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A. MATERIALS
1. THE INFLUENCE OF CEMENT DOSAGE ON THE
QUALITY PERFORMANCES OF SPECIAL REFRACTORY CONCRETES/ Nicolae ANGELESCU,
Cristina IONITA, pp 7-11
Abstract. The objective of this paper is the development
of concretes with low dosage of cement and high alumina content
(up to 90%). The properties of refractory concretes are related
to the dosage of the cement from the concretes. Therefore, a reduction
of the dosage cement from concretes from 20% in the case of the
common refractory concretes containing normal dosage of cement to
the 10-15% for the case of the low cement concretes (LCC) or to
the 3-5% for the case of the ultra low cement concretes (ULCC) with
the mixtures use are accompanied by the improvement of the mechanical
and structural characteristics like strength, porosity, compactness
and refractoriness, too.
2. CALCIUM MONOALUMINATE CONSTITUENT OF
ALUMINOUS CEMENTS/ Nicolae ANGELESCU, Darius STANCIU , pp 12-14
Abstract. This works presents information about
obtaining and enforcing calcium monoaluminate and compressive strength
data of samples of materials.
3. SYNTHESIS AND CHARACTERIZATION OF CERAMIC
HYDROXYAPATITE/ Nicolae ANGELESCU, Dan UNGUREANU, Vasile BRATU,
Violeta ANGHELINA, pp 15-19
Abstract. In this paper we present a synthesis
method of calcium phosphate bioceramics such as hydroxiapatite,
the mineral component of bones and hard tissue in mammals. Investigations
carried out have confirmed obtaining of hydroxyapatite characterized
by a high degree of crystallinity, purity, and a good stoichiometry.
4. CHEMICAL AND STRUCTURAL INVESTIGATION
OF ALUMINUM ALLOYS "2024" FOR AEROSPACE/ Florina Violeta
ANGHELINA, Aurel GABA, Ileana Nicoleta POPESCU, Elena STOIAN, Dan
UNGUREANU, pp 20-21
Abstract. This paper presents the results of structural
and compositional investigations on the aluminum alloys "2024"
samples products for the aviation industry ALRO Slatina.
5. THE INDUSTRIAL SYSTEMS’ ENVIRONMENTAL IMPACTS ON
ECOLOGICAL SYSTEMS/ Zorica BACINSCHI, Cristiana RIZESCU, Elena STOIAN,
pp 22-25
Abstract. Industrial Ecology is an emerging field
that focuses on the twin goals of economic development and environmental
quality. The concept requires that an industrial system be viewed
not in isolation from its surrounding systems, but in concert with
them. It is a systems view in which one seeks to optimize the total
materials cycle from virgin material, to finished material, to component,
to product, to obsolete product, and to ultimate disposal. Factors
to be optimized include resources, energy, and capital. Human beings
are only one component in a complex web of ecological interactions:
their activities cannot be separated from the functioning of the
entire system.
6.GOLD AND SILVER NANOPARTICLES: GREEN
SYNTHESIS AND ANALYTICAL INVESTIGATIONS/ Ioana-Raluca BUNGHEZ, Rodica-Mariana
ION, pp 26-30
Abstract. Nanotechnology is a most promising field
for generating new applications in all areas. The process of development
of reliable and eco-friendly metallic nanoparticles is an important
step in the field of nanotechnology (22,23). Interaction of chlorophyll
from Spinachia oleracea in aqueous AgNO3 and HAuCl4 was investigated
for the synthesis of Ag and Au nanoparticles, respectively. Biological
reduction and extracellular synthesis of nanoparticles were achieved
at 37°C at pH=5.6. The nanometallic dispersions were characterized
by UV-VIS at 452 nm for Ag and 550 nm for Au nanoparticles. Fourier
transform infrared spectroscopic measurements (FTIR) revealed the
fact that the chlorophyll pigments are the possible biomolecules
responsible for the biosynthesized nanoparticles
7. RESEARCH ON ACHIEVEMENT LAYERS OF ADHESION
AND LOADING AT THERMAL SPRAYING ARC/ Ilie BUTNARIU, pp 31-33
Abstract. The work presents research results on
achieving adhesion layers and submitting to various parts reconditioning
from the composition of parts and determine optimal working parameters
giving special operating characteristics of parts.
8. STUDIES AND SURVEYS ON METHODS OF OBTAINING METALLIC
SUPPORT MATERIAL AND CHARACTERIZATION OF SURFACE-LAYER SUPPORT AT
ARC THERMAL SPRAYING / Ilie BUTNARIU, pp 34-41
Abstract. This paper presents methods for processing
of layers due to analysis results towards hydrodynamic collisions
spherical liquid particles to solid media. The process of thermal
arc metalizing establish procedures for processing and working parameters
of different operations to achieve a uniform coating on dimensions
and obtain required mechanical properties.
9. FEATURES BEARING LAYERS OBTAINED BY
THERMAL SPRAYING AND REQUIREMENTS IN SERVICE IMPOSED TO MATERIALS
FOR FRICTION COUPLINGS/ Ilie BUTNARIU, Marcel ANGELESCU, Mihai RUICA,
pp 42-45
Abstract. The paper presents the main characteristics
required antifriction materials used in friction couplings and technological
factors contributing to these requirements. It also presents the
criteria for choosing the bearing material.
10. NANO - APPROACH OF PAINTING CONSERVATION/I.
DUMITRIU, R. C. FIERASCU, R. I. BUNGHEZ, R. M. ION , C. M. COROBEA,
pp 46-49
Abstract: The study of nanostructured materials is considered an
emerging field for the next years. To advance the field of preservation
of cultural heritage science and nanostructured materials there
is a continuous interdisciplinary collaboration between material
science specialists and preservationists. In this work we present
a complex study of preparation of nanomaterials based on Ba(OH)2,
material used for conservation of a painting from a private collection.
Is also presented a comparison between the effects of commercial
materials and nanosized synthesized materials.
11. EN NORMS FOR FOUNDRY ALUMINIUM ALLOYS/
Mircea DOBRESCU, Marius VASILESCU, Ioana VASILESCU, pp 50-52
Abstract. Being light Al is a metal with an increasing usage in
order to reduce energy consumption and limit the material thrown
into landfills. In the metallurgy sector, aspects involving norms
have greatly diversified the offer of foundry alloy and aluminium
casting produced inside the European Community. EN norms for castings
and EN 1676 for alloys are discussed in the paper for aluminium
and its alloys together with technical tests that guarantee the
correct performance of the castings.
12. COMPARATIVE FTIR TECHNIQUES APPLIED
TO HISTORICAL PAPERS/Sanda Maria DONCEA, Rodica Mariana ION, Valentin
Ioan NICULESCU, Valeriu PAVEL, pp 53-60
Abstract. Comparative FTIR techniques: transmission
spectroscopy in KBr and diffuse reflectance spectroscopy (DRIFT)
in KBr have been applied to unwritten and inked historical papers.
Advantages and drawbacks of each technique have been discussed,
regarded to the spectra interpretation. In all cases the cellulose
remains the major component of the samples, even in inked and damaged
papers and only small discrepancies are observed between written
and unwritten papers. An important parameter was the reproducibility
of the measurements and the small influences have been pointed out.
13. SUPERFICIAL DEFECTS ON AISI 1118 STEEL
PLATES/ A.T.DUMITRESCU, A.CATANGIU, pp 61-66
Abstract. Even in the case of well established
technological conditions for steel rolled production at some stages
of production line could be observed various defects which causes
are difficult to be determined. In the case of analyzed plate the
surface defects observed we consider to have origin in the steel
casting stage due to high casting temperature , low casting speed
and slag entrapment on the slab surface, the defects dimensions
have been increased during the rolling stage.
14. THE APPRECIATION OF HEAVY METALS CONCENTRATION
IN WILD GROWING MUSHROOMS FROM THE CARPATHIAN MOUNTAIN /Carmen Cristina
ELEKES, Gheorghe IONITA, pp 67-70
Abstract. Many of mushrooms species from the forest
area of Bucegi Mountains are consumed by the native population without
thinking about the heavy metals uptake in the human body. From all
the edible species we choose eight mushrooms, part of them considered
edible and part with uncertain edibility. Heavy metals concentration
in the fruiting body of mushrooms are different from one species
to another and shows mean values of 4.41 mg/kg for Ba, 39.36 mg/kg
for Zn, 471.49 mg/kg for Sn and 63.66 mg/kg for Cu. The bioconversion
factor of heavy metals represent the level of metals concentration
in the mushrooms body correlated with the metallic element in the
soil on which the fungus growth, and has values under 1 for Ba and
Zn, and the highest values in Hygrophorus virgineus species for
tin (9.89) and in Cortinarius armillatus for copper (3.71).
15. ZEOLITES AS MESOPOROUS MATERIALS/ Victor
FARAON, Rodica-Mariana ION, pp 71-74
Abstract. Zeolites are natural volcanic minerals
with a number of unique characteristics. Zeolites were formed when
volcanic ash was deposited in ancient alkaline lakes. The interaction
of the volcanic ash with the salts in the lake water altered the
ash into various zeolite materials. Some natural and synthetic zeolites
(molecular sieves) are discussed in this paper. They have various
properties, like cation exchange, adsorption and molecular sieving
(passing of a gas or a liquid through the zeolite), dehydration
and rehydration, siliceous composition and resistance to radiation,
making them useful in industry. By the encapsulation of various
substances in their mesoporous matrix, like porphyrins or metalloporphyrins,
new materials are formed, which are very useful, for example, as
oxidation catalysts, in domains like wastewater treatment or photodynamic
therapy([1], [2]). In this paper we have studied the structure of
some natural and synthetic zeolites. The zeolites were analyzed
by means of various analytical methods, like X-ray diffraction and
FT-IR methods.
16. CHARACTERISTICS OF Ni-Ti -Cu SHAPE
MEMORY ALLOY WITH DENTAL TECHNICS APPLICATIONS / Marian IONESCU,
pp 75-76
Abstract. There is a constant concern for obtaining
biocompatible alloys with better characteristics in efficient economical
conditions. In this paper, we studied several alloys used in dental
technics as implants. After alloying with 5% and 10% copper content,
several properties of this modified Ni-Ti alloy were investigated.
17. PERFORMANCE MATERIALS USED IN THE MANUFACTURE
OF CUTTING TOOLS/ Ciprian MANESCU, Gheorghe IONITA, Alexis NEGREA,
pp 77-80
Abstract. A technological system consists of four
components (subsystems): machine tool, cutting tool, working piece
and device. From the point of view of the technological system,
are evident two concept: cutting tools capacity by efficient choice
of their material and machine ability by cutting of the working
piece. Efficient choice of the materials for manufacturing of cutting
tools, is the most important link of any technological process.
Their physical, mechanical and technological special they are to
be used. cutting processing of all metallic and nonmetallic materials
with superior cutting parameters
18. MANAGEMENT OF CHEMICAL SUBSTANCES WITH
ECOLOGICAL RISK/ Florea OPREA ,Zorica BACINSCHI ,Cristiana RIZESCU,
pp 81-85
Abstract: Environmental Management offers research and opinions
on use and conservation of natural resources, protection of habitats
and control of hazards. Contributions are drawn from biology, climatology,
ecological economics, environmental engineering, environmental law,
geology, information science and more. Environmental Management
presents the work of academic researchers and professionals outside
universities, including those in business, government, research
establishments, and public interest groups, presenting a wide spectrum
of viewpoints and approaches. The REACH regulation is a European
Community law which requires the registration, evaluation, and authorization
of all substances that are manufactured or imported into the EU
depending on their weight and health risk. SVHC is a chemical substance
(or part of a group of chemical substances) for which it has been
proposed that the use within the European Union be subject to authorisation
under the REACH Regulation
19. DETERMINING SENSITIVITY TO INTERGRANULAR
CORROSION OF AUSTENITIC STAINLESS STEEL 316L/ Aurora Anca POINESCU,
Rodica Mariana ION, Rares STAN, Cristiana RIZESCU, pp 87-90
Abstract. Corrosion awareness is linked both intrinsic
properties of steel and especially the operations of formal work
and structural imperfections caused by the design and operating
conditions. Exposure to a temperature in a range of 500 to 8000C,
leads to the precipitation of chromium rich carbides at the grain
boundaries and the formation of chromium depletion areas adjacent
to these carbides. Following the precipitation phenomena, the chemical
changes at the grain boundary region were determined by metallographic
evaluation.
20. NEW COMPOSITE MATERIALS FOR ELECTROMAGNETIC
PROTECTION/ Elena STOIAN, Gheorghe IONITA, Cristiana RIZESCU, Elena
CHITANU, Violeta ANGHELINA, pp 91-95
Abstract. The paper shows up the research results
on processing and characterization of composite materials with polymeric
matrix (silicone rubber). The materials obtained in laboratory contain
metallized nettling like reinforcement material and powdery graphite
as filling agent. Measurements were conducted to determine the transmision
diminishing carried out.
21. FLEXURAL CHARACTERISTICS OF STEEL FIBRE
REINFORCED SELF COMPACTING CONCRETE BEAMS/ M. VIJAYANAND, NICOLAE
ANGELESCU, K.U. MUTHU, C.G. PUTTAPPA & H.SUDARSANA RAO, pp 96-102
Abstract. Fibre reinforced concrete with steel
fibres attracted the attention of engineers and researchers during
the last five decades. In recent times, self compacting concrete
has been accepted as a quality product and are widely used. A large
number of studies are available with respect to several parameters
viz., flexural strength, load deflection behaviour, toughness, ductility,
crack control, effects of beam dimensions, concrete filling sequence,
flexural toughness parameters etc., of conventional fibre reinforced
concrete. The present study aims to study the flexural behaviour
of scc beams with steel fibres. An experimental programme has been
designed to cast and test three plain scc beams and six scc beams
with steel fibres. The experimental variables were the fibre content
(0vf¬¬¬¬%, 0.5vf% and 1.0vf %) and the tensile steel
ratio (0.99%, 1.77% and 2.51%). The type of fibre configuration
used was crimped fibre 30mm in length, an equivalent diameter of
0.5mm and with stirrups of 2l-8 mm dia bars ? 150mm c/c. The scc
design mix was proportioned to obtain a compressive strength of
70 mpa and yield strength of steel used was 595 MPa. The experimental
constants were the geometry of the beams (2000x125x250)mm as well
as the test set up.
A series of trials was made to obtain a suitable mix proportioning
of SCC based on “Nan Su et al” method. The cracking,
deflection and ultimate failure behaviour were experimentally studied.
The available theoretical formulae proposed by Suji et al and Samir
for FRC beams with conventional vibrated concrete beams were examined
for the case of SFRSCC beams with respect to load deflection behaviour,
ultimate moment, deflection and width of crack at service loads.
A simplified effective moment of inertia function is proposed for
the estimation of deflections of SFRSCC beams at all stages of loading.
The results are presented and discussed.
B. MECHANICAL ENGINEERING
1. MECHATRONICS DESIGN OF A MOBILE ROBOT
FOR DETECTION OF METAL OBJECTS / Mihaita ARDELEANU, Paul Ciprian
PATIC, Ion Floin POPA, Ryad ZEMOURI, pp 105-110
Abstract. A particular importance will be given
to how the principle ideas were managed to achieve an optimal mechatronic
product if certain conditions imposed. Schemes in principle on the
whole mechatronic product was designed, conducted and completed
in detail. The present study attempted to design a robot for the
detection of metal objects, being the preferred transportation system
with tracks. This system has a high stability and provides a backup
speed high enough for such applications. As a result, the mobile
robot those covered by this project will adopt this system.
2. CONSIDERATIONS FOR SELECTION OF CHARACTERIZATION
METHODS AND PROCEDURES OF LAYER DEPOSITED THROW METAL COATING AND
QUALITY CONTROL METHODS / Ilie BUTNARIU, pp 111-116
Abstract. The paper presents aspects of geometric
characterization, micro structural and mechanical physical layer
deposited by thermal spraying, control methods and procedures applied
in order to achieve coatings with special properties and notable
result to the behavior in service.
3. SETTING REGIMES AND PROCESSING POSSIBILITIES
OF MATERIALS SUBMITTED BY UNCONVENTIONAL PROCESSES AT RECONSTRUCTING
REFERENCES / Ilie BUTNARIU, pp 117-121
Abstract. This paper presents methods of processing
layers deposited on different parts by thermal arc metalizing process;
establish procedures for processing, working parameters of the various
operations to achieve a uniform coating on dimensions and to obtain
the required physical and mechanical properties
4. RESEARCH ON THE ESTABLISHMENT OF AN
EXPERIMENTAL MODEL FOR METAL FACILITY / Ilie BUTNARIU, Dumitru ANGELESCU,
Marcel ANGELESCU, pp 123-127
Abstract. This paper presents studies for building
a new plant for thermal spraying of various metallic materials used
for making or refurbishing items in stock composition.
5. STATISTIC PROCESSING OF MEASUREMENTS
DONE WITH CALORCRO EQUIPMENT FOR ASSESSING THE GAIT ENERGETIC EXPENDITURE
AT HEALTHY SUBJECTS AND PATIENTS SUFFERING FROM OSTEOARTHRITIS OF
LOWER LIMBS / G. CAPRIS, S. MIU, S. CONSTANTIN, D. BUCUR, S. POPESCU,
pp 139-134
Abstarct. Based on the endeavour of using movement
as an efficient treatment, the CALORCRO project has as an aim to
promote physical effort as a part of osteoarthritis treatment in
Romanian clinics. The project partners worked out both a method
to evaluate the gait energetic expenditure and a portable computerized
equipment to measure the gait parameters. The newness of both method
and equipment consists in the concept of merging the advantages
of the two existing systems: pedometer and treadmill with embedded
force platforms, in order to evaluate the gait energetic expenditure.
The objective of this study was to find the altering degree of some
gait kinematic parameters and of the gait energetic expenditure
(total expended power) of the subjects suffering from osteoarthritis
of the lower limbs compared to healthy subjects, using the CALORCRO
device.
6. REGRESSION ANALYSIS FUNCTIONS „SURFACE
ROUGHNESS”, „INTENSITY OF HERMOELECTRIC CURRENT”,
„VOLTAGE” IN TURNING WITH DIFFERENT CUTTING SPEEDS /
Adriana CIRSTOIU, Mihai ARDELEANU, pp 135-137
Abstract. This paper presents mathematical models
capable of evaluating the surfaces quality by measuring surface
roughness and the thermoelectric current appearing in the cutting
area, in turning with different cutting depths, using regression
techniques
7. REGRESSION ANALYSIS FUNCTIONS „SURFACE ROUGHNESS”,
„INTENSITY OF THERMOELECTRIC CURRENT”, „VOLTAGE” IN TURNING WITH DIFFERENT CUTTING DEPTHS /Adriana CIRSTOIU, Mihai
ARDELEANU, pp 139-141
Abstract. This paper presents mathematical models
capable of evaluating the surfaces quality by measuring surface
roughness and the thermoelectric current appearing in the cutting
area, in turning with different cutting depths, using regression
techniques
8. ECOLABEL - PASSPORT OF CONSUMER PRODUCTS
FOR EUROPE / Ion DURBACA , pp 143-148
Abstract. The paper deals with the issue of „eco-labeling
of consumer products" through the European legislative framework
(Regulation (EC) no. 1980/2000 of the European Parliament and the
Council of 17 July 2000 establishing a scheme for EU eco-label)
and identifies a micro-guide able to offer consumers the necessary
environmental protection issues that includes the product offered
for sale. In a market where quality means both improving health
and better environmental protection, "eco product" , which
minimizes environmental impact and health, ensuring a certain level
of quality, can represent the fullfill of the nowaday consumer requirements.
European Eco label, which is the only sign of environmental quality,
certified by an independent organization is valid throughout Europe
and represents a unique opportunity to meet consumer expectations.
9. CONSIDERATIONS ON AN INTEGRATED APPROACH
TO BEST PRACTICE IN RISKS MANAGEMENT IN THE PROCESS INDUSTRIES /
Ion DURBACA, pp 149-153
Abstract. The primary objective of the paper is
the integrated approach of best practices in risks management in
the process industries. Also, it may be mentioned that the work
is a real help in developing management strategies in order to determine
a balance of interaction between the four systems (economic, human,
environmental and technological) and 'drafts' a reference of integrated
management of industrial risks.
10. ABOUT THE SIEVING PROCESS OF VIBRATORY
SCREEN / Gheorghe I. ENE , pp 154-156
Abstract. In this work are presented the conjugated
influences on the sieving process of two elements:- the friction
between the sift material and screen;- locking mesh of sieve with
grains unable to cross the screen. The functional characteristics
of the vibrating screen are determined, observing the influence
of these factors upon the sieving process.
11. APPLICATION OF SIEVING PROCESS OF VIBRATORY
SCREEN / Gheorghe I. ENE, pp 157-160
Abstract. In this work are presented the conjugated
influences on the sieving process of two elements: the friction
between the sift material and screen and locking mesh of sieve with
grains unable to cross the screen. The functional characteristics
of the vibrating screen are determined, observing the influence
of these factors upon the sieving process.
12. INTEGRATIVE MECHATRONICS - NATIONAL
PLATFORM FOR INTERDISCIPLINARY EDUCATION AND RESEARCH TRAINING /
Gheorghe GHEORGHE, pp 161-163
Abstract. The work discusses both at the national
and the international level, the scientific and technologic evolution
from precision mechanics engineering to intelligent and information
micro-engineering, by presenting engineering evolution matrixes,
the structural and the functional generations of High-Tech integrated
products, technologies and concepts that make use of advanced research
areas and of the development in competitive knowledge.
13. THE ANALYSIS OF THE PROCEDURES OF GRAPHICAL
SOLVING OF THE INTERSECTION POLYHEDRON-ANY STRAIGHT LINE / Ciprian
MANESCU, Carmen POPA, Ivona PETRE, pp 164-166
Abstract. This paper deals with relation between
a polyhedron of particular position and any straight line; the graphical
solving consists of an artifice based on the methods of descriptive
geometry; we con get the same solution applying two different methods
14. MATHCAD APPLICATION TO DESIGN OF THE
DISCRETE CONTACT LOOSE RIDING RINGS INCLUDED IN THE SUPPORTING SYSTEMS
OF ROTARY DRUMS / Cornel MARIN , Gheorghe ENE, pp 167-172
Abstract. The rotary drums are technological equipments
used in manufacturing clinker cement materials, cooling cement clinker,
cooling burnt pyrites exhausted from roasting furnace lines of sulfuric
acid, cooling alumina discharged from calcination ovens, cooling
lime exhausted from lime ovens, cooling slag from chemical fertilizer
furnaces, etc. Rotary drums are also used in mixing of powder or
granular materials, separation and enrichment of ore, coal, etc..,
washing ores and other minerals, crystallization and extraction
of sugar from sugar beets, etc.., drying various raw materials for
cement clinker, clay, marl, furnace slag, coal, grain, etc.. This
paper presents some contributions of application using MATHCAD 14?
program into design and verification of loose riding rings mounted
on support blocks included in the equipment’s bearing group.
15. DESIGN OF THE CONTINUOUS CONTACT LOOSE
RIDING RINGS ON SUPPORT BLOCKS INCLUDED IN THE SUPPORTING SYSTEMS
OF ROTARY DRUMS / Cornel MARIN , Gheorghe ENE, pp 173-176
Abstract. The rotary drums are technological equipments
used in manufacturing clinker cement materials using the LEPOL process,
cooling cement clinker, cooling burnt pyrites exhausted from roasting
furnace lines of sulfuric acid, cooling alumina discharged from
calcination ovens, cooling lime exhausted from lime ovens, cooling
slag from chemical fertilizer furnaces, etc. Rotary drums are also
used in mixing of powder or granular materials, separation and enrichment
of ore, coal, etc.., washing ores and other minerals, crystallization
and extraction of sugar from sugar beets, etc.., drying various
raw materials for cement clinker, clay, marl, furnace slag, coal,
grain, etc.. This paper presents some contributions to the design
and verification of continuous contact loose riding rings mounted
on support blocks included in the equipment’s bearing group
16. MATERIAL BASED ON NANOFIBER FOR ARTIFICIAL
MUSCLE / Daniel MUNTEANU, Rodica-Mariana ION, Nelu ION, Viviana
FILIP, Cornel MARIN, pp 177-179
Abstract. Artificial muscles are likely to be essential
components of robotics, and a variety of micro-machinery. The artificial
muscles, have the potential to allow future robots to operate with
superior muscle elasticity and isometric stress generation, even
at extreme temperatures. Some new nanofibers for an artificial muscle
is presented in this paper. The artificial muscle is based on a
contractile polymer gel which undergoes abrupt volume changes in
response to variations in external conditions. The tubes and wetting
surfaces of the valves are constructed from teflon which is chemically
inert and the fibers are made from Poly-Vinyl Alcohol PVA, alone
or with PMMA and as magnetic polymer, with magnetite.
17. THE GEOMETRICAL ANALYSIS OF A TETRAPOD
BIO-MECHANISM USING SOLIDWORKS AND COSMOSMOTION /Alexis NEGREA,
Viviana FILIP, Paul Ciprian PATIC, pp180-183
Abstract. The paper analyzes in terms of a geometric
point of view a kind of bio-mechanism consisting of a legs of a
tetra pod animal. Each front leg is a complex structure with three
closed contours and each rear leg has only two closed contours.
In this paper it was analyzed the geometry of bio-mechanism of a
rear leg, both by calculation in Mathcad (based on vector equations)
and by modeling and measuring in SolidWorks. At last it was built
the soil contact point trajectory.
18. THE FINITE ELEMENT ANALYSIS OF A HIGH
PRESSURE PUMP / Mihai TALU, Stefan TALU, pp 184-187
Abstract. This paper analyse through the finite
elements method (FEM) a high pressure pump. The analysis of high
pressure pump was made for determination of stresses distribution,
displacements and deformations. A three-dimensional model of the
high pressure pump with a complex geometry was generated based on
the designed data. The Finite Elements Analysis was performed using
SolidWorks 3D CAD Design and COSMOSWorks software. Results predicted
by the finite element method show the method presented is efficient
and accurate and in good agreement with the theoretical and experimental
values. Results from the current analysis can be used for further
studies in designing of the high pressure pump.
19. STATIC ANALYSIS OF A PRESS RAM-LINEAR
HYDRAULIC MOTOR PISTON ASSEMBLY FROM HORIZONTAL HYDRAULIC PRESS – 2 MN / Mihai TALU, Stefan TALU, pp 188-191
Abstract. The aim of this paper is to analyse through
the finite elements method (FEM) the press ram-linear hydraulic
motor piston assembly from horizontal Hydraulic Press – 2
MN. The analysis of ram-piston assembly was made for determination
of stresses, displacements, deformations and the factor of safety
distribution. A three-dimensional model of the ram-piston assembly
with a complex geometry was generated based on the designed data.
The Finite Elements Analysis was performed using SolidWorks 3D CAD
Design and COSMOSWorks software. The simulation results were evaluated
and compared to the experimental data. Results show that the established
FEM model provides useful information for the ram-piston assembly
optimal design.
20. THE FINITE ELEMENT ANALYSIS OF A TURBINE
SHAFT – MAIN SHAFT SUBASSEMBLY FROM A AVERAGE POWER HYDRODYNAMIC
CLUTCH INCLUDED IN A DRIVELINE AGRICULTURAL MACHINERY/Stefan TALU,
Mihai TALU, pp 192-195
Abstract. This paper analyze through the finite
elements method (FEM) a turbine shaft – main shaft subassembly
from a average power hydrodynamic clutch included in a driveline
agricultural machinery. The static and dynamic analysis of turbine
shaft – main shaft subassembly was made. A three-dimensional
model of the turbine shaft – main shaft subassembly with a
complex geometry was generated based on the designed data. The Finite
Elements Analysis was performed using SolidWorks 3D CAD Design and
COSMOSWorks software. Results predicted by the finite element method
show the method presented is efficient and accurate and in good
agreement with the theoretical and experimental values. Results
from the current analysis can be used for further studies in designing
of the turbine shaft – main shaft subassembly.
21. NUMERICAL ANALYSIS OF CONVENTIONAL
VERTICAL AIRFLOW IN A HOSPITAL OPERATING ROOM /Stefan TALU, Mihai
TALU, pp 196-199
Abstract. This paper presents the airflow analysis
in a hospital operating room, in conventional (turbulent) vertical
airflow. The simulations results allow optimal design of ventilation
and air conditioning systems to satisfy the imposed requirements
for air quality control and thermal comfort in a hospital operating
room.
22. MECHANISM FOR FEEDING, MIXING AND DOSING
SAWDUST MILLS TO MANUFACTURE PELLETS USED / Marian TOPOLOGEANU;
Stefan VELICU; Radu Catalin TARCA; Mirela SOHACIU; Alina MOLAGIC;
Tiberiu VESSELENYI, pp 200-203
Abstract. This article presents some aspects regarding
the reduction of the negative impact generated by economical activities
in the field of wood processing by realizing some equipments of
pressed sawdust and refers mainly at the fuelling, dosage and homogenization
mechanism which is a component part of the pellet grinders. The
Fuelling, dosage and homogenization mechanism (picture 1) is installed
on the pellet manufacture grinder is composed from a dosage device
(position 1) and a fuelling and homogenization device (position
2). The spindle driving of the feeding device is made by a gear
motor. The motor speed can be adjust using a speed variable frequency
device which is command depending by the required flow of the pellets.
The spindle driving of the feeding and mixing device is powered
by a constant speed electric motor. Feeding, dosing and mixing mechanism
is realised for the CMP type (California Pellet Mill) with a maximum
yield of 1000 kg / hour.
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