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System frequency tuning for heaving buoy wave energy converters / Ahmed Hamdy Abdelmaguid Sakr ; Supervised Sayed M. Metwalli , Yasser H. Anis

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Ahmed Hamdy Abdelmaguid Sakr , 2017Description: 124 P. : charts , facsimiles ; 30cmOther title:
  • ضبط التردد لعوامة أنظمة محولات الطاقة الموجية [Added title page title]
Subject(s): Online resources: Available additional physical forms:
  • Issued also as CD
Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Mechanical Designand Production Summary: In this thesis, we present a quick long-term reactive loading control for heaving buoy wave energy converter. The control is achieved by introducing an external continuous variable sti ness that is connected to the buoy to tune its natural frequency. The external sti ness is connected to the buoy through a continuous Vbelt drive to change its e ect on the buoy. This control maximizes the oscillation amplitudes; hence, maximizing the power absorption e ciency by achieving near-resonance operation. Analytical results show a promising power absorption increase as compared to other control techniques. Experimental results, for an equivalent vibrating system, prove the concept of the control operation
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Item type Current library Home library Call number Copy number Status Barcode
Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.13.M.Sc.2017.Ah.S (Browse shelf(Opens below)) Not for loan 01010110075858000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.13.M.Sc.2017.Ah.S (Browse shelf(Opens below)) 75858.CD Not for loan 01020110075858000

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

In this thesis, we present a quick long-term reactive loading control for heaving buoy wave energy converter. The control is achieved by introducing an external continuous variable sti ness that is connected to the buoy to tune its natural frequency. The external sti ness is connected to the buoy through a continuous Vbelt drive to change its e ect on the buoy. This control maximizes the oscillation amplitudes; hence, maximizing the power absorption e ciency by achieving near-resonance operation. Analytical results show a promising power absorption increase as compared to other control techniques. Experimental results, for an equivalent vibrating system, prove the concept of the control operation

Issued also as CD

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