HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Page 1/2  >  >>
Scott Orlosky
User Rank
Platinum
Re: ENGINE SENSORS
Scott Orlosky   5/19/2012 6:16:31 PM
NO RATINGS
I agree - thanks for the article  This sort of testing is the unglamorous "grunt work" that leads to advances in safety and improved performance over time. Kudos for highlighting a critical part of the design process - understanding how products perform in the real world.

bobjengr
User Rank
Platinum
ENGINE SENSORS
bobjengr   5/15/2012 3:09:13 PM
NO RATINGS

Great article.    I am always amazed at the resourcefulness engineers bring to the table when developing tests and executing programs.     Several years ago, the Air Force had a program to evaluate bird strikes when ingested into inlets of jet engines.    This came after several near-fatal accidents at Shaw Air Force Base in South Carolina.  I was in basic training shortly before one such incident occurred.  The pilot ejected successfully but the F-4 was lost.   He was making touch and go landings when a swamp buzzard got into the act.  It happens in a heartbeat but can be devastating.   To get some idea as to severity, dead chickens were tossed into stationary aircraft, with engines running, to see what damage might result.   The test was aborted due to PETA.  (The chickens were dead, by the way.)   This program is much more structured; consequently, you would expect the results to be much more beneficial to investigators in the process of proving sensors.  I do know also that volcanic ash although infrequent,   represents a real problem to aircraft engines.   Again, great article. 

Rob Spiegel
User Rank
Blogger
Re: Interesting choice of materials
Rob Spiegel   5/11/2012 3:26:05 PM
NO RATINGS
Yes, Chuck, I remember at the time reading about the serious danger. So caution made sense, especially since they didn't know exactly where the ash was or how dense it was. Presumably, sensors in the turbines would allow the aircraft to divert from an ash cloud before the engines were destroyed.

Dave Palmer
User Rank
Platinum
Aeronautics research
Dave Palmer   5/11/2012 9:38:17 AM
NO RATINGS
Elizabeth, thanks for this article.  The first A in NASA stands for Aeronautics, yet NASA's aeronautics programs get much less attention than the space program.

Charles Murray
User Rank
Blogger
Re: Interesting choice of materials
Charles Murray   5/10/2012 6:49:34 PM
NO RATINGS
I have to admit, Rob, I too thought they were being too cautious at the time. But after reading TJ's comment below, I'm not so sure. Apparently, one aircraft had four engines flame out after encountering an ash cloud in 1982, it says.

Rob Spiegel
User Rank
Blogger
Re: Interesting choice of materials
Rob Spiegel   5/10/2012 1:42:02 PM
NO RATINGS
Yes, Chuck, the big carriers lost tons. They were furious with the government, beliving they were being overly cautious. The advantage of these sensors is that the decision to fly or not could be made based on evidence rather than speculation.

Ann R. Thryft
User Rank
Blogger
Re: Interesting choice of materials
Ann R. Thryft   5/10/2012 12:31:20 PM
NO RATINGS
I did notice--as no doubt others did--the statement in the article about what cereal and crayons will accomplish. What I'd like to know is why cereal and crayons for this purpose, instead of something else? For example, was the choice based on size of particles, consistency, or other factors?

ervin0072002
User Rank
Gold
Re: Testing for minimum safe levels?
ervin0072002   5/10/2012 11:36:19 AM
NO RATINGS
These clouds do spread over continents. Its not a small event.

ervin0072002
User Rank
Gold
Re: Not really useful for avoiding debris damage
ervin0072002   5/10/2012 11:34:35 AM
NO RATINGS
There is a Suit of sensors in your everyday jet engine now. These sensors can help you monitor, control, and plan maintenance. Some are even indicator only. I don't know what this extra suit of sensors will do for us? Maybe increases cost and adds weight? Other than research purposes I don't think this research has much to offer. Just an opinion, I would like to see the report to this when all is done.

 

 

ChasChas
User Rank
Platinum
cleaning up
ChasChas   5/10/2012 11:02:22 AM
NO RATINGS
 

I've read where walnut shells are run through to clean the turbines, etc. Seems like this may be needed after the tests.

Page 1/2  >  >>


Partner Zone
Latest Analysis
(Video) NASA's Modular Robotic Vehicle (MRV) is an EV inspired by manned rovers used for space exploration.
Comedian John Oliver recently did a segment on patent trolls, offering a hiliarious take on a serious issue plaguing US industries.
United Launch Alliance will fly 3D-printed flight hardeware parts on its rockets starting next year with the Atlas V. The company's Vulcan next-gen launch vehicle will have more than 100 production parts made with 3D printing. The main driver? Parts consolidation and 57% lower production costs.
The new small-form-factor EZ-BLE PRoC (Programmable Radio on Chip) module is a derivative of the existing PRoC BLE Programmable Radio-on-Chip solution. The EZ-BLE PRoC module integrates the programmability and ARM Cortex-M0 core of the PRoC BLE, two crystals, an onboard chip antenna, a metal shield, and passive components.
The engineers and inventors of the post WWII period turned their attention to advancements in electronics, communication, and entertainment. Breakthrough inventions range from LEGOs and computer gaming to the integrated circuit and Ethernet -- a range of advancements that have little in common except they changed our lives.
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.
May 4 - 8, Designing Low Power Systems using Battery and Energy Harvesting Energy Sources
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