SVIBOR - Project code: 2-08-354

MINISTRY OF SCIENCE AND TECHNOLOGY

Strossmayerov trg 4, HR - 10000 ZAGREB
tel.: +385 1 459 44 44, fax: +385 1 459 44 69
E-mail: ured@znanost.hr

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Project code: 2-08-354


RESEARCH AND DEVELOPEMENT OF MACHINE ELEMENTS AND POWER TRANSMISSIONS


Main researcher: OBSIEGER, JOSIP (33934)



Assistants
Type of research: applied
Duration from: 01/01/91. to 12/31/95.

Papers on project (total): 40
Papers on project quoted in Current Contents: 7
Institution name: Tehnički fakultet, Rijeka (69)
Department/Institute: Department of Machine Design
Address: Vukovarska ul. 58
City: 51000 - Rijeka, Croatia
Communication
Phone: 385 (0)51-332-844
Phone: 385 (0)51-426-162
Fax: 385 (0)51-515-403

Summary: The scoppe of research and developement: 1. Screw joints, press joints and springs 2. Sliding bearings 3. Mechanical power transnission. The contents of research: 1.1 The calculation and design of screw joints with corresponding software for caluculating and design. 1.2 The calculation of shrank fits. 1.3 The calculation of springs. 2.1 The developement of algorithm for calculating of sliding journal bearing wth hydrodinamical lubrication. 2.2 The research, developement and design of sliding bearings with hydrostatic lubrication and specialy developed flow distributors. 2.3 Research and developement of MGF journal bearings. 3.1 The theoretical and experimental research of contact pressure of conforming cylindrical bodies. 3.2 The theoretical and experimental research of toothings with special sinusoidal profil, the tooth geometry, meshing conditions, load capacity and tribological properties. 3.3 Research of tooth fillet stress with FEM and BEM especialy on toothing with thin rims. 3.4 Geometry optimalization of involute toothing with regard of friction losses. 3.5 The developement of software for cylindrical and bewel gears for calculating of geometry, load capacity and tribological conditions. 3.6 The research of mechanical properties of radial hydromotors. 3.7 The research of worm gears.

Keywords: Screw Joints, Shrunk Joints, Springs, Bearings, Lubrication, Gearing, Optimization, Software

Research goals: 1.1 The improvement and rationalisation of calculation and design of bolted fasteners. The scope is realised. 1.2 The improvement and rationalisation of tightened fasteners. The work is in course. 1.3 The improvement and rationalisation of design and calculation of springs. The work is in course. 2.1 The development of calculation of cylindrical journal bearings with hydrodynamic lubrication and their THD- state. The scope is fully realised. 2.2 The research of new possibilities for flow control of hydrostatic axial and radial bearings with real volume flow distributors. The application of these distributors shown the excellent characteristic of rigidity and power loses. 2.3 The research of segmented non cylindrical journal bearings with hydrodynamic lubrication. The work is in course. 3.1 The research of contact pressure of conformed cylindrical bodies. The work is 50% completed. 3.2 The potentiality of applications of sinusoidal tooting for gear design are accomplished and the advantages and the possibilities of these gearing are discussed. The scope is fully realised. 3.3 The discovering of rational calculation of stress in tooth fillet on gearing with thin rim are presented. 3.4 The optimisation of tooth geometry regarding to minimum friction losses is presented. 3.5 The software for rational calculation of gear transmissions and application of international standards is completed. 3.6 The optimisation of cam profiles for hydraulic motor is in course.


COOPERATION - PROJECTS




COOPERATION - INSTITUTIONS


  1. Name of institution: Hrvatski registar brodova
    Type of institution: Institution whose primary activities ar
    Type of cooperation: Occasional exchange of information
    City: 21000 - Split, Croatia

  2. Name of institution: SAS Tvornica specijalnih alatnih strojeva
    Type of institution: Economical/Production
    Type of cooperation: Occasional exchange of information
    City: 23000 - Zadar, Croatia


OTHER ACHIEVEMENTS


  1. Name: Konstrukcija naprave za ispitivanje plastičnih modela parova zupčanika na polariskopu
    Type of achievement: Instrumentation
    Authors: Obsieger Boris

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Last update: 10/10/95
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