İşletme Yönetimi Programı / Business Management Program

Permanent URI for this collectionhttps://hdl.handle.net/11413/6802

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Browsing İşletme Yönetimi Programı / Business Management Program by Author "Kaynaş, Tayfun"

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    A Neuro-Detector Based On The Cybernetic Concepts For Fault Detection In Electric Motors
    (Journal Vibroengineering, Geliu Ratas 15 A, Kaunas, Lt-50282, Lithuania, 2011-12) Şeker, Serhat; Önal, Emel; Kaynaş, Tayfun; Akıncı, Tahir Çetin; TR7480; TR149517; TR141423; TR40367
    In this study, an auto-associative neural network (AANN) is designed as a fault detector using the cybernetic concepts. In this sense, an artificial neural network structure is connected with a finite state system or a finite automata and an AANN topology is described as a virtual detector. In terms of the practical application, vibration signals, which are taken from an induction motor of 5 HP for both the healthy and faulty motor cases, are considered in the spectral domain. The vibration signal presented in the healthy motor case is separated into 4 blocks and the spectral set of these blocks is used as input and target pattern sets during the training of the AANN. After the training process, a new vibration spectrum, which is defined in the faulty motor case is applied to this trained network and the faulty case is determined by the error variation at output nodes of the AANN. In this application, the error signal shows huge amplitudes between 2 and 4 kHz as an indicator of the bearing damage.
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    Revaluation of Turkey's energy policy connected with energy sources
    (Int Scientific Conference SGEM, 14, Kilment Ohridsky BLVD, Sofia, 1797, Bulgaria, 2010) Şeker, Şahin Serhat; Kaynaş, Tayfun; Ayhan, Damla; 7480; 141423
    Energy demand and consumption is one of the key factors of a country's level of development. They are not only related with economic development but also the dimension of security and environment should be taken into account. Hence, sustainability and resource diversity have overriding importance for the countries. Turkey has a considerably high level of renewable energy resources that can be a part of the total energy network in the country The optimum use of Turkey's non-renewable and renewable resources should receive attention in technological and economical development of the country. The study aims to determine new targets related to the potential of renewable and non-renewable energy sources in Turkey. In this direction a new classification which is compatible with economy, technology and environment has been done to determine a new energy policy. According to this classification, energy investment oriented items have been determined. As a result, the necessity of new investments of renewable energy sources in Turkey has been emphasized.