Author: Prof. Dr. Ertuğrul Durak


Prof. Dr. Ertuğrul Durak

Journal bearing design criteria IV - Bearing clearance

Journal bearing design criteria IV - Bearing clearance

Elements that carry power transmission elements such as gear wheel, belt and pulley or chain wheel mechanisms are called shafts. Shafts that assume this carrying task are ...

11.11.2019 12:02:00
Corner Posts     Prof. Dr. Ertuğrul Durak     69
Journal bearing design criteria III / Oil galleries

Journal bearing design criteria III / Oil galleries

The main purpose of lubrication is to form an oil film between the two surfaces, which has sufficient thickness and is resistant to operating conditions. It aims to transform the ...

2.9.2019 16:30:00
Corner Posts     Prof. Dr. Ertuğrul Durak     361
Journal bearing design criteria - II

Journal bearing design criteria - II

Bearing selection and design processes can be summarized as: -Selecting the optimum bearing type, -Calculating bearing sizes that will ensure safety, -Reviewing the performance ...

21.8.2019 16:33:00
Corner Posts     Prof. Dr. Ertuğrul Durak     631
Journal bearing design criteria - I

Journal bearing design criteria - I

In general, design is a production process that aims to find a solution for a specific function. Several alternative solutions can be offered to solve the problem in design ...

30.5.2019 11:52:00
Corner Posts     Prof. Dr. Ertuğrul Durak     800
Plant-oil-based lubricants - II

Plant-oil-based lubricants - II

Technical terms such as biodegradable, bio-based, environment-friendly, recyclable, renewable, non-toxic, green, etc. are frequently used in the industry as well as in our daily ...

1.4.2019 17:16:00
Corner Posts     Prof. Dr. Ertuğrul Durak     1702
Lubricants and lubrication from mechanical engineering students’ perspective

Lubricants and lubrication from mechanical engineering students’ perspective

Mechanical engineering is a field of engineering which studies, researches and provides training about the construction, manufacturing, manufacturing planning, assembly, ...

1.12.2018 17:41:00
Corner Posts     Prof. Dr. Ertuğrul Durak     1901
Plant-based lubricants - I

Plant-based lubricants - I

PETDER’s 2017 Sector Report reveals that 51 percent of the lubricant consumption in Turkey is composed of automotive lubricants, whereas 40 percent is industrial lubricants, ...

13.11.2018 11:54:00
Corner Posts     Prof. Dr. Ertuğrul Durak     1574
Hydraulic oils and oil additives

Hydraulic oils and oil additives

Hydraulic fluid selection is very important because today's hydraulic systems operate at harsh conditions consisting of high pressure, high temperature and high speed. An ...

1.6.2018 16:53:00
Corner Posts     Prof. Dr. Ertuğrul Durak     7150
2D nanomaterials as lubricant additives

2D nanomaterials as lubricant additives

Heat generation and distribution during friction can lead to a large amount of energy loss. Friction-related wear can lead to serious problems such as damage to surfaces, reduced ...

1.4.2018 16:34:00
Corner Posts     Prof. Dr. Ertuğrul Durak     4122
Additive types

Additive types

Today, extensive research continues to achieve high performance in lubricants, because the properties of current lubricants in today's technology are still not perfect. Lubricant ...

1.2.2018 16:52:00
Corner Posts     Prof. Dr. Ertuğrul Durak     1196
Additive types 3

Additive types 3

Detergent and dispersant additives: Detergent and dispersant additives are designed to control the carbon and oxidation, sludge, varnish, lacquer and other solid materials that ...

10.10.2017
Corner Posts     Prof. Dr. Ertuğrul Durak     4422
Additive types

Additive types

Oxidation inhibitors: Oxidation reactions are exothermic and very complex reactions. Oxidation in lubricants that contain paraffinic and naphthenic hydrocarbons may lead to the ...

23.8.2017
Corner Posts     Prof. Dr. Ertuğrul Durak     4988
Additive types

Additive types

Freezing Point Depressants (FPD): Hydrocarbons, which form the basis of lubricating oils, tend to solidify at low temperatures. Such additives are high molecular weight polymers. ...

1.6.2017
Corner Posts     Prof. Dr. Ertuğrul Durak     1307