Posted on 05/04/2018 1:46:23 PM PDT by Red Badger
Think “temperature extremes with different expansion coefficients”.
The same agency that sent men to the moon a half century ago now seems to be incapable of tightening a bolt.
Fatigue? Embrittlement?
Sometimes you feel like a nut....sometimes you don’t.....
Unfortunately that type doesn’t survive the extreme cold of deep space
Teflon tape works better so do good technicians who know how
If they are now saying fly in 2020 that’s another slip
Mission creep and snake bit from the start. It is a giant money sucking hole that prevents other projects from being funded
It's named after James Webb, the second head of NASA who ran the organization from 1962 to 1968.
Webb died in 1992.
-PJ
James Webb......first director of NASA
You do not know what you are talking about. James Webb was well respected by one and all
Local tote doesn’t really withstand the cold of deep space. Teflon tape works better
Precisely
clinton named it after his daughter’s father
Excellent!
I’ll use some harbor freight tools and materials but the nuts and bolts, no thanks.
I’m a novice when it comes to car repairs. Search the net a lot. Removed a heat shield next to the transmission. They said put blue loctite on it. And there was the old blue there too. Seems the thin plate of the shield (like this “thin” solar shield) will vibrate. And probably the heating and cooling of the heat shield as well will work the bolts loose.
On my chevy truck, I swear the guy that designed it has a mean streak. Just to drop the transmission pan the exhaust was 1/4-inch too close, and a bracket was 1/2-inch too close on the other side to easily drop the pan.
After several attempts trying different things, I finally used a cable and turnbuckle to “winch” the bracket away - but still needed a pry bar for the last 16th of an inch.
Excellent!
As many as 20,000 pairs of nuts and bolts are required to assemble the 16 cars on a Shinkansen bullet train. With the trains whizzing along at 250 kilometers per hour, a single loose bolt could cause a major disaster. Painstaking safety checks and regular retightening of nuts is one way to prevent accidents, but one that involves serious investments of time and money. One of the unsung heroes whose work has enabled the Shinkansen to operate safely and affordably year after year is Wakabayashi Katsuhiko, the 78-year-old president of Hard Lock Industry Co., Ltd, who revolutionized rail safety by inventing a unique nut that never comes loose.
More at the linky.
I have great admiration for what NASA engineers have been able to accomplish - when unfettered by political types. I nearly puked when Obama’s guy made “Moslem outreach” a goal. WTF? I mean, if we were going to “outreach” Moslem terrorists into space (and leave them there), that’d be fine...but its a whole lot cheaper to just toss them out the back of a cargo jet or helicopter over the ocean, and cheaper yet to just shoot the SOBs and let the pigs clean up the mess...but I’m thinking that Obama intended something else.
Thanks for the Loctite link - after getting through all of the bureaucratic language, the lessons learned were short and simple: Loctite works to keep fastened things fastened, so long as you follow the application instructions...otherwise, its of questionable use.
So...I go back to my original point that the engineers should’ve just used Loctite. :>)
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.