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William K.
User Rank
Platinum
Re: Individual Servo Pumps - COOL!
William K.   11/19/2013 11:35:27 AM
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Elizabeth, you are right. For many years a part of my job was to create ways to improve system designs without giving up anything except costs. It becomes part of one's being, which sometimes bothers others. 

And have you noticed that we are the only ones posting for the past 8 days? Are we here all alone? Just wondering.

Elizabeth M
User Rank
Blogger
Re: Individual Servo Pumps - COOL!
Elizabeth M   11/19/2013 4:16:48 AM
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That sounds like a good idea, William K. That way they could use the same concept but as you point out, in a less expensive way. I suspect it is probably your experience as an engineer that allows you to see this type of modification to the system! :)

William K.
User Rank
Platinum
Re: Individual Servo Pumps - COOL!
William K.   11/18/2013 9:08:18 PM
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Elizabeth, now it would be interesting to see if the same design team could adapt their concept to use a single variable displacement pump to provide just the needed flow for the various hydraulic circuits. That ought to provide almost as much fuel savings at a much lower total system cost, as well as being a lot lighter and simpler to build. And it would only have a slightly more complex controls program.

Elizabeth M
User Rank
Blogger
Re: Individual Servo Pumps - COOL!
Elizabeth M   11/18/2013 3:48:08 AM
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Yes, William K., your point also can apply to a lot of things in life. Experience is invaluable. People can learn all they want from books or in school or whatever method they use, but sometimes pure experience is the most valuable thing they can contribute to a job, a problem or what have you. I am in complete agreement with you on this, especially since I feel like for my own profession, most of what I have learned has come from experience, nothing else!

William K.
User Rank
Platinum
Re: Individual Servo Pumps - COOL!
William K.   11/14/2013 10:43:35 PM
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Elizabeth, that is my point. The best way to work out the bugs is to have enough insite to do it on paper, or the tube, before cutting metal. And it takes a lot of insight and understanding to be able to do that. And I doubt that insight can be taught.

Elizabeth M
User Rank
Blogger
Re: Individual Servo Pumps - COOL!
Elizabeth M   11/13/2013 8:46:43 AM
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You make a good point again, William. Sometimes it really takes an experienced and seasoned engineer to get around the problems you describe. It's a shame that this isn't being valued more in the engineering field, since these cutting-edge designs you talk about probably need to go through some ups and downs and troubleshooting before being fully realized. It seems like this is where experienced engineers would really come in handy.

William K.
User Rank
Platinum
Re: Individual Servo Pumps - COOL!
William K.   11/12/2013 8:08:52 PM
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Elizabeth, Finding problems while a system is still only a design is what engineers are supposed to do. Worst case it should happen at a design review, or during one of those peer-to-peer discussions that should be part of every project. Of course it helps a lot to have engineers with a broad background and a great deal of experience. But those are the ones being discarded because they are a bit older and often paid a bit more, and they may not be quite as much in love with the very latest in cutting edge concepts that have not been proven to have any value. And a newly graduated engineer, no matter how incredibly brilliant they may be, is usually lacking in experience in areas outside of some very narrow field. And it is very easy to not notice what you don't see, and wouldn't reccognize if you did see it, because of never having seen one before. ( How's that for a metaphor?)

Elizabeth M
User Rank
Blogger
Re: Individual Servo Pumps - COOL!
Elizabeth M   11/12/2013 10:17:23 AM
NO RATINGS
You make some good points, William K. Indeed, when researchers solve one problem with a solution, another problem will arise. And of course as you point out, that problem isn't discovered until implementation of the solution, which isn't always helpful!

William K.
User Rank
Platinum
Re: Individual Servo Pumps - COOL!
William K.   11/11/2013 7:04:13 PM
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Elizabeth, sometimes it is a challenge to understand how some of the claims that I see can even be made. In this instance it seems that there is a trade being made that has unanticipated secondary results which have perhaps not been studied adequately. And sometimes the unanticipated secondary outcomes are hard to ffigure out without some rather deep understanding of the whole system.

William K.
User Rank
Platinum
Re: oR IS JUST A TRADE FOR MORE COMPLEXITY?
William K.   11/11/2013 6:59:02 PM
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ky2qd, I agree with the first fart of your post completely. But the second part may not be needed if all of the elements have a demonstrated reliability already. It is a new concept using existing hardware, at least that is how it looks to me. And my bet is that the first and major failures will be in the software, not the hardware.

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