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Çekme Kepçe Dragline Bum Gerilme Dağılımının Sonlu Elemanlar Yöntemi ile Analizi
Date
2009-05-08
Author
Demirel, Nuray
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https://hdl.handle.net/11511/86589
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Çekme Kepçe Peformansını Etkileyen Operasyonel Faktörler
Demirel, Nuray (null; 2009-11-06)
Walking draglines are generally used for stripping overburden in open cast coal mines.In Turkey, nine walking draglines are operated for handling the overburden stripping inlignite coal mines. It is important to maximize the performance of walking draglines to justify its high capital investment requirement, which could reach 100 million USD, forsustaining the economic feasibility of the mine. This study summarizes the operationalfactors that determine the performance and efficiency of the walking draglines...
Reliability of Dragline’s Subsystems
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Systems are functional mechanisms, intending to perform a specific task in a defined time period. During the operations of systems, it is encountered with the imperative shutdowns due to external and internal considerations. Retrospective data covering the causes of the shutdowns and their durations can help to predict the time-dependent reliability amounts of the system, detect the critical parts, and improve the maintenance and repair plans. Reliability analyses, especially common at the industries in nee...
Comparative seismic assessment of continuous slab on girder bridges with multi column pier bent and hammerhead pier for soft and stiff soil conditions
İmamoğlu, Çağrı; Dicleli, Murat; Department of Engineering Sciences (2018)
This thesis is mainly focused on comparative seismic assessment of bridges with multi-colum pier bent and hammerhead pier under soft to stiff soil conditions. Soil and structure interaction (SSI) plays a vital role in bridge engineering as SSI on buildings and SSI on bridges. Moreover, bridges with tall piers having high aspect ratios are chosen in order to investigate the effects of rocking. The scope of this thesis is limited to symmetrical bridges having high aspect ratios. SSI in bridges is taken into c...
Geometry-based modeling of dispersion in core-shell particle media
Hatipoğlu, Emre; Koku, Harun; Department of Chemical Engineering (2017)
Dispersion is an important physical phenomenon that heavily influences performances of systems such as chromatographic separation processes. Mathematical modeling of this phenomenon is therefore widely investigated. This thesis study investigates dispersion of random-walking particles, or tracers, around core-shell particles, a type of recently commercialized spherical and porous stationary phase used in liquid chromatography that has a solid impermeable core that limits diffusion near the center and a poro...
Development of design equations to estimate live load effects in hammer-head bridge piers
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N. Demirel, “Çekme Kepçe Dragline Bum Gerilme Dağılımının Sonlu Elemanlar Yöntemi ile Analizi,” 2009, vol. 189, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/86589.