IJET Vol. 1, Issue 1, March 2015International Journal of Engineering Technologies (IJET) Dergisi kayıtlarını içerir.https://hdl.handle.net/11363/4752024-03-28T19:10:31Z2024-03-28T19:10:31ZInternational Journal of Engineering Technologies (IJET) Vol. 1, Issue 1, March 2015https://hdl.handle.net/11363/20562020-04-16T13:33:05Z2015-01-01T00:00:00ZInternational Journal of Engineering Technologies (IJET) Vol. 1, Issue 1, March 2015
Çolak, İlhami
Dear Colleagues,
On behalf of the editorial board of International Journal of Engineering Technologies (IJET), I
would like to share our happiness to publish the first issue of IJET. My special thanks are for
members of editorial board, editorial team, referees, authors and other technical staff.
Please find the first issue of International Journal of Engineering Technologies at
http://dergipark.ulakbim.gov.tr/ijet. We invite you to review the Table of Contents by visiting our
web site and review articles and items of interest. IJET will continue to publish high level
scientific research papers in the field of Engineering Technologies as an International peerreviewed scientific and academic journal of Istanbul Gelisim University.
Thanks for your continuing interest in our work,
Professor ILHAMI COLAK
Istanbul Gelisim University
icolak@gelisim.edu.tr
http://dergipark.ulakbim.gov.tr/ijet
Print ISSN: 2149-0104
2015-01-01T00:00:00ZA Comparative Study of on and off Grid Tied Integrated Diesel Solar PV Generation SystemOkedu, KennethUhunmwangho, RolandBassey, Nganghttps://hdl.handle.net/11363/4822021-08-26T12:33:45Z2015-02-08T00:00:00ZA Comparative Study of on and off Grid Tied Integrated Diesel Solar PV Generation System
Okedu, Kenneth; Uhunmwangho, Roland; Bassey, Ngang
This paper presents a proposed hybrid system based on diesel generator and solar photovoltaic (PV) as an effective option to power a small remote community. The cost of running diesel generator speedily due to erratic power supply in a small remote community that is not grid connected is highly expensive and not environmentally friendly. A solar PV was used to reduce or augment the continuous diesel generator sets, resulting in reduced cost of operation and maintenance. A proper solar radiation data and sizing based on the specification of the PV system and battery bank was done. In addition, a comparative study was carried out considering two scenarios of the proposed model system. In the first scenario, the diesel generation, solar PV system was treated as autonomous (or standalone). In the second scenario, the proposed model system was connected to the grid system. It is discovered that powering the small remote community with the proposed hybrid system is much more beneficial and encourages competition with other conventional energy sources, because it minimizes both operating costs and pollutants emissions. Furthermore, analysis results obtain from HOMER software shows that is promising to implement the on-grid system.
DOI: 10.19072/ijet.105703
2015-02-08T00:00:00ZPosition Singularities and Ambiguities of the KUKA KR5 RobotHusi, Gézahttps://hdl.handle.net/11363/4812021-08-26T12:33:45Z2015-01-26T00:00:00ZPosition Singularities and Ambiguities of the KUKA KR5 Robot
Husi, Géza
Recently in the Robot technological laboratory of the Department of Electrical Engineering and Mechatronics (EEM) of the Faculty of Engineering, University of Debrecen there have been several researches concerning the KUKA and SONY Scara robots. Various diploma works have already been made in the laboratory and students have informed me that the running of their program was interrupted because of an unknown error. The error could be unanimously led back to the ambiguity of robots. Meanwhile, industrial partners also contacted the laboratory asking for advice to solve similar problems. To solve the aforementioned problem of this two-way inquiry I began to be engaged in the problems of singularities and ambiguities. The first part of the paper is a theoretical summary deducing the notions concerning robots from the general system technique. I tried to draft all the definitions as precisely as possible to be able rely on them, only to find out the complexity of the required mathematical apparatus necessary for getting to know the nature of this problem, albeit knowing the mathematics of the Denavit–Hartenberg transformation and the use of the Jacobi-matrix. This paper summarizes the singularity of robot positions and their uncertainty by analyzing the KR5 industrial robot in the Robot Technological Laboratory in the EEM. This paper regards the definition of the ISO 8373:2012 standard as a base and deduces all ideas and relations from this standard. ISO 8373 was prepared by the Technical Committee ISO/TC 184, Automation Systems and Integration, Subcommittee SC 2, Robots and Robotic Devices.
DOI: 10.19072/ijet.105700
2015-01-26T00:00:00ZMultiobjective Pareto Optimal Design of a Clutch SystemOzansoy, OnurTevruz, TalatMugan, Atahttps://hdl.handle.net/11363/4802021-08-26T12:33:45Z2015-02-08T00:00:00ZMultiobjective Pareto Optimal Design of a Clutch System
Ozansoy, Onur; Tevruz, Talat; Mugan, Ata
Optimum design of a clutch and dual mass flywheel system is completed. Although the clutch systems are exposed to both rotational and axial vibrations, they are generally designed by considering rotational vibrations of engines and they do not have any component to damp axial vibrations due to the following two reasons: first, the package area of the clutch system is very limited and there is no available space to put additional springs and dampers to reduce these vibrations. Second, axial vibrations are normally insignificant to be considered in the analyses and such vibrations are supposed to be damped by the diaphragm spring and cushion springs. Nonetheless, axial vibrations may lead to some unexpected problems in the power train such as the rattle noise that is examined in this study by using global optimization techniques. The components in the clutch system are modeled analytically. Then, by considering the pedal characteristics and vibrations of pressure plate as objective functions, a multi-objective Pareto optimization problem is solved. It is shown that analytical models agree well with the experimental measurements and vibrations in the clutch system can be reduced significantly by choosing the design parameters with optimization tools.
DOI: 10.19072/ijet.105704
2015-02-08T00:00:00Z