In this paper, we want to show ideas on how building a Tech-Hub for boosting and strengthening the manufacturing sector in developing countries. We think this goal can be attained by creating a network composed of universities and enterprises between developed and developing countries, we think that this method will make more effective, easy and fast the process of creation of new products or processes by start-ups or enterprises of developing countries.
Vol. 4 (2016), Issue 2
Table of Contents
THE IDEA OF CREATIVE WORKSHOPS AS AN INSTRUMENT OF AN ENGINEER’S EDUCATION IN THE CREATIVITY-BASED ECONOMYpg(s) 8-10
The purpose of the paper is to identify the role of the engineer in the evolution of the market economy. This identification made it possible to present the engineer’s new roles in the creativity-based economy emerging in the first decade of the 21st century. These roles require changes in the widely understood engineering education process. We believe that one of the fundamental tools in this education should be a creative workshop, being the space for shaping innovative, enterprising and social competences, attitudes and behavior. The evolution of the engineer’s role is the natural consequence of changes taking place in the economy. More and more significance in various domains of the economy is played by information techniques, the transfer of technology, integrated management systems, the need to increase quality and productivity as well as the workplace culture. This evolution forces the need for a comprehensive education for engineers who will have a substantial impact on the level of innovativeness and competitiveness of the Polish economy.
Business Intelligence is set of techniques and tools for acquisition and transformation of raw data into meaningful and useful informations. Multicriterial diagnostic is approach to obtain real status of machining proces just in time and produce a big group of raw data. We want to prepare application business intelligence tools in multicriterial diagnostic process to obtain results of diagnostic process and find "hiddenly" influence the result.
It was developed, studied, manufactured and tested new designs of multistage gearboxes on the two shafts with cylindrical gears, providing virtually unlimited value ratios. This reduces metal consumption, improved reliability and efficiency by the eliminating in the mechanical system of the intermediate shafts and their support units, to provide a set of agreed most effective technical solutions and create new machines and units at the level of the best world samples.
Solution of gas-dynamics problems containing different fine structures (shock waves, boundary layers, traces, jets, etc.) as well as areas within which the flows are described by different models of turbulence by traditional grid methods is quiet difficult. These tasks are encouraged to address, using neural network technology in the analysis and grid-analytical form by stochastic optimization. The proposed method is demonstrated on the problems of mixing jets. Numerical experiments have shown several advantages of this approach: reducing the cost of computer time, good accuracy, the connection of patchy pattern of flow in a single unit.
Creation of different types of simulations of moving mechanisms with involved elements as gears is widespread. Depending on the specific needs different techniques which enable the accomplishment of the assignment are applied. Of particular importance is the selection of suitable software system that contains the necessary tools, functional qualities, set of features for automating the drive mechanisms, simulations and animations. Furthermore, it is important to determine the accessibility to such resource. Under these conditions a very good solution is the system with open source Blender.
INNOVATIVE SYSTEM OF INTERACTION BETWEEN THE DRIVER AND VEHICLE. THE FANCI PROJECT WITHIN EUROPEAN COMMISSION’S HORIZON2020 FRAMEWORK PROGRAMpg(s) 21-23
The system described in this article has been developed within the consortium of project FANCI (Face and body Analysis Natural Computer Interaction) project. One of the main scope of the project is to give a better support to the driver’s capabilities using some of the most advanced technologies in the field of intelligent user sensing methods, including eye tracking, face analysis, emotion recognition, intention & authentication, voice tone analysis, hand gesture recognition and head gesture & pose analysis. All these technologies will be integrated in a unique platform which is always-on, real time, low consumption and low cost. The information collected by this platform will be used as input of smart user intention or distraction estimation and system reaction methods, supplying visual (HUD, etc.), voice and haptic feedback as well as autonomous system actions.
This paper has presented chaos synchronization in the Duffing system using the backstepping approach. Backstepping approach consists of parameters which accept positive values. The parameters are usually chosen optional. The system responses are differently for each value. It is necessary to select proper parameters to obtain a good response because the improper selection of the parameters lead to inappropriate responses. Genetic algorithm can select appropriate and optimal values for the parameters. GA by minimizing the fitness function can find the optimal values for the parameters. This selected fitness function is for minimizing the least square error. Fitness function forces the system error to decay to zero rapidly that it causes the system to have a short and optimal setting time. Fitness function also makes an optimal controller and causes overshoot to reach to its minimum value. This hybrid makes an optimal backstepping controller.
The small and efficient Stirling electrical coolers, which recently appeared on the market, are opening the wide perspectives for the development of precise spectrometric equipment based on semiconductor detectors for nuclear radiations cooled by innovative cooling systems. The development of such equipment is impossible without efficient computer software packages, intended for the equipment design, simulation of different solutions and preparation of design drawings and/or technological documentation. The greatest problem at the development of cooling systems based on Stirling electrical coolers is their acoustic vibrations, which impact the spectrometric performance of semiconductor detectors. Recent results of computer design of precise spectrometric equipment with Stirling electrical coolers for laboratory, field and space applications are presented.
Electronic assembling is strongly automated. In 1980 the use of SMD technology for electronic assembly began on a mass scale. This technology is currently used in more than 90% of the cases. It requires a precise passing of SMD components so that it can assemble with high speed and precision. The technology is hardly applicable for non-standard component such as contact components. In the production of flame detectors by the firm of “UniPOS” non-standard contact components are used. These components have to be positioned and soldered precisely because after that there will be no opportunity for automated assembling of the final products. At first these components were put by hand and they were soldered by SMD technology. This led to a lot of labor expense, a low quality and a lot of rework, which made the products more expensive. By a vibration and a specially created strip for leading and positioning the contact elements conditions for automated SMD assembly were created. This enabled a large decrease in the prime cost of the products and an increase in the productivity of the whole production.
There were considered physical preconditions of appearance of dispersed particles activity in the process of the high molecular matrix modifying. The existence of a non-linear function S(r) = f (r) defining the dependence of the parameters of the characteristic physical properties of the particle of its geometrical parameters was shown. The expediency of use as modifiers dispersed particles with developed morphology of the surface layer, which provides a special energy state, was shown. Methodological approaches the optimum choice of effective modifiers while creating functional composites were developed. Practical applications of the developed approaches were exemplified.
This research paper demonstrates the use of experimental problem based learning tasks which students of computer science and information technology study programs realized through a semester in physics study course. In this course students had to master how to use several sensors and how to connect them to Arduino and acquire proper measurements and save them in a memory card. Students admit that in most of the experiments using Arduino as a data logger gives advantages to more easily deal with experimentation. Students appreciate that this kind of mastering physics is more related to their specialty and future work. It becomes more significant to use measuring devices not only in laboratories but also in different environments where specific data acquisition systems are necessary. Therefore with this teaching method students realize the real life needs and conditions.
For the purposes of testing tribological characteristics of the stainless steel X20Cr13 designed for the parts of process industry plants for the production of sunflower oil, test samples were made and heat treatment by improving on different hardnesses was performed. Final machine processing of the samples was performed out by grinding and polishing. This way, the different characteristics of the surface layer and the different surface topography were achieved. The paper presents the results of the impact of the hardness on characteristics of the stainless steel X20Cr13. By examining the resistance to the adhesion wear it was concluded that the higher wear was on the test samples which have been in the raw condition and who were also loaded by higher forces. Therefore, the quality of the surface wear greatly affects the surface roughness and the coefficient of friction.
Main purpose of the paper is to present high-response hydraulic linear drive, which is controlled with new digital piezo valve and where the new position transducer is integrated as a part of hydraulic cylinder. The new linear drive has great potential for the use in modern adaptive position control systems integrated into the smart machines. Hydraulic digital piezo valve with main static and dynamic characteristics as well as its functionality is presented in detail. The main static and dynamic characteristics of digital piezo valve which influence directly on the linear drive performance are high resolution of the volume flow rate and high response of the valve. Beside valve characteristics the new integrated position transducer, the digital controller and control method, presented in the paper, have major impact on linear drive performance. At the end of the paper the step response and position resolution of the hydraulic linear drive controlled with the new digital valve is shown and compared with the results of reference hydraulic drive controlled with high response proportional valve.
This work implements for the first time a dimensional qualification procedure for an open access 3D printer, the authors propose a new methodology to measure the prototype part as a mean to achieve the qualification procedure. Experimental results are compared with the specifications of the designer from a Fused Deposition Modelling (FDM) 3D printing. The quality of the machine recommended by the manufacturer and data are used to obtain its qualification. Then, this work aims to evaluate the quality of the machine through a comparison between the design’s data and the measurements taken from the prototype part (the piece test). So, the results have confirmed and validated the dimensional quality of the machine that was randomly taken from a series of commercial printers.