1. PROGRAM FOR THE COMPUTER AIDED DESIGN OF BEARING
MOUNTINGS
Author: Elena Eftimie, Assistant
Content: This program calculates the properties of bearings mounted
with axial fixing in one bearing and the calculates these for mountings
with axial fixing in the both bearings, i.e. the ‘X’ mounting and the ‘O’
mounting. The program includes a database which contains most Romanian-type
standard bearings. Depending on the desired mounting, the program can select
ball bearings, radial-thrust ball bearings, radial-thrust roller bearings
or bearing arrangements consisting of two radial-thrust bearings.
2. PROGRAM FOR DETERMINING THE THEORETICAL AND
REAL POWER FOR STEERING MECHANISMS ON HALF-TRACK VEHICLES
Author: Elena Eftimie, assistant
Content: This program demonstrates the analysis of two illustrative
steering mechanisms. The first is a steering mechanism with two driving
elements, which, by fixing one element or coupling different speeds from
a gear box, gives different operating conditions. The mechanism can work
with closed-loop systems. The second mechanism comprises planetary units
and a gear box. The power details are shown on the output display in a
graphically. This program enables the kinematic and dynamic analysis for
each characteristic work regime on a half-track vehicle.
3. PROGRAM FOR DETERMINING THE ANGULAR DEFORMATIONS
OF AN UNDETERMINED STATIC SHAFT SITUATED ON THREE BEARINGS
Author: Elena Eftimie, Assistant
Content: The program calculates the angular deformation of bearings
for an undetermined static shaft as well as determining the maximum linear
deformations. It is useful for the selection of bearing type, as well as
recommending the permissible angular deformations.
4. PROGRAM FOR CALCULATING THE GEOMETRIC PROPERTIES
AND STRENGTH CHARACTERISTICS OF SPUR GEARS FOR REDUCTION GEAR BOXES
Author: Gheorghe Moldovean, PhD, Professor
Content: This program is written in Turbo Pascal and calculates the
gears required for cylindrical reduction gear boxes with two steps (cylindrical,
cylindrical-coaxial with bifurcate in the first step and/or the second
step). It uses as input data the results of a preliminary computer calculation
(carried out using a separate program) and can be adapted to suit any type
of cylindrical gear. The calculation strength is determined by applying
the ISO-DIN method.
5. SOFTWARE FOR THE PRELIMINARY GEAR DESIGN OF
TWO STEP REDUCTION GEAR BOXES
Author: Radu Velicu, Lecturer
Content: This software is written in Turbo Pascal and outputs the main
dimensions of the gears required for a wide range of cylindrical gear boxes
(common cylindrical, coaxial, optimised in first and/or second gear step).
The inputs are: power rotation at the input shaft, gear ratios on the two
gear steps and the key material type of the primary gear. Finally, a sketch
of the gear box is output.
6. SOFTWARE FOR ESTABLISHING THE CALCULUS REGIME
AND MOTOR VEHICLES TRANSMISSION GEAR DESIGN
Author: Radu Velicu, Lecturer
Content: Written in Turbo Pascal, this software is used for designing
gears for motor vehicles gear boxes. The output is a calculus regime for
the gears (calculus torque, equivalent number of cycles, equivalent rotations)
and the results from gear strength and geometric calculations (i.e. geometric
elements, elements for measurements and quality control). For gear strength
calculations the ISO-DIN method is used and the software can be used for
any other motor vehicle gear transmission systems.
7. SOFTWARE FOR PLANETARY GEAR-BOX ANALYSIS
Author: Radu Velicu, Lecturer
Content: This software is written in Turbo Pascal and establishes a
possible structural scheme for 3+1 and 4+1 step gear boxes consisting of
2 planetary units. The main inputs are the transmission ratios imposed
on the gear box. A recommended reversed structural scheme can also be obtained
for which a kinematic and dynamic analysis can be performed in each gear
step. Other outputs comprise rotational torques and power distribution
on the elements as well as the mechanical efficiency in each gear step.
An optimisation can also be performed to determine the best gear box structure.
8. SOFTWARE FOR CALCULATING THE SHAFT REQUIREMENTS
FOR 2-STEP GEAR BOXES
Author: Radu Velicu, Lecturer
Content: Written in Turbo Pascal, this software is designed to calculate
the shaft requirements for 2-step gear boxes with helical (common cylindrical,
coaxial, optimised in the first and/or second gear step) and bevel gears.
For the three shaft types (i.e., the input shaft, intermediate shafts and
output shaft) a preliminary calculation of required diameter can be made
along with those associated with stress, fatigue and deformation. The calculus
programs can be used by students who are designing gear boxes as part of
their project work.
9. SIMULATION OF THE KINEMATIC BEHAVIOUR OF SPATIAL
GUIDING LINKAGES USED FOR VEHICLE REAR AXLES
Author: Catalin Alexandru, Assistant
Content: This program incorporates a mathematical model for the kinematical
analysis, path loci and animation of a mechanism. The input data comprises
a geometric model of the mechanism with the independent parameters being
the vertical displacements of the wheel centres. The kinematical analytical
technique used for the analysis is “the characteristic points method”.
10. CAM MECHANISM SYNTHESIS
Author: Mircea Neagoe, Assistant
Content: This program is developed for cam mechanism designers to facilitate
the optimization of cam shape and to provide a graphical simulation of
how cam mechanisms work. The program is written in Turbo Pascal and also
it has an TP interface, defined by means of the objects from a Turbo Vision
environment. It allows the simultaneous selection and displaying of a library
function on the screen. The functions library can be extended and the program
can be equipped with other facilities.