Cuneyt Fetvaci

Cuneyt Fetvaci
İstanbul University-Cerrahpaşa · Department of Mechanical Engineering

PhD

About

22
Publications
10,340
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
103
Citations
Citations since 2017
6 Research Items
54 Citations
201720182019202020212022202302468101214
201720182019202020212022202302468101214
201720182019202020212022202302468101214
201720182019202020212022202302468101214

Publications

Publications (22)
Article
Full-text available
An ankle-foot orthosis (AFO) is an externally applied assistive device that encompasses the lower leg, ankle, and foot of the human body. In the current one-piece passive-dynamic AFO design, the trimming process is performed from lateral and medial parts of the ankle to ensure desired rotational displacement (hereafter referred to as Design I). In...
Article
This paper studies the computerized tooth profile generation of involute gears cut with rack-type cutters. Based on the theory of gearing the mathematical models of generating cutter with asymmetric involute teeth and generated involute gears are given. Beveloid (conical involute) gears are considered for a generalized type of involute gearing for...
Article
Bu calismada pinyon-tipi takimla imal edilen evolvent dislilerin bilgisayar simulasyonu ele alinmistir. Disli teorisinden hareketle kesici takimlarin ve imal edilen ic ve dis dislilerin matematik modelleri verilmistir. Imal edilen evolvent bolgenin disbasinda sonlanmasini saglayan tasarim parametresinin efektif limitinin bulunmasi arastirilmistir....
Conference Paper
Full-text available
Ankle-foot orthosis (AFO) is an externally applied assistive device that encompasses the lower leg, ankle and foot of the human body. AFO is used to control instabilities in the lower limb by compensating for the muscle weakness and aligning the positions of ankle and foot properly. There are many type of AFO which are designed for different biomec...
Article
This paper studies the conjugated involute profile which are used in internal gear pumps. In this type of gear mechanisms, the internal gear profile is completely conjugate of the external gear profile. A composite line of action curve is obtained because the root fillets also play role in engagement cycle. The perfomance of the mechanism is increa...
Article
This paper studies the equations of rack cutters for generating involute gears with asymmetric teeth. The asymmetry means that different pressure angles are applied for the driving and coast sides. By applying the equations of the designed profile of the rack cutter, the principle of coordinate transformation, the theory of differential geometry, a...
Article
The aim of this study is to define Design For Assembly (DFA) technique in the light of concurrent engineering methodology, determine the principles and manifest these principle effects on an application through comparison. There is a re-design process in glass block holder and blocks of an automation machine which is used in glass production indust...
Article
This study analyzes the forming principle of spur gears with asymmetric teeth profile by rack-type and pinion-type cutters. Mathematical models of generating and generated surfaces manufactured by generating-type cutters are given. Asymmetric gear tooth is also considered. A computer program is developed to display computer graphs of the spur gears...
Article
Based on gear geometry and generating mechanism with gear-type shapers, this paper studies the computerized tooth profile generation of involute gears. Generating and generated surfaces are obtained by using vector analysis, differential geometry, matrix transformation, and meshing equation. Trochoidal envelope traced by the cutter during generatin...
Article
A pinion-type shaper cutter is considered as the generating tool for the generation of the gear, and a mathematical model of spur gears with asymmetric involute teeth is given according to the gearing theory. The equations of the profile of the cutter, the principle of coordinate transformation, the theory of differential geometry, and the theory o...
Article
This paper studies the computerized tooth profile generation of involute helical gears cut by rack cutters with asymmetric teeth. The asymmetry means that different pressure angles are applied for driving and coast sides, respectively. Based on the theory of gearing and the geometry of straight-sided rack cutter, a complete mathematical model of as...
Article
Full-text available
Rectangular, thin plates are common structural elements employed in many engineering applications and are subject to a wide variety of excitations, including acoustic excitations. This article analyses the deflection of an isotropic rectangular clamped thin plate. An exact solution of the governing equation of the problem is given in the form of a...
Article
Full-text available
This paper gives a mathematical model for spur gears with asymmetric involute teeth based on the gear theory and generating mechanism. The equations of designed profile of rack cutter with asymmetric teeth, the principle of coordinate transformation, the theory of differential geometry, and the theory of gearing are applied. Trochoidal envelope tra...
Article
This paper studies the equations of rack cutters for generating helical gears with involute teeth. By applying the equations of designed profile of rack cutter, the principle of coordinate transformation, the theory of differential geometry and the theory of gearing, the mathematical models of involute helical gear are given. Furthermore, a compute...
Article
Full-text available
Hooks are used to safely handle and lift the loads in cranes. The optimisation of hooks with appropriate selection of shape and material enables the increase of value of loading capacity. In this study, the application of curved beam theory to the simple hooks, which are used as a load handling element in cranes and hoisting machines, is presented....
Article
Full-text available
The facilities of finite element method in modeling provide to apply in the analysis of the gear tooth stresses. In this study, what should be taken into consideration for establishing the proper finite element model of spur gear for contant simulation. Finite element model of gear tooth that allows the examination of tooth root stress of a gear pa...
Article
Full-text available
Finite and boundary element methods are the well known and the frequently used methods of continuum mechanics. The theoretical differences and the superiorities of the techniques over each other are widely investigated in literature. In the study, roller chains which are used as pulling and driving members of materials handling mechanisms are inspe...

Network

Cited By