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Željko Ivandić

College of Slavonski Brod

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Dražan Kozak

College of Slavonski Brod

Mirko Karakašić

College of Slavonski Brod

Todor Ergić

University of Osijek

Milan Kljajin

University North

Ivan Grgić

College of Slavonski Brod

Darko Damjanović

College of Slavonski Brod

Ivan Samarđžić

College of Slavonski Brod

Mato Kokanović

College of Slavonski Brod

Pejo Konjatić

College of Slavonski Brod

Tomislav Baškarić

Cooperative Institutions

College of Slavonski Brod

University of Osijek

Technical University of Košice

VSB - Technical University of Ostrava

Izhevsk State Technical University

University of Novi Sad

University of Ljubljana

Czech Academy of Sciences

University of Montenegro

Czech Academy of Sciences, Institute of Geonics

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Regeneration of a fibrous sorbent based on a centrifugal process for environmental geology of oil and groundwater degradation

Vladislav Sviatskii Alexandr Repko Dagmar Janáčová Željko Ivandić О. М. Перминова

Degradation

Environmental degradation

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Citations (5)

Design and calculation of planetary transmission with bevel gears

Tehnički glasnik (2019)

Ivan Sabo Milan Kljain Mirko Karakašić Željko Ivandić

In this paper, the design and calculation of planetary transmission with bevel gears for road vehicles is presented. It must transfer power to the wheels with the possibility that wheels can rotate at different speeds. The basic calculation of transmission is performed for the drive machine, where an internal combustion engine is chosen, and for the driven machine, which is a car, all forces of resistance are calculated so that the transmission needs to be overcome to move the car. Based on the standard ISO 23509:2016 norm, the calculation of geometry is performed for the input gear pair and it is defined as a hypoid gear pair. For the planetary transmission, a calculation of gear module for bevel gears is first performed, and after that, the geometry is calculated. The calculation of the stress for root stress and Hertz contact pressure is performed for all bevel gears in transmission.

Bevel gear

Gear train

Pinion

Non-circular gear

Automatic transmission

Bevel

10.31803/tg-20190503183526

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Application of STT welding process in bellows production

Josip Pavić Ivan Samarđžić Željko Ivandić

U radu se obrazlažu osnove suvremenog postupka elektrolucnog zavarivanja (STT postupak) u izradi dijelova kompenzatora. Za odabrani reprezentat daje se tehnologija zavarivanja uz primjenu STT postupka u kombinaciji sa drugim elektrolucnim postupcima zavarivanja (REL i EPP). Navode se i komparativne prednosti koje proizlaze iz primjene ovog suvremenog postupka zavarivanja u odnosu na tehnologiju zavarivanja koja se primjenjivala prije uvođenja STT postupka.

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The Significance of Contact Pressure Distribution on the Soft Tissue by Men Sitting

DS 30: Proceedings of DESIGN 2002, the 7th International Design Conference, Dubrovnik (2002)

Todor Ergić Željko Ivandić Dražan Kozak

A lot of investigations today are devoted to make the people life better from the ergonomic point of view. Here the magnitude and distribution of pressure by men sitting is very often the topic of biomechanical research. This paper analyses contact pressures between body and chair during sitting using experimental set-up. To this purpose the original wooden chair has been designed, fabricated and evaluated. The results of experiment are presented in the form of diagrams with maximal pressure on the ordinate and height/mass ratio on the abscissa. The goal of performed measurements on the chair is not just new design of the construction, but also determination of relevant characteristics that have influence on the pressure transfer on the soft tissue between the skeleton and chair. Here are considered anthropological parameters and biomechanical parameters.

Sitting

Biomechanics

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Određivanje nosivosti nosača staklenog panela pomoću metode konačnih elemenata

Dražan Kozak Željko Ivandić Pejo Konjatić Mirko Karakašić

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Mechatronic education at the Faculty of Technical Sciences Novi Sad

Tehnicki vjesnik - Technical Gazette (2015)

Gordana Ostojić Vukica Jovanović Dražan Kozak Željko Ivandić Stevan Stankovski

The emerging engineering field of mechatronics has caught the attention of many engineering professionals, academics and government officials in recent years, nationally and globally.The main reason for this is that many modern products are no longer purely electrical and electronic or mechanical.Moreover, they are integrated multidisciplinary products which are made from subsystems which require engineering knowledge of different disciplines.Hence, increasing number of universities is offering courses, certificates and programs at undergraduate and graduate levels in the area of mechatronics.This paper presents an educational program in mechatronics at the Faculty of Technical Sciences, University of Novi Sad, Serbia.In addition, student evaluation of the mechatronics program is presented.The conducted survey enabled faculty to gain more insight into student opinions about this program which provided valuable feedback for further program improvements.

10.17559/tv-20140225111636

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Citations (7)

Generating different constructional solutions on the hubless wheel example

IOP Conference Series Materials Science and Engineering (2018)

D Šotola Željko Ivandić Ivan Grgić

In this paper, we present evaluations of power and motion variants on the example of a motorcycle. The choice of the optimal variant is enabled by setting goals, forming a morphological matrix and evaluating particular variants. The selected characteristic elements and their combinations will give us the most appropriate solution. For the evaluation, some basic features of the motorcycle were selected with an emphasis on the hubless wheel for the further constructional and numerical models. At the end of the paper, the constructional assemblies of the hubless wheel with emphasis on design are given.

Emphasis (telecommunications)

Matrix (chemical analysis)

10.1088/1757-899x/393/1/012124

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Ultra-light telescopic crane/platform mechanisms feature analysis

Tehnicki vjesnik - Technical Gazette (2009)

Todor Ergić Željko Ivandić

Based on the research of mechanical properties of fine-granular high-strength steels and the obtained results, the design of prototype ultra-light telescopic crane was performed. The article presents the analysis results of the crane drive mechanism. The geometric synthesis of shapes and sizes of four joint was performed based on the maximum and minimum slope of each arm and on the minimum weight. Feedback of optimal shape of each mechanism's stick was implemented by the variant solutions evaluation methods. The detailed calculation of stress and strain in each mechanism's stick was performed by finite elementmethod.

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Intelektualne, obrazovne i socijalne funkcije školske djece i adolescenata s operiranom prirođenom srčanom manom

Ranka Carin Ivan Malčić Željko Ivandić

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Thread inspired 3D printed clamps for in vitro biomechanical testing

Ivan Grgić Željko Ivandić Dubravko Šotola Dražan Kozak Mirko Karakašić

In recent biomechanical testing of soft tissues, many researchers have presented the usage of different clamping techniques such as using frozen clamps, non-frozen serrated jaw clamps, a non-frozen clamp which has lateral block boards and asymmetrical teeth yaws to prevent tissues from slipping and without damaging it at high loads. In this study, for future biomechanical testing of human gracilis and quadriceps tendons, we present the usage of a 3D printing approach as a possibility for making clamps. We took the measures of the existing pneumatic jaw clamps on Shimadzu AGS-X 10 kN machine and according to the measurements, we have designed and 3D print the clamps which have different geometry inspired by the cross-sectional view of metric, trapezoidal and buttress thread, to act as extensions to existing ones and to be able to prevent tendon slipping and damaging during compression. Based on the tensile tests using porcine tendons, we report our experience. It has been shown that we can avoid expensive changes in existing equipment, buying commercially available plastic and metal materials and manufacturing it or else use frozen clamps which are complex and expensive. We have shown that using a low-cost 3D printer and cheap polyethylene terephthalate glycol (PET-G) material can lead to successful scientific work. To our knowledge, by searching available literature, there is only one similar study published during writing this paper.

Slipping

Universal testing machine

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