ROHAN
ROHAN JOSHI

Automotive Engineer

ANSYS-WORKBENCH, ANSYS-MESHING, CFD, NUMERICAL-ANALYSIS, MATLAB, OPENFOAM, SIMULINK-BASICS, HEV-FUNDAMENTALS, STRUCTURAL-MESHING, ANSA

About

CAD - Catia, Electric Vehicle Design - Matlab, Simulink CAE - ANSA, Ansys workbench,

Projects

1D supersonic nozzle simulation using MaCcormach Technique

Objective -  The objective of the project is to write a code for Quasi 1D supersonic Nozzle flow simulation for both conservative and non-conservative form of governing equation using MaCcormack method. To compare the results obtained by implementing Conservation and non-conservative form of governing equation To…

Sphere pressing on a plate Ansys Workbench

Objective -  To simulate a sphere pressing on a plate and experiencing plastic deformation on the plate.Press the sphere onto plate 4mm downwards and retract it. Capture the plastic deformation on the plate. Material to be used is structural steel for sphere and structural steel Non linear for Plate. Solution…

Structural analysis for Plate with Hole Using Ansys Work Bench

Which Design would be prefered from a manufacturing point of view and from an analysis point of view from the two options? Case 1-Plate with single hole at center  case 2 -Plate with multiple holesin which one is at center and other two are on either side of central hole. Solution -  Case 1 - Plate with a single…

2D Unsteady heat conduction equation for steady and transient state

Objective = To solve the steady state and unsteady state 2D heat conduction problem using transient solver and steady state solver.  Iterative techniques = 1) Jacobi method                                  2) Gauss Seidal Method …

Grid Dependency Test Using three different mesh sizes for Bevel Gear

Objective - Static structural analysis of a Bevel Gear using three different mesh size. Compare the results obtained by using 3 different mesh size for Bevel gears. Three Mesh size are 4mm , 5mm and 6mm. Solution -  Grid Dependency - Grid convergence (Grid Dependency Test) is the term used to describe the improvement…

IP substrate Structural Analysis

Objective – To remove topological errors, creating the Mid surface and meshing with the given quality criteria. Also assigning thickness to IP substrate S.No  Quality Criteria  Value  1 Target/Average length   4 2 Minimum Length  2 3 Maximum Length  6 4 Aspect  3 5 Warpage…

Basics of Morphing

Objective - To look at all the different techniques for morphing and w4in which cases this morphing techniques is used Solution - Morphing is a technique used to change a design of any model without giving any numerical inputs.  For example most of the cars are designed as hatch backs and morphing is used to design…

Verification of Weld joints Using Ansys Work Bench

Objective - Verify the joints for model Given with three different materials.  Case 1 - Use stainless steel for all the plates and weld joints  Case 2 - Use Aluminimu Alloy as weld joint material and stain less steel for rest all items Case 3 - Use Bronze Alloy as weld joint material and stain less steel…

Rolling operation on Copper Sheet using Ansys Work bench

Objective - To simulate rolling operation on Copper sheet. Increase the length of the workpiece by 60mm and decrease its size on both sides by 8mm. Run the simulation for 14 steps and you can give small but random values( similar to the ones mentioned in the video) for the displacement. Ensure that the edge of the workpiece…

Structural analysis For a Spur Gear using Three Different Materials

Objective - Static structural analysis of a spur Gear using three different materials. Compare the results obtained by using 3 different materials for Spur gears Three Materials are Cast Iron , Cast steel and Cast Bronze Solution -  Spur Gear – Spur gears can be defined as toothed wheel or multi bed cams, which…

wire Bending operation performed on three different materials using ANSYS work bench

Objective - To Perform an analysis to simulate the bending of a wire using 3 different types of materials for the wire. use Copper Alloy (Non Linear), Aluminium Alloy (Non Linear) and Magnesium Alloy ( Non Linear) for the wire alone. to find out the Equivalent stress and Equivalent strain on the wire alone. Solution…

Taylor s table fourth order approximation for second order derivative

Objective – To derive 4th order approximation for the second order derivative of function using Central difference Skewed right sided difference Skewed left sided difference write a program in Matlab to evaluate the second order derivative of the analytical function exp(x)*cos(x) and compare it with the 3 numerical…

Structural And Volumetric analysis for BMW M6

Objective- To clear Topological errors and mesh and mesh the BMW model 6. Also create wind tunnel Mesh parameters are as follows Body = 3mm                         Element = tria Lights = 4mm Grills =…

Meshing for Structural analysis of HOOD

Objective – To remove topological errors, creating the Mid surface and Hemming the inner and Outer Panel of hood. Meshing the hood for Structural analysis as per the Quality criteria given below. Target length – 5mm S.N Quality Criteria  Value  1 Aspect Ratio  3 2 Skewness 45 3 Warping 30 4 Taper …

Rail wheel and Track Simulation for Static structural Analysis

Objective - Perform a static structural analysis on a Railwheel and Track setup with two different loads and compare stress strain deformation and Life for the two cases. Loads - 100000 for case 1 and 500000 N for Case 2 Solution - For this simulation we first open the work Bench add static structural and since we are…

Structural analysis for Hand rest and BMW component

Objective – To remove topological errors, creating the Mid surface and meshing with the given quality criteria. Also assigning thickness. S.No  Quality Criteria  Value  1 Target/Average length   4 2 Minimum Length  2 3 Maximum Length  6 4 Aspect  3 5 Warpage 15 6 Skewness 45…

Meshing for structural analysis of Bottle cap

Bottle cap Objective – To remove topological errors, creating the Mid surface and meshing with the given quality criteria. Also assigning thickness. S.No  Quality Criteria  Value  1 Target/Average length   1 2 Minimum Length  .5 3 Maximum Length  3 4 Aspect  3 5 Warpage 15…

3D Meshing for a cast component

Volume mesh for Cast Component Objective – To clear all the topologcical errors and volume mesh the Cast component with the given quality criteria. S.No  Quality Criteria  Value  1 Target/Average length   5 2 Minimum Length  3 3 Maximum Length  7 4 Tetcolapse  0.2 Solution…

Static Structural analysis of sheet metal bending process using ANSYS work Bench

Objective - Perform the sheet metal bending challenge for different materials  Case 1 - Use Aluminium Alloy 1199 for the First case Copper Alloy NL and Magnesium Alloy NL for second and third case. Case 4 = With the material as Aluminium Alloy, change the friction coefficient to 0.19 and run the analysis as mentioned…

volume Mesh of side mirror

Volume mesh for Rear view Mirror Objective – To clear all the topologcical errors and volume mesh the rear view mirror with the given quality criteria. S.No  Quality Criteria  Value  1 Target/Average length   1 2 Minimum Length  0.5 3 Maximum Length  2 4 Tetcolapse  0.2 Solution…

Week 9 Tension and Torsion test challenge

Objective – To perform Tension and torsion Test on the Specimen. For the tension test displace one end of the specimen to 18 mm while keeping other end fixed, and for torsion test displace one end of the specimen to 1200 degrees. Material to be used is steel 1006. Find out the total deformation, equivalent stress and temperature…

Week 7-Long Piston With Cam

Objective-  To perform a transient analysis on a piston and cam mechanism model. You need to run the analysis with Frictionless contact, Frictional with 0.1 and 0.2 as the frictional contact for a total of 3 cases. Find out the Equivalent Stress, Directional Deformation and Equivalent Elastic Strain and compare them…

Week 9 Machining with Planer Challenge

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Week 8 Worm Gear Challenge

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Week 10 Bullet penetrating a Bucket Challenge

Objective -to simulate a bullet penetrating into a bucket. You will need to use 3 different non linear materials for the bucket and analyse their behaviour for the same velocity of bullet. Apply the conditions for bullet as mentioned in the video itself. Attach an animation to show the behaviour in the three cases. …

Week 8 - Universal Joint

Objective -To perform transient structural analysis on a double universal joint with a spring using three different materials: Structural Steel, Stainless Steel and Titanium alloy. The three materials must be used on the joint with the springs alone. Find the equivalent stress and Total deformation for all three cases…

Week 11 Car Crash simulation

Objective = To perform a parametric study using 3 different values of thickness for the car body. Analyse the total deformation and Equivalent stresses acting on the model.  Solution - We open the ansys workbench and add the three materials mentioned in the objective. Materials properties Stainless steel NL Now…

Week 5 Bending of iPhone

Objective -  simulate the bending of iPhone  Case 1 - Simulation as per the given geometry. Case 2 -  Move the bottom fingers from their defined position to the given position X= 22.5mm & Z= 10mm and obtain the results for the simulation.  Also define the S-N curve for the Aluminium Alloy…

Week-3 Challenge: ADVISOR Tool

Objective – To check the objective in ADVISOR tool in matlab For EV_defaults_in file, if cargo mass is 500 kg with all other default conditions, can the vehicle travel for 45 km with FTP drive cycle? Conclude your observations. In the above case, try changing the battery capacity and repeat the simulation. Perform gradeability…

Forces acting on a vehicle

Objective -  1.   What should be the maximum speed of the motor used in an electric scooter capable to run at 90 kmph, if the fixed gear ratio is 7 and tire size is 90/100 R10 53J? How to read a tire? Recalculate the same value if tire code is 90/90 R18 51P? 2.   Prepare a simple excel calculator…

Week-4 Challenge WOT Condition Part-2

Objective -  To understand the difference between mapped and dynamic model using HEV referencr application. To learn which factors effect the fuel efficiency in HEV referencr application. To model Pure electric vehicle for a Wide open throttle cycle with and without grade and wind resistance. Compare the simulated…

EV Drivetrain

                                                         EV Drive train Objective  - To study what are the different types of power convertor circuits used in a Electric…

Week-7 Challenge: DC Motor Control

Objective -  Run MATLAB demo ‘Speed control of a DC motor using BJT H-bridge’. Modify the model such that armature current doesn’t shoot up when motor changes direction from forward to reverse.  Refer to help section of ‘The Four-Quadrant Chopper DC Drive (DC7) block’. Compare…

Braking

                                                             Braking  Objective – For a defined driving cycle, calculate the energy required for braking.…

Speed torque characteristics for Induction motor

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 rated voltage and frequency. Calculate the ratio of starting torque at half voltage & frequency to rated values. Answer – Given  x1 = x2 =0.1 R1 = R2 = 0.2 Frequency…

Project-1: Powertrain for aircraft in runways

                     Power train for toeing aircraft   Objective - To design a Power train for toeing aircraft on the runway. Search and list out the total weight of various types of aircrafts.  Is there any difference between ground speed and air speed? …

Course Certificates

Preprocessor for Structural Analysis using ANSA

Completion Certificate UID : nzBHsexmHh8aaw2h

Introduction to Structural Analysis using ANSYS Workbench

Completion Certificate UID : y6krn874b1zlimv5

Introduction to Hybrid Electric Vehicle using MATLAB and Simulink

Completion Certificate UID : zghbjpvku5ycs6a4

Introduction to CFD using MATLAB and OpenFOAM

Completion Certificate UID : eqngwhz2kadt95mf