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.
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.
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.
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.
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.
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?
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.
Wal-Mart will hold its second Made in the USA Open Call July 7-8, at its headquarters in Bentonville, Ark. The event will be a repeat effort by the world’s biggest seller of consumer goods to increase the amount of US-made products it sells in Wal-Mart stores, in Sam’s Club members-only wholesale outlets, and on walmart.com.
From design feasibility, to development, to production, having the right information to make good decisions can ultimately keep a product from failing validation. The key is highly focused information that doesn’t come from conventional, statistics-based tests but from accelerated stress testing.
There’s a good chance that a few of the things mentioned here won't fully come to fruition in 2015 but rather much later down the line. However, as Malcolm X once said, "The future belongs to those who prepare for it today."
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.