Breaking News
Comments
Newest First | Oldest First | Threaded View
Page 1 / 2   >   >>
ReneCardenas
User Rank
Rookie
re: New sim, testing tools used to design Mars lander
ReneCardenas   8/6/2012 3:50:33 PM
NO RATINGS
Thank you for the great technical briefings, a refreshing view away from the daily press media.

george.leopold
User Rank
Rookie
re: New sim, testing tools used to design Mars lander
george.leopold   8/3/2012 2:25:40 PM
NO RATINGS
Here's a good summary of surface activities and science planned for the Mars Science Laboratory. That Nature article also provides a better measure of the spacecraft's entry and descent velocity that we have: 6 km per second to a standstill. Nature also reports that mission planners estimate there is a 95 percent chance of success, but the problem is the "unknown unknowns" and that the "overall biggest risk is our lack of imagination" NASA JPL is hardly alone on that point: http://www.nature.com/news/7-minutes-of-terror-1.11089

george.leopold
User Rank
Rookie
re: New sim, testing tools used to design Mars lander
george.leopold   8/3/2012 2:20:55 PM
NO RATINGS
Thanks for that update, Tim

SiemensPLM
User Rank
Rookie
re: New sim, testing tools used to design Mars lander
SiemensPLM   8/2/2012 7:41:26 PM
NO RATINGS
Thanks for the great interview and story, George. Regarding the sky crane, JPL ran live deployment tests in a hanger, and also accounted for the differences in atmosphere and rocket thrust in digital simulations. Fingers crossed for the final landing! - Tim Nichols, Siemens PLM Software

george.leopold
User Rank
Rookie
re: New sim, testing tools used to design Mars lander
george.leopold   8/2/2012 2:18:31 PM
NO RATINGS
We've not been able to get a complete rundown on the MSL simulation and testing program, but we do know that there was some actual testing of hardware that most certainly included testing of the rocket motors on the sky crane. Testing of other parts of the entry, descent and landing system are discussed here: http://nyti.ms/evj2MU Simulation were widely used for parameters like thermal loads during entry into the Martian atmosphere and to determine how the landing vehicle would handle G loads and severe vibrations. Cross your fingers that all this preparation will pay off on Monday.

george.leopold
User Rank
Rookie
re: New sim, testing tools used to design Mars lander
george.leopold   8/2/2012 2:14:09 PM
NO RATINGS
Follow the Curiosity landing on Mars here: http://mars.jpl.nasa.gov/msl/participate/

yalanand
User Rank
Rookie
re: New sim, testing tools used to design Mars lander
yalanand   8/2/2012 8:38:16 AM
NO RATINGS
@geroge, thanks for the post. Very informative. I didnt knew that Mars lander will be launched on Aug 6. Is this event live on NASA web-site ?

Sanjib.A
User Rank
CEO
re: New sim, testing tools used to design Mars lander
Sanjib.A   8/2/2012 3:36:11 AM
NO RATINGS
I am interested to learn how this new "Sky Crane" based landing system tested? Was the landing sytem tested by simulating the landing using the software tools (similar to a flight simulator)? Was their any real prototypes of the Sky Crane tested in the laboratory as well?

george.leopold
User Rank
Rookie
re: New sim, testing tools used to design Mars lander
george.leopold   8/1/2012 8:15:36 PM
NO RATINGS
Corrected, and thanks for the "crowd" editing.

markwrob
User Rank
Rookie
re: New sim, testing tools used to design Mars lander
markwrob   8/1/2012 7:01:26 PM
NO RATINGS
Hi George, "desparate CAD, CAE..." should be "disparate", though maybe in light of the high-risk landing, it is all desparate. ;-) Great story as usual!

Page 1 / 2   >   >>


Flash Poll
Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

The Best of the Best Videos on YouTube
Max Maxfield
2 comments
A couple of days ago, my chum Paul was visiting me in my office. He'd wandered over from his cubicle in the next bay to take a brief coffee break. This week, Paul had been admiring the ...

Jolt Judges and Andrew Binstock

Jolt Awards: The Best Books
Jolt Judges and Andrew Binstock
1 Comment
As we do every year, Dr. Dobb's recognizes the best books of the last 12 months via the Jolt Awards -- our cycle of product awards given out every two months in each of six categories. No ...

Engineering Investigations

Air Conditioner Falls From Window, Still Works
Engineering Investigations
2 comments
It's autumn in New England. The leaves are turning to red, orange, and gold, my roses are in their second bloom, and it's time to remove the air conditioner from the window. On September ...

David Blaza

The Other Tesla
David Blaza
5 comments
I find myself going to Kickstarter and Indiegogo on a regular basis these days because they have become real innovation marketplaces. As far as I'm concerned, this is where a lot of cool ...