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Journal PROCEEDINGS IN MANUFACTURING SYSTEMS |
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ISSN 2067-9238 |
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Editors Adrian GHIONEA, George CONSTANTIN
Series Editorial Team Emilia BĂLAN Sorin Mihai CROITORU Costel Emil COTEŢ
Editorial Council Traian AURITE, Alain GERARD, Csaba GYENGE, Florin IONESCU, Constantin ISPAS, Branko KATALINIK, Stanislav LEGUTKO, Aurel OPREAN, Eugen PAY, Daniel PLAY, Radu VOINEA
Bucharest, 2010
University “Politehnica” of Bucharest Machines and Production Systems Department Splaiul Independenţei 313, sector 6 060032 Bucureşti, România Tel: (+4021) 402 94 20 E-mail: orgcom@icmas.eu http://www.icmas.eu
Editura Academiei Române Calea 13 Septembrie nr. 13, sector 5 050711 Bucureşti, România Tel.: (4021) 318 81 46, (4021) 318 81 06, Fax: (4021) 318 24 44 E-mail: edacad@ear.ro http://www.ear.ro
Peer reviewers: acad. Radu VOINEA, Aurel OPREAN, Alain GERARD, Daniel PLAY
Editorial assistant: Irina FILIP Computerized editing: George CONSTANTIN, Mariana ŞERBĂNESCU
Gheorghe AMZA, Romania Traian AURITE, Romania Laurean BOGDAN, Romania Octavian BOLOGA, Romania Iooan BONDREA, Romania Gheorghe BRABIE, Romania Paul Dan BRÎNDAŞU, Romania Daniel BRUN-PICARD, France Olivier CAHUC, France Gavrilă CALEFARIU, Romania Ilie CATANĂ, Romania George CONSTANTIN, Romania Mariana CRAIU, Romania Radu COTEŢIU, Romania Valentin DIŢU, Romania George DOBRE, Romania George DRĂGHICI, Romania Cătălin FETECĂU, Romania Adriana FOTA, Romania Gabriel FUMUŞANU, Romania Alain GERARD, France Adrian GHIONEA, Romania Eugen GRECU, Canada Marius GURAN, Romania Csaba GYENGE, Romania Florin IONESCU, Germany Sorin IONESCU, Romania Mihaiela ILIESCU, Romania Kostadin KOSTADINOV, Bulgaria Ivan KURIC, Slovakia Stanislav LEGUTKO, Poland Nicolae MARINESCU, Romania Josef NOVAK-MARCINCIN, Slovak Republic Constantin MINCIU, Romania Sevasti MITZI, Grece Vasile NĂSUI, Romania Tadeusy NIESZPOREK, Poland
Nicolae OANCEA, Romania Viorel PĂUNOIU, Romania Daniel
PLAY, France Dan PRODAN, Romania Ştefan Dan PASTRAMĂ, Romania Ioan PĂRĂUŞANU, Romania Tomasz RYDZKOWSKI, Poland Jean François RIGAL, France Gheorghe SINDILĂ, Romania Ion SIMIONESCU, Romania Laurenţiu SLĂTINEANU, Romania Ştefan STAICU, Romania Constantin STĂNCESCU, Romania Eugen STRĂJESCU, Romania Ioan TĂNASE, Romania Constantin TÂRCOLEA, Romania Nicolae UNGUREANU, Romania Luige Vladareanu, Romania Miron ZAPCIU, Romania |
Journal PROCEEDINGS IN MANUFACTURING SYSTEMS
□ Volume 5, No. 4, 2010
· Mihaiela
ILIESCU, Marian LAZĂR, Relevant aspects when developing a new customized
product – marble and granite CNC bevelling
machine, pp. 209-212 · Yuri
PAVLOV, Preferences,
utility function and control design of complex processes, pp. 225-230 pp
191-194 ANALYSIS OF THE PERTURBATIONS BROUGHT ABOUT BY THE TOOL FLOW IN THE MANUFACTURING SYSTEMS
Magdalena BARBU1, Gavrilă CALEFARIU2,
Gheorghe BONCOI3 Abstract: Production diversity imposes a real technology variable in time, which in its turn requires a variable structure of the manufacturing system and therefore
a diversified tool flow. The notion „tool flow” is
defined, emphasizing the differences from the material flow of the semi-products.
When a parameter of the process is
liable to asynchronisms, it is a source of inevitable but also necessary perturbations during the processing. Asynchronism itself is the measure
of perturbation. In the majority of the practical cases, the output perturbations are
decisive upon the stability of the process, the input and consequently the endogenous ones depending on the former. Therefore,
in planning a production system, first and foremost the output values with their perturbations
are settled, then the commands with their perturbations
are determined and finally the production
system is planned. Key words: tool flow, perturbation
evaluation, analysis of inputs / outputs. 1, PhD, Assistant Prof., E-mail:
magda.n@unitbv.ro 2, PhD, Professor, E-mail: gcalefariu@unitbv.ro 3 PhD, Professor University
Transilvania” of Braşov, I.E.S.P. Department, Brasov, Str, Mihai Viteazu, nr.
5w Tel:/Fax. 0268477113
pp
195-198 INTEGRATION OF PROCESS PLANNING FOR
DISTRIBUTED MANUFACTURING IN VIRTUAL ENVIRONMENT
Saša
ĆUKOVIĆ1, Milan ERIĆ2, Goran
DEVEDŽIĆ3, Vanja LUKOVIĆ4,
Ionuţ GHIONEA5 Abstract: Production process planning in real or
virtual environment refers
to the choice of parameters and sequencing of certain manufacturing processes with the aim to
obtain the required product features with greater productivity, reduced production costs, shorter development time etc. Therefore, innovative systems for virtual process planning, based on intelligent agents, greatly improve adaptation to dynamic changes
and uncertain disturbances in the production process and environment. Achieving these objectives in distributed production environment, to a large extent, is obtained through
Internet and modern Web and
VR technologies. This paper presents new concepts of process planning integration in virtual manufacturing
enterprises. Key words: integrated and distributed CAPP,
virtual environment, Web and Virtual CAPP, CAPP agents, XML, STEP-NC
standards. 1
PhD
Student, Faculty of Mechanical
Engineering Kragujevac, University of Kragujevac, Department
of Production Engineering, Sestre
Janjić 6, Kragujevac, Serbia, E-mail: cukovic@kg.ac.rs, 2
PhD,
Professor, Faculty of Mechanical Engineering Kragujevac, University of
Kragujevac, Department of Production
Engineering, Sestre Janjić
6, Kragujevac, Serbia, E-mail: ericm@kg.ac.rs, 3
Professor,
Faculty of Mechanical
Engineering Kragujevac, University of Kragujevac, Department
of Production Engineering, Sestre
Janjić 6, Kragujevac, Serbia, E-mail: devedzic@kg.ac.rs, 4 PhD Stud., Technical Faculty Čačak, University of Kragujevac, Svetog Save 65, Čačak, Serbia, E-mail: vanja@bluenet.rs, 5 PhD Lecturer,
University POLITEHNICA of Bucharest, Department of Machine Manufacturing Technology, Bucharest,
Romania. E-mail: ionut76@hotmail.com. pp
199-202 CONSTRUCTION AND
DYNAMIC PERFORMANCE OF A PNEUMATIC MUSCLE ACTUATED TRANSLATION MODULE FOR
ROBOTIC ARMS DESIGNED FOR WHEELCHAIRS
Tudor DEACONESCU1, Andrea DEACONESCU2 Abstract: Pneumatic muscle actuated
translation modules represent an innovative solution for systems designed for
wheelchairs endowed with robotic arms. Pneumatic muscle actuated robotic arms
are intended to increase the degree of autonomy of persons with impairments
of the lower and upper limbs. The paper presents in detail the construction
of such a translation module, as well as its dynamic performance. Based on
the obtained experimental results the dependencies of the stroke lengths
achievable by means of pneumatic muscles on air feed pressure and load are
highlighted. The developed empirical model gives a concrete and effective
description facilitating the understanding of the mechanical behaviour of the
pneumatic muscle, in view of optimal design and utilization. Key words: pneumatic muscles, robotic
arm, wheelchair, translation module. [1] PhD, Professor, Transilvania
University of Braşov, Economic Engineering and
Production Systems Department, , 29 Bd. Eroilor, Tel/Fax:0040-268-477113, E-mail: tdeacon@unitbv.ro 2 PhD, Professor, Transilvania University of Braşov,
Economic Engineering and Production
Systems Department, Professor, 29 Bd. Eroilor, Tel/Fax:0040-268-477113, E-mail: deacon@unitbv.ro
pp
203-208 Increasing of effectiveness of manufacturing and directing technical level
Erika HRUŠKOVÁ1, Radovan HOLUBEK2 Abstract: Continuous developing technologies dwell on the
focus to requirement of manufacture effectiveness, her directing and of
shortening process time, etc. Through the application of various simulations
software is possible to verify and optimize the running of material flow in
manufacturing process. By this philosophy is planning solution of European
Union project in our Institute of Manufacturing Systems and Applied
Mechanics. Project aim is researching increasing of manufacturing efficiency
and of directing in the frame of plastics punched parts to achieve increasing
of competitiveness through the knowledges and
technologies transfer and by cooperation with researching and develop
activities in academic sphere and praxis. Key words: manufacturing, effectiveness, material flow,
designing methods, directing. [1]Faculty
of Material Science and Technology, Institute of Manufacturing Systems and
Applied Mechanics, Department of Technological Devices and Systems,
Researcher, Rázusova 2, 917 24 Trnava,
tel.: +421 33 5511601, ex. 21, E-mail:
erika.hruskova@stuba.sk 2 Faculty
of Material Science and Technology, Institute of Manufacturing Systems and
Applied Mechanics, Department of Technological Devices and Systems,
Researcher, Rázusova 2, 917 24 Trnava,
tel.: +421 33 5511601, ex. 21, E-mail:
radovan.holubek@stuba.sk pp
209-212 RELEVANT ASPECTS WHEN DEVELOPING A NEW CUSTOMIZED PRODUCT – MARBLE AND GRANITE CNC BEVELLING MACHINE
Mihaiela ILIESCU1, Marian LAZĂR2 Abstract: Machining edges of marble and granite
blocks is commonly required in, both, domestic and construction applications. The
severe conditions involved
by this process ask for rigid, reliable and productive machine-tools. Relevant aspects
dealing with product specifications, modeling and
engineering of a customized beveling
machine are pointed out by this paper.
The CNC equipment is the one Isel
automation systems are equipped with. The software used for modeling is SolidWorks, while the machining software required is isy-CAM. Key words: specification, customized
product, modeling, modules, beveling,
CNC machine. 1 University “Politehnica” of Bucharest,
Manufacturing Department,
Associate Professor, Bucharest, Romania, iomi@clicknet.ro, +40 722619805. 2 SC OPTOELCTRONICA 2001 SA, Engineer, Măgurele, Ilfov, Romania, www.optoel.ro,
+40 745176606
pp
213-216 MATERIAL FLOW IN FLEXIBLE PRODUCTION SYSTEMS
Peter
KOŠŤÁL1, Andrea MUDRIKOVÁ2,
Daynier Rolando DELGADO SOBRINO3 Abstract The main aim
of this paper is to resolve
material flows in systems,
by describing the situation of flexible manufacturing systems laboratory and to make
the designs of arrangement of these flows, to make
design variants of spatial
arrangement of this laboratory. We planned to create at Institute
of manufacturing systems and applied mechanics
the laboratory of flexible manufacturing systems. This laboratory is planned to equip
with a turning and milling machine
centers, conveyors, automated storage systems and industrial robots. This laboratory will enable more qualitative class works for students and do easier the start to praxis Key words: material flow, laboratory, class works, manufacturing system, flexible manufacturing. [1] Slovak
University of Technology, Faculty of Material Science and Technology, Institute
of Production Systems and Applied Mechanics, lecturer, Paulínska
16, 91724 Trnava, Slovak Republic, tel.:
+421 918 646 035, peter.kostal@stuba.sk 2 Slovak
University of Technology, Faculty of Material Science and Technology,
Institute of Production Systems and Applied Mechanics, lecturer, Paulínska 16, 91724 Trnava,
Slovak Republic, tel.: +421 918 646 035,
andrea.mudrikova@stuba.sk 3 Central University “Marta Abreu”
de Las Villas, Department
of Industrial Engineering, Santa Clara, 54830, Villa Clara, Cuba pp
217-220 INTELLIGENT
DIAGNOSTICS OF MACHINING PROCESS IN CNC MACHINES
Jaromír MURČINKO1, Zuzana MURČINKOVÁ2 Abstract: The paper dealt with basic approaches of intelligent
systems implementation in manufacturing processes diagnostics of CNC
machines. There are several approaches such as either the usage of external
or internal intelligent systems. The goal of implementation is the control of
manufacturing process in order to influence the examined process quality and
economy. The present development in field of artificial intelligence allows
the directly implementation of intelligent components into CNC machine
software and hardware in form of agents. Key words: intelligent
component, vibration, CNC machine, agent, effector,
sensor. 1 Faculty of
Manufacturing Technologies in Prešov, Technical
University Košice, Department of Manufacturing Technogies, Ing. Jaromír Murčinko, PhD., lecturer, Štúrova
31, 080 01 Prešov, Slovak Republic, E-mail: jaromir.murcinko@tuke.sk 2 Faculty of
Manufacturing Technologies in Prešov, Technical
University Košice, Department of Technological
Devices Design, Ing. Zuzana
Murčinková, PhD., lecturer, Štúrova 31, 080 01 Prešov,
Slovak Republic, E-mail:
zuzana.murcinkova@tuke.sk pp
221-224 FINITE ELEMENT ANALYSIS OF VIBRATING BEAM STRUCTURAL ELEMENTS WITH TRANSVERSAL CRACK
Milan NAĎ1, Eva LABAŠOVÁ2, Rastislav DURIŠ3 Abstract: The existence of a crack in structural elements introduces local modification
of flexibility and consequently affects the dynamic behaviour
of the cracked element.
In this paper, the modal properties such as the natural frequencies and eigenvectors for bending vibrations
of cracked beams are studied. The focus of this paper is on the
modal analysis of a beam structural element with a transverse single-edge open crack. These modal properties are obtained using the finite element method. The influence of the geometrical parameters of the crack, (especially
the position and depth of the transversal crack) on the modal properties is examined. Changes of the modal properties due to the crack
appearance are presented. Key words: beam structure, bending vibration, transversal crack,
natural frequency, FEM. 1 E-mail: milan.nad@stuba.sk 2 E-mail: eva.labasova@stuba.sk 3 E-mail: rastislav.duris@stuba.sk
Slovak University of
Technology, Faculty of Materials
Science and Technology,
IPSAM, Department of Applied
Mechanics, Paulínska 16,
917 24 Trnava, Slovak
Republic pp
225-230 PREFERENCES,
UTILITY FUNCTION AND CONTROL DESIGN OF COMPLEX PROCESSES Yuri PAVLOV1 Abstract: Expected utility theory is one of the
approaches for assessment
and utilization of qualitative conceptual information.
The expected utility approach allows for the expert preferences to be taken
in consideration in complex biotechnological
systems and problems. The expert values are
not directly oriented towards the particular problem and as a
result, people express substantial uncertainty about their preferences. The topic of
this article is recurrent stochastic algorithms for evaluation of expert utilities.
A prototype of a value-driven decision support system is discussed.
The dialogue between the expert and the computer is modeled numerically. An example of complex control design based
on the evaluated utility is demonstrated. Key words: preferences,
expected utility, stochastic approximation, complex process, optimal control 1 Centre
of Biomedical Engineering “Prof. Ivan Daskalov”, Bulgarian
Academy of Sciences, Bulgaria, Sofia 1113, “Acad. G. Bonchev”
Str., Bl. 105, E-mail: yupavlov@clbme.bas.bg or yupavlov14@hotmail.com, pp
231-236 IDENTIFICATION OF
INFLUENT FACTORS ON SURFACE INTEGRITY IN NICKEL-BASE
SUPERALLOY DRILLING
Abstract: For the critical rotating components in aeronautical
industry, the metallurgical quality achieved after machining conditions could
determine their mechanical behavior in fatigue. To
guarantee this quality, the tools, materials and cutting conditions are
frozen during the validation process by a cut-up part following by an acceptable
surface integrity. Even with the fixed parameters, perturbations can occur
during the process and may have a direct impact over the metallurgical
quality through the apparition of anomalies, which could reduce the
calculated fatigue life. The aim of this study is to define a Process
Monitoring technique able to detect the thickness affected by the machining
taking into account the flank wear effect. With the Pearson’s correlation the
most influent factors are identified and after that a linear regression is
used in order to define the model. Key words: machining of Nickel base alloy, process monitoring, Pearson,
statistical methods. [1] Université de Toulouse, INPT- ENIT, Laboratoire
Génie de Production – 47 avenue d'Azereix – 65016 2Turboméca Tarnos, avenue du 1er mai 40220 TARNOS, andrei.popa@enit.fr, gilles.dessein@enit.fr pp
237-242 A PROFESSIONAL RISK ASSESSMENT SCENARIO AT THE SMEs LEVEL USING KNOWLEDGE BASES
Sebastian
Marius ROŞU1, George DRĂGOI2, Tatjana ŠIBALIJA3, Vidosav D.
MAJSTOROVIĆ4 Abstract: Today, in
the European countries more then 95% of the
companies are small and medium-sized enterprises (SMEs) and majority of the
European Union employees work in these companies. The SMEs research
development activities, products development, new technologies implementation,
etc., presupposes knowledge
and assumption of
multiple risks. As a result of a new product development paradigm, there is a greater
need for software tools to risk estimation.
In this paper we present a method to professional risk assessment (PRA) as part of risk
management process (RMP.) In addition, the paper presents how can be
knowledge bases built and used for PRA at the SMEs level. Key words: knowledge base, professional risk assessment, small and medium-sized
enterprise. 1 Special Telecommunications Service, Information Technology Department, PhD engineer, 323A Splaiul Independenţei, Sector 6, Bucharest, 060032, Romania, Tel. 0721333693, E-mail address: sebastianrosu@stsnet.ro 2 University “Politehnica” of Bucharest, Faculty of Engineering in Foreign Languages,
PREMINV Research Center, Professor,
313 Splaiul Independenţei, Sector 6, Bucharest,
060042, Romania, Tel. 0724391157, E-mail
address: Dragoi.george23@gmail.com,
gdragoi@mix.mmi.pub.ro 3 University of Belgrade, Mechanical Engineering Faculty,
Laboratory for Production
Metrology and TQM, PhD, Kraljice Marije 16, 11120, Belgrade,
Serbia, Tel. 381 64 61 69 495, Fax 381 11 33 70 364, E-mail address: sibalija@yahoo.com 4 University of Belgrade, Mechanical Engineering Faculty,
Laboratory for Production
Metrology and TQM, Professor, Kraljice Marije 16, 11120, Belgrade,
Serbia, Tel. 381 64 33 02 407, Fax 381 11 33 70 364, E-mail address: vidosav.majstorovic@sbb.rs pp
243-248 MEASUREMENT AND ANALYSIS OF CUTTING FORCES AND DEFORMATION AT MILLING THIN PARTS
Ioan TĂNASE1, Adrian GHIONEA2, Ionuţ GHIONEA3 Abstract: The main results
of experimental researches and
CAD-CAM simulations at milling
plane surfaces of thin walls parts are presented in the paper. The cutting force measurement was done using
a multi-component quartz dynamometer with a special data
acquisition system for the cutting forces.
The elastic deformation and
the stress values in the machined part were determined by experimental tests and simulated
using the FEM analysis. There is presented a comparison of values obtained by measuring
during the process with those established by applying FEM. This study results
lead to some remarks and useful recommendations
for determining the process parameters and the requirements
for the technological system in the machining of parts having thin walls,
with allowable deformations. Key words: cutting conditions, thin wall milling,
force measurement, deformation, stress analysis. 1
PhD, Prof, E-mail: tanase.ioan@yahoo.com 2 PhD,
Prof, E-mail:adrianghionea@yahoo.com 3 PhD,
Lecturer, E-mail:
ionut76@hotmail.com University “Politehnica”
of Bucharest, Splaiul Independentei 313, Sector 6, Bucharest, Romania pp
249-253 Regression Models applied to manufacturing systems Adrian Stere PARIS1, Constantin TÂRCOLEA2 Abstract: The problems of manufacturing systems are explored
by means of regressions functions. In the first part of the paper are
presented some statistical models for manufacturing costs, quality loss
function (shifted gamma) and reliability (vapor
pressure failure function). An application concerning the manufacturing
accuracy of machine-tools is developed under the term of technologic
reliability. Key words: regression, technologic reliability models,
manufacturing application. [1] PhD, Math., Professor,
University "Politehnica" of Bucharest, Department of Mathematics, Splaiul
Independentei 313, Sector 6, 060042, Bucharest, ,Romania,
E-mail: constantin_tarcolea@yahoo.com 2 PhD, Eng, Lecturer, University
"Politehnica" of Bucharest, Materials Tehnology and Welding Department,
Splaiul Independentei 313, Sector 6, 060042, Bucharest,
Romania, E-mail: adrianparis@amza.camis.pub.ro Electronic mail: orgcom@icmas.eu /
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