THE MECHANICAL DESIGN AND REALIZATION OF THE OMNIDIRECTIONAL MOBILE ROBOT ODIN

MM (Modern Machinery) Science Journal, June 2016
MATEJ GALA, VACLAV KRYS, TOMAS KOT
VSB – TU Ostrava, Faculty of Mechanical Engineering, Department of Robotics, Ostrava-Poruba, Czech Republic
 
Abstract
This article describes the process of mechanical designing for an omnidirectional mobile robot Odin. It provides an explanation of the relation between a mobile robotic stair climbing system with shaped wheels and omnidirectional wheels, which are used together in a combined locomotive system. Only a conception study of the whole system is presented. Testing of mechanical parameters and driving abilities of the omnidirectional wheels was performed on a constructed simplified chassis.There was created an experimental calculation for a flange with a clamp connection linking a 3D model. This simplified chassis was the basis of a mobile robot named Odin, which was further improved by mounting a modular manipulator Schunk on its top. The article concludes with an evaluation of the achieved progress and indicates ways of further possible development for the omnidirectional mobile robot Odin.
Keywords:mobile, omnidirectional, robot, wheel, trajectory, testing, Odin
 
Download full version of the Paper (Adobe Reader Document, 3,4 MB) 
 

TRANSFORMATION OF PRODUCT CHARACTERISTICS IN TERMS OF A MANAGEMENT SYSTEM

MM (Modern Machinery) Science Journal, June 2016
STEFAN MARKULIK1, Robert Kozel2
1Technical University of Kosice, Faculty of Mechanical Engineering, Department of Safety and Quality, Kosice, Slovak Republic
2Hakoz, s. r. o., Kosice, Slovak Republic
 
Abstract
Organizations make an effort to meet their customer’s requirements related to the products they offer. Only satisfied customers can help the company to generate profit, and profit is an important factor for the further development of the organization. The organization´s development can involve, for instance, investing in employees by creating ergonomic and safe workplaces and social environment, developing their skills, investing into the development of production facilities and lastly the product innovation. This can be achieved by quality management in the product creation phase, which is an integral part of the overall management within an organization. Various approaches are used to promote quality management in practice, such as Lean, Kaizen, Six-Sigma, etc. The utilization of the integrated management system in practice is not limited to implementing the quality requirements; it also includes proactive management of occupational safety and health and other management system requirements.
Keywords: management systems, requirements, product development
 
Download full version of the Paper (Adobe Reader Document, 1,03 MB) 
 

STUDY OF NON-AUDITORY EFFECTS OF NOISE

MM (Modern Machinery) Science Journal, June 2016
MICHAELA BALAZIKOVA, MARIANNA TOMASKOVA, MARTINA DULEBOVA  
TUKE, Faculty of Mechanical Engineering, Department of Safety and Quality, Kosice, Slovakia
 
Abstract
It is generally known that long-term and repeated exposure to noise has a negative impact on the sense of hearing. However, less is known about the fact that not only auditory organs are affected by noise. Research has shown that noise has effects on the entire organism, especially central and autonomic nervous system. Peterson et al. (1981) conducted a study using monkeys to explore the effects of long-term exposure to noise on blood pressure and auditory function. The animals’ blood pressure remained elevated even after noise exposure was terminated, while their auditory sensitivity was not decreased. The paper proposes a methodology of noise assessment, taking into consideration legislative requirements as well as non-auditory effects of noise. The methodology is applicable even in the first phase of product development.
Keywords: noise, risk, auditory noise effects, non-auditory noise effects
 
Download full version of the Paper (Adobe Reader Document, 1,3 MB) 
 
 

HUMAN – ROBOT COLLABORATION IN INDUSTRY

MM (Modern Machinery) Science Journal, June 2016
ALES VYSOCKY, PETR NOVAK
VSB – TU Ostrava, Faculty of Mechanical Engineering, Department of Robotics, Ostrava, Czech Republic
 
Abstract
Human – Robot Collaboration is a new trend in the field of industrial and service robotics as a part of the strategy Industry 4.0. Robots and the strategy itself are known under the German acronym MRK (Mensch Roboter Kollaboration) or the English acronym HRC (Human Robot Collaboration). The main goal of this innovative strategy is to build up an environment for safety collaboration between humans and robots. There is an area between manual manufacture and fully automated production where a human worker comes into contact with machine. This area has many limitations due to safety restrictions. The machine is allowed to be at automatic work only if the operating personnel is out of its workspace. Collaborative robotics establishes new opportunities in the cooperation between humans and machines. Personnel shares the workspace with the robot where it helps him with non-ergonomic, repetitive, uncomfortable or even dangerous operations. The robot monitors its movements by using advanced sensors in order not to limit but mainly not to endanger its human colleague. In this article, the stress is laid on the safety of collaborative robots and the readout and readiness of this technology for its use in production.
Keywords: MRK, HRC, Industry 4.0, industrial robot, collaborative robot
 
Download full version of the Paper (Adobe Reader Document, 1,9 MB) 
 

OPTICAL EQUIPMENT FOR MEASURING DEFORMATION OF MACHINE TOOL COMPONENTS

MM (Modern Machinery) Science Journal, June 2016
JAN KOUBEK, STEPAN CHLADEK, JIRI SVEDA, IVAN DIVIS
CTU in Prague, Research Center of Manufacturing Technology, Prague, Czech Republic
 
Abstract
This paper describes the possibilities of measuring deformation of machine tool components based on monitoring change in the optical beam path. Deformation is evaluated relatively between an optical beam source and a sensing element. The great advantage lies in the fact that an active sensing element can be replaced by a passive optical element. No electronics needs to be installed in the measured place.  Thus there is no necessity to protect electronic elements in a harsh environment. Another advantage is no need for statically arranged cables when measuring deformation on moving components. The measuring equipment presented in this paper consists of a measuring part and a part for measuring the motion of the reference beam. The position of a stiff body in space is clearly defined by 6 coordinates. The described optical equipment enables measurement of 4 coordinates, or 5 coordinates if an interferometer is used. The unmeasured coordinate describes the rotation of the measured body around the axis parallel with the optical beam.
Keywords:geometry, deformation, deviations, measuring, compensation, calibration, laser beam, horizontal boring machine
 
Download full version of the Paper (Adobe Reader Document, 2,4 MB) 
 

ADVANCES IN SUSTAINABLE ENERGY EFFICIENT MANUFACTURING SYSTEM

MM (Modern Machinery) Science Journal, June 2016
BRANISLAV MICIETA1, JAROMIR MARKOVIC2, VLADIMIRA BINASOVA1                 
1University of Zilina, Faculty of Mechanical Engineering, Department of Industrial Engineering,Zilina, Slovak Republic
2Slovak Legal Metrology, n.o., Banska Bystrica, Slovak Republic
 
Abstract
This paper deals with the sustainable energy efficient manufacturing with application of advanced industrial techniques and new methodical approach to advance energy efficiency measures. This integration represents a sustainable development so that more effective use of natural and energy resources is achieved, energy costs are reduced and energy efficiency of manufacturing processes are created. The energy efficiency in a manufacturing enterprise is specially determined in the beginning of its life cycle. The new solution in the form of methodology for increasing energy intensity of manufacturing processes is proposed. The verification can be used to realize and illustrate energy efficiency potentials in production and logistics planning.
Keywords:energy efficient manufacturing, reconfiguration, sustainable production, advanced industrial engineering, system, methodology
 
Download full version of the Paper (Adobe Reader Document, 1,3 MB)