CATIA V5R20 Research Articles

Simulation model for different bolted precombustion chamber (PCC) for spark ignition engine

In an engine, two combustion chamber are present in the cylinder. First, the main combustion chamber and the other is called the auxiliary combustion chamber also known as pre-combustion chamber (PCC). The PCC size is small than the main combustion chamber size. In this research, four concept designs are developed for bolted PCC design. CATIA V5 R20 software is used for designing process. After that, Computational Fluid Dynamic (CFD) simulation is used to analyze each type of the bolted PCC powered with natural gas fuel by ANSYS Fluent 16.0 simulation software. Each of the bolted PCC simulation investigated by its flow behavior for the velocity vectors and turbulence kinetic energy (TKE). This PCC can give bigger effect to the engine performance by 10%–15% using natural gas as fuel source.

Analisis Kekuatan Struktur Retak Skin Fuselage Repair Pesawat B747-400

— Structure Repair Manual (SRM) is a manufacture guidelines issued by the MRO (Maintenance and Repair Organization) who have the authority to perform a repair aircraft. SRM function as an actual reference in doing a modification SRM repair. In its application modifications can be done by changing the layout variations and variations of fastener used. To determine the feasibility of a repair configuration modifications done by modeling and analysis to determine the maximum stress that occurs in both configurations. In this research, modeling and analysis using software CATIA V5R21. Created 2 configuration model that SRM structure repair and modification of the structure of SRM repair. Both models are given internal pressure load, while the fastener strength was tested by making a simpler model to provide tensile load. The maximum stress that occurs in structures that modification SRM repair is 18265 Psi by the internal pressure loading, whereas for tension loading cases amounted to 22380.9 Psi. Based on the margin of safety the modifications structure of SRM repair declared to be safer than SRM structure repair. Keywords : skin fuselage, repair, crack, SRM

Design and Analysis of Latch Access Panel of Aero Engine Components

Background/Objectives: To reduce the production cost by implementing Design for casting instead of machining a component. Methods/Statistical Analysis: A machined component is analysed for its strength to failure. Using casting allowable, the same component is re-analysed and verified for feasibility. The design is compromised without making changes at the interfaces so that the installation is simple. Finally the weight is compared to conclude the application of appropriate production method for cost effectiveness. CATIA V5R21 software is used for designing and PATRAN/NASTRAN is used to analyse the components. Findings: Based on the analysis results critical portions are identified and further changes have been made based on casting design without disturbing the critical portions of the components. The redesigned casting model is analysed to monitor further changes and to find effective method of manufacturing. Application/ Improvement: In this paper, analyses have been made for conventional model and casting design model using PATRAN/ NASTRAN software. Further research will show the effective method to manufacture Aero Engine components.

TECHNOLOGY ANALYTICAL COMPARISION OF DISC BRAKES WITH LINEAR AND CURVED SHAPED SLOTS BETWEEN PLATES FOR STRUCTURAL ANALYSIS ON DIFFERENT PARAMETER USING THROUGH CATIA V5 R20 AND ANSYS 15.0.7

The process which converts the kinetic energy of the vehicle into mechanical energy is known as Braking, which must be dissipated in the form of heat. The device using for decelerating or stopping the rotation of a wheel is called as disc brake. A brake disc (or rotor) usually made of linear shaped slots between plates and a disc brake ( or rotor) usually made of curved shaped slots between plates having materials used in both is Structural Steel, is connected to the wheel and/or the axle. Friction material in the form of brake pads (mounted on a device called a brake calliper) is forced mechanically, hydraulically, pneumatically or electromagnetically against both sides of the disc to stop the wheel. The present thesis topic is generally deals with the improved analysis on Structural Analysis on two different models one have linear slots and other have curved slots between the two plates of disc brakes, using of ventilated disc brake using CATIA v5 R20 and ANSYS15.0.7 we found that ventilated disc having curve slot have less development of strain and stress in comparision of ventilated disc having linear slot on same parameter. In this research Coupled Analysis (of both different shaped slots) is performed in order to find the strength of the disc brake. In structural analysis displacement, ultimate stress limit for the design is found as an important factor.

Design and Fabrication of Automatic Glass Cutting Machine

This paper deals with the design and fabrication of the automatic glass or mirror cutting machine. In order to increase the accuracy of cut and production rate; and decrease the production time and accidents caused due to manual cutting of mirror or glass, this project aims at development of an automatic machine which uses a programmable logic controller (PLC) for controlling the movement of the conveyer and also to control the pneumatic circuit. In this machine, the work of the operator is to load and unload the mirror. The cutter used in this machine is carbide wheel with its cutting edge ground to a V-shaped profile. The PLC controls the pneumatic cylinder and intern actuates the cutter along the glass, a fracture layer is formed causing a mark to be formed below the fracture layer and a crack to be formed below the rib mark. The machine elements are designed using CATIA V5R20 and pneumatic circuit are designed using FESTO FLUID SIM software.

VIRTUAL CONCEPTUAL DESIGN AND ANALYSIS OF MULTIFUNCTIONAL ROBOT

In the actual world, any unremitting medium deforms under the application of force. Rigid body simulations do not confine such deformations and may lead to inexact results. As a virtual prototype replaces physical prototype, tests can be carried out to validate the design of the product. Virtual prototype of multifunctional robot is developed to simulate the system level working with live stress distribution, which is designed to lift a specific payload. In this work, a miniature Computer Control Robotic Vehicle (CCRV) with five degrees of freedom (5DOF) robotic arm has been designed and developed. The main objective of this article is to design and analysis of Robot manipulator is to lift 500gm Payload is divided into two parts. In this paper design and analysis will rely heavily on design and analysis tool, namely CATIA V5R19 and NASTRAN/PATRAN.

DESIGN OF BACKUP STIFFNESS BRACKET AND INERTIAL MASS SURFACE FOR TESTING AIRCRAFT AIRBRAKE ACTUATOR

Abstract All aircraft motion or maneuvers are regulated by control surfaces which are operated by the pilot from the cockpit. The flight control surfaces are classified into primary control surfaces and secondary control surfaces. Airbrake is a secondary control surface. For operating the airbrake, a linear hydraulic actuator is used. This airbrake actuator has to undergo Hydro Mechanical Oscillation (HMO) test with backup mounting and airbrake surface inertia similar to that of the aircraft. In order to ascertain the stability of operation of the actuators throughout the operating frequency range, HMO test will have to be carried out mandatorily for all airbrake actuators. The test setup for HMO consists of an equivalent airbrake surface along with the actuator and backup stiffness bracket as same as that of aircraft surface. In order to validate the backup stiffness bracket a known force is applied on the bracket and deflection due to this force is noted. The stiffness obtained thereafter shall be same as that of aircraft backup stiffness. Also the equivalent airbrake surface used during the test shall have the same weight, center of gravity and inertia as that of actual aircraft airbrakes. In this paper, the design of backup stiffness bracket for airbrake actuator is been detailed. The validation of design is done theoretically as well as by using CATIA V5 R21 CAD package.

The Research and the Development of the 3D System Platform of Shafting Parts Based on CAA

The enterprises when the designer worked with CATIA. In order to improve the efficiency, the research took the shaft parts as the research object to realize the secondary development of CATIA V5R18. The development platform of Shafting parts was set up through the embedded component development environment of CATIA CAA RADE and CAA API and was based on the development platform of VC++. At the end, this paper took the typical parts as examples to introduce the method of system operation. The test results show that this system could realize the rapid design and enhance the design efficiency, and it could provide the experience for the deeper development of CATIA.

An Investigation of Transient Thermal Analysis of 1st Stage Gas Turbine Blade Manufactured by Directional Solidification and Mechanically Alloyed Nickel-Based Superalloys

The turbine rotor blades of a gas turbine engine are designed for operation at elevated temperatures, particularly first stage gas turbine blades. During operation, the turbine blades are subjected to high temperatures and large centrifugal forces. In addition to these, the temperature variations occur at start-up and shutdown cycles of the engine. Due to sudden changes in temperature, transient thermal effects are sighted and time-dependent temperature gradients appear. The estimates of the thermal variations sighted on the turbine blade at various operational speeds of the gas turbine rotor are important in determining the fatigue life. The thermal condition during the startup sequence initiated is considered as a major factor in determining the rotor maintenance interval and individual rotor component life. This work has primarily focused on transient thermal stresses arising in the rotor blade by using Finite Element Analysis. Nowadays, the thermal stresses of the gas turbine parts are determined by user defined software’s that is based on numerical methods which are being used significantly. A typical turbine rotor blade has been modeled by using CATIA V5R21. Turbine blades are made of Nickel-based superalloys have been selected for transient thermal analysis by using ANSYS 15.0. Comparative analysis has also been carried out to determine the suitability and strength of turbine blade material under the same operating conditions. Two blade materials such as IN 792 DS and IN 754 MA have been selected for comparative analysis and these blades were manufactured by Directional solidification and mechanical alloying methods respectively. The physical and mechanical properties are updated to the model and appropriate boundary conditions are applied. Thermal stresses are evaluated for both materials and the results have been compared with IN 738 LC. Static analysis has also been carryout out to examine the structural performance of the alloys. It has been observed that maximum stress and strain are sighted near the root of the turbine blade. The temperature gradients sighted on the turbine blade during acceleration and decelerations are below the melting temperature of the blade materials. It has been noticed that the transient thermal stresses are higher than the steady state thermal stresses. It has been observed that IN 792 DS has better physical and thermo mechanical properties that can withstand higher turbine inlet temperatures and could be suitable material for the manufacturing of turbine blade at Marine and Related Environments.

Design and Modelling of Hemispherical and Flat Dish End Pressure Vessel

Pressure vessels are widely used in industries for processing and storing fluids which are at different temperature and pressure in analogous to ambient. The design of these pressure vessels become the most paramount factor as any discrepancy would cause the vessel to explode, leading to injure many humans and failure of the setup. This paper designs the pressure vessel according to the pressure vessel handbook for both hemispherical and flat dish end pressure vessel so as to determine the most economic and efficient design. The various stresses engendered within the vessel were calculated and were learned to be within the permissible limits. The outer and inner diameter of the vessel was found to be 607mm and 480mm and the thickness of the vessel was determined to be 63.5mm. This design could withstand an internal pressure and temperature of 150psi and 500°F. The dimensions obtained from the design were further used to model both hemispherical and flat dish end pressure vessel with help of CAD in Catia V5R19.

Simultaneous parametric optimization of IPMC actuator for compliant gripper

Ionic Polymer Metal Composite (IPMC) exhibits artificial muscle behavior while subjected to change in voltage, frequency and doping solutions. Here, an attempt has been made to actuate a miniscule compliant gripper by a pair of IPMC strips. To obtain substantial displacement and force to actuate the compliant gripper, a full factorial experimental layout was laid by considering three levels of voltage (1.5 V-3 V-4.5 V), frequencies (0.1 Hz-0.01 Hz-0.001 Hz) and doping solutions (KCl, NaCl and Distilled Water). Grey Relational Analysis was adopted to turn multi-objectives (force and displacement) into a single objective and the best parametric combination was found as ds-1-f+1-v+1 [KCl 1.5 (N)-0.001 Hz-4.5 V]. Response Surface Modeling (RSM) and ANOVA was adopted to correlate the force and displacement in terms of the process parameters (Voltage and Frequency). At the optimized parametric condition, IPMC strips provided actuating force and displacement of 4.8 mN and 3.24 mm respectively. A small compliant two-jaw gripper was modeled in CATIA V5-R20 and through ANSYS 14.0, it was observed that, at 1.5 mm gripper thickness, each jaw-tip flexed by 1.56 mm. Afterwards, the gripper was fabricated with PDMS material and IMPCs were able to flex each jaw by 0.87 mm. The gripper was observed to grip objects with maximum of 1.247 gms of weight.

A Study on Air Flow Analysis of Compressor for Air Lumber Support Applied to Automobile Seat

The present article is a study on flow analysis for compressor as an air producing apparatus for air lumber support applied to automobile seat. The compressor type for application is a swash plate pump where 4 EA of plungers are operated sequentially. After modeling of the product, working pressure for each part, flow direction, flow velocity, flux of fluid are derived for analysis. For this purpose, analysis is made by using Analysis finite element analysis program after 3D modeling of swash plate compressor used for air bag type of lumber support with CATIA V5 R18 program. Processes where 4 pumps are sequentially operated during 1 stroke, and flow velocity and pressure of air at that time are obtained from the piston for analysis. Based on this result, major design factor variables are derived to allow application upon design.

3D Parametric design and static analysis of the first Spanish winch used to drain water from mines

<p>En el presente artículo se analiza en detalle la primera máquina malacate desarrollada en España utilizada para la extracción del mineral. Se trata de un privilegio de invención diseñado por Bernave Dombon en 1850. En particular, se ha realizado el diseño paramétrico 3D con ayuda de software específico (Catia v5 R21) de cada uno de los elementos que componen el conjunto. Asimismo, una vez obtenido el modelo 3D, se ha realizado un análisis funcional estático mediante técnicas de Ingeniería Asistida por Ordenador realizado gracias al concurso del software de análisis por elementos finitos Simulia Abaqus v6.14-1, basadas en el análisis de las deformaciones, desplazamientos y tensión de von Mises, comprobando que las mayores concentraciones de tensiones se producen en el eje y en la estructura que soporta el tambor, y que la mayor concentración de desplazamientos se encuentra también en el eje del tambor, aunque no se produce en ningún caso la rotura de los elementos, por lo que resulta un conjunto bien dimensionado. </p>

Numerical analysis of stresses in mine excavator bucket

Excavator plays a vital role in mining industry and bucket is one of its most important components as failure of excavator bucket causes loss of production. In this paper, static analysis of excavator bucket (Tata JD 315SJ Model 2006) made of Hardox 400 alloy has been done. A solid model has been developed in CATIA V5 R18 Software by considering actual dimension of the bucket. The analysis of the model has been done by ANSYS WORKBENCH 14.0 Software. Static analysis of bucket has been done by assuming bush as a fixed component and load is applied on the teeth. Meshing of bucket is done with fine mesh with element size 0.15 to get more accurate result. Finite element analysis of bucket is done to find out equivalent von misses stress and equivalent von Mises strain acting on the bucket. Total deformation and directional deformation is also calculated by finite element method. Maximum stress developed and section prone to early failure is found out by this analysis. Results state that equivalent von Mises stress value is less than yield stress of material.

Modeling and analysis of impact energy absorber by using ls dyna

Today’s car is one of the most important things in everyone’s life .Every person wants to have his or her own car but the question that arises in each buyer’s mind is whether the vehicle is safe enough to spend so much of money so it is the responsibility of an mechanical engineer to make the vehical comfortable and at the Same time safer. Now a days automakers are coming with various energy absorbing devices such as crush box, door beams etc. this energy absorbing device s prove to be very useful in reducing the amount force that is being transmitted to the occupant. In this we are using impact energy absorber in efficient manner as compare to earlier. The various steps involved in this project starting from developing the cad model of this inner impact energy absorber using the CAD software CATIA V5 R19. Then pre-processing is carried out in HYPERMESH 11.0 which includes assigning material, properties, boundary conditions such as contacts, constraints etc. LS-DYNA971 is used as a solver and LS-POST is used for the post processing and results obtained are compared to the standards. By carrying out this idea it has been observed that there is a considerable amount of energy that is being absorbed by this energy-absorbing device. Along with this energy absorption, the intrusion in passenger compartment is also reduced by considerable amount. So for safer and comfortable car with inner impact energy absorber is one of the best options available. This will get implement by this research work.

Effective Material Handling System for JIT Automotive Production Line

Since the past two decades, small, medium and large automotive industries have grown rapidly and globally in Malaysia in line with the increasing of demand from customers. To increase market share and sustain in industry, most of the companies continuously applied world-class manufacturing techniques such as Lean Manufacturing, Toyota Production System, Just-in-Time (JIT), Kanban, Kaizen, Six Sigma and others. In order to achieve world class manufacturing status such as on-time delivery, high quality and high production efficiency, an effective material handling system is necessary to support production processes. Based on observation at a JIT automotive assembly line of a local automotive manufacturer in Shah Alam, it was found that the existing material storage system used was bulk storage called as wire mesh and trolley. Also, the material handling activities were run without referring to any standard or procedure. Therefore, the aims of this case study are to design a new storage system for an automotive component which is Air Cleaner by using computer aided design software, CATIA V5R20 and to evaluate its’ effectiveness by using a computer aided manufacturing software, DELMIA Quest. Improvement will be made on the existing material handling system by introducing new standard poly-boxes and a gravity flow rack system for material handling activities. The results obtained from the computer simulation were compared to the existing performance of the line. Inventory level has managed to be reduced by 74% while space utilization reduced by 18.18%.

Automated Concept of Potato Sizing Equipment

Abstract The paper presents an automated concept of a potato sizing equipment. The technological flow is represented by dimension charts done in the software CATIA v5 r18. The classical technological flows of potato sizing are rigid systems, but modern systems are flexible and have modular construction. Modular construction has the advantage that when a component of the equipment breaks out, it can be moved away and thus not affecting the entire equipment. The role of automation is illustrated by the designing of an original potato sizing machine, based on the real geometrical quotation.

Effect of type of luting agents on stress distribution in the bone surrounding implants supporting a three-unit fixed dental prosthesis: 3D finite element analysis.

Osseointegration of dental implants is influenced by many biomechanical factors that may be related to stress distribution. The aim of this study was to evaluate the effect of type of luting agent on stress distribution in the bone surrounding implants, which support a three-unit fixed dental prosthesis (FDP) using finite element (FE) analysis. A 3D FE model of a three-unit FDP was designed replacing the maxillary first molar with maxillary second premolar and second molar as the abutments using CATIA V5R18 software and analyzed with ABAQUS/CAE 6.6 version. The model was consisted of 465108 nodes and 86296 elements and the luting agent thickness was considered 25 μm. Three load conditions were applied on eight points in each functional cusp in horizontal (57.0 N), vertical (200.0 N) and oblique (400.0 N, θ = 120°) directions. Five different luting agents were evaluated. All materials were assumed to be linear elastic, homogeneous, time independent and isotropic. For all luting agent types, the stress distribution pattern in the cortical bone, connectors, implant and abutment regions was almost uniform among the three loads. Furthermore, the maximum von Mises stress of the cortical bone was at the palatal side of second premolar. Likewise, the maximum von Mises stress in the connector region was in the top and bottom of this part. Luting agents transfer the load to cortical bone and different types of luting agents do not affect the pattern of load transfer.

Fluidity Test of Al-Si Alloy Using by Computer Simulation

Fluidity is the basic foundry property. The fluidity of AlSi alloy in real condition with computer simulation were compared. In this test was used two types of molds: horizontal molds with tree canals and vertical molds with six canals wich had different diameter (4,5; 6,5; 8,5; 10,5; 12 and 14 mm). As experimental material was used AlSi10MgMn (EN 1706) alloy. Range of pouring temperature was between 605°C to 830°C. NovaFlow&Solid soft commercial software package was used for numerically simulating the fluid flow of molten metal. The model of fluidity test was created by CAD system CATIA V5 R19. Measurement systems analysis (MSA), the analysis of the variance (ANOVA), t-test and the analysis of correlation were used for the evaluation. Youden plot was used for evaluation of the impact of operators on the errors. Values of fluidity for each temperature level obtained by the horizontal mold have a high degree of agreement with those obtained by computer simulation. On the contrary, the values, obtained by the vertical mold are more sensitive to the operator. This fact caused the match between the simulation and a practical experiment is only partial.

Design of the Tool for Production of Ear Ventilation Tubes

This work deals with a development of a tool for ear ventilation tube production. Ear tubes are medical devices, which allow ventilation and provide pressure equalization in the middle ear cavity for prolonged period of time; in case of repetitive inflammation. These implants are normally made from metals or classical polymeric materials. Whereas, today, the effort is to develop bioresorbable tubes based on polylactic acid, which could replace currently used material. The benefit provides no requirement of secondary surgery for their removal. The size of ear implants is only in millimetres and the tool for their manufacturing requires a special technology. In this paper, two tubes and a transfer mold for their production was designed using 3D CAD software Catia V5R18. Subsequently, the special manufacturing process for the mold cavity plates using the rapid prototyping and electroforming technology was proposed. The designed tool is intended for biodegradable tubes, which will be further tested in the laboratory.