HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
News
Electronics & Test

NASA Will Use Cereal & Crayons to Test Engine Sensors

NO RATINGS
View Comments: Newest First|Oldest First|Threaded View
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
Hacking has a long history in the movies, beginning with Tron and War Games and continuing through The Girl with the Dragon Tattoo.
In a move that strengthens its 3D design business, Stratasys continued a 15-month buying spree this week by announcing its plan to acquire GrabCAD, a provider of a cloud-based collaboration environment for engineers.
Feature-advantage-benefit could help engineers in how we approach design problems, how we sell our ideas to management, and how we market ourselves when it comes to jobs.
Many diverse markets take advantage of semiconductor IP; so many that no one can recite the entire list without leaving off several. So why do we track all the vertical markets? They all have a unique set of requirements and value attributes differently. One major vertical market segment is automotive.
Adam Berger hacked a computer keyboard into a mini key-tar to play with his band.
More:Blogs|News
Design News Webinar Series
9/10/2014 11:00 a.m. California / 2:00 p.m. New York
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
7/17/2014 11:00 a.m. California / 2:00 p.m. New York
6/25/2014 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.
Sep 22 - 26, MCU Software Development – A Step-by-Step Guide (Using a Real Eval Board)
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


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.
Next Class: September 30 - October 2
Sponsored by Altera
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service