- Type of paper
: Paper in journal
Title: Hydrostatic Axial and Radial Bearings with Real Volume
Flow Distributor
- Authors:
- Obsieger, Boris (69894)
- Obsieger, Josip (33934)
Journal: Konstruktion
Number: 2
ISSN: 0720-5953
Volume: 45
Year: 1993
Pages: from 48 to 52
Number of references: 3
Language: njemački
Summary: Hydrostatic axial and radial bearings are equipped
todayessentially with a constant resistance laminar damper.Realisations
with turbulent-laminar and upon pressure-dependentresistors are unusual.
Design of these bearings is not dubioustoday thanks to comprehensive
literature and accumulatedexperience. This paper presents a less exploited
idea ofhydrostatic bearing design with real volume flow distributor
anddiscusses its advantages over bearings with constant laminarresistor.
First the principle is explained on simple axialbearings, subsequently the
application of volume flowdistributors on radial bearings is described,
then lastlycompared to bearings with laminar resistor.
Keywords: Hydrostatic bearings, Volume Flow Distributor
- Type of paper
: Paper in journal
Title: Temperature Flash Minimization of the Standard Involute
Toothing
- Authors:
- Obsieger, Boris (69894)
Journal: Zbornik Tehničkog Fakulteta Rijeka
Number: 1
ISSN: 0353-281
Volume: 13
Year: 1993
Pages: from 63 to 72
Number of references: 4
Language: hrvatski
Summary: The expressions for calculating a temperature flash in
themeshing zone of the gears with standard involute toothing, inwhich the
influence of tooth profile geometry is separated fromthe influences of gear
size, load, applied lubricant and teethflank surface quality are
etablished. The obtained expressionsare used in researching a temperature
flash dependence of theprofile shifting factors. Optimal shifting factors
that minimizeflash values for gear pairs with different teeth number
anddifferent transmission ratio are found.
Keywords: Gear transmission, Involute gear, Temperature flash
- Type of paper
: Paper in journal
Title: Tip Interference by Generating Shaping of Internal Gears
to Whole Deppth
- Authors:
- Obsieger, Josip (33934)
Journal: Zbornik Tehničkog Fakulteta Rijeka
Number: 1
ISSN: 0353-281
Volume: 13
Year: 1993
Pages: from 73 to 82
Number of references: 3
Language: hrvatski
Summary: By generating cutting of internal gears or almost whole
depth,with previous radial feeding into the gear without rolling,during
each return stroke of the shaping process withcorresponding radial
displacement away from cutting zone, therubbing between the cutter and gear
blank can occur.
The complications exist by the fact that, during shaping process,the tooth
spaces of the gear have of course not yet been cut totheir final shape.
It is explained for any particular gear and cutter thecalculation of the
angle of displacement direction which willeliminate the rubbing.
Keywords: Gearing, Internal Toothing, Rubbing
- Type of paper
: Paper in journal
Title: Determination of Involute Cylindrical Gear Geometry Based
on the Sliding Power Loss Minimum
- Authors:
- Križan, Božidar (23674)
Journal: Strojarstvo
Number: 3
ISSN: 0562-1887
Volume: 34
Year: 1992
Pages: from 105 to 108
Number of references: 7
Language: hrvatski
Summary: A geometrical sliding friction loss factor for
involutecylindrical gear mesh has been defined. This factor comprises
theinfluence of the magnitude and shape of the toothing on slidingpower
loss. Using a computer program, optimal addendummodification factors that
give a minimal geometrical slidingfriction loss factor, i.e. minimal
sliding power loss can becalculated, which is of significant importance for
highly-loadedgears at slow and moderate speeds. The program also enables
thecomparison of different gear pairs in order to minimize thesliding
losses.
Keywords: Cylindrical Gears, Friction Loss, Involute Toothing, Optimization, Sliding Loss
- Type of paper
: Paper in journal
Title: Stress Correction Factor of Spur Gear Tooth Root
- Authors:
- Marunić-Belulović, Gordana (29164)
Journal: Strojarstvo
Number: 6
ISSN: 0562-1887
Volume: 34
Year: 1992
Pages: from 229 to 232
Number of references: 7
Language: hrvatski
Summary: Summing up the number of stress calculation results
realised bymeans of the boundary element method, approximation formulae
arederived for the calculation of stress correction factor relatedto
geometric features of spur gear tooth root fillet.Distributions of stress
correction factor along the tooth rootfillet are compared with the stress
correction factor changedetermined by ISO and Wilcox proceedings.
Keywords: Approximation Formula, Spur Gear, Stress Correction Factor, Tooth Root Fillet
- Type of paper
: Paper in journal
Title: Modeling Criteria for Boundary Element Method Spur Wheel
Tooth Analysis
- Authors:
- Marunić-Belulović, Gordana (29164)
Journal: Strojarstvo
Number: 3
ISSN: 0562-1887
Volume: 34
Year: 1992
Pages: from 179 to 181
Number of references: 3
Language: hrvatski
Summary: The results of numerous spur gear root state
stressinvestigations have been the basis for the definition of optimalgear
model for Boundary Element Method tooth analysis. The gearmodel related to
the influence of adjacent teeth upon stress isproposed. The recommendations
for constraint conditions for gear tooth model and type and number of
elements for boundarydiscretisation are given.
Keywords: Boundary Element Method, Modeling, Spur Wheel, Stress Analysis
- Type of paper
: Paper in journal
Title: Distribution of Addendum Modification Coefficients Sum for
Involute External Straight Toothing
- Authors:
- Križan, Božidar (23674)
Journal: Strojarstvo
Number: 6
ISSN: 0562-1887
Volume: 34
Year: 1992
Pages: from 233 to 237
Number of references: 9
Language: hrvatski
Summary: A survey of the addendum modification coefficients
sumdistribution methods for involute external straight toothing hasbeen
given. The obtained values of the optimal addendummodification coefficients
have been compared in order to analysethe influence of the distribution
method on gear strength andsliding friction losses.
Keywords: Addendum Modification Coefficient, Involute Toothing, Sliding Friction Losses
- Type of paper
: Paper in journal
Title: Exact Calkulation of Chordal Thickeness at Helical Gears
and Helicoid Rotors
- Authors:
- Obsieger, Boris (69894)
Journal: Zbornik Tehničkog Fakulteta Rijeka
Number: 1
ISSN: 0353-281
Volume: 12
Year: 1992
Pages: from 93 to 100
Number of references: 5
Language: hrvatski
Summary: Exact calculation of chordal tooth thickeness and the
position ofthis chord are presented. In accordance with this procedure
themathematically exact chordal tooth thickeness at helical
gears,cylindrical worms and similar rotors with a small number of teeth(up
to z=1) and the angle of this chord can be estimated. It wasfound that a
similar procedure prescribed by DIN 3960 give as arule too big errors when
applied on helical gears with z<=6.
Keywords: Helical Gears, Helicoidal Rotors, Chordal Tooth Thickeness
- Type of paper
: Paper in journal
Title: The Hydrostatic Thrust Bearings with Laminar Dynamic
Dampers and Linear Characteristic
- Authors:
- Obsieger, Josip (33934)
- Cvitković, Jasna (160654)
Journal: Zbornik Tehničkog Fakulteta Rijeka
Number: 1
ISSN: 0353-281
Volume: 12
Year: 1992
Pages: from 101 to 114
Number of references: 3
Language: hrvatski
Summary: The papers deals with the hydrostatic thrust bearings with
thelaminar dynamic dampers (LDP), with different damping ratio andthe
corresponding characteristics. The comparison between thesebearings and the
bearings with static (constant) dampers ispresented.
Keywords: Thrust Bearings, Damper
- Type of paper
: Paper in journal
Title: Thermo-Hydrodinamical Calculation of Cylindrical Journal
Bearings
- Authors:
- Obsieger, Josip (33934)
- Siminiati, Dubravka (148596)
Journal: Zbornik Tehničkog Fakulteta Rijeka
Number: 1
ISSN: 0353-281
Volume: 12
Year: 1992
Pages: from 115 to 130
Number of references: 7
Language: hrvatski
Summary: Theoretical and practical foundation for calculation
ofthermo-hydrodinamical (THD) condition are presented. For knownbearing
geometrical parameters, operating conditions, used oiland the series of
standard oils respectively, operationtemperatures, oil film thickeness as
well as friction losses canbe rationaly and reliably calculated.
Keywords: Journal Bearings, Lubrication, Oil Film Thickenss
- Type of paper
: Paper in journal
Title: Some Properties of the Non-Involute Gearing Defined by
Arc-Shaped Path of Contact
- Authors:
- Orlić, Željko (34213)
Journal: Zbornik Tehničkog Fakulteta Rijeka
Number: 1
ISSN: 0353-281
Volume: 12
Year: 1992
Pages: from 183 to 192
Number of references: 3
Language: hrvatski
Summary: In this article a comparison of some properties of
thenon-involute and involute gearing is described. The tooth
profilegeometry is uniquely defined by the arc-shaped path of contact.The
gears manufactured by the same rack cutter have theconcave-convex mesh. The
result of enlarged reduced radius ofcurvature have as a consequence reduced
Hertzian pressure andbetter lubrication conditions. The disadvantages of
the abovementioned non-involute gearing are lower transverse contact
ratioand great sensitivity to the center distance accuracy.
Keywords: Gears, Non-involute Gears, Geometry of Gearing
- Type of paper
: Paper in journal
Title: Basic Principles for Designing Machine Parts and Units
- Authors:
- Križan, Božidar (23674)
Journal: Zbornik Tehničkog Fakulteta Rijeka
Number: 1
ISSN: 0353-281
Volume: 12
Year: 1992
Pages: from 307 to 316
Number of references: 3
Language: hrvatski
Summary: This paper explains the basic principles which should be
followedby the designer when designing machine parts and units. Makinguse
of these principles will improve the functionality of theproduct or
simplify the production.
Keywords: Design Principle, Machine Part, Machine Unit
- Type of paper
: Paper in journal
Title: Stress Correction Factor of Thin Rimmed Gear Tooth Root
- Authors:
- Marunić-Belulović, Gordana (29164)
Journal: Zbornik Tehničkog Fakulteta Rijeka
Number: 1
ISSN: 0353-281
Volume: 12
Year: 1992
Pages: from 263 to 272
Number of references: 5
Language: hrvatski
Summary: Tensile root stress of thin rimmed spur gears determined by
meansof boundary element method are base for the calculation of
stresscorrection factors. The change of stress correction factors along the
tooth root fillet and the influence of rim thickness ontheese factors are
examined.
Keywords: Spur Gear, Stress Correction Factor, Thin Rim
- Type of paper
: Paper in journal
Title: Influence of Rim Thickeness upon Maximum Sress Positions
of Internal Gears
- Authors:
- Marunić-Belulović, Gordana (29164)
Journal: Zbornik Tehničkog Fakulteta Rijeka
Number: 1
ISSN: 0353-281
Volume: 13
Year: 1993
Pages: from 237 to 246
Number of references: 3
Language: hrvatski
Summary: Tooth fillet and root stresses of internal spur gears fixed
orsupported by different methods have been calculated and measured.It has
been clarified the influence of rim thickeness, number ofteeth and
supporting conditions upon then previosly mentionedstresses and the
position of maximum stresses has beenillustrated.
Keywords: Internal Spur Gears, Maximum Stress, Thin Rim
- Type of paper
: Paper in journal
Title: Scoring Safety of Involute Cylindrical Gears
- Authors:
- Križan, Božidar (23674)
Journal: Zbornik Tehničkog Fakulteta Rijeka
Number: 1
ISSN: 0353-281
Volume: 13
Year: 1993
Pages: from 323 to 332
Number of references: 11
Language: hrvatski
Summary: The paper defines the phenomenon of scoring on steel gears
andthe relevant criteria of controlling. For theintegral-temperature
procedure according to the German standardDIN 3990 formulae and instruction
for scoring control are given.
Keywords: Cylindrical Gears, Scoring
- Type of paper
: Paper in journal
Title: Experimental Determination of Contact Pressure of
Conformic Cylindrical Bodies
- Authors:
- Siminiati, Dubravka (148596)
Journal: Zbornik Tehničkog Fakulteta Rijeka
Number: 1
ISSN: 0353-281
Volume: 13
Year: 1993
Pages: from 135 to 144
Number of references: 1
Language: hrvatski
Summary: This paper analyses the experimental determination of
maximalcontact pressure of conformic cylindrycal bodies by means
ofphotoelastical models. The obtained values are compared with thevalues of
maximal contact pressure according to the Hertz theory.Ranges of curvature
radii ratio of concave-convex contact ofcylindrical bodies in which the
Hertz theory can also be applied,are also determinated.
Keywords: Contact Pressure, Conformic Cylindrical Bodies
- Type of paper
: Paper in journal
Title: Systematisation of Instructions for Correct Machine Design
- Authors:
- Križan, Božidar (23674)
Journal: Zbornik Tehničkog Fakulteta Rijeka
Number: 14
ISSN: 0353-281X
Volume: 14
Year: 1994
Pages: from 43 to 50
Number of references: 9
Language: engleski
Summary: To avoud a diversity of the instructions for the correct
embodiment design in the field of mechanical engineering, a proposal for
the systematisation of these instructions is given. The instructions can be
classified in the following categories: general principles, principles of
design, rules of design and guidelines for design. The systematisation is
made according to the universality of the instructions and the design area
they are related to: the functional or technological correctness of the
technical product.
Keywords: design, design principles, design rules, design guidelines
- Type of paper
: Paper in journal
Title: Diminution of the Fuel Oil Consumption by Means of Ship's
Reduction Gears Optimization
- Authors:
- Križan, Božidar (23674)
Journal: Zbornik radova Pomorskog fakulteta Rijeka
Number: 8
ISSN: 1330-ZPFA
Volume: 8
Year: 1994
Pages: from 133 to 139
Number of references: 9
Language: hrvatski
Summary: The paper deals with the possibility of a diminution in the
fuel oil consumption by means of ship's reduction gear geometry
optimization. A computer programme has been developed in order to calculate
gear's optimal addendum modification factors. Such optimized gears will
have the least sliding power losses which are dominant in ship's gearing.
Keywords: addendum modification factor, gear, optimization, ship's gearbox
- Type of paper
: Paper in journal
Title: Some Considerations about Design Principles, Rules and
Guidelines
- Authors:
- Križan, Božidar (23674)
Journal: Proceedings of ICED 95 - WDK 23
Number: 23
ISSN: ISBN-3-85
Volume: 2
Year: 1995
Pages: from 696 to 697
Number of references: 6
Language: engleski
Summary: To avoid a diversity of instructions for correct embodiment
design in the field of mechanical engineering, a proposal for the
systematisation of these instruction is given. The instructions can be
classified in the following categories: general principles, principles of
design, rules of design and guidelines for design. The systematisation is
made according to the universality of the instructions and theire relevance
to the functional or technological correctness of the technical product.
Keywords: design, design principles, design rules, guidelines for design
- Type of paper
: Paper in journal
Title: Carrying Capacity of Gear Tooth Root
- Authors:
- Marunić-Belulović, Gordana (29164)
Journal: Zbornik radova Pomorskog fakulteta Rijeka
Number: 8
ISSN: 1330-0938
Volume: 8
Year: 1994
Pages: from 169 to 176
Number of references: 15
Language: hrvatski
Summary: The paper deals with mostly used carrying capacity
calculation methods for external involute gear tooth root. The influence of
gear geometry upon tooth stress is analysed and the proposals for including
new conceptions in the already existing stress calculation methods are
given.
Keywords: Carrying capacity, external gearing, gear
- Type of paper
: Paper in journal
Title: The Influence of the Cutter on internal Gear Tooth Root
Stress
- Authors:
- Marunić-Belulović, Gordana (29164)
- Orlić, Željko (34213)
Journal: Zbornik Tehničkog Fakulteta Rijeka
Number: 14
ISSN: 0353-281x
Volume: 14
Year: 1994
Pages: from 133 to 144
Number of references: 9
Language: engleski
Summary: The shape of internal gear tooth root fillet that strongly
affects the load capacity and rigidity of the tooth is defined by the
chosen cutting tool. In the paper the influences of some detrmining factors
of pinion cutter and the hob upon the stress on the tooth root fillet are
examined. The results of the investigations obtained by means of numerical
methods and photoelasticity experiments are compared with the results of
the most widely used load capacity calculation methods.
Keywords: Gear, internal gearing, load capacity
- Type of paper
: Paper in journal
Title: Optimization of the Transmission Ratio Distribution by two
stage Reducer
- Authors:
- Orlić, Željko (34213)
Journal: Zbornik Tehničkog Fakulteta Rijeka
Number: 14
ISSN: 0353-281X
Volume: 14
Year: 1994
Pages: from 145 to 153
Number of references: 8
Language: engleski
Summary: This paper considers optimal transmission ratio
distribution by classic two stage reducer with cylindrical gears. For soft,
no heat-treated gears more detailed manner for determining optimal
trasmission ratio is given. Offered terms assure minimal gear/reducer mass.
Keywords: Gear, Optimization, Reducer, Transmission ratio
- Type of paper
: Paper in journal
Title: Oil Squeze Film Analysis of Spherical Bearings
- Authors:
- Turkalj, Goran
- Obsieger, Josip (33934)
- Cvitković, Jasna (160654)
Journal: Zbornik Tehničkog Fakulteta Rijeka
Number: 1
ISSN: 0353-281X
Volume: 14
Year: 1994
Pages: from 75 to 82
Number of references: 7
Language: engleski
Summary: The analytical solution of oil squeze film of
axial-symetric spherical bearing, for different bushing angles, has been
shown.
As an introduction and for easier approach, the bases of this analysis heve
been given in the case of simply circular flat bearing. The analysis has
firstly been carried out in the case of constant approaching velocity of
bearing surfaces, as a hypotetical case, and then the expression for the
time of oil thickeness film decreasing has been derived in the case of
constant bearing load. This solution is very interesting and useful in real
examples of lubrification.
Keywords: Oil squeze film, spherical bearing
- Type of paper
: Paper in journal
Title: Application of the Laminar Flow Distributors with
Preresistor for the Hydrostatic Bearing
- Authors:
- Obsieger, Boris (69894)
Journal: Strojarstvo
Number: 3,4
ISSN: ISSN-0652
Volume: 36
Year: 1994
Pages: from 131 to 136
Number of references: 5
Language: hrvatski
Summary: The new type of the laminar flow distributor is proposed
for stabilization of oil films in bearings with hydrostatic lubrication.
Designs of the two variations of this simple distributors are presented.
Theoretical analyses of balance conditions and load capacity with the same
bearings with static and dynamic resistors and real volume flow distributor
shows admirable benefit of the proposed realization. The advantage of this
design and the applicability to journal bearings are explained.
Keywords: Hydrostatic bearing, Laminar flow distributor, Lubrication
- Type of paper
: Paper in journal
Title: The Minimization of Energy Losses in the Mechanical Power
Transmission Units
- Authors:
- Obsieger, Boris (69894)
Journal: Proceedings of 5th SONT '95
Number: 5
Volume: 1
Year: 5
Pages: from 93 to 98
Number of references: 5
Language: engleski
Summary: The mechanical power transmission units characterize
friction that irreversibly converts some percentage of transmitted energy
into heat, dissipating it into environment. The quantity of these energy
losses is especially significant at large units. By this reason the
minimization of energy losses takes high priority in the design of
mechanical transmission units. The paper elaborets some possibilities to
reduce energy losses in the frequently used gear transmissions. Some
significant energy loss reduction can be done by choosing the adequate
parameters for the transmission units that contain gears with standard
involute basic profile. As an alternative for the standard involute
profile, the research of the special sinusoidal basic profile is presented.
The gears with this profile produce significantely less energy loss than
gears with standard involute basic profile.
Keywords: Gear transmission, power plant, friction losses, involute gear, non-involute gear, sinusoidal gear, energy saving, environment protection
- Type of paper
: Paper in journal
Title: Postupak rješavanja niza nehomogenih sistema linearnih
jednadžbi
- Authors:
- Obsieger, Boris (69894)
Journal: Zbornik Tehničkog Fakulteta Rijeka
Number: 14
ISSN: 0353-281X
Volume: 14
Year: 1994
Pages: from 51 to 62
Number of references: 6
Language: engleski
Summary: Stated procedure gives the opportunity of a solution of
progression of non-homogenous system of linear equations that arise from
additions of the previous system. The data relevant to change of values of
coefficients that define the transfer to a new system of equations is used
immediately after computing in procedure of finding the solutions of
equations' system. Memory keeps only inter-results of computing that also
contain the solution of equation systems. Additional reduction of
computers' required memory is enabled by selective computing for only
required unknowns or its linear combinations. Described procedure can be
applied, for example, to the direct find of flow and mean pressure in the
oil film of bearing with hydrostatic or hydrodinamic lubrication, without
necessity to find the local pressures itself. The required amount of
computer storage may be even less than the one required to contain a local
pressure values calculated when standard procedure is applied. In case it
is required to compute the solutions of all unknowns, computing
interresults may be moved to computer peripheral memory, until the
application of back supstitution is completed. The required amount of
memory may be even less than the one required when the iteration is
applied. The amount of computer operations may be equal to the number of
computer operations that would be required for Gauss procedure concerning
the solution of the only last system in entire progression of equation.
Keywords: Solution procedure, linear equation system, progression, hydrostatic lubrication, hydrodinamic lubrication
- Type of paper
: Ph.D.
Title: A Contribution to Research of Carrying Capacitty and
Tribological Characteristics of Sinusoidal Toothing
Faculty: Tehnički fakultet Rijeka Sveučilište u Rijeci
Author: OBSIEGER BORIS
Date of defense: 07/14/93
Language: hrvatski
Number of pages: 165
Summary: This work elaborates geometry, meshing conditions, the
rootfillet and tooth flank carrying capacity, and tribologicalproperties of
special toothing with sinusoidal basic profile.
Calculations were performed which, among others, showed thatsinusoidal
toothing has a significantly greater carrying capacitythan involute
toothing because of concav-convex contact on topand root of teeth, and
because of smaller curvature and largercross section of root fillet.
With elastooptic measurements on large plane models a very goodcorrelation
between theoretical results and real values of stressand load distribution
was found.
It was also proved that concav-convex contact on sinusoidaltoothing causes
much better lubricating conditions thanconvex-convex contact on involute
toothing, significantly lessfriction losses, and consequently less
temperature level oncontact area.
Keywords: Gear Transmission, Non-Involute Gear, Photoelastical Analisys, EHD Lubrication, Friction Loss, Temperature Flash
- Type of paper
: Ph.D.
Title: Contribution to the Stress Research of Thin Rim Gears by
Boundary Element Mtehod
Faculty: Tehnički fakultet Rijeka Sveučilište u Rijeci
Author: MARUNIĆ-BELULOVIĆ GORDANA
Date of defense: 05/22/92
Language: hrvatski
Number of pages: 116
Summary: The stress state examination of involute, spur external
gear rootfillet is made by boundary element method. In order to
simulatereal stress state the recommendations for optimal gear
modelformation are given. The stress state on root fillet computed forgears
of various rim thickness is the basis for the determinationof that rim
thickness whose further decreasing has considerableinfluence on the stress
state i. e. of rim thickness thatdistinguishes thin from thick rim gear.
Keywords: Gear, Thin Rim, Fillet Root Stress, Boundary Element Method
- Type of paper
: M.A.
Title: The Contribution to Investigation of Pressure Distribution
in Cylindrical Bodies with Slight Difference of Radii of Curvature
Faculty: Tehnički fakultet Rijeka Sveučilište u Rijeci
Author: SIMINIATI DUBRAVKA
Date of defense: 09/19/91
Language: hrvatski
Number of pages: 105
Summary: It has been investigated the pressure distribution, contact
arcand elastical deformations in the case of interacting contact
ofcylindrical bodies with slight differencies of radii ofcurvature. The
comparison of data values with analogue valuesobtained from the Hertz's
theory has been made. The computerprogramme has been done as well.
Theoretical value of maximumpressure for parial area load is compared with
the experimentallyobtained values at photoelastical models.
Keywords: Pressure Distribution, Elastical Deformation, Contact Arc, Cylinder, Cylindical Bodies
- Type of paper
: Mentorship
Title: The Contribution to Investigation of Pressure Distribution
in Cylindrical Bodies with Slight Difference of Radii of CUrvature
Faculty: Tehnički fakultet Rijeka Sveučilište u Rijeci
Date of defense: 09/19/91
Number of pages: 105
Author: Siminiati Dubravka
Degree level: M.A.
- Type of paper
: Mentorship
Title: A Contribution to Research of Relevant Loading of Gear
Pairs on Tractors Gear Boxes
Faculty: Tehnički fakultet Rijeka Sveučilište u Rijeci
Date of defense: 09/19/91
Number of pages: 98
Author: Novak dipl. ing. str. Zdenko
Degree level: M.A.
- Type of paper
: Computer program
Title: GearPac CX 3.50
Calculation of Cylindrical Spur and Helical Involute Gears with
External and Internal Toothing
- Authors:
- Obsieger, Josip (33934)
- Orlić, Željko (34213)
- Obsieger, Boris (69894)
- Cvitković, Jasna (160654)
Odering party: Više korisnika (v. "Ostalo")
Institution depot: TFR Zavod za osnove konstruiranja
HW platform: XT/AT/386/486
Operating system: DOS
Programming language: FORTRAN
Year: 1992
Summary: Complete calculation of gears geometry, including control
ofpossible interferences by generating and meshing, controlmeasures for
selected tolerances, and calculation of filletstress and contact pressures
for selected materials are covered.
The calculation are based on standards DIN 3999 for symbols, DIN3960/3993
for geometry, DIN 3961/67 for tolerances, and DIN 3990 for stresses. The
communication with program is interactive,and allows easy optimizacion.
Results can be printed in short onesheet and detailed five sheet versions.
Drawing tables withcontrol measures are also generated. Every printout is
availablein Croatish and English. The package is supplied with
detailedmanual.
Keywords: Cylindrical gears, Involute Toothing, Geometry of Toothing, Stress Calculation, Tolerances of Toothing
Other: Program je u skladu s Pravilima Hrvatskog registra brodova,
Spliti priznat kao standardni proračun za dobivanje atesta HRB-a.
Korisnici programa:
*TFR Zavod za osnove konstruiranja (u nastavi, istraživanju i
projektiranju)
*Hrvatski registar brodova, Split
*SAS Tvornica specijalnih alatnih strojeva, Zadar
*TDM 3.maj, Rijeka
*Vulkan Dibo, Rijeka
*TDM Uljanik, Pula
*Ivan Perković, Rijeka
- Type of paper
: Computer program
Title: PROFIL 3.0
Profil Drawing od Involute Teeth on Transverse and Normal Cross
Section
- Authors:
- Obsieger, Josip (33934)
Odering party: TFR Zavod za osnove konstruiranja
Institution depot: TFR Zavod za osnove konstruiranja
HW platform: PC XT/AT/386/486
Operating system: DOS
Programming language: BASIC
Year: 1993
Summary: Program calculates and displays the real profile of one or
moregear's teeth in the transverse or normal cross section generatedby the
base profile of cutting tool defined with input data. Itincludes profile
calculation for both standard and nonstandardinvolute gears with external
and internal teeth. Generated datais suitable for profile plotting, visual
control andoptimization, and can be directly applied in defining finite
orboundary elements used in FEM and BEM analysis. Relevantgeometrical data
and stress factors calculated according to DINand MAX method completes
output. Documentation contents detaileddescription.
- Type of paper
: Computer program
Title: HYDLEZ
Selection of Oils and Calculation of THD Conditions for
Cylindrical Journal Bearings
- Authors:
- Obsieger, Josip (33934)
Odering party: TFR Zavod za osnove konstruiranja
Institution depot: TFR Zavod za osnove konstruiranja
HW platform: PC XT/AT/386/486
Operating system: DOS
Programming language: Basic
Year: 1992
Summary: The program give the calculation of
thermo-hydrodinamicalconditions for cylindrical journal bearings and
frictional losseswith selection of adequate oil, and construction of
diagrams forTHD state of bearings for selected oil and stationary
conditions.The THD diagram contains the (boundary) lines for
(minimum)constant oil film thickeness and (maximum) constant temperaturesof
bearings in ps-omega koordinates. The calculation is based onDIN 31625.
Detailed description and users manual is given inBulletin ESKON 2/92.
Keywords: Journal Bearings, Hydrodinamic Lubrication, Boundary Lines, Thermodinamic State
- Type of paper
: Computer program
Title: GearPac BX 3.0
Calculation of Straight-Tooth, Helical and Spiral Bevel Gears
- Authors:
- Orlić, Željko (34213)
- Cvitković, Jasna (160654)
Odering party: TFR
Institution depot: Zavod za osnove konstruiranja
HW platform: PC/XT/AT/386/486
Operating system: DOS
Programming language: Basic
Year: 1993
Summary: Complete calculation of bevel gears geometry
includingcalculation of fillet stress and contact pressure for
selectedmaterials are covered. The calculations are based on standardsDIN
3993 and DIN 3960 for symbols and DIN 3991 for stresses.Results can be
printed in short one sheet or in integer fivesheet version alternatively.
Drawing tables with controlmeasures are generated too. Every printout is
available inCroatian or English.
Keywords: Bevel Gears, Geometry of Toothing, Stress Calculation
- Type of paper
: Computer program
Title: Calculation of Bolted Connection
- Authors:
- Orlić, Željko (34213)
- Cvitković, Jasna (160654)
Odering party: TFR
Institution depot: Zavod za osnove konstruiranja
HW platform: PC XT/AT/386/486
Operating system: DOS
Programming language: Basic
Year: 1993
Summary: The programm enables the choice and control of carrying
capacityof the dynamic preloaded bolted connection. For the chosenstrength
classes of the bolt and bases materials the calculationsof elastic
properties of connection, the magnitude of static anddynamic components of
screw's forces and tensile and torsionalstresses in bolted connection are
given. Upon the calculatedtightening moment the static and dynamic safety
factors againstthe plastic deformations are given. The calculation is based
onVDI 2230/86 recommendations.
Keywords: Bolted Connection, Bolt, Stress Calculation
- Type of paper
: Other
Title: Preloaded Bolted Connection
- Authors:
- Orlić, Željko (34213)
- Cvitković, Jasna (160654)
Type of work: Skripta, 1992. (Str. 49)
Language: hrvatski
Summary: The paper gives recommendations for the choice and the
control ofthe bolted connection loaded by static and dynamic forces inorder
to calculate the carrying capacity. Basic caracteristics ofthe used
materials and recommendations for the choice of thefriction coefficients on
the thread and the bases are given. Thecalculation is based on VDI 2230/86
recommendation.
Keywords: Bolted Connection, Bolt, Carrying Capacity
- Type of paper
: Other
Title: Worm Drive - Principal Dimenzions and Contro of Load
Capacity
- Authors:
- Orlić, Željko (34213)
Type of work: Skripta 12/1993. (Str. 23)
Language: hrvatski
Summary: The paper gives recommendations for the choice of the worm
geardrive dimensions, the choice of the lubricating oil based uponDIN 51509
standard and the calculation of power losses.Procedures of the carrying
capacity control with regard to theheating, contact pressure control, worm
wheel tooth fillet stresscontrol, wear control and the worm shaft
deformation controls areexplained.
Keywords: Worm Gear Drive, Geometry of Gearing, Carrying Capacity
