Development of high performance hydraulic servo and fast switching valves / Moataz Magdi Mahmoud Amin Abdulhafez ; Supervised Saad A. Kassem , Hubertus Murrenhoff , Mohamed A. Elgamil

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Moataz Magdi Mahmoud Amin Abdulhafez

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TextLanguage: English Publication details: Cairo : Moataz Magdi Mahmoud Amin Abdulhafez , 2016Description: 123 P. : ficsimles , photographs ; 30cmOther title:

تطوير صمامات هيدروليكية عالية الأداء مؤازره و صمامات سريعة الانتقال بين أوضاغ التشغيل [Added title page title]

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Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Mechanical Design and Production Summary: In the present work a new closed center valve concept is presented and analyzed. The valve is proposed for use as a pilot stage for a two stage servovalve. The valve operation concept is verified using MATLAB simulink and the flow rate is estimated using ANSYS Fluent. The dynamic performance is analyzed using the developed model. Using the results of the simulations, full mechanical design drawings for the servovalve are presented which is shown to be competitive with existing commercial valves. In addition to the servovalve, a fast switching valve is presented and simulated in Simulink as a pilot stage for a two stage digital valve. Different control modes are used in the simulation and the results are shown to be promising compared to existing digital valves

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Holdings
Item type	Current library	Home library	Call number	Copy number	Status	Barcode
Thesis	قاعة الرسائل الجامعية - الدور الاول	المكتبة المركزبة الجديدة - جامعة القاهرة	Cai01.13.13.M.Sc.2016.Mo.D (Browse shelf(Opens below))		Not for loan	01010110071641000
CD - Rom	مخـــزن الرســائل الجـــامعية - البدروم	المكتبة المركزبة الجديدة - جامعة القاهرة	Cai01.13.13.M.Sc.2016.Mo.D (Browse shelf(Opens below))	71641.CD	Not for loan	01020110071641000

Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Mechanical Design and Production

In the present work a new closed center valve concept is presented and analyzed. The valve is proposed for use as a pilot stage for a two stage servovalve. The valve operation concept is verified using MATLAB simulink and the flow rate is estimated using ANSYS Fluent. The dynamic performance is analyzed using the developed model. Using the results of the simulations, full mechanical design drawings for the servovalve are presented which is shown to be competitive with existing commercial valves. In addition to the servovalve, a fast switching valve is presented and simulated in Simulink as a pilot stage for a two stage digital valve. Different control modes are used in the simulation and the results are shown to be promising compared to existing digital valves

Issued also as CD

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