Do You Like Fluid Power Brain Teasers?

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BudT Power-User Join Date: Mar 2007 Location: Newburgh, IN Posts: 283 Good Answers: 10	Do You Like Fluid Power Brain Teasers? 01/15/2008 5:41 PM
	Take a look at this web site on some Brain Teasers I use to reinforce some areas of training in Fluid Power. They may seem simple at first but most require you to think in depth to come up with the right answer. http://www.hydraulicspneumatics.com/200/eBooks/Article/True/75038/ __________________ Bud Trinkel
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Chefdechocolate Associate Join Date: Jun 2007 Location: Zaragoza, Spain Posts: 35	#1 Re: Do You Like Fluid Power Brain Teasers? 01/17/2008 9:03 AM
	Soooooo nice place sir!!!!___ Quite useful.!!!___ Best regards, ___ Abel __________________ "I am NOT an engineer, so I will not create bigger problems to show off..."
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Anonymous Poster	#2 Re: Do You Like Fluid Power Brain Teasers? 01/17/2008 9:47 AM
	Thankx, I enjoyed some engineering.
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8320 Power-User Join Date: Apr 2005 Location: NY Posts: 130 Good Answers: 7	#3 Re: Do You Like Fluid Power Brain Teasers? 01/17/2008 9:57 AM
	Very nice, thanks for the link. I haven't done any fluid power design work or troubleshooting in several years. This was a good refresher!
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Beej50 Power-User Join Date: Aug 2007 Location: Childers, Queensland Posts: 412 Good Answers: 5	#4 Re: Do You Like Fluid Power Brain Teasers? 01/18/2008 2:22 AM
	Yes, nice site BudT, but, in fear of sounding stupid, I'm having problems in rationalising #1. I don't think the pressure gauge at the end of the system should read anything (if the pipe is direct to tank) and if it did read anything, you would need to know the down stream details! It's late, I'm tired, should probably get some zzzzz and look again! __________________ "A common mistake people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools!" Douglas Adams 1952-2001. E&OE!
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Decebalus Active Contributor Join Date: Jan 2008 Posts: 20	#5 In reply to #4 Re: Do You Like Fluid Power Brain Teasers? 01/19/2008 6:17 PM
	The problem nr. 1 does not say the end pipe goes in a tank. So it suppose to go in the system.
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Beej50 Power-User Join Date: Aug 2007 Location: Childers, Queensland Posts: 412 Good Answers: 5	#6 In reply to #5 Re: Do You Like Fluid Power Brain Teasers? 01/19/2008 6:25 PM
	Ha! My point precisely! Without down stream information, the last pressure gauge shown can not be determined! __________________ "A common mistake people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools!" Douglas Adams 1952-2001. E&OE!
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BudT Power-User Join Date: Mar 2007 Location: Newburgh, IN Posts: 283 Good Answers: 10	#7 In reply to #6 Re: Do You Like Fluid Power Brain Teasers? 01/19/2008 8:26 PM
	The stated pressure at "A" is 400 PSI, correct? Subtracting tje 75 PSI Back Pressure from the Check Valve between A" and "B" makes Gauge "B" read 325 PSI Subtracting the Back Pressure from the Check Valve with a 35 PSI spring makes Gauge "C" read 290 PSI Subtracting the Back Pressure from the Check Valve with a 125 PSI spring makes Gauge "D" read 165 PSI Evidently there is some restriction ater the outlet of the problem that is causing 165 PSI pressure. We don't have to know what causes that restriction but it must be there for Gauge "A" to read 400 PSI. Not meant to be tricky , but from several responses it seems that it is one that might need changig. The book had several MISTAKES on the first printing/class and on through several other classes changes were noted and made. I would still be interested in any mis-leading info or mistakes anyone finds. These exercises are interspersed in the class as the components or teaching is presented. It helps reinforce some psinciples that I find are not well understood and that can help in a Trouble Shooting situation when Pressure Gauges read High or Low and there seems to be no explanation except Magic. __________________ Bud Trinkel
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Beej50 Power-User Join Date: Aug 2007 Location: Childers, Queensland Posts: 412 Good Answers: 5	#8 In reply to #7 Re: Do You Like Fluid Power Brain Teasers? 01/19/2008 9:39 PM
	The site is still good though! I've been doing this stuff for years and it still makes me stop and think! If you find any more similar sites, please do bring them to our attention! Good on ya! __________________ "A common mistake people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools!" Douglas Adams 1952-2001. E&OE!
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8320 (1); Anonymous Poster (1); Beej50 (3); BudT (1); Chefdechocolate (1); Decebalus (1)

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