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  • Last update: 5 years ago
  • Total downloads: 27
  • Operating system: Linux, Mac OS X, Win All, BSD, Solaris
  • Publisher: Galal (4 other programs)
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scripts default iconLine_Flow_4lump_with_and_withou (Scripts) Publisher's description

The remarkable advance in hydraulic and electrohydraulic power

The remarkable advance in hydraulic and electrohydraulic power systems resulted in producing control valves of very short settling time. The rapid closure of hydraulic transmission lines leads to severe pressure surge. The attached Simulink file is developed to evaluate the applicability of oleo-pneumatic accumulators for the protection against this phenomenon. A lumped parameter model was developed for the transmission line, assuming four lumps, considering the effect of line resistance, inertia and capacitance. The validity of lumped parameter models is evaluated by comparing theoretical results with published experimental results. This part is also available on the Matlab file exchange. The theory and results discussion are published in my paper: M. Galal Rabie, " On the Application of Oleo-Pneumatic Accumulators for the Protection of Hydraulic Transmission Lines against Water Hammer", IJFP, Vol.8, Nr. 1, March 2007, pp 39-50, and my book: M Galal Rabie, Fluid Power Engineering, McGraw-Hill, NY, May 2009.

System Requirements:

MATLAB 7.6 (R2008a)
Program Release Status: New Release
Program Install Support: Install and Uninstall

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