eng
University of Technology-Iraq
Engineering and Technology Journal
1681-6900
2412-0758
2009-02-01
27
3
88
100
10.30684/etj.27.3.16
29178
Design and Evaluation of a CAD/CAM System for Progressive Dies
Tahseen Abbas
tfalani@ymail.com
1
Jamal Mohammed
50128@uotechnology.edu.iq
2
Firas Abd-Alqader
3
The objective aim of this paper is to generate design and manufacturing data of themain components of progressive dies depending on a 2D drawing ( low level entities) ofthe desired part , then the drawing data manipulated and improved to create 2 ½ Ddesign drawing of the designed progressive die in step by step manner as follows:· Geometrical checking of 2D part drawing elements.· Pressure calculation.· Part layout design.· Design of punches, punches holder, pilot, die, and stripper.· Construct a standard database.· CNC program generation for machining of the designed progressive die parts.The output data of each stage of the proposed system have been used as an input datefor the next stage in semi automated manner using Visual Basic Language forApplications [VBA].The system have been implemented for design several progressivedies of different parts to illustrate the system flexibility, then the design results have beenimplemented for manufacturing one of these dies CNC wire cut machine.
https://etj.uotechnology.edu.iq/article_29178_564c46d9366b1b2a499fbf4804c968e2.pdf
eng
University of Technology-Iraq
Engineering and Technology Journal
1681-6900
2412-0758
2009-02-01
27
3
101
110
10.30684/etj.27.3.17
29179
Using Diode Laser for Determination of Hemoglobin and GOT in Blood
Abd-Alrahman Mohammed Murad
1
In this work , Semiconductor Laser Diode (SLD) emitting at 532nm wavelength and1 mW power was used to detect and analyze the Hemoglobin and GOT in Blood insteadof Spectrophotometer.
https://etj.uotechnology.edu.iq/article_29179_e95f6d12c898f39193a1b56a0b8799d2.pdf
eng
University of Technology-Iraq
Engineering and Technology Journal
1681-6900
2412-0758
2009-02-01
27
3
111
125
10.30684/etj.27.3.18
29180
The Effect of Thermal Behavior on Piston Design for Internal Combustion Engines
Ahmed Al-Beiruti
1
Basem Fadhel
2
Afaq Mahmood
3
This paper deals with a theoretical and analytical study of three real pistons ofinternal combustion engines (work with gasoline). These pistons are different from eachother in shape, speed ,and power. Three dimension (3D) models for the real pistons werebuild using Ansys software. The boundary conditions were set in order to carry out thethermal analysisThe thermal analysis covered also cases of different changes in the shape of eachpiston in order to carry out comparisons with the real shapes of the pistons.The analysis offers to the designer the ability to understand the behavior of thermalstresses, their locations and the way they spread in order to reach to the optimum design.
https://etj.uotechnology.edu.iq/article_29180_fa203fa7fa5eb5ba36004df7f9edcec3.pdf
eng
University of Technology-Iraq
Engineering and Technology Journal
1681-6900
2412-0758
2009-02-01
27
3
126
130
10.30684/etj.27.3.19
29181
Improvement of solar cell efficiency by using Two mirrors V-trough concentrator
Ali Al-hamadani.
1
V-trough concentrator with four mirrors has been designed and constructed. Itseffects on the silicon solar cell performance were studied with and with out coolingsystem. It was shown that the cell efficiency was increased from 11.94 % to 15.46 %with out cooling and from 13.3 % to 16.4 % with cooling system. The effect of acombination between Fresnel lens and V-trough concentrator was studied also. The solarcell efficiency was improved to 24 % with out cooling and the best efficiencyimprovement was 26.6% with cooling system.
https://etj.uotechnology.edu.iq/article_29181_e95cd645bca6988f0495d4c131f71b8e.pdf
solar cell
Efficiency
concentrator
eng
University of Technology-Iraq
Engineering and Technology Journal
1681-6900
2412-0758
2009-02-01
27
3
131
143
10.30684/etj.27.3.20
29184
modification
Ali Mahdi
ali.j.mahdi@uokerbala.edu.iq
1
Modification of Dead space method by find a new values of dead space factor, iscalled geometrical quenching, depending on a largest dimension of Benson's flames. Anexperimental procedure are cried of Premixed Methan, Butan, and Propan have cared thewith air mixture at 25Co , 75Co , 100Co , and 125Co of unburned gases temperaturescondition have been detected practically for wide range of equivalence ratio by usingschlieren's photography method for tube burner.The effect temperature and equivalence ratio on new factor are studies. Verticaldead space has been detected, and effect of this dimension has been study. The burningvelocity recalculation by new technique and compares with calculation by CCM, andfind the percentage error is less than 10%.
https://etj.uotechnology.edu.iq/article_29184_78d03b9921879d4649a987cf11005efb.pdf
eng
University of Technology-Iraq
Engineering and Technology Journal
1681-6900
2412-0758
2009-02-01
27
3
405
417
10.30684/etj.27.3.1
29157
Palmprint Characterization Using Multi-wavelet Transform for Human Identification
Hana M. Salman
1
The human hand presents the source for a numerous of physiological biometricfeatures, from these are palmprint, hand geometry, finger geometry and the vein pattern onthe dorsum of the hand, are mostly used in many fields for different applications. Lines andpoints are extracted from palms for individual identification in original image or frequencyspace. In this paper, a preprocessing to extract the central part from the input palmprintimage, next a 2-D multi-wavelet transform is used to convert the palmprint image into 16sub-bands, and the texture feature vectors, energy and entropy for each of the 16 sub-bandsis computed and normalized with min-max method for individual identification. Thecorrelation distance is used as a similarity measure. The experimental results point up theeffectiveness of a method in either using low resolution or noisy images
https://etj.uotechnology.edu.iq/article_29157_1f896283239bd7e600c91f22a8048686.pdf
human
Biometrics
Palmprint
multi
Wavelet
Texture Feature
correlation
eng
University of Technology-Iraq
Engineering and Technology Journal
1681-6900
2412-0758
2009-02-01
27
3
418
424
10.30684/etj.27.3.2
29160
The Effect Of Blending Of Linear Low –Density Polyethylene On Mechanical Properties Of High Density – Polyethylene
Najat J.Saleh
1
Nabeela A. Mohammed
2
High – density polyethylene is an important commercial polymer and it is widelyused for different engineering applications. In the present work, polymer blends werefabricated by mixing two types of polyethylene, high – density polyethylene was mixedwith different weight percent of linear – low – density polyethylene using two – rollmill, the mixing machine was operated at a temperature of 135oC.A series of standard tests (destructive), tensile, impact, hardness, and compressionwere carried out on the prepared samples it was found that the addition of linear – low –density polyethylene to the high – density polyethylene leads to decrease in the modulusof elasticity, tensile strength, tensile strength at break and increase in the % elongation atbreak.For the impact test it was found that the addition of linear – low – densitypolyethylene caused an increase in the impact strength of the material, the polymer blendwith 45 % wt of linear – low – density polyethylene gave the highest value of impactstrength.On the other hand the hardness test was carried out and it was found that the additionof linear – low – density polyethylene leads to decrease the hardness of the polymerblends. Therefore, the neat high – density polyethylene gave the highest hardness value.
https://etj.uotechnology.edu.iq/article_29160_f9fe4cd4101604dd545b0be7b5593630.pdf
HDPE
eng
University of Technology-Iraq
Engineering and Technology Journal
1681-6900
2412-0758
2009-02-01
27
3
425
444
10.30684/etj.27.3.3
29161
Predicting Mechanical Properties of High Performance Concrete by Using Non-destructive Tests
Shakir A. Al-Mishhadani
1
Waleed A. Al-Qaisi
2
Sura F. Al-Khafaji
3
In this study, high performance concrete mixes were produced by using highrange water reducing agent and also by using 10% silica fume or 10% highreactivity metakaolin as a partial replacement by weight of cement. Three cementcontents (350, 450, and 550) kg/m3 were used through this study. A total of 330(100 mm) cubes, 132 (100×200 mm) cylinders, 132 (100×100×400 mm) prisms,and 66 (150×300 mm) cylinders were casted and cured to the required age of test .All specimens were cured in tap water except 165 cubes, which were submerged inCl ˉ + SO4ˉ ˉ solution at concentration identical to those present in severeaggressive environment to study the effect of this solution on the compressivestrength of high performance concrete mixes. Compressive strength, splittingtensile strength, modulus of rupture, static modulus, rebound number, ultrasonicpulse velocity, dynamic modulus, initial surface absorption, density ,and totalabsorption tests were investigated for all mixes at 7, 28, 90, and 120 days age.Results of the destructive tests (compressive tensile strength, strength, splittingmodulus of rupture, and static modulus) and non–destructive tests (hammer,ultrasonic pulse velocity, and dynamic modulus) are statistically analyzed by usingSPSS Ver.15 software to study the possibility of predicting the mechanicalproperties of high performance concrete by using non–destructive tests. Simple andmultiple linear regression analysis of the obtained results leads to the proposedstatistical models for evaluating the compressive strength, splitting tensilestrength, modulus of rupture, and static modulus by using one or two or three ofthe above mentioned non–destructive tests. Analysis of variance (ANOVA)and t–test was also used to investigate the adequacy of the statistical models.
https://etj.uotechnology.edu.iq/article_29161_9213b4c2bde4ebc475880aa0f9015b71.pdf
high performance concrete
Mechanical properties
non
destructive Tests
Superplasticizer
Silica fume
High Reactivity Metakaolin
eng
University of Technology-Iraq
Engineering and Technology Journal
1681-6900
2412-0758
2009-02-01
27
3
445
453
10.30684/etj.27.3.4
29162
Evaluation of Bearing Capacity from Field and Laboratory Tests
Azad Abbas Ahmad
1
Qasim Abdulkarem JassimAl-Obaidi
2
Ali Abdulkadhim Jasim Al-Shamcy
3
In this work, the comparison between the values of bearing capacity of soildetermined by two different methods, the first method is field plate load test and thesecond method is several laboratory tests. The study find out that the allowable bearingcapacity estimated from the first method widely near from its value computed by secondmethod. Also this study confirm the probability of using Plate load test for estimatingsoil bearing capacity for small jobs and shallow layer depth to avoid usingcomprehensive soil investigation and economizing both cost and time. Empiricalrelation ship for bearing capacity estimation achieved from the results of the twomethods by using stiff brown silty clay soil at Erbil governorate - north of Iraq.
https://etj.uotechnology.edu.iq/article_29162_6b95124d7b4862d51fb19da5cf94adaf.pdf
bearing capacity
Plate load test
Modulus of subgrade reaction
Unconfined Compression Test
soil settlement
eng
University of Technology-Iraq
Engineering and Technology Journal
1681-6900
2412-0758
2009-02-01
27
3
454
467
10.30684/etj.27.3.5
29163
The Effects of Bearing Dimensions and Adjustable Mechanism Position for Six Pads Bearing under Dynamic Load
Muhannad Zedan Khalifa
1
The hydrodynamic bearing consists of six pads these pads have the ability to tiltabout the clamping edge. Reynolds equation (2D) for dynamically loaded was used to findthe generated pressure value throughout the mobility method and the finite differencemethod. The effects of many parameters of bearing were studied in this paper such as lengthto diameter ratios, power loss, oil flow rate, Sommerfeld number, load number, frictioncoefficient and by using the “Ansys program” for stress and strain analysis over the padsurface (white metal), to select the best position location for adjustable pads mechanismfrom leading edge angle to trailing edge angle of pad central angle (PCA=55°) by takingnine different positions. The best angle for the adjusting member was found about (41.25o)after leading angle of the pad, the adjusting member in the maximum pressure region gaveminimum radial displacement (elastic deformation) values.
https://etj.uotechnology.edu.iq/article_29163_a693560aa2b81f7b0d25d2385c7391d6.pdf
non
circular bearings
adjustable mechanism
Hydrodynamic bearing parameters
eng
University of Technology-Iraq
Engineering and Technology Journal
1681-6900
2412-0758
2009-02-01
27
3
468
480
10.30684/etj.27.3.6
29164
Petroleum Single Cell Protein Production
Ahmed H. Abduljabbar
1
Shahrazad R. Raouf
2
Jasim Alhelu
3
This study focuses on producing single cell protein from petroleum fraction (ethanol, kerosene,gas oil) by growing two types of microorganisms (Candida sp. and Bacillus subtilis) on thesematerials as energy and carbon source , These two types of microorganisms are isolated fromcontaminated soils cv with petroleum derivatives brought from AL-Dorah and Beji refineries , fuelstations ,and garages . At the first stage the microorganisms are cultivated on different media (bloodand nutrient agar ) and on mineral salt medium (MSM) to identify on genus of each type . After this, the microorganisms are grown on different concentrations of ethanol , kerosene , gas oil (0.5, 1.0,2.0, 3.0, 4.0 ( v/v)% ) at 7.4 pH and 32°C temperature . In the second stage the microorganisms aregrowing in still liquid culture at the same conditions . In this stage the yield percent, number of cellper milliliter , and biomass weight are calculated for either type of microorganisms. Compositerotatable Box –Wilson experimental design is adopted to design the experimental work .Statistically , the response functions (i.e. yield percent of ethanol , kerosene , gas oil ) are related tothe most effective variables on single cell protein (SCP) production . The temperature is fixed at32°C at this stage also, because the range of temperature growth of these microorganisms is narrow(30 to 34°C) , where there is no significant effect at this range of temperature. Concentration andpH are ranged between 0.5to 4.0% and 7.0to9.0 respectively . Optimum conditions are determinedand found equal to 7.36 for pH and 1.31% for concentration for ethanol , 7.42 and 4.0% forkerosene, and 7.51 and 4.0% for gas oil .The percentage of crude protein was evaluated accordingto Kjedhal method . The maximum protein content was 61.25% which was closed to the resultsobtained by previous studies. The bioassay was carried out using chicken embryos , where chickeneggs were used for this purpose. The result of bioassay was 83.5% of successful eggs , which isacceptable with the percent given by Kohen Lee.The last stage is designing a batch bioreactor andcalculating all process parameters depending on the results of experimental work in pervious stages, In general , the characteristics of (SCP) production using two types of microorganisms are agreedwell with general characterization of (SCP) production that accommodates the general concepts of(SCP) production .
https://etj.uotechnology.edu.iq/article_29164_228bd01778fc53be292731abe08fff67.pdf
SCP Production
Single Cell Protein
eng
University of Technology-Iraq
Engineering and Technology Journal
1681-6900
2412-0758
2009-02-01
27
3
481
495
10.30684/etj.27.3.7
29165
Hydrodynamics Of Two Phase Flow For Coalescing And Non Coalescing Systems
Hiba M. Abdullah
1
Thamer J. Mohammed
2
Mohammed F. Abid
3
This experimental study is aimed at investigating the effect of superficial gasvelocity, liquid phase properties and gas distribution on gas holdup, bubblecharacteristics and drag coefficient in two-phase bubble column. Various liquidscovering a sufficiently broad range of viscosity and surface tension values wereemployed, while the gas phase was atmospheric air. Aqueous glycerine solutions wereused to simulate the behavior of coalescing viscous liquids whereas aqueous alcoholsolutions were used to simulate the behavior of non-coalescing organic liquids. Theexperimental results obtained with two different types of gas distributor in thecoalescence solutions and in non coalescence solutions were compared with data onstandard air–water system. A computerized conductivity probe system and high speeddigital camera were used for the systematic measurements of bubble size, velocity andgas hold-up. Correlations based on dimensionless groups were proposed for theprediction of gas holdup and drag coefficient in the homogeneous flow regime.
https://etj.uotechnology.edu.iq/article_29165_80351d6170d0445b4b0b3d30864d0565.pdf
Hydrodynamics
Two
Phase Flow
Drag Coefficient
Coalescing System
Non Coalescing System
eng
University of Technology-Iraq
Engineering and Technology Journal
1681-6900
2412-0758
2009-02-01
27
3
496
512
10.30684/etj.27.3.8
29170
Spectral Analysis of Some Selected Hydrochemical Parameter Of Diyala River
Aqeel S. Al-Adili
1
Qusay A. Al-Suhail
2
Some selected hydrochemical parameters of Diyala river including electricalconductivity (EC), 132 14Ca+2 ,Mg+2 ,SO- ,Cl - ,HCO- , total soluble solids (T.S.S.),discharge (Q) and total hardness(TH) were analyzed for their periodicities using monthlymeasurements for the period 1993-1997, to quantify and qualify surface water andinvestigate the periodicity behavior of these parameters. Results showed significantautocorrelation for all the studied series and therefore they were subjected to the Spectral(Fourier) analysis to investigate the main periodicities that contribute to the totalvariance of the observed data. Most of the selected parameters have strong (lessfrequent) semi-annual and biannual cycle, as well as seasonal cycle for, Cl, Mg, Ca, SO4,HCO3 ,TSS , and EC. These results reveal the variation of the factors affecting the riverwater quality including hydrological and meteorological conditions as well as the impactof human activities through the river catchments river.
https://etj.uotechnology.edu.iq/article_29170_eab081f0d1c41e9066a8ce8e6da947d4.pdf
Periodicities
Spectral
Harmonic analysis
autocorrelation
eng
University of Technology-Iraq
Engineering and Technology Journal
1681-6900
2412-0758
2009-02-01
27
3
513
533
10.30684/etj.27.3.9
29171
Properties of High Performance Lightweight Concrete Sandwich Panels Using Local Additives
Husain M.Husain
1
Zain A. Raouf
2
Wasan I. Khalil
3
The main aim of this investigation is to produce high performance lightweight concretesandwich panels consisting of two layers of mortar having different mesh reinforcementand feeded polystyrene concrete core in between. Locally pozzolanic material (ultra –fine feldspar) is used to produce the high performance mortar as partial replacement ofcement. The effect of various factors such as core thickness, volume fraction and type ofreinforcement (polyimide grids, polypropylene meshes and chicken wire meshes) hasbeen investigated. The work covers the physical properties of the mortar and polystyreneconcrete core. Also the structural properties and behaviour of eight series of 1000mmlength and 200mm width concrete sandwich panels with two reinforced mortar faces of20 mm in thickness and core of 30 and 50mm in thickness from polystyrene concretewere investigated by nondestructive and destructive methods.The nondestructive tests included the density and dynamic modulus for mortar andpolystyrene concrete. Also the density and dynamic properties of the concrete sandwichpanels as a whole (dynamic modulus of elasticity, Poisson’s ratio and stiffness constant)were determined by ultrasonic pulse velocity. Flexural properties such as, first crack andultimate loads, moment capacity, modulus of rupture, resilience, ductility and toughnessof the concrete sandwich panels were investigated from the destructive tests .The results show that the ultimate moment increases as the core thickness and thevolume fraction of different types of reinforcement increase and the modulus of ruptureincreases as volume fraction of reinforcement increase. Also it was shown that concretesandwich panels with high toughness and ductility can be obtained by using polyimidegrids or polypropylene meshes to reinforce the compression and tension faces of thepanels.
https://etj.uotechnology.edu.iq/article_29171_54648e4b635a257f133dcbb406b5d802.pdf
eng
University of Technology-Iraq
Engineering and Technology Journal
1681-6900
2412-0758
2009-02-01
27
3
534
558
10.30684/etj.27.3.10
29172
Vibration Analysis of Sudden Enlargement Pipe Conveying Fluid with Presence of Heat Flux
Mauwafak A.Tawfik
1
Zena K.Kadhim
2
Ruaa Y. Hammoudi
3
The vibrated pipe conveying fluid with sudden enlargement and exposed to heat flux is studying in this paper. The governing equations of motion for this system are derived by using beam theory. The effect of external force that applied at the mid length (at the enlargement) of the pipe is studied. The transfer matrix method is a technique that used in this study. From this technique it can be compute the natural frequencies, mode shapes, deflection, slope, bending moment, shear force, velocity, and pressure for different cases of pipe conveying fluid (with and without heat flux), also the effect of forced vibration on these parameter are presented. Different types of supports are used to show the effect of changing the support's type on the behavior of this system at different fluid velocities and heat flux. Also the effect of change the values of fluid velocities and heat flux on the Coriolis and compressive force are studied. The results of this study are compared with the results that found from ANSYS program, also another comparison is made with the last investigation. Those comparisons show good agreement.
https://etj.uotechnology.edu.iq/article_29172_d783f3630ebe697c6c0785225069a24f.pdf
Sudden Enlargement Pipe
Vibration in Pipe
Pipe Conveying Fluid with Heat Flux
eng
University of Technology-Iraq
Engineering and Technology Journal
1681-6900
2412-0758
2009-02-01
27
3
559
572
10.30684/etj.27.3.11
29173
Harmonics Distribution in Electrical Power System Containing Static Var Compensator
Mohammed K. Edan
1
This research presents a harmonic analysis of the power system with static VARcompensator. The model is formed by parallel combination of Thyristor ControlReactor (TCR) with a bank of capacitor .This model based on use of harmonicswitching functions and this harmonic model is completely general and can beinterpreted as a harmonic admittance equivalent. It is suitable for directincorporation into the harmonic domain frame of reference where it combineseasily with frequency dependent admittances of the transmission network, andwith other linearised component. This approach leads to efficient iterative solutionof power networks containing TCR. The general operating condition correspondsto a case, when the switching instant of thyristor valve are function of networknodal voltage conditions, this applies to both thyristor turn-on and turn-offinstants. In such situation the voltage zero crossing points calculated with goodaccuracy at each iterative step, are used to update the TCR switching function.Newton-Raphson technique is used to determine the zero-crossing points.
https://etj.uotechnology.edu.iq/article_29173_50951f62be41ade6e76d94faa123a1be.pdf
harmonics
Static var compensator
Harmonic analysis
eng
University of Technology-Iraq
Engineering and Technology Journal
1681-6900
2412-0758
2009-02-01
27
3
573
583
10.30684/etj.27.3.12
29174
Designing of Computer Aided Visual System for Workstations Layout Planning Based on Efficiency Criteria
Zainab A.Ibrahim
1
Layout planning in industrial plants means planning the location of all machines,utilities, workers, workstations, and department...Etc.five basic types of layout, fixed-position,cellar, process, product &hybrid. This research study Product layout problem through studyproblem of arranging number of machines, workers, workstations on a production line in wayachieves uniform materials flow, this problem is known as single row facility layout, thisproblem is very difficult to be solved in fact. The aim of the research is to designs and buildscomputer aided visual planning system to study product layout problem, helps the managementin layout planning process and in decision making about the workstations arrangement based onefficiency criteria. The suggested planning system was built by Auto lisp language and displaythe system outputs on computer screen in two ways visual diagram (workstation timeworkstationnumber), calculated outputs (actual cycle time, workstations number, efficiencyactual daily production rate) .the suggested system was applied on lawn mower production linegets from reference to show the sequence of system working, inputs & visual outputs, so thesystem will study all possible workstations layout. Current workstations arrangement consists ofseries four workstations& line Efficiency=81.82%, the efficiency can improve &increases to90% by re-arranges the workstations& distributes the total work in five serial workstations.
https://etj.uotechnology.edu.iq/article_29174_5b452f1b60f92c9fc8ea75d198021f69.pdf
Layout planning
product layout
Production line
Single line
Efficiency
eng
University of Technology-Iraq
Engineering and Technology Journal
1681-6900
2412-0758
2009-02-01
27
3
584
591
10.30684/etj.27.3.13
29175
Analysis of Linearity Response and Spectral Responsivity in CdS Photoconductive Detector
Selma M. H. Al- Jawad
1
Ali M. Mousa
2
Thin films of cadmium sulfide have been deposited by chemical bath deposition.The effect of temperature and time deposition on spectral responsivity for CdSphotoconductive investigation. The effect of temperature bath and time depositionwhere study. Linearity response of photoconductive detector were carry on analyzingthe light current with incident power curves. The results show that high spectral nonsaturated responsivity was achieved, further the detector were manufacture with lowcost.
https://etj.uotechnology.edu.iq/article_29175_9f0ca593d28da114b40330c3743048ac.pdf
CdS thin films
photoconductive detector
CBD
eng
University of Technology-Iraq
Engineering and Technology Journal
1681-6900
2412-0758
2009-02-01
27
3
592
599
10.30684/etj.27.3.14
29176
Simuation Study of the Factors Effect on the Directional Controllability of Vehicles
Ahmed N. Al-khazraji
1
This paper present the result of the work carried out the mathematical model of twodegree of freedom movement study the influence of cornering stiffness of tires, thedistance from the position of the center of gravity to front and rear axel and mass ofvehicles.Theoretical calculations have been carried out the vehicle have known mass and theposition of the center of gravity.Results show that for the state which is the front tires are bias ply tires and the rear tiresare radial ply tires is the best because the state gives under steer behavior. Also the statewill be the center of gravity nearest from the front axel gives the same behavior and alsoowing to the existence of center of gravity being nearest to the front axle.
https://etj.uotechnology.edu.iq/article_29176_fac38d8399aca9d25471c91236619e0e.pdf
mechanical engineering
model analysis
simulation
controllability
vehicles
eng
University of Technology-Iraq
Engineering and Technology Journal
1681-6900
2412-0758
2009-02-01
27
3
600
623
10.30684/etj.27.3.15
29177
Simulation and Application to Measure Comparable Performance of Push,Pull and Hybrid Manufacturing Systems
Hussein S. Ketan
1
Nahidh Jaffar K
2
In this paper we are going to integrate the most popular production systems nowadaysthat is; push ,pull production system, ,then we compare the performance of the integratedproduction model or the hybrid outcome system to push and pull, by introduce a technique thatoptimizes production control of single product flow shop under the three production controlthrough using the production control framework. Evaluating a production control policy usuallyrequires simulation modelling due to the complex interaction that occur,a point was considered bysimulation package exploit. Then we demonstrate how this template can be used in conjuctionwith this existing simulation software to find an optimal production control policy. Our decisionvariables are location of the push-pull interface. An experemental research prototype of suchpush, pull and hybrid control system has been constructed to emulate a motor production at realworld plant in which unit process and operational decisions are integrated. The simulationsoftware implemented to support the manufacturing system planning and its operationalcontrol.the system configuration, modelling feature and its verification modelling, feature and itsverification through an application of the practical manufacturing line will be described.
https://etj.uotechnology.edu.iq/article_29177_6bced65dbd0d4a0c8b0a6a713735b719.pdf
push
pull
Hybrid Systems
kanban
discrete event simulation