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The paper presents the origin and general idea of a didactic project realized at the Department of Mechatronics at the Silesian University of Technology in Gliwice, Poland. Technical goal of the project is to design and examine a prototype of electrical fuse activated by Shape Memory Alloy (SMA) wire. Project is realized at the University by a schoolboy of a secondary school under the supervision...
This paper presents the design and performance evaluation of a meso-scale electromechanical fluid pump. A prototype was designed and fabricated using Polycarbonate for the housings and controlled by sequential pulsing of channel piston and valve coils. The pumping concept is based on reciprocating a hard magnet acting as a piston in a circular channel, and synchronizing this movement with two electromagnetically...
Developing sensors or sensor systems requires precise knowledge of their technical properties. On the one hand the three-dimensional sensitivity of a sensor is of interest. On the other hand the transmission characteristics of transceiver systems, that transfer information or energy, depending on the distance between transmitter and receiver are of particular interest. Measurements can be useful if...
To respond to the social demand for professional workforce development for the optimized industrial workforce, college education in Korea is adapting the National Competency Standards (NCS). Education and training based on NCS is different from the existing structure in that the focus has shifted from understanding, knowledge and skills related to a particular job; to the enhancement of capabilities...
Quadcopters have become a mass consumer product thanks to their ability to transport and deliver different loads, from online book orders to first aid kits, although their primary market comes from the hobbies and entertainment enthusiasts. In academia, quadrotor helicopters are also a great platform for teaching flight mechanics, control principles and even mechatronic systems design. One way to...
Many applications in industrial robotics such as applying adhesives or cutting require movements of the tool in the process relevant speed. The path in space is programmed by the user as sequence of Point-to-point motion commands, linear and circular motion commands. But in general the tool has to stop in the transition between two path segments. If the programmer use spline or fly by commands, it...
This paper describes how a standard 6-DOF industrial robot is equipped with additional hard and software to enable the machine to play chess with a human chess player. For automatic interaction with human player, these moves were recorded by a webcam and automatically analyzed. No manual (keyboard-) input is necessary. One goal of the work is that the implementation of the chess playing robot should...
In this work dynamic couplings were presented, which occur in the kinematic chains of branched positioning systems, e.g.: medical robots da Vinci. Replacing torque generated by driveline by gravity force allows authors to treat branched manipulators as a branched pendulum, in which interactions between the different branches occur. Basing on the methodology of mathematical modeling of robots' manipulators,...
Additive manufacturing is a growing method for the industrial production. New methods have been developed and in particularly methods for the production of metal parts to a minimum cost. Innovative approach is the use of a MIM technique for 3D printing which requires a suitable kinematics for its movements. The main purpose of this article is the kinematic optimization of a 5Dofs PKM robot for additive...
A brushless DC (BLDC) motor with a magnetically levitated rotor was developed as a teaching tool for universities. The BLDC motor is designed as an axial field motor with the motor windings placed on a printed circuit board. Six reluctance actuators are mounted around the rotor and stabilize the rotor in the remaining five degrees of freedom (DOF). Because of its simple and low cost design, it is...
In this paper, the modeling of wheeled inverted pendulum systems is revisited. Such mobile robots are widely used in research and education to explore and exemplify the control of inherently unstable, under-actuated systems. But despite of the numerous studies in this field, many authors apparently fail to derive the model equations adequately as shown by means of the dynamical model of a planar wheel-rod...
Arrayed micro actuators are increasingly used with various kinds of driving methods, especially to realize planar conveyance tasks. Using this concept, the flexible micro electromagnetic conveyor system presented in this paper has been developed. The presented system consists of arrayed elementary cells which can move a mobile pallet placed on its top side. To ensure long range motion flexibility,...
The paper deals with the determination of 3D gait patterns of the lower limbs and the pelvis as a result of experiments in standardized scenarios. In the experimental setup seven synchronized Xsens MTw inertial measurement units (IMU) are applied to the lower limbs and the pelvis of the subject. The sensors provide filtered and strapped down samples of acceleration, angular velocity and magnetic rate...
The paper presents a new approach for change detection in vibration signals of a rotating machine using time-frequency information content, making use of the short-term time-frequency Rényi entropy and a segmentation algorithm, based on maximum a posteriori probability (MAP) estimator. The segmentation algorithm operates on Rényi entropy, as a new space of decision. This approach enables more robust...
In the recent past, lower-limb prostheses technological advancement mostly concerned the possibility of integrating ever smaller and more powerful electronic components instead of new materials and topologies. For instance, the electronic knee prosthesis guarantees maximum yield by mean of sensors and actuators that allow to adjust in real time the characteristics and thus the response of the device...
The purpose of this paper is to present simplified graphical representation of the missile velocity for the hybrid electromagnetic launcher with pneumatic assist. The presented simplified graphical method is oriented at describing clearly influence of supply data upon velocity of the missile in the form of the so-called control strategy trees in consecutive modules of the hybrid launcher: air-gun,...
There is a tailor-made Manufacturing Execution System presented in the paper. The system has been developed and implemented practically by authors. The general idea behind it is explained firstly. A generic structure of Factory Automation system was introduced. Siemens Simatic S7-300 PLC controllers were used to implement the idea. The MES software was written in C# software. The approach for PLC...
Ever since the introduction of the new machinery directive MRL2006/42/EG, the manufacturers of mechatronic devices are forced to only produce safe machinery and prove their safety with a Safety Analysis. In general, only safe machinery may be introduced on the European market. The ongoing transition to a flexible manufacturing process, mainly in the context of Industry 4.0, is leading to new communication...
In teaching engineering mechanics, kinematics of rigid bodies represent a typical topic that poses the challenge of inspiring students for rather theoretical contents which are often perceived to be of little benefit in solving practical problems. To highlight the practical relevance of seemingly abstract concepts and, thus to increase student's motivation, an interactive learning unit has been developed...
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