Ha ha kawamatt2,
That's probably exactly what I'm looking for and by chance my brother is dating a Russian girl. I wonder if she'll translate it for me! How the hell did you find that?
Airfix
EdStainless that's a good article. Thank you but only looks at a 2 ring system which I've analyzed many times in the past. I've manage to work up a solution using iteration to get close to what I need for a 3 ring system.
sreid,
While FEA is great in lots of scenarios it is not the case...
JStephen,
I thought about that but when you press the first assembly onto the third cylinder it will cause a change in the pressure between the first two cylinders. Depending on the stiffness of each of those cylinders will change the stress within the middle cylinder.
The inner two cylinders...
I'm working a problem with a three ring press fit situation and I'm trying to find the stresses in the middle ring. Can anybody point me to a method for calculating this by hand/excel?
Analysis of the stresses as a reult of the press fit between two cylinders is fairly well established in...
This is all good stuff. Nice post there greenimi. My thought process on how to measure bonus tolerance was in reference to a gauge. You have have an ideal MMC female thread gauge and you thread a male part that is something less than MMC then any radial play would be legal "bonus tolerance"...
I appologise. I thought you were totally trolling but I wasn't familiar with the bold, large font, dark blue link. It's a little different from other BBs I've used. That's actually a useful link. Thank you.
That's a really good point but that's exactly what MMC does is to provide bonus...
Thanks Dave. That's kind of what I was thinking but I'd not be happy about using an MMC callout. The reason being that the hole position has to be controlled tightly for alignment (across a long oil jet)and I don't like the extra bonus tolerance you'd get with the MMC. Having said that using...
That's quite helpful CheckHater I hadn't thought of that. Perhaps you could post a link of something relevant that helps clarify my understanding.
Belanger thanks for the response. There is no material condition associated and probably should be RFS. In my mind I'm think of an external...
I see lots of callouts where thread pitch diameter and gear pitch diameter are the primary datums.
I had an instance recently where an outlet hole in an oil jet had to be controlled back to a thread pitch diameter as its primary datum.
As a pitch diameter is a theortical diameter I'm having a...
Our company has run many oil component tests at room temperatures and above using impeller style flow meters. However these meters become inaccurate and difficult to calibrate at cold temperatures.
What is the best flow measurement method for measuring MIL-PRF-7808 oil in a swagelok type bench...
I am designing a test fixture that needs to be of a certain overall axial stiffness to test a linear actuator. The test stand sees a linear load from the actuator that puts a compressive load and bending load into the test fixture.
To get the test stand to the correct stiffness I made a very...
