* only the first 6 pages of this project is presented here. If you are interested to study the rest of this document please contact me via saeid.ghaffari@studenti.polito.it.
With respect to the importance of the T-joint in a vehicle body strength, this project aims to study the joint torsional and bending stiffness in the two main directions. Furthermore, the influence of the number of spot welds on the stiffness of the joint will be analysed benefiting from Altair Hyperworks (Hypermesh FEA software).
Assessing the Aerodynamic Performance of a Formula SAE Model by means of CFD ...saeid ghaffari
A simplified race car model is used in this project to analyse the aerodynamic performance of a Formula SAE car by means of CFD simulation. First, the simulation workflow in Star-CCM+ will be demonstrated. Then, before applying volumetric controls and prism-layer mesh refinement to obtain more accurate results, tools to judge solution convergence are introduced.
*the first six pages of this project are presented here. If you are interested to study the rest of this document, please contact me via saeid.ghaffari@studenti.polito.it.
Thermal and thermo-structural analysis of a dashboardsaeid ghaffari
The windshield is transparent for most of the solar spectrum. Once the rays of the sun have passed the windshield they will be absorbed by the dark dashboard and heat it up to over 80°C (176°F), which must be compensated by the air conditioning. Now the dashboard itself starts radiating but at longer wavelengths in the thermal infrared and at these wavelengths the windshield is not transparent anymore. The project aims to study the temperature distribution and the structural deformation of a dashboard surface when part of it is subjected to direct sun light.
* only the first six pages of the project are presented here. If you are interested to study the rest of this document, please contact me via saeid.ghaffari@studenti.polito.it.
Assessing the torsional stiffness of a simplified ladder frame chassissaeid ghaffari
In this project we assess the torsional stiffness of a simplified ladder frame chassis in 3 different configurations regarding the connections between the cross members and longitudinal beams as well as the geometry of cross beams; simple cross beams, cross beams with cutted cross section and slotted cross beams are considered here. In order to obtain this goal a simplified model of the frame is built in Altair Hyperworks CAE software.
*only the first six pages of this project is presented here. If you are interested to study the rest of this work, please contact me via saeid.ghaffari@studenti.polito.it.
Double lane change maneuver (rigid vehicle model and non predictive driver mo...saeid ghaffari
*Only the first five pages are presented here. If you are interested to study the rest of this project, feel free to contact me via saeid.ghaffari@studenti.polito.it.
This project is studying a double lane change maneuver according to ISO 3888 standard using a rigid vehicle model and non-predictive driver model. The vehicle speed is 80 km/h and the lane change should be followed without touching the lanes. Furthermore, the width of the lanes are given as a function of the vehicle width. A driver model is adopted which is represented by servomechanism having the yaw angle Ψ as input and the steering angle δ as output which is proportional to the error between the effective Ψ and the angle of the trajectory. The transfer function between the output δ and the input Ψ in the Laplace domain is given by the driver gain, the delay of the driver and the Laplace variable. Hence, the stability of the vehicle can be analysed plotting Root loci for different values of driver gain and driver delay. Side slip angle of the vehicle β, steering angle δ and yaw rate as a function of the time will be derived while the trajectory is plotted in XY plane.
Analysis of the stability and step steer maneuver of a linearized vehicle mod...saeid ghaffari
Analysis of the lateral dynamics of the vehicle (stability and step steer manoeuvre) of a Linearized vehicle model with roll motion is done in this project. considering a high double wishbone suspension for front and a semi-trailing arm suspension for rear, firstly we derive the roll camber coefficient and camber stiffness benefiting from a multibody dynamics simulation (MSC ADAMS) validated with experimental values. On the other hand, cornering stiffness and aligning moment are computed through the tire diagrams using Carsim software. Root loci of the system with the objective of investigating the vehicle stability as a function of the vehicle speed is plotted with varying the speed V. Furthermore, a step steer manoeuvre will be performed in which the time history of the variables and the trajectory with respect to the rigid vehicle model will be compared. In the last part, the effect of suspension stiffness and damping variation on the vehicle stability will be examined.
*Only the first ten pages of the project is presented here; if you are interested to study the rest of this document, please do not hesitate to contact e via saeid.ghaffari@studenti.polito.it.
Stability analysis of a Rigid Vehicle Modelsaeid ghaffari
The lateral stability of a two axle vehicle with open loop control will be studied in this project. A 3 dof model is adopted to evaluate the curvature gain and the root loci as a function of the vehicle speed V. Moreover, the dynamic response of the vehicle considering the step steer manoeuvre will be analysed according to the ISO norm. The side slip angle and the yaw rate are evaluated as a function of time, while the trajectory of the center of gravity G of the vehicle with respect to the inertial reference frame (OXY Z) is plotted during step steer maneuver. Inasmuch as the change of cornering stiffness on tires due to the different condition are small, we cannot see the difference between the trajectories, shedding light on the steering angles, however, we can understand what is happening in various conditions. In this study, both the effect of traction force on the front and rear axle and transversal load transfer on the front and rear axle are investigated.
*only the first 10 pages of the main project are presented here. If you are interested to go through the rest of this document please contact me via saeid.ghaffari@studenti.polito.it.
Assessing the Aerodynamic Performance of a Formula SAE Model by means of CFD ...saeid ghaffari
A simplified race car model is used in this project to analyse the aerodynamic performance of a Formula SAE car by means of CFD simulation. First, the simulation workflow in Star-CCM+ will be demonstrated. Then, before applying volumetric controls and prism-layer mesh refinement to obtain more accurate results, tools to judge solution convergence are introduced.
*the first six pages of this project are presented here. If you are interested to study the rest of this document, please contact me via saeid.ghaffari@studenti.polito.it.
Thermal and thermo-structural analysis of a dashboardsaeid ghaffari
The windshield is transparent for most of the solar spectrum. Once the rays of the sun have passed the windshield they will be absorbed by the dark dashboard and heat it up to over 80°C (176°F), which must be compensated by the air conditioning. Now the dashboard itself starts radiating but at longer wavelengths in the thermal infrared and at these wavelengths the windshield is not transparent anymore. The project aims to study the temperature distribution and the structural deformation of a dashboard surface when part of it is subjected to direct sun light.
* only the first six pages of the project are presented here. If you are interested to study the rest of this document, please contact me via saeid.ghaffari@studenti.polito.it.
Assessing the torsional stiffness of a simplified ladder frame chassissaeid ghaffari
In this project we assess the torsional stiffness of a simplified ladder frame chassis in 3 different configurations regarding the connections between the cross members and longitudinal beams as well as the geometry of cross beams; simple cross beams, cross beams with cutted cross section and slotted cross beams are considered here. In order to obtain this goal a simplified model of the frame is built in Altair Hyperworks CAE software.
*only the first six pages of this project is presented here. If you are interested to study the rest of this work, please contact me via saeid.ghaffari@studenti.polito.it.
Double lane change maneuver (rigid vehicle model and non predictive driver mo...saeid ghaffari
*Only the first five pages are presented here. If you are interested to study the rest of this project, feel free to contact me via saeid.ghaffari@studenti.polito.it.
This project is studying a double lane change maneuver according to ISO 3888 standard using a rigid vehicle model and non-predictive driver model. The vehicle speed is 80 km/h and the lane change should be followed without touching the lanes. Furthermore, the width of the lanes are given as a function of the vehicle width. A driver model is adopted which is represented by servomechanism having the yaw angle Ψ as input and the steering angle δ as output which is proportional to the error between the effective Ψ and the angle of the trajectory. The transfer function between the output δ and the input Ψ in the Laplace domain is given by the driver gain, the delay of the driver and the Laplace variable. Hence, the stability of the vehicle can be analysed plotting Root loci for different values of driver gain and driver delay. Side slip angle of the vehicle β, steering angle δ and yaw rate as a function of the time will be derived while the trajectory is plotted in XY plane.
Analysis of the stability and step steer maneuver of a linearized vehicle mod...saeid ghaffari
Analysis of the lateral dynamics of the vehicle (stability and step steer manoeuvre) of a Linearized vehicle model with roll motion is done in this project. considering a high double wishbone suspension for front and a semi-trailing arm suspension for rear, firstly we derive the roll camber coefficient and camber stiffness benefiting from a multibody dynamics simulation (MSC ADAMS) validated with experimental values. On the other hand, cornering stiffness and aligning moment are computed through the tire diagrams using Carsim software. Root loci of the system with the objective of investigating the vehicle stability as a function of the vehicle speed is plotted with varying the speed V. Furthermore, a step steer manoeuvre will be performed in which the time history of the variables and the trajectory with respect to the rigid vehicle model will be compared. In the last part, the effect of suspension stiffness and damping variation on the vehicle stability will be examined.
*Only the first ten pages of the project is presented here; if you are interested to study the rest of this document, please do not hesitate to contact e via saeid.ghaffari@studenti.polito.it.
Stability analysis of a Rigid Vehicle Modelsaeid ghaffari
The lateral stability of a two axle vehicle with open loop control will be studied in this project. A 3 dof model is adopted to evaluate the curvature gain and the root loci as a function of the vehicle speed V. Moreover, the dynamic response of the vehicle considering the step steer manoeuvre will be analysed according to the ISO norm. The side slip angle and the yaw rate are evaluated as a function of time, while the trajectory of the center of gravity G of the vehicle with respect to the inertial reference frame (OXY Z) is plotted during step steer maneuver. Inasmuch as the change of cornering stiffness on tires due to the different condition are small, we cannot see the difference between the trajectories, shedding light on the steering angles, however, we can understand what is happening in various conditions. In this study, both the effect of traction force on the front and rear axle and transversal load transfer on the front and rear axle are investigated.
*only the first 10 pages of the main project are presented here. If you are interested to go through the rest of this document please contact me via saeid.ghaffari@studenti.polito.it.
In my final year of University, for my research project, I had to find out which strategies would be the most effective when dealing with floods in the UK. The strategies that I chose also had to be feasible and sustainable. Various strategies were discussed and a conclusive strategy was constructed and recommended.
In my final year of University, for my research project, I had to find out which strategies would be the most effective when dealing with floods in the UK. The strategies that I chose also had to be feasible and sustainable. Various strategies were discussed and a conclusive strategy was constructed and recommended.
Numerical Simulation of Bumper Impact Analysis and To Improve Design for Cras...theijes
The major concern in design of bumper is their potentiality to bear impact loads. Therefore, bumper impact test is required to fulfill the safety requirement. In development of bumper systems for the automotive industry, iterative Finite Element (FE) simulations are normally used to find a bumper design that meets the requirements of crash performance. The crash performance of a bumper system is normally verified by results from standardized low speed crash tests based on common crash situations. Explicit finite element method is used to investigate stress and effective plastic strain of bumper at impact. Design modification is applied to the bumper to improve its impact performance.
The essential of car wheel rim is to provide a firm base on which to fit the tyre. Its dimensions, shape should be
suitable to adequately accommodate the particular tyre required for the vehicle. In this project a tyre of car
wheel rim belonging to the disc wheel category is considered. Design is an important industrial activity which
influences the quality of the product. The wheel rim is modeled by using modeling software catiav5r17. By
using this software the time spent in producing the complex 3- D models and the risk involved in the design and
manufacturing process can be easily minimized. So the modeling of the wheel rim is made by using CATIA.
Later this CATIA modal is imported to ANSYS WORKBENCH 14.5 for analysis work. ANSYS
WORKBENCH 14.5 is the latest software used for simulating the different forces, pressure acting on the
component and also calculating and viewing the results. By using ANSYS WORKBENCH 14.5 software
reduces the time compared with the method of mathematical calculations by a human. ANSYS WORKBENCH
14.5 static structural analysis work is carried out by considered three different materials namely aluminum alloy
,magnesium alloy and structural steel and their relative performances have been observed respectively. In
addition to wheel rim is subjected to modal analysis, a part of dynamic analysis is carried out its performance is
observed. In this analysis by observing the results of both static and dynamic analysis obtained magnesium alloy
is suggested as best material.
Static Stress Analysis of Connecting Rod Using Finite Element ApproachIOSR Journals
Every vehicle which equipped with internal combustion engine requires connecting rod. In this paper a static stress analysis of connecting rod made up of SS 304 used in Cummins NTA 885 BC engine is conducted, using finite element method. After measuring the dimension of connecting rod, model is developed in CATIA V5 software and imported to ANSYS WORKBENCH 14.0 software. Static analysis is done by fixing the smaller end and load is applied at bigger end of connecting rod. Stress developed at four different sections is used for analysis. Maximum stress point and section prone to failure is finding out by this analysis. Graph between stress and load is plotted at section prone to failure and result of stress analysis is shown with the help of image.
Design analysis of bumper beam subjected to offset impact loading for automot...IAEME Publication
The bumper beam is fixed to front portion of the automobile structure and it is one of the primary component which undergoes damage and transfers the forces to the rest of the structure.Thus the modern bumper beam systems should play a key part in the safety concept of an automobile, ensuring that minimal accelerations are transferred to the passenger.
Comparative finite element analysis of metallic spur gear and hybrid spur gearIAEME Publication
Gear is the special division of Mechanical Engineering concerned with the transmission of power and motion between the rotating shafts. In this study, a lathe machine tumbler gear mechanism used for threading purpose is taken and applied finite element analysis methodology on each metallic
spur gears and also FEA analysis is done for hybrid spur gear with same applied load and condition to check comparative stress analysis of both metallic spur gears and hybrid spur gears.
Ever been troubled by the blinking sign and didn’t know what to do?
Here’s a handy guide to dashboard symbols so that you’ll never be confused again!
Save them for later and save the trouble!
5 Warning Signs Your BMW's Intelligent Battery Sensor Needs AttentionBertini's German Motors
IBS monitors and manages your BMW’s battery performance. If it malfunctions, you will have to deal with an array of electrical issues in your vehicle. Recognize warning signs like dimming headlights, frequent battery replacements, and electrical malfunctions to address potential IBS issues promptly.
Why Is Your BMW X3 Hood Not Responding To Release CommandsDart Auto
Experiencing difficulty opening your BMW X3's hood? This guide explores potential issues like mechanical obstruction, hood release mechanism failure, electrical problems, and emergency release malfunctions. Troubleshooting tips include basic checks, clearing obstructions, applying pressure, and using the emergency release.
Fleet management these days is next to impossible without connected vehicle solutions. Why? Well, fleet trackers and accompanying connected vehicle management solutions tend to offer quite a few hard-to-ignore benefits to fleet managers and businesses alike. Let’s check them out!
Symptoms like intermittent starting and key recognition errors signal potential problems with your Mercedes’ EIS. Use diagnostic steps like error code checks and spare key tests. Professional diagnosis and solutions like EIS replacement ensure safe driving. Consult a qualified technician for accurate diagnosis and repair.
𝘼𝙣𝙩𝙞𝙦𝙪𝙚 𝙋𝙡𝙖𝙨𝙩𝙞𝙘 𝙏𝙧𝙖𝙙𝙚𝙧𝙨 𝙞𝙨 𝙫𝙚𝙧𝙮 𝙛𝙖𝙢𝙤𝙪𝙨 𝙛𝙤𝙧 𝙢𝙖𝙣𝙪𝙛𝙖𝙘𝙩𝙪𝙧𝙞𝙣𝙜 𝙩𝙝𝙚𝙞𝙧 𝙥𝙧𝙤𝙙𝙪𝙘𝙩𝙨. 𝙒𝙚 𝙝𝙖𝙫𝙚 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙥𝙡𝙖𝙨𝙩𝙞𝙘 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙪𝙨𝙚𝙙 𝙞𝙣 𝙖𝙪𝙩𝙤𝙢𝙤𝙩𝙞𝙫𝙚 𝙖𝙣𝙙 𝙖𝙪𝙩𝙤 𝙥𝙖𝙧𝙩𝙨 𝙖𝙣𝙙 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙛𝙖𝙢𝙤𝙪𝙨 𝙘𝙤𝙢𝙥𝙖𝙣𝙞𝙚𝙨 𝙗𝙪𝙮 𝙩𝙝𝙚 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙛𝙧𝙤𝙢 𝙪𝙨.
Over the 10 years, we have gained a strong foothold in the market due to our range's high quality, competitive prices, and time-lined delivery schedules.
"Trans Failsafe Prog" on your BMW X5 indicates potential transmission issues requiring immediate action. This safety feature activates in response to abnormalities like low fluid levels, leaks, faulty sensors, electrical or mechanical failures, and overheating.
Core technology of Hyundai Motor Group's EV platform 'E-GMP'Hyundai Motor Group
What’s the force behind Hyundai Motor Group's EV performance and quality?
Maximized driving performance and quick charging time through high-density battery pack and fast charging technology and applicable to various vehicle types!
Discover more about Hyundai Motor Group’s EV platform ‘E-GMP’!
What Exactly Is The Common Rail Direct Injection System & How Does It WorkMotor Cars International
Learn about Common Rail Direct Injection (CRDi) - the revolutionary technology that has made diesel engines more efficient. Explore its workings, advantages like enhanced fuel efficiency and increased power output, along with drawbacks such as complexity and higher initial cost. Compare CRDi with traditional diesel engines and discover why it's the preferred choice for modern engines.
Comprehensive program for Agricultural Finance, the Automotive Sector, and Empowerment . We will define the full scope and provide a detailed two-week plan for identifying strategic partners in each area within Limpopo, including target areas.:
1. Agricultural : Supporting Primary and Secondary Agriculture
• Scope: Provide support solutions to enhance agricultural productivity and sustainability.
• Target Areas: Polokwane, Tzaneen, Thohoyandou, Makhado, and Giyani.
2. Automotive Sector: Partnerships with Mechanics and Panel Beater Shops
• Scope: Develop collaborations with automotive service providers to improve service quality and business operations.
• Target Areas: Polokwane, Lephalale, Mokopane, Phalaborwa, and Bela-Bela.
3. Empowerment : Focusing on Women Empowerment
• Scope: Provide business support support and training to women-owned businesses, promoting economic inclusion.
• Target Areas: Polokwane, Thohoyandou, Musina, Burgersfort, and Louis Trichardt.
We will also prioritize Industrial Economic Zone areas and their priorities.
Sign up on https://profilesmes.online/welcome/
To be eligible:
1. You must have a registered business and operate in Limpopo
2. Generate revenue
3. Sectors : Agriculture ( primary and secondary) and Automative
Women and Youth are encouraged to apply even if you don't fall in those sectors.
Things to remember while upgrading the brakes of your carjennifermiller8137
Upgrading the brakes of your car? Keep these things in mind before doing so. Additionally, start using an OBD 2 GPS tracker so that you never miss a vehicle maintenance appointment. On top of this, a car GPS tracker will also let you master good driving habits that will let you increase the operational life of your car’s brakes.
In this presentation, we have discussed a very important feature of BMW X5 cars… the Comfort Access. Things that can significantly limit its functionality. And things that you can try to restore the functionality of such a convenient feature of your vehicle.
Why Isn't Your BMW X5's Comfort Access Functioning Properly Find Out Here
A Study on how Spot Welds Affect the Stiffness of a Car Body T-joint
1. Department of
Mechanical and
Aerospace Engineering
Saeid Ghaffari
Professor: Alessandro Scattina
Automotive Engineering - A.Y. 2017-2018
A Study on how Spot Welds
Affect the Stiffness of a Car Body
T-joint
2. I N T R O D U C T I O N
With respect to the importance of the T-joint in a vehicle body strength, we study the following aspects
of a typical T-joint of a vehicle:
o The evaluation of the joint torsional stiffness
o The evaluation of bending stiffness in the two main directions
o The evaluation of the influence of the number of spot welds on the stiffness of the joint
A STUDY ON HOW SPOT WELDS AFFECT THE STIFFNESS OF A CAR BODY T-JOINT 2Automotive Engineering - A.Y. 2017-2018
Department of Mechanical
and Aerospace Engineering
3. 3
Department of Mechanical
and Aerospace Engineering
I N T R O D U C T I O N
o Geometry
Half of the full model is given by a .igs file format. The dimensions of the
given model are shown in the figure.
The full model will be modelled using “reflect” submenu.
40mm
54 mm
192 mm
338.6mm
92mm
Thickness of the metal sheet: 1mm
A STUDY ON HOW SPOT WELDS AFFECT THE STIFFNESS OF A CAR BODY T-JOINTAutomotive Engineering - A.Y. 2017-2018
Department of Mechanical
and Aerospace Engineering
4. 4
Department of Mechanical
and Aerospace Engineering
I N T R O D U C T I O N
o Material
The material properties of the T-joint is given in the following table.
S T E E L
Module of Elasticity (MPa) Poisson Ratio Density (Gkg/l)
210000 0.3 7.8e-9
A STUDY ON HOW SPOT WELDS AFFECT THE STIFFNESS OF A CAR BODY T-JOINTAutomotive Engineering - A.Y. 2017-2018
Department of Mechanical
and Aerospace Engineering
5. 5
Department of Mechanical
and Aerospace Engineering
Processing
Results
Solution/
Analysis
Creating
Loads and
Boundary
Conditions
Assigning
Material
and
Physical
Property
Meshing
P R O C E D U R E
The workflow for Linear Static Analysis in every FEA software is presented in the chart.
A STUDY ON HOW SPOT WELDS AFFECT THE STIFFNESS OF A CAR BODY T-JOINTAutomotive Engineering - A.Y. 2017-2018
Department of Mechanical
and Aerospace Engineering
6. 6
Department of Mechanical
and Aerospace Engineering
P R O C E D U R E
o Meshing
After importing the model, we mesh the half model using mixed (trias+quads) shell elements using
2D > “Automesh” menu. The size of the elements is selected as 5 mm.
A STUDY ON HOW SPOT WELDS AFFECT THE STIFFNESS OF A CAR BODY T-JOINTAutomotive Engineering - A.Y. 2017-2018
Department of Mechanical
and Aerospace Engineering