- TITLE:
CALIBRATION OF TORQUE SENSOR PROTOTYPE USING COMMERCIAL TORQUE SENSOR
- AUTHOR(S):
B. Koprivica, M. Sucurovic, V. Vujicic, M. Bozic, M. Rosic
- ABSTRACT:
The aim of this paper is to present the measurement method, measurement setup and results of
calibration of torque sensor prototype under rotating operating conditions. By comparison with
reference torque sensor, a transfer function is determined. Comparison of the calculated and
reference torque is made and corresponding relative deviations are calculated. A proper discussion
of all the results presented is also given in the paper.
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CALIBRATION OF TORQUE SENSOR PROTOTYPE USING COMMERCIAL TORQUE SENSOR
- TITLE:
SLIP COMPENSATION OF U/F CONTROLLED INDUCTION MACHINE THROUGH EDUCATIONAL LABORATORY SETUP
- AUTHOR(S):
M. Rosić, M. Luković, M. Bjekić, B. Koprivica
- ABSTRACT:
This paper evaluates several slip compensation methods of U/f control of induction machine
(IM). At first, most attractive compensation methods are presented theoretically and analysed by
means of simulation in MATLAB/Simulink. Then, two compensation methods are implemented and
tested in real-time DSP based experimental setup with dSPACE1104 platform after witch proper
discussion of the results is given. Educational and didactical aspect of the experimental setup is
emphasized through control algorithm developed in Simulink and graphical user interface developed
in Control Desk. Users of this application can evaluate different slip compensation techniques,
modify them and easily implement and test new compensation algorithms by using an intuitive
graphical user interface.
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SLIP COMPENSATION OF U/F CONTROLLED INDUCTION MACHINE THROUGH EDUCATIONAL LABORATORY SETUP
- TITLE:
MOBILE CLIMBING ROBOTS WITH ENERGY ACCUMULATORS
- AUTHOR(S):
Y. Kuznetsov, M. Polishchuk
- ABSTRACT:
The article proposes fundamentally new designs of mobile robots of arbitrary orientation in the
technological space. The analysis of existing systems of mobile robots of arbitrary orientation is
presented. An analysis is made of the methods of coupling robots to a surface of arbitrary orientation
when performing technological operations. The difference between the proposed robot designs
consists in the presence of energy accumulators that allow accumulating the potential energy at each
previous step of the motion and transforming it into kinetic energy of motion at the next step of
displacement. Two types of batteries are proposed: in the form of mechanical springs and
compressed gas. Mathematical models of functioning of energy accumulators and calculation of their
parameters are given. The results of modeling the operation of energy accumulators in the form of
graphical and analytical dependences are given. Recommendations for improving the design of
mobile robots are suggested.
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MOBILE CLIMBING ROBOTS WITH ENERGY ACCUMULATORS
- TITLE:
THEORETICAL ASPECTS OF AUTOMATED DESIGNING SPATIAL FRAMEWORKS FOR TECHNOLOGICAL AND MACHINE-TOOLS EQUIPMENT
- AUTHOR(S):
Y. Kuznetsov, D. Dmitriev, S. Rusanov, A. Omelchuk
- ABSTRACT:
This paper describes the modern development trend for multifunctional equipment for the
complex surface cutting, many-coordinate manipulation, 3D printing and the others processing. The
paper purpose is to analyze the behavior of MPS equipment in relation to the use of typical
processing strategies (embodied in modern CAM systems) and the conformity of the output
trajectories (consequently, the final product quality) to the processing accuracy criteria, taking into
account frame layout rigidity for the general external influences (cutting forces, etc.), as well as the
establishment of an hierarchy of selected strategies. Based on the results of series of calculations, the
preliminary recommendations made.
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THEORETICAL ASPECTS OF AUTOMATED DESIGNING SPATIAL FRAMEWORKS FOR TECHNOLOGICAL AND MACHINE-TOOLS EQUIPMENT
- TITLE:
ACCURACY INCREASING METHODS OF BELT WEIGHER MASS MEASUREMENT
- AUTHOR(S):
S. Aleksandrovic, V. Damnjanovic, I. Jeftenic
- ABSTRACT:
The excavated coal mass measurement during transportation to large consumers is significant
part of conducting of a coal mining and processing technological process, as well as of the
evaluation of coal through sale. A measurement error of the order of the tenth part of percent can
impact profit enormously. In this paper, there are presented some accuracy increasing methods of
continuous belt weigher mass measurement on conveyor belts in real conditions.
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ACCURACY INCREASING METHODS OF BELT WEIGHER MASS MEASUREMENT
