I am looking at using a structural shape (I-beam) as a support member in a test set up I am working on. Essentially I will have a cantilevered I-beam with a couple of point loads along the span. The only kicker is that it will be operating at elevated temperatures.
I am considering using a beam...
First thing coming to mind would be to check the alphas of the shaft and the bearing materials. Make sure the bearing isn't growing too much at higher temps.
CDP temperature and pressure varies from engine to engine. It is extremely warm and pressure is usually pretty high (800°F and 400 psi perhaps). I was actually thinking more along the lines of a radiant system that would not have external hole features. It would simply have an internal circuit...
I don't know if anyone has ever tried running compressor bleed to the blades. Granted, I can think of 5 or so technical difficulties involved, especially the sealing and routing of some kind of distribution manifold, but the big benefit is that you will always have CDP as long as you have...
I'll chime in a bit here as well. I would say that the BSME is the way to go. I had a few classes with technology types. The thing is that YOU have control over the type of job you want and will go for. If you like being hands on, there are PLENTY of jobs out there that have engineers turning...
I was just talking to a supplier I use. He had stated that they were implementing an increase in the next week or so. He didn't specify that that was the reason, but one of my co-workers did mention this ship's status and thought there may be a connection.
When CH-47s went from aluminum to composite, there was a great advantage to life and weight. There is a very noticeable twist them as well. Sorry I can't shed any light into the manufacture though. I never got to see that aspect.
This page is the best CH-47 resource on the net and has a good...
Variable inlet guide vanes are also a means of helping to delay the onset.
Gordon, can you be a bit more specific when you say "wavy?" Are you refering to the swept/blended fan blade designs most of us have moved to?
If you hold most parts in your hand, you'll probably make them grow .0001. We tend to hold balance arbors very tight as well. It makes sense to have the arbor as close as possible and worry about the part separately. Sure you can do arbor compensation, but on R&D hardware, you try to eliminate...