Hydro-static Systems

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islam.aboauf Active Contributor Join Date: Jun 2012 Posts: 14	Hydro-static Systems 06/10/2013 6:56 PM
	I am trying to understand how hydrostatic systems work but I can't understand this I copied it from the book I am reading : (If the hydraulic cylinder (also under pressure) is at rest, e.g. in clamping hydraulics the forces are in equilibrium. This effect may be described as hydro-static. However, if the piston in the cylinder is moved by a supply of flow under pressure, then not only is the pressure produced from potential energy effective, but a boost pressure is also effective which is created by the kinetic energy. This pressure must be and is taken into account in fluid power systems. The relationships in this process or system may not really be described wholly as hydro-static, but the hydro-static relationships predominate.) can any 1 explain it for me please :)?
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lyn Guru Join Date: Oct 2008 Posts: 42355 Good Answers: 1693	#1 Re: Hydro-statics question 06/10/2013 7:31 PM
	Just means nothin's going anywhere, until a valve is opened. Hydrostatic equilibrium - Wikipedia, the free encyclopedia
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Tornado Guru Join Date: May 2009 Location: Richland, WA, USA Posts: 21017 Good Answers: 795	#2 Re: Hydro-static Systems 06/10/2013 9:47 PM
	One instance might occur when lowering a load. If it is stopped suddenly, such as by closing a valve, the inertia of the load can create a pressure considerably higher than the normal pump pressure of the system. The textbook statement seems overly abstract. It should have been accompanied with some examples. __________________ In vino veritas; in cervisia carmen; in aqua E. coli.
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#3 Re: Hydro-static Systems 06/11/2013 3:21 AM
	Google "water hammer". __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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islam.aboauf Active Contributor Join Date: Jun 2012 Posts: 14	#4 Re: Hydro-static Systems 06/11/2013 8:23 AM
	I want to understand how I can identify if this system is a hydrostatic system and not an hydro-kinetics one ...from the part I copied I understand that the pump will supply a fluid under-pressure and the cylinder at rest and also under-pressure but what if the cylinder's piston moved (will we consider the kinetic energy ?) or we identify the systems according to higher pressure systems which operates at low velocity is hydrostatics
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lyn Guru Join Date: Oct 2008 Posts: 42355 Good Answers: 1693	#5 In reply to #4 Re: Hydro-static Systems 06/11/2013 8:46 AM
	Oh God. If fluid is moving, the system is not hydro-static. LOOK UP THE DEFINITION OF HYDRO-STATIC!
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islam.aboauf (1); lyn (2); PWSlack (1); Tornado (1)

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