Diggability assesment of bucket wheel excavators in Elbistan lignite mine

Reliability analysis for two draglines in Tunçbilek lignite mine Tuncay, Deniz; Demirel, Nuray; Department of Mining Engineering (2014) In modern mining activities, high-capacity complex machines are used and their availability plays a big role on the mine productivity. Draglines are one of the high capacity mining machines which result in decrease in production in case of failure or unavailability. This study aims to determine the effects of different components of two draglines (PAGE 736 and MARION 7820) to their availability and operability by choosing adequate reliability models and conducting fault tree analyses. Reliability analysis w...
Interactive energy consumption parameters of walking draglines in Turkish coal mines Özdoğan, Metin; Özgenoğlu, Abdurrahim; Department of Mining Engineering (2002) This thesis presents and discusses the production and direct current motor performances of walking draglines from equipment excavating ease perspective operating at some Turkish surface coal mines based on the on-board monitoring research carried out with portable laboratory type monitor. The thesis investigates and interprets interactive excavating energy consumption of the equipment at ground engagement as a reaction of equipment to varying bench digging conditions; analyzes cycle time and energy componen...
Reliability-based maintenance optimization of walking draglines Gölbaşı, Onur; Demirel, Nuray; Department of Mining Engineering (2015) Dragline is an earthmover extensively utilized in open cast coal mines for overburden stripping activities. Since the machinery breakdowns may induce high amount of production losses, draglines are required to be operated with high availability. In this sense, effective maintenance policies are essential to improve longevity of dragline component and sustainability of operations. In this research study, it is aimed to develop a reliability-based maintenance optimization models for two walking draglines, Pag...
Acquisition of field data for agricultural tractor Koyuncu, Atayıl; Adalı, Orhan; Department of Mechanical Engineering (2006) During the operations of an agricultural tractor, front axle and front axle support encounter the worst load conditions of the whole tractor. If the design of these components is not verified by systematic engineering approach, the customers could face with sudden failures. Erkunt Agricultural Machinery Company, which is located in Ankara, has newly designed and manufactured the front axle support of its agricultural tractors. In this study, the design of 2WD (Wheel Drive) Erkunt Bereket Agricultural Tracto...
Minority policies in Bulgaria: countinuity and change Tahir, Tahir; Türkeş, Mustafa; Department of International Relations (2003) This thesis analyzes Bulgaria̕s minority policy followed by various governments during the Principality, the Kingdom, Peoples Republic and post-Communist Bulgaria. General discussion and assessment of minority rights standards within major international organizations is followed by analysis of minorities̕ status and treatment in Bulgaria since 1878. The thesis seeks answers to what have been the main features of minority policies in modern Bulgarian history, what has constituted its continuity and change.

Citation Formats

O. Ş. Koncagül, “Diggability assesment of bucket wheel excavators in Elbistan lignite mine,” Ph.D. - Doctoral Program, Middle East Technical University, 1997.