Roll-Out Solar Array Experiment (ROSA) Deploys on International Space Station
ฝัง
- เผยแพร่เมื่อ 18 มิ.ย. 2017
- The Roll-Out Solar Array (ROSA) was deployed from the end of the Canadarm2 robotic arm Sunday, June 18 outside the International Space Station. ROSA is an experiment to test a new type of solar array that rolls open in space like a party favor and is more compact than current rigid panel designs. The ROSA investigation tests deployment and retraction,characterizes changes when the Earth blocks the sun, vibration and other physical challenges to determine the array’s strength and durability. ROSA has the potential to replace solar arrays on future satellites, making them more compact and lighter weight. Satellite radio and television, weather forecasting, GPS and other services used on Earth would all benefit from high-performance solar arrays. The payload will remain deployed for seven days before retracting and will be stowed back inside the trunk of SpaceX’s Dragon cargo vehicle. Note: footage of deploy is sped up 300%.
NOTE: THERE IS NO AUDIO WITH THIS FOOTAGE
________________________________________
FOLLOW THE SPACE STATION!
Twitter: / space_station
Facebook: / iss
Instagram: / iss - วิทยาศาสตร์และเทคโนโลยี
![THE TOYS x NONT TANONT - ดอกไม้ที่รอฝน (spring) [Official MV]](http://i.ytimg.com/vi/pPa1d5cC8M4/mqdefault.jpg)
Can someone edit this and add the party blower sound?
This is so cool, I always love watching these and the HDEV along with NASA TV / media.
wow thats some really amazing engineering , i think the beams that support the solar panel are as amazing as the solar panel it self, really well done
anothercbrowner becoz they r space scientists...
That's amazing. It looks like the structural parts are rolled up carbon fiber that gets formed into a tube. I wonder how long one module is.
Thanks for pointing that out! I saw someone demonstrate that, but didn't understand how it was used in ROSA.
It does look like CF, but it was rolled out for storage and I assume it got "inflated" into a cylindrical tube for structural support? I wonder what's the actuator that extends it, or if it is really being inflated by gas (my poor guess). Inflating with gas just seem easy to go wrong.
It's sort of like a snap bracelet. It rolls out flat, and the long edges bend together to form a tube. The motor is at the base and just extends the structural parts.
I wondered at this intriguing deployment system and thought CF tubing with some clever internal support. Then I saw the woven aspect... Chinese finger puzzle, or sorts. I thought it could (perhaps) also be inflated with gas to make it more rigid.
I found out some more about ROSA.
Read this article: www.ndtv.com/world-news/nasa-to-test-cost-saving-flexible-solar-panels-on-international-space-station-1715067
And this pdf: www.dtic.mil/dtic/tr/fulltext/u2/a444956.pdf
The technology used is called RAPDAR, here are some more informations about it: www.nsti.org/Nanotech2009/abs.html?i=1497
This entire project is very impressive.
you guys rock!!
Very cool
What kind of efficiency does it offer? 7-8%?
Please correct me if I'm wrong, but I seem to recall the Hubble also deploying rolled-up solar panels in one of the STS repair missions. The CF struts weren't there, but there was a different deployment mechanism. Am I imagining this?
Squodgamullis If I recall correctly they've been unrolling solar panels for awhile now. But never with pneumatics. Only hydraulics, actuators, servos and mechanical hinges. Springs and the like. A much bigger array could be brought up in a much smaller, more simple package. It allows the weight of the payload to be more solar panel as opposed to its deployment mechanism.
This gives a new meaning to astroturfing.
I think this technology will be a game changer for in space power production.
I am wondering that ,how much energy ISS needs for supporting astro's life and all the experiments ?
75-90 kw. The panels produce a fair bit more to charge the batteries for when it's on the night side.
looks really good.
I hope they can read the data from. the low resolution cameras as well.
if this test works and we get a demonstration soon, we are a step further to building large solar wings or even sun sails.
I am really fascinated by the fact that it rolls out so straight in microgravity and isn't going all over the place.
MrVipitis pleass sabc mi
cool and fancy
😍 nice
Rosa is an amazing investigation and an important one have you seen the solar arrays on P6? they are almost a decade old and some of them are torn if a replacement can be sent up on a later Dragon flight using Rosa technology the old array could be retracted and a new Rosa array could be installed to replace it that'll also work with upcoming spacecraft that will launched by NASA and the military. the arrays are bulky and the deployment mast takes up a lot of room inside of the satellite and inside of the modules mooning the space needed for instruments. with Rosa we can pack up the solar arrays into a tight space and unfold them like a party streamer and they would retain their shape without getting torn. when you have mechanical systems like a deployment mast you run the risk of snagging a guidewire and tearing the array at the cells. with Rosa you get a fast deployment and none of the cells get torn and you will be having full power in about 90 seconds instead of 6 minutes with conventional arrays which have to be heated to melt the epoxy resin that makes the array sticky when it is folded up inside of the canister.
anyone know how much kwh that little solar panel can generate?
likely 30% efficiency times 1500 watts per square meter. The size is around 1 meter by 3 meters. So, I'd guess 1500 watts as a rough estimate. You could likely look up more accurate numbers for the amount of solar energy in orbit, panel efficiency, and size of the panel.
On the Avasva you can count on professional help with problems and technical support.
Does anyone has 3d model?
Hmm... is the fluttering merely annoying, or might it actually cause stresses with repeated extension/retractions? What would be the easiest way to dampen it, to make the fluttering die down faster without significantly increasing mass?
The fluttering is caused by the pool water this is filmed in.
Don't listen to joe, he's a dumbass. The fluttering is caused by the motor unraveling the solar panel
@@robos3809 Sick burn, bro!
And why does it sway like the wind?
Either from, internal vibrations travelling from within the ISS or the that only being about 200 miles above the Earth there isn't a complete vacuum outside of the ISS, There are still fragments of atmosphere even that far up, So think off all the sparse atomic oxygen atoms hitting those arrays, every action has an opposite and equal reaction.
If you put two sided (concave/protruding) magnetic grooves on the edges of the roll-out solar panel, you shouldn't have that contracting issue . This will prevent it from cone flopping to one side. I'm assuming that was why it malfunctioned? :O|-
Nice video, how would it fair with micro meteorites though
well I’d imagine at least stowed it would do even better cause there’s just less of it to hit, but basically everything we have is on equal footing just because of the insane energies involved, also I could’ve sworn this was just happening and wasn’t 4 years ago
How do people dislike this 😂
This could help solar sails deploy acres of solar sails and save weight
looks like a tank antana from lompock
Your perfect
I'm here early!
Energy from the sun is fun!!!😁👍🌎💫🌞6/19/2017 12:55PM
when not in use Rosa will be stored on fram 5 of the Express One pallet Rosa will not be stored aboard the station it will only be up here for a week and then it will be retracted and stored inside Dragon's trunk with disposable cargo headed back to Earth to be incinerated. so far the Disposable manifest has not been sent up yet and I will edit the wiki once I get confirmation what is coming down on Dragon when it undocks.
where's the sound😅😅
John Doe no sound in space
nickrulercreator that's the joke! Did u not see the emojies?
emojis are cancer
If TheRe'S nO WinD In SpAce wHy THe pAnElS Are MoVinG??
Being able to scale this tech up is going to be huge for the space programs. Could you imagine the labs you could run while orbiting planets in our solar system If it where scaled by just 100 times? No more running on a few 9 volt batteries worth of electricity. ;O)-
Scaling up would be slightly silly IMHO, if you mean scaling up as in several of these working in tandem then ok.
However you must keep in mind a single micro meteorite puncturing in an unfortunate location would put the whole panel out of action, the bigger the panel the bigger the loss.
You obviously don't know what your talking about or you would know that solar panels are already in use. Don't be a troll by default. :O\-
Do to the fact that they can auto-extend/retract offers room for both weight reduction and emergency retraction during debris storms. So yes, up-scaling is possible with proper monitoring of orbit.
I'll repeat "retractable" and add already modular. They already have debris tracking systems that can predict oncoming traffic. With storage tech exponentially growing in capacity/storage length as well as minimizing sizes means solar panels need not be extended as long and having even larger ones reduces that time even further. :O|-
And by "default" I'm referring to your need to argue about something you have either not put thought into or, your not educated in the technologies already in use. ;O)-
I just tried to turn up the volume...
I had foo fighters - these days in other window. serendipity.
Very cool! Would have been even better if you guys added music.
#oldschool.
Old school as in scrolls.
+
real as father christmas
rick Woods haha well santa isn't real but this surely is
Oh please, rick Woods! Every single one of your points has been addressed and debunked a thousand times. The fact that you don't seem to realise that makes it hard to take your post seriously.
Squodgamullis technology has a knack of improving over time not going backwards you well know that , official line from NASA is that they have to start from scratch to get back to the moon as most of the tech has been binned , ROFL
Squodgamullis wont even bother bringing up leaking helemets , etc etc etc!
Tell that to the operators of Concord. Can you take a supersonic passenger trip today?
Dar is wind in spaaaace!
Derpy Hooves
lol
you just know the nutters will run with it 🤔
I'm so proud of this community. No one called you an idiot for thinking there's wind in space because they didn't get the joke
Does kinda look like wind wobbling a sheet due to the vibration of rollout. Notice how it stops shortly after rollout finishes.
PS. There is a kind of wind in space, in case your forgetting.
Mal Vane Well ISS is technically still in atmosphere and there is solar "wind"...can't think of any other wind tbh.
sry, i just sneezed
7:32 NOTICE THE CURVE OF THE EARTH. ACCORDING TO THE APPARENT CURVE IN THIS PART, THE SPACE STATION MUST BE 5-10 THOUSAND MILES AWAY FROMTHE OLD PLANET. I THOUGHT IT WAS ONLY 280 MILES UP. THAT'S LESS THAN AN INCH AWAY FROM A 2' ROUND GLOBE. DOES THIS LOOK LIKE IT'S ONLY AN INCH AWAY? LOOKS LIKE YOU COULD FIT A WHOLE OTHER EARTH BETWEEN THE 2.
If you look closely, you can see the Earth is flat.
That's what they want you to believe, little lamb John
Why continue the lies and oppress millions? You will lose everything because of your greediness.. Praise God for my life and purpose and the lives of those who now are beginning to awaken from their sleep. You will be recompensed, in time.
Fake as hell !!!
Andrei Djurkov haha it's not though
Yep, hell is fake. But not this. This is quite real.
lol, you are funny, I like that...
Andrei Djurkov the reason why it blows like wind is from vibrations on the station
thetrayne the station has vibrations from many thing like exercise machines and the movement of other modules that rotate of experiments they try to keep the vibrations down but it's just something you can't stop