Analytical study of Vehicle Propulsion Forces.

Question: This tool test carries two models (i.e. Plastic model, Sheet metal model). For both the models, Mid surface should be taken and meshed as per below quality criteria. Thickness should be assigned to both the models.  (Refer “Model Requirements” in “Grading Policy”  to know…

Question: For the given component, check for the geometrical errors and mesh with the given element Quality criteria. After meshing the component the thickness has to be assigned. Write a detailed report on your meshing process and also mention which method you used to extract the mid-surface along with the reason.  …

Question: In this challenge, There will be two models.1) Practice all the Morphing techniques that were shown in the video for Model-1.  2) Perform morphing for the Model-2 and Increase the Height of the Dog houses and Ribs. (Refer Red annotations in the below image to understand what are Dog houses and Ribs) Write…

Question: For the given Rear door FE model, Create and Apply different PIDs for different components. Write a detailed report on why you choose a certain type of element for connecting certain parts of the door.    Solution:   Fig1.1: Model of rear side door for which we need to make connections.  …

Question: For the given Rear view mirror component, check for the geometrical errors and mesh the Surfaces with the given 2D element Quality criterias given below.    S.No  Quality Criteria  Value  1 Target/Average length   1 2 Minimum Length  0.5 3 Maximum Length  2  …

Question:   For the given Intake Manifold component, check for the geometrical errors and mesh the Surfaces with the given 2D element Quality criterias given below.  S.No  Quality Criteria  Value  1 Target/Average length   3 2 Minimum Length  1 3 Maximum Length  5 Use tetra…

Question: For the given Plastic Bottle Cap model, check for the geometrical errors and take the mid surface by suitable mid surfacing techniques. PID and Thickness assignment has to be done for all the mid surfaces. Mesh the same with the given element Quality criteria. (Refer to the table below for the Quality criteria)…

Question: For the given Hood model, Take the mid surface for all the components after checking the geometrical errors and mesh the mid surface with the given element Quality criteria. (Refer the table Below for the Quality criteria)    S.No  Quality Criteria  Value  1 Target/Average length   5 2 Minimum Length  2 3 Maximum…

Question: Create the Door Trim Lower Plastic component through the given Class-A surface. To begin with, the tooling axis for the given Class-A Surface should be created meeting the requirements of the draft angle and at the end perform the Draft analysis on the model.  Create the Heat Stakes and the locators considering…

Question: Create the Dog House for the Door Trim considering the design rules mentioned in the video. Consider the thickness of the part to be 2.5 mm. "C" is where the doghouse contacts the backside of the surface.  Doghouse wall thickness at the intersection of the part wall ( C ) should be 40% or…

Question: Create the rib for the Drill Handle considering the design rules mentioned in the video.  Create the Screw boss for the Drill Handle considering the design rules mentioned in the video.  General Guidelines for Bosses:   Draft  - 0.5 degrees on the walls of boss   Thickness - …

Question: Create the Bumper Plastic component through the given Class-A surface. To begin with, the tooling axis for the given Class-A Surface should be created meeting the requirements of the draft angle and at the end perform the Draft analysis on the model.  Take the Thickness of the component to be 3 mm.…

Question:   Create the Core and cavity blocks for the switch bezel.  Solution: What is Core and Cavity? The core & cavity are the shaped sections in either half of the mould tool which give the plastic product its final shape. The hot molten material is injected into the core & cavity and then sets…

Question: Create the Coin Holder Plastic component through the given Class-A surface. To begin with, the tooling axis for the given Class-A Surface should be created meeting the requirements of the draft angle and at the end perform the Draft analysis on the model.  Take the Thickness of the component to be 2.5…

Question: Create the Switch Bezel Plastic component through the given Class-A surface. To begin with, the tooling axis for the given Class-A Surface should be created meeting the requirements of the draft angle and at the end perform the Draft analysis on the model.  Take the Thickness of the component to be 2.5…

Question: Create the Base Bracket Plastic component through the given Class-A surface. To begin with, the tooling axis for the given Class-A Surface should be created meeting the requirements of the draft angle and at the end perform the Draft analysis on the model.    Solution: What is draft in plastic design?…

BACK DOOR DESIGN:   Objective:   To develop the car back door by using given surface method by automotive sheet metal design.    Intoduction:   A backdoor is located at the rear end of the car which gives access for the boot space to store luggage, spare wheel, etc. These doors can be operated…

Aim:   To design and develop the roof of a car with it's components by following the master section and design parameters.    Objectives:   • To develop the essential flanges and reinforcements using roof styling as input.  • To do a curvature study on the roof and perform calculations…

Aim:   Study of section modulus and strength of components.    Objective:   To calculate the section modulus of the previously designed hood for analyzing it's strength and optimizing the design to see the difference in the bending strength of the hood. Higher the section modulus of the structure, the…

Aim:   Design the wheel arch of the fender.    Objective:   To examine the given fender wheel arch design and to verify if the wheel arch of the fender meets the European standards.    Introduction:   Fender wheel arch: Fender wheel arch is the semi-circular part positioned above the…

Aim: To design the fendor of a car using UG NX.     Objectives: 01. To study the fendor design.     Introduction: Fender is a part of a vehicle which frames a wheel and prevents from the sticky and hard substance such as mud, sand, rock, etc. Sticky materials such as mud may adhere to the smooth outer…

    Aim:   To design the hood of a car using UG NX.      Objectives:   1. To study hood design.    2. To study the mastic data for hood.    3. To study process of hemming and edge relief.      Introdution:   The hood or bonnet is the hinged cover…

Introduction:   What is underbody coating for automobiles?    Underbody coating is usually a dense cladding (often based on rubber) applied uniformly to the undercarriage of the automobile. It is normally sprayed or painted on when the car is just out of the dealership and is clean. But even if you are getting…

  Aim:   To study the concept of Benchmarking in Predesign and Development phase of automotive designs for manufacturing.    Objectives:   01. To study and implement the concept of Benchmarking in real world application.    02. Prepare a report explaining what is Bench-Marking  …

Aim: To create the shell (2-D) meshing for the car side door panel by eliminating geometrical errors and considering the given quality criteria using Hypermesh .   Introduction: Side door panel: Side door panel is the plastic part, materials used for the door panelare acrylonitrile-butadiene-styrene (ABS), polycarbonate…

Question: Mesh the given geometry. Provided below are the quality parameters that you have to follow. Target Element size - 5 Units Sr. No. Quality Criteria  Value  1 Aspect Ratio  5 2 Skewness 45 3 Warping 15 4 Taper      0.5 5 Min. Length 2 Units 6 Max. Length 8 Units 7 Min angle Quad 45 8 Max angle Quad 135 9 Min angle…

Question:   Follow the below-mentioned quality criteria, mesh the component given below and assign thickness: Target Element Length = 5 Units Sr.No. Quality Criteria  Value  1 Aspect Ratio  5 2 Skewness 45 3 Warping 15 4 Taper      0.5 5 Min. Length 2 Units 6 Max. Length 8 Units…

Question:   01. Create a Tetramesh for Housing component with the following quality criteria. TetraMesh Generation Method: 2D to 3D Conversion Elements sizes: Min- 2 Units, Target- 5 Units, Max- 7 Units  Tet collapse: 0.15 Fig1.1: Housing.   02. For the given model, Create a 3D Tetramesh with the following…

  Questions: A]. Mesh the Given component with the Size of 5 Units.   B]. Create 1D element of following specifications with given cross-section and DOF. Rod element:- Translational DOF should be Constrained with RBE2 link Cross-Section: BOX- Dimension a= 12 mm              …

Question: Create a detailed MATLAB model of an electric rickshaw (three wheel passenger vehicle) as per details below:  Rear wheels driven by PM brushed type motor. Assume efficiency points of motor controller and motor. Make an excel sheet of all input and assumed data. Results: For any three standard driving cycles…

Questions: 1. In which situations feedforward control of DC motor fails? Prepare a MATLAB script for feedforward control and test it.    2. Assume a plant and a controller to prepare the same structure in Simulink as shown in the below figure. Also, use the PID Controller block in Simulink and verify system response…

Questions: 1. A] Explain the following terms and note down their mathematical formulae. Rise time Settling time Peak overshoot Steady state error B] Tune a compensator for DC Motor Using Bode Diagram Graphical Tuning. The transfer function is given as-  `G=frac(1.5)(s^2+14s+40.20)` Meet the following specifications…

Questions:   1. a.) List all the MATLAB commands related to transfer function, pole-zero-gain and step response.      b.) Apply  all the commands for the following transfer functions in MATLAB-  For the motor load transfer function is- `G=frac(Km)(Ts+1)` where, Km=1.25 T=0.1 `G(s)=frac((1+0.02s)(1+0.025s))(s^3(1+0.005s)(1+0.001s))`…

Aim: To study transfer function.   Objectives: 01. To study autonomous driving systems in hybrid electric cars. 02. To study application of transfer function and state space in matlab. 03. To learn derivation of transfer function for electric circuits.   Introduction: What is Transfer Function? A transfer function…

Aim: To study battery pack and it's temperature using simscape model.   Objectives: 01. To summarize thermal management techniques for electric car battery pack. 02. To Create a simple simscape model with a battery and show the temparature dependance in the performance. 03. To study the resultants graph for different…

Aim: To study thermal modeling of a battery pack.   Objectives: 01. To model of 10 cell series lithium ion battery. 02. To simulate the thermal effects and compare life cycle performance at various temperatures, charge & discharge rates using MATLAB.   Introduction: When temperatures increase this affects…

Aim: To study thermal modeling of a battery pack.   Objectives: 01. To model of 10 cell series lithium ion battery. 02. To simulate the thermal effects and compare life cycle performance at various temperatures, charge & discharge rates using MATLAB.   Introduction: When temperatures increase this affects…

Aim: Study of coulomb counting for SOC estimation and testing harness for BMS.   Objectives: 01. To study test cases from harness dashboard and write a detailed report on the results. 02. To study, what is coulomb counting? And how BMS implements coulomb counting for SOC estimation ?    Introduction: What…

Aim: Study of coulomb counting for SOC estimation and testing harness for BMS.   Objectives: 01. To study test cases from harness dashboard and write a detailed report on the results. 02. To study, what is coulomb counting? And how BMS implements coulomb counting for SOC estimation ?    Introduction: What…

Aim: To study cell balancing techniques of a battery pack.   Objectives: 01. To study, how weakest cell limits the usable capacity of the battery pack. 02. To study, the cell balancing techiniques.   Introduction: First we will look into the precise definitions of EV battery’s “cell”, “module”…

Aim: Study of cell arrangements in battery module of a battery pack in matlab.   Objectives: 01. To build a battery pack with 3S4P configuration with generic battery block. 02. To configure the batteries as per a Lithium ion battery datasheet. 03. To study the parameters of configured battery pack. 04. To simulate…

Aim: To study the 6 kW 45 Vdc Fuel Cell Stack in matlab.   Objectives: 01. To study the working priniciple of the model in detail. 02. To study simulation of the model and the results. 03. To study the voltage and current characteristics in resultant graph.   Introduction: What is Fuel Cell? A fuel cell is an…

Aim: To study and configure the generic battery model of lithium ion battery in MATLAB. Objectives: 01. To configure the generic battery model of li-ion battery in MATLAB. 02. To simulate generic battery model using UDDS data. Introduction: What is Lithium ion battery? A lithium-ion battery or Li-ion battery is…

Aim: Study of various characteristics of lead acid battery in matlab.   Objective: To run a MATLAB script for the mathematical model of lead acid battery and study the results.   Introduction: What is Depth of discharge (DoD)? Depth of discharge (DoD) is the fraction or percentage of the capacity which has…

Aim: To study specifications of lithium ion cells.   Objectives: 01. To study the difference between nominal voltage and maximum voltage? 02. To study dimensions and weight of a cell. 03. To study various mechanical testing and standards. 04. To study the discard procedure suggested generally for used Li ion+ batteries?…

Aim: To study the various types of Lithium ion batteries and their characteristics. Objectives: 1. To study materials & chemical reactions occurring at the anode and cathode of LCO, LMO, NCA, NMC, LFP and LTO type of lithium ion cells. 2. Study the differences between each type of Li-ion batteries based on their characteristics.…

Aim: To study the various types of Lithium ion batteries and their characteristics. Objectives: 1. To study materials & chemical reactions occurring at the anode and cathode of LCO, LMO, NCA, NMC, LFP and LTO type of lithium ion cells. 2. Study the differences between each type of Li-ion batteries based on their characteristics.…

Aim: Study of powertrian for aircrafts in runways.   Objectives: 01. Search and list out the total weight of various types of aircrafts.  02. Is there any difference between ground speed and air speed? 03. Why is it not recommended to use aircraft engine power to move it on the ground at Airport?  04. How…

Aim: Study of powertrian for aircrafts in runways.   Objectives: 01. Search and list out the total weight of various types of aircrafts.  02. Is there any difference between ground speed and air speed? 03. Why is it not recommended to use aircraft engine power to move it on the ground at Airport?  04. How…

Aim: To study braking system of an electric vehicle.   Objectives: 01. To calculate the energy required for braking, for given driving cycle. 02. To study why electric motor can’t develop braking torque at high speed similar to starting? How electric and mechanical brakes are coordinated?  03. To run…

Aim: To study Power converters and Power electronics of electric vehicles.   Objectives: 01. To study power electronics circuits and losses occuring in power electronics circuits at practice. 02. A. To develop a Simulink model for generating pulses for a simple power converter circuit. (Hint: Blocks : sine wave,carrier…

Aim: Study of the equivalent circuit network of induction motor.   Objectives: To study and discuss about the equivalent circuit network of induction motor MATLAB model. Solve: 3 phase, 50 Hz induction motor, represented by equivalent circuit constants X1 = X2 = 0.1 ohm and R1 = R2 = 0.2 ohm is operated at half of…

Aim:  Study of speed torque characteristics and frequency control method of an induction motor by using matlab.   Objectives: 1. How induction motor operation is similar to the clutch?  2. Calculate the starting time of a drive with the following parameters:              …

Aim:  Study of DC motor and it's applications in 'The Four-Quadrant Chopper DC Drive’ and 'The Two-Quadrant chopper'.   Objectives: 1.    A. To study a MATLAB demo model named ‘Speed control of a DC motor using BJT H-bridge’.    B. Observe and study the armature current shoot-up…

Aim:  Study of DC motor and it's applications in 'The Four-Quadrant Chopper DC Drive’ and 'The Two-Quadrant chopper'.   Objectives: 1.    A. To study a MATLAB demo model named ‘Speed control of a DC motor using BJT H-bridge’.    B. Observe and study the armature current shoot-up…

Analytical study of DC motor and it's equation of speed for electric vehicle using simulink.

Aim: To study the characteristics of the traction motor in the vehicle. Objectives: To study the power converter circuits used in the elctric vehicles and hybrid electric vehicles. To study the vehicle's speed-torque characteristics for the given equation. To develope the mathematical model of the DC motor for the given…

Aim: Analytical study of the DC machine torque speed characteristics using matlab.   Objectives: Implement DC machine torque speed characteristics equations in MATLAB script file. Distinguish between power cables and signal cables and also prepare a table where these cables are used in the wiring of an electric vehicle.…

Study and comparison of powertrains of the pure electric vehicle and hybrid vehicle.

Aim: Study and comparison of powertrains of the pure electric vehicle and hybrid vehicle by using powertrain blockset.    Objectives: 01. To study the HEV Reference Application with WOT drive cycle. 02. To study and compare the simulated results of hybrid and pure electric powertrains.   Introduction:…

Study of vehicle models 'EV_defaults_in' and 'PRIUS_Jpn_defaults_in' using advisor tool.

Aim:  Study of vehicle models 'EV_defaults_in' and 'PRIUS_Jpn_defaults_in' using advisor tool.         Objectives: 1. To study and analyze the EV_defaults_in vehicle model. 2. Conducting gradeability test with PRIUS_Jpn_defaults_in.       Introduction: An advanced vehicle simulator…

Aim: Analytical study of the real time Drive cycle using Driver Glider Model and modeling of GM EV1 car for Wide Open Throttle calculation.   Formulae: 01. Motor Torque (Tm): `Tm = frac {Fte times r} {G}` Fte = Total Tractive Effort. r = Tire radius in mm. G = Gear ratio.   02. Wheel Torque or Axle Torque…

Aim: To study the vehicle propulsion force acting on a vehicle analytically.   Formulae:   01. Aspect Ratio (AR): `AR = frac {H} {W} times 100` H = Side wall height of the tire in mm. W = Width of the tire in mm.      02. Wheel Diameter (dw): `dw = D + 2 times H` D = Interior rim diameter in inches.…

https://skill-lync.com/projects/file-parsing-of-a-thermodynamic-data-file-by-using-matlab

Aim:  Parsing of a Thermodynamic data file by using Matlab. Formulae: i) `frac{Cp}{R} = a1+a2.T+a3.T^2+a4.T^3+a5.T^4` Cp = Specific Heat in J/KgK. R = Universal gas constant in L⋅Pa⋅K^-1⋅mol^-1. T = Temperature of species. a1,a2,a3,a4,a5,a6,a7 = co-efficents for the high temperature. ii) `frac{H}{RT}…

https://skill-lync.com/projects/study-of-the-optimization-by-using-geometric-algorithm-in-matlab

Aim: To study the optimization by using geometric algorithm in matlab.   Formulae:  `f(x,y) = f1,xf2,xf1,yf2,y` 01. `f1.x = [sin(5.1pix + 0.5)]^6` 02. `f1,y = [sin(5.1piy + 0.5)]^6` 03. `f2.x = exp[-4ln(2)frac{(x-0.0667)^2}{0.64}]` 04. `f2.y = exp[-4ln(2)frac{(y-0.0667)^2}{0.64}]`   Objectives:…

Aim: To study the Curve fitting for the best fit of the given set of data in Matlab. Objectives: The study of curve fitting is done to understand the concept of the curve fitting and learn the programming for curve fitting to choose the best fit for the given set of data in matlab. Introduction: We often took a number…

https://skill-lync.com/projects/study-of-ordinary-differential-equation-in-matlab

Aim: To study the Ordinary Differential Equation for pendulum in matlab. Formulae: Solving second order ODE:   Following is the procedure for solving second order ODE. `frac{d^2theta}{dt^2}+frac{b}{m}frac{d theta}{dt}+frac{g}{L}sintheta=00`                      …

Aim: To study the forward kinematics of the robotic arm. Formulae used: Trignometric relations of Sin and Cos.   Sin (X) = Opposite/Hypotenuse Cos (X) = Adjacent/Hypotenuse   Trigonometry, the branch of mathematics concerned with specific functions of angles and their application to calculations.…

Aim: To study the piston kinematics of Otto cycle in matlab. Formulae:   A. `Vs= π/4×(bore)^2×stroke` where,  Vs = Swept volume. (in cubic centimeters or cc)               bore = Diameter of cylinder. (in cm)              …