CATIA V5 Software Research Articles

Numerical Analysis of Intake Valve of CI Engine

Internal combustion engines are considered as complex system. The important aspect of any engine is power output which, largely depends upon the proper combustion of air fuel mixture. The aim of this research work is to outline the improve performance of Four stroke Compression Ignition engine by modifications in Inlet manifold geometryThe study is performed on Kirlosakr CI engine. At beginning design of existing inlet valve was studied and CAD drawing is prepared in CATIA V5 Software. Based on existing design and work done by various researchers new modified inlet valve with addition of small plate, is designed in CATIA V5 Software. The numerical investigation is performed using Ansys CFX solver in 14.5 In numerical simulations Engine with two ports is considered to be designed to study the movement of air flow

Influence of school backpacks on spinal column load in primary school students

Background: The problem of heavy school bags is a global problem recognized in many countries in Europe and the world, including in Bosnia and Herzegovina. In addition to poor posture habits, sedentary lifestyles and insufficient physical activity, school bags is one of the main causes of low back pain and deformity in pupils. The recommendation of the World Health Organization (WHO) is that the weight of the school bag should not exceed 10% of the student's weight. However, in practice these limitations are far from reality with the obvious problems caused by too heavy bags. The aim of the paper is to identify and analyze the backbone load caused by the overweight school backpacks in real school work conditions and eliminate them by creating new solutions that are in line with ergonomic and biomechanical principles, as well as the recommendation given by WHO. Methods: The research included first grade primary school students at the age of seven, including their parents. The research began by interviewing parents with relevant questions, as well as measuring the students’ height and weight and the weight of their school backpacks. The analysis was performed in CATIA v5 software package (Dassault Systemes, Velizy-Villacoublay, France) using its advanced biomechanical modules. By knowing the anthropometric and work environment data with ergonomic design and analysis, the biomechanical analysis, rapid upper limb assessment (RULA) and carry analysis were performed. Results: The conducted survey showed that 84% of students walk from home to school nineteen minutes on average and that 77% of them carry their school backpacks independently. Based on the measurements, it has been shown that, on average, the weight of the school backpacks is well above the WHO recommendation. A study conducted on a representative sample of students confirmed the relation between fatigue and spinal pain caused by carrying a heavy school bag. Computer analysis showed excessive loads on the spinal segment of L4/L5 that were outside the normal range of 3,400 N. Conclusions: A simulated computer analysis using RULA and biomechanical analysis with calculations of maximum loads in the lumbar segment of students found that school backpacks carried by students were too heavy for their age and well beyond the normal limits and WHO recommendations. The analysis showed that it is necessary to reduce the weight of the bag by about 30%.

Influence of school backpacks on spinal column load in primary school students

Background: The problem of heavy school bags is a global problem recognized in many countries in Europe and the world, including in Bosnia and Herzegovina. In addition to poor posture habits, "sedentary lifestyles" and insufficient physical activity, school bags is one of the main causes of low back pain and deformity in pupils. The recommendation of the World Health Organization (WHO) is that the weight of the school bag should not exceed 10% of the student's weight. However, in practice these limitations are far from reality with the obvious problems caused by too heavy bags. The aim of the paper is to identify and analyze the backbone load caused by the overweight school backpacks in real school work conditions and eliminate them by creating new solutions that are in line with ergonomic and biomechanical principles, as well as the recommendation given by WHO. Methods: The research included first grade primary school students at the age of seven, including their parents. The research began by interviewing parents with relevant questions, as well as measuring the students’ height and weight and the weight of their school backpacks. The analysis was performed in CATIA v5 software package (Dassault Systèmes, Vélizy-Villacoublay, France) using its advanced biomechanical modules. By knowing the anthropometric and work environment data with ergonomic design and analysis, the biomechanical analysis, rapid upper limb assessment (RULA) and carry analysis were performed. Results: The conducted survey showed that 84% of students walk from home to school nineteen minutes on average and that 77% of them carry their school backpacks independently. Based on the measurements, it has been shown that, on average, the weight of the school backpacks is well above the WHO recommendation. A study conducted on a representative sample of students confirmed the relation between fatigue and spinal pain caused by carrying a heavy school bag. Computer analysis showed excessive loads on the spinal segment of L4/L5 that were outside the normal range of 3,400 N. Conclusions: A simulated computer analysis using RULA and biomechanical analysis with calculations of maximum loads in the lumbar segment of students found that school backpacks carried by students were too heavy for their age and well beyond the normal limits and WHO recommendations. The analysis showed that it is necessary to reduce the weight of the bag by about 30%.

Static and Fatigue Analysis on a Wing Spar Joint for a Light Jet Aircraft Structure Using 2024 T351 Material

The main objective of this paper is to present prototype of wing spar joint using CATIA V5 software to study the behavior of wing spar joint as per actual working condition and to perform structural analysis of the wing spar joint based on condition of cyclic loading (fatigue loading). Determining the loading modes in the spar joint is subjected to static load and fatigue loads which should be taken into account in the evaluation of the strength and fatigue life. Initially, the components were modeled with CATIA V5 and imported to MSC PATRAN; MSC NASTRAN is used as a solver. From the obtained maximum tensile stresses, fatigue analysis was carried out to find fatigue life of the spar joint with different fatigue load spectra.

Finite Element Simulation of Acceleration Pedal On XX Vehicle

<p>This paper presents the failure analysis of acceleration pedal of xx vehicle. The purpose of this research are to know the cause of failure, types of failure, and approach in searching for the best parameters that yield optimal product quality on product design. This research uses the known test method, where the type of failure and results of analysis compared with the result of expected product reliability. The simulation uses CATIA V5 software involving types of load that applied on product, length, size and dimension of product, and types of material. Simulation result data is used for see the influence and effect of each parameter to the product design, also the types of failure that will affect the product reliability</p>

Numerical Analysis of Diesel Engine with Modified Inlet Valve

The Internal combustion engine is one of the widely used mechanical system. The primary aspect of all types of engines is the amount of power produced which, is affected by the complete combustion of a mixture of air and fuel. The objective of this present work is to outline the improved performance of single-cylinder Compression Ignition engine with the aid of geometrical modifications of Inlet manifold. The Study is performed on Kirlosakr CI engine. For modeling of engine assembly, CATIA V5 Software has been used. The Numerical simulations are performed with Ansys 14.5 and solver used as CFX. In this work, two different engine models such as Conventional valve and Modified valve with plate is being considered for CFD analysis. The simulation study of air flow motion with a valve lift of 4 mm, 6 mm and 8 mm is performed for both valve configurations. This numerical analysis aims to maximize the air velocity in the inlet valve with minimum turbulence which in turn improves the engine performance. The study is performed on the single cylinder four-stroke variable compression ratio diesel engines. In the present study, the air flow motion inside the intake manifold of an engine is simulated and investigations are performed by considering the six conditions of the intake valve. The results obtained acts as a basis for further investigation of a variety of valve geometry.

Computational Analysis of Flow over Bluff Bodies using Aero Spikes: Technical Note

This paper presents the computational analysis of the effect of aero spikes on bluff bodies. In the present study, a blunt nose model was designed with and without spike. Two different shaped spikes were chosen for our study. Efforts were taken to obtain the flow pattern and the pressure distribution field over the nose of the blunt body. Flow pattern were observed and recorded for different shaped spike attached in-front of the body. Comparative study was also done to observe which shape of the aero spike provides better zone of pressure field. It is observed that the radius of curvature of the streamline gets reduced by aero spike. Also, there occurs a deflection in the streamline which in turn resulted in creating a narrow zone of positive pressure region. The zone of influence gets reduced by hemispherical shaped spike. The models were designed using Catia V5 software and the analyses were carried out using Ansys software.

3D Prototype of Limited Lean Suspension System

3D printing is also known as Additive manufacturing (AM) process, where 3D objects are created by laying down into successive layer of material. In 1984, Charles Hull developed the technology of 3D printing from digital data and named the technique as Stereo lithography (STL) in 1986. In this project, create the prototype of Limited Lean Suspension System by using Fused Deposition Modeling (FDM) process in which the CAD model is designed in Catia v5 software and converted to STL format. The STL format is uploaded to FDM printer and works according to the G-code generated. This prototype is to study the kinematic parameters, working principle and in future research. By using Leaning application it will improves the vehicle stability, smooth cornering and fuel efficiency

Numerical evaluation of cooling performances of semiconductor using CuO/water nanofluids

Now a days Very-Large-Scale Integrated (VLSI) circuits are facing critical issues to satisfy the cooling demand because of shrinking the semiconductors. In this numerical work, the surface temperature of the chip, heat transfer rate, thermal resistance, power consumption and reliability are studied by using CuO/water nanofluids as coolant and compared the nanofluids results with the results of water. The CuO/water nanofluids at 0.25%, 0.5%, and 0.75% volume concentration are used for this investigation. The modelling, meshing and simulation are carried out by CATIAv5 and ANSYS Fluent v12 CFX software package. It is observed that the heat transfer rates of semiconductor using the coolant CuO/water nanofluid at 0.25%, 0.5%, and 0.75% volume concentrations are 25%, 43%, and 57% respectively higher than that of water. Found that the surface temperature of the semiconductor is lowered by 3%, 6%, and 8%, the thermal resistances decrease up to 6%, 10%, and 13%, and the Nusselt number increases by 25%, 43%, and 56%, when compared to water. It is also studied that the power consumption of the semiconductor reduces by 3%, 6%, and 8% at 0.25%, 0.5%, and 0.75% volume concentration respectively than water as coolant. It is also found that the failure rate of the semiconductor of using CuO/water nanofluids at 0.25%, 0.5%, and 0.75% volume concentration are 69%, 76%, and 84% respectively smaller than the water.

An assessment and analysis of musculoskeletal disorders (MSDs) of Odisha farmers in India

The prevalence of musculoskeletal disorders (MSDs) of farmers not only reduces their performance, efficiency but may also lead to more serious health consequences. The present study contributes in three phases in the assessment and analysis of MSDs of farmers in Odisha (India). In the first phase, a standardized nordic questionnaire was prepared to collect the information and data regarding name, gender, age, other personal characteristics, socio-demographic characteristics, work setting characteristics, and tools and equipment characteristics as the factors associated with the MSDs with a five point rating scale. The information was collected considering 2 years period i.e. from 2015 to 2017. Socio-demographic characteristics, work setting characteristics of farmers, and tools and equipment characteristics of farmers were illustrated to depict the MSDs level in different body parts like neck, shoulder, upper back, lower back, elbow, wrist/hand, thigh, knees and ankles, respectively. In the second phase, the harvesting postures are virtually built and the RULA analysis was used followed by the CATIA V5 software. The RULA scores obtained by assessment of each posture are discussed for necessary actions to be followed, for farmer’s safety and healthy working-environment. Finally in the third phase, the total interpretive structural modeling (TISM) methodology was used to deal with this complex study followed by MICMAC analysis.

Multifiring endoclip conceptual design using cad approach

The endoclip design that will be done is by designing cartridge components that have several clips. In essence, endoclip is a mechanical device in the world of health, especially for endoscopic activities, which are also used for the process of hemostasis and also non-hemostatic applications. This study describes the relationship between end-time end-endoscopic problems during gastrointestinal standards. Currently, market-available endoclips only focus on single-firing, where the process is carried out one by one. The use of Endoclip at this time is very difficult because of the repetition of the clip loading process to the applicator. Therefore, the purpose of this research is to design cartridges which consist of several clips for endoclip and allow for mechanical movements. The method of selecting the appropriate and important part of the tip which is the most important way to solve the problem and the design and process of the simulation is done using CATIA V5 software. The aim of this study was achieved by increasing the critical part of the catheter by replacing it with a cartridge design that contained several clips that allowed the clipping process to be multi-firing, not one-shot and also by simulating the mechanism.

Finite Element Analysis of Zirconia Ceramic Biomaterials Used in Medical Dental Implants

Abstract: Zirconia is an advanced ceramic material widely used in dental implants because of its good inert characteristics like minimum interaction and good aesthetic properties. The finite element method (FEM) is an effective approach for the analysis of dental implants and dental structures. In the present work, a three-dimensional (3D) model of a molar tooth was generated by CATIA V5 software, and an analysis was carried out by the commercial FEA (Finite Element Analysis) software Ansys 14.5 to evaluate the displacement, strain, stress, fatigue life and factor of safety in the proximal region of the zirconia molar tooth implant under static load conditions of 50, 100, 150, 200, 250 and 300 N. The results show that the displacement, strain and stresses, fatigue life and factor of safety were within the material admissible limits for zirconia. Hence, the study reveals that zirconia can be a candidate biomaterial suitable for dental implants as compared to metal implants.

Ergonomics study on an assembly line used in the automotive industry

Today, for the enterprises, the competition is more and more intense and more competitor try to satisfy their customers. In the field of automotive industry, the demands for the product increase and the company need to satisfy the demand. As the demands increases, the company should produce more product than usual. In the same time the comfort and health of the workers should be consider. Some factors such as workstation design should take into consideration in order to increase the productivity and at the same time protect workers from accidents and health problem. Therefore, the workstations need to be redesign by applying the ergonomics principles. This paper presents the combined application of Artificial Neural Networks and the Rapid Upper Limb Assessment (RULA) Analysis in the process of redesign ergonomic workstations. Artificial Neural Networks excel in gathering difficult non-linear relationships between the inputs and outputs of a system. We used, in this work, a feed forward neural network in order to ranking a workstation. The neural network is simulated with MATLAB. The experiment presented in this paper was realized at University of Piteşti, Faculty of Mechanics and Technology, Department of Manufacturing and Industrial Management, using CATIA V5 software.

The modelling and strength analysis of the endoprosthesis of the knee joint

The knee joint is the largest of all in the human body. It connects the femur, tibia and patella. It is a double-angled joint reinforced with ligaments and surrounded by a joint capsule. Because of the bandy leg or knock-knee, cartilage wear due to age or defective joint load, alloplastic surgery is required. This is a procedure planned individually for each patient depending on their age, gender or weight. To assess the scale of wear, knee cartilage was scanned using computed tomography. CT scans were processed into a 3D model using Materialize Mimics. Based on obtained bone models, a model of the endoprosthesis was designed using the Catia V5 software. Strength analysis was carried out based on the selection of appropriate materials and theoretically accepted loads.

Design & analysis of pinion&crown for the differential

Abstract In present scenario, every organization and constructions depends on automobiles for transporting goods. In that tippers are placed important role. During heavy load transmission deferential will play major role to transfer motion from engine to rear wheel. But due to heavy loads two differentials with two rear axle are used in ashok Leyland tippers, it fails at critical conditions. So this paper is concentrating with better improvements to reduce the failures on differential. Here design and analysis of differential crown wheel and pinion of Ashok Leyland tipper made by G-45 steel material. The objective of this paper is geometric model of pinion and crown wheel of rear axle differential is generated by CATIA V5 software. The geometrical model is cleaned and meshed in to finite elements by using HyperMesh12 software. Finite Element model was solved using ABAQUS software it is proposed to find the effect of deformation, strength variations of the differential. By identifying the true design and the extended service life, long term stability can be assured.

Mechanical and Finite Element Analysis of Gripper Finger

The finger structure was designed for a two-finger parallel gripper. By design calculations it was clear that the gripper was safe but the finger designed was a critical one. Hence 3D solid model for gripper finger was built with 3D modeling software CATIA V5 and finite element analysis was done with the ANSYS from that the state of gripper fingers with different structure under certain loading conditions was calculated to further improve the gripper finger structure. By the reference to the results, related mechanical properties were compared to obtain stress distribution of gripper with different gripper finger structure. From results it is clear that through structure improvement the stress can be reduced significantly under identical loading and boundary conditions and also deformation get reduced.

Multiple Angle of Bisector Rinn Holder for Oral X-Ray

Multiple angle of bisector rinn holder is a film holder instrument that is yet to be developed that is able to use paralleling technique and bisecting angle technique in oral x-ray radiography. It is a device aimed to be able to use multiple techniques in oral radiography while getting a good image quality that helps the dentist in doing their work. This is a project that involves the development of the instruments and the effectiveness of the instruments compared to the existing one. The result of the radiographic image was compared and certain constraint was used to compare the instruments with the existing instruments. This project used CATIA V5 software for the design stage. In this project, the instrument was tested to validate the effectiveness where the testing was conducted at the faculty of dentistry. The outcome was the effectiveness of the instrument as compared to the existing instrument with other certain constraints.

Finite element analysis of aircraft wing using carbon fiber reinforced polymer and glass fiber reinforced polymer.

A wing is a structural component of aircraft which is used to produce lift during the flight. Wing is initially inclined at certain angle of attack. When the flow passes over it, due to the pressure difference at top and bottom surface of the wing lift force is generated. The aim of this present study is to analyze the wing of an aircraft using Carbon fiber reinforced polymer (CRFP), Glass fiber reinforced polymer (GRFP) and compare with Al alloy to find suitable material for wing. The wing is designed in solid modeling software CATIA V5 R20 and analysis is done using finite element method by using ANSYS. Static structural analysis of the wing is done to find deformation, stress, and strain induced in the wing structure. Modal analysis is done to find the natural frequency of the wing to reduce the noise and avoid vibration. Finally fatigue life analysis is carried out to find out the damage, life and factor of safety of the wing due to applied pressure loads. In this study, the trainer aircraft wing structure with skin, 2 spars and 15 ribs is considered for the analysis. The ribs are running from leading edge to trailing edge and 2 spars running longitudinally along the length of wing. Front spar is made “I” section and rear spar having “C” section according to design.

Design and analysis of exhaust manifold of the spark ignition engine for emission reduction

ABSTRACTThe design geometry of exhaust manifold plays a vital role in smooth combustion and emission reduction of the spark ignition engine. In this work, by analysing and comparing the exhaust gas back pressures and its velocities of different types of manifold models chosen at different operating load conditions of the engine, the best exhaust manifold of model 5 has been found and recommended to use in the multi-cylinder engine to control the engine emission and protect the environment. The analysis is done with a virtual model of manifold. Modelling and analysis of exhaust manifold are carried out by CATIA v5 and ANSYS software.

Finite Element Analysis of Ti-6Al-4V ELI and Alumina Bio-inert Material Used in Molar Tooth Dental Implant Applications

TI-6AL-4V ELI and alumina are important bio-inert materials used in the field of dental implants due to their unique characteristics of minimal interaction with surrounding tissue. This paper presents the typical finite element method (FEM) as an effective approach for the analysis of dental implants and dental structures. In the present work, three-dimensional modeling of a molar tooth was generated by CATIA V5 software. Analyses were carried out by commercial FEA software Ansys 14.5 to evaluate the displacement, strain, stress, fatigue life, and factor of safety in the proximal region of Ti-6Al-4V ELI and alumina molar teeth implants under a static load condition of 50, 100, 150, 200, 250, and 300 N. The results show that the displacement, strain and stresses, fatigue life, and factor of safety were within the admissible material limits for alumina. Hence, the study reveals that alumina is an alternate biomaterial suitable for dental implants.