HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Page 1/3  >  >>
Ann R. Thryft
User Rank
Blogger
Re: The big question - Fatigue
Ann R. Thryft   7/3/2013 12:33:40 PM
NO RATINGS
notarboca, I'd be very surprised if Airbus *didn't* do the type of tests you mention. The 15 slides shown in my previous story on the 350, "Slideshow: Anatomy of a Composite-Heavy Jetliner"
http://www.designnews.com/author.asp?section_id=1392&doc_id=264009
are a mere smattering of all the various press releases and announcements made on the many, many steps during this entire process, and many of those represent a ton of different tests. Commercial aircraft must go through a very rigorous testing process, much more extensive than that of military aircraft. We've discussed this, regarding composites, here:
http://www.designnews.com/document.asp?doc_id=235863
and here:
http://www.designnews.com/author.asp?section_id=1386&doc_id=235214
Airbus seems to have learned from Boeing's mistakes.



Rob Spiegel
User Rank
Blogger
Re: Promising news
Rob Spiegel   7/3/2013 8:50:08 AM
NO RATINGS
Good point, Ann. Even though it is old tech that is giving the 787 trouble, someone must be overlooking the old tech. Perhaps they've been overly focused on the new tech.

notarboca
User Rank
Gold
Re: The big question - Fatigue
notarboca   6/30/2013 2:38:48 AM
NO RATINGS
Ann, TJ-- I, too, would like to see composite fatigue results.  Fatigue kills airframe components!  The only way the US Air Force has been able to keep B-52s airworthy is to address this, since the wing flexes about 6 feet with every takeoff and landing cycle.  Quite a maintenence effort.

I doubt Airbus has taken a horizontal stablizer into a test bed and twisted/jerked it six ways from Sunday to see fatigue results.  Most probably rely on computer modelling, but I hope not.

a.saji
User Rank
Silver
Re: Promising news
a.saji   6/29/2013 10:22:19 AM
NO RATINGS
@Murray: Yes sounds like that to me too. You need to provide the fullest support towards industries like aviation since they are the things which carries the industry forward if its right on track with technology. 

Ann R. Thryft
User Rank
Blogger
Re: Promising news
Ann R. Thryft   6/28/2013 11:44:34 AM
NO RATINGS
Yes, I saw that poll. That's the power of bad press. The fact that this is old tech, not new tech, at fault makes me nervous, because that indicates a systemic problem, like one of QA/maintenance. If anything, you'd think those oversight-type systems would be tightened on the 787 by now, not loosened.

Rob Spiegel
User Rank
Blogger
Re: Promising news
Rob Spiegel   6/27/2013 11:19:09 PM
NO RATINGS
Good question, Ann. If it's not new technology, why is there a problem? Also, have you seen the Design News instant poll on whether readers would be willing to fly on the 787?

Ann R. Thryft
User Rank
Blogger
Re: Promising news
Ann R. Thryft   6/27/2013 12:17:39 PM
NO RATINGS
Thanks, Rob. So now it's a brake indicator problem--not exactly new technology. At least the most recent problems have been mechanical, and not related to new technologies. OTOH, one wonders why they happened at all.

Rob Spiegel
User Rank
Blogger
Re: Promising news
Rob Spiegel   6/26/2013 7:16:48 PM
NO RATINGS
Ann, a 787 was diverted for mechanical problems on Sunday:

http://edition.cnn.com/2013/06/23/travel/dreamliner-diverted/index.html

Ann R. Thryft
User Rank
Blogger
Re: Promising news
Ann R. Thryft   6/25/2013 3:03:16 PM
NO RATINGS
Oh no, what happened now?

Rob Spiegel
User Rank
Blogger
Re: Promising news
Rob Spiegel   6/25/2013 3:01:10 PM
NO RATINGS
Boeing has really had its problems, even just this week. It will be interesting to see if Airbus has similar difficulties.

Page 1/3  >  >>


Partner Zone
Latest Analysis
From home enthusiasts to workers on the manufacturing floor, everyone's imagination is captured by the potential of 3D printing. Prototyping, spare parts creation, art delivery, human organ creation, and even mass product production are all being targeted as current and potential uses for the technology.
ABI Research, a firm based in the UK that specializes in analyzing global connectivity and other emerging technologies, estimates there will be 40.9 billion active wirelessly interconnected “things” by 2020. The driving force is the usual suspect: the Internet of Things.
Just in time for Earth Day, chemicals leader Bayer MaterialScience reported from the UTECH Europe 2015 polyurethane show on programs and applications using its materials to help reduce energy usage. The company also gave an update on its CO2-based PU as that eco-friendly material comes closer to production.
Solar and wind energy are becoming more viable as a source of energy on the electric grid. For decades, the major drawback to solar and wind was that they’re temperamental. A cloudy day kills solar and a still day renders the wind turbines useless. Automation tools, however, are providing a path to help these renewables become practical.
In honor of Earth Day, the National Security Agency has launched the STEM Recycling Challenge in Maryland schools to encourage kids to think about where the garbage they throw out every day actually goes. The agency has also introduced “Dunk,” a muscular blue cartoon recycling bin wearing shorts and sneakers.
More:Blogs|News
Design News Webinar Series
3/31/2015 11:00 a.m. California / 2:00 p.m. New York
2/25/2015 11:00 a.m. California / 2:00 p.m. New York
12/11/2014 8:00 a.m. California / 11:00 a.m. New York
5/7/2015 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Apr 20 - 24, Taking the Internet of Things to the Cloud
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Last Archived Class
Sponsored by Proto Labs
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service