Week - 3 Drop test Challenge

Aim :  To perform an explicit dynamics simulation on a bullet penetrating into a bucket.   Objectives : Use 3 different non linear materials for the bucket and analyse their behaviour for the same velocity of bullet.   Engineering data and Material selection : Open explicit dynamics model. Go to…

Aim :  To perform an explicit dynamics simulation on Car crash model.   Objectives : 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.    Procedure :   Engineering data and Material…

Aim :  To perform an explicit dynamics simulation on Machining with planer model.   Objectives : To find out the Equivalent Stress, Total Deformation and also insert a User defined result to calculate the temperature of the body. You need to perform this for 2 cases. One will be with a cutting velocity of 20000mm/s and…

Aim : To perform explicit dynamic analysis on the tension and torsion test model.   Objectives : Tension Test : For the tension test, displace one end of the specimen to 18mm while keeping the other fixed. You will need to find out the total deformation, equivalent stress and temperature of the specimen. Torsion Test : For…

Aim : To perform a transient structural analysis on a worm gear assembly.   Objectives : Get results for Equivalent stress, Equivalent elastic strain and the total deformation in the model.   Procedure : First open the Ansys workbench. Go to toolbox select the analysis system and double click on the transient…

Aim : To perform a transient structural analysis on a double universal joint with a spring using three different materials.   Objective : To perform a transient structural analysis on a double universal joint with a spring using three different materials: Structural Steel, Stainless Steel and Titanium alloy. The three…

Aim : To perform a transient analysis on a piston and cam mechanism model.   Objectives : 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…

Aim : To simulate the bending of iPhone.   Objectives : Case 1: Simulate the model as it is. 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. Obtain the directional deformation for the model. Factor of…

Aim : To perform the analysis to simulate a sphere pressing on a plate.   Objective : To perform the analysis to simulate a sphere pressing on a plate. Use Structural steel for both sphere and plate but the material of the plate must be Non Linear. Press the sphere onto plate 4 mm downwards…

Aim : To perform an analysis to simulate the bending of a wire in ANSYS.   Objective : To perform an analysis to simulate the bending of a wire in ANSYS. You will have to use Copper Alloy (Non Linear), Aluminium Alloy (Non Linear) and Magnesium Alloy ( Non Linear) for the wire alone. You need to find out the Equivalent…

Aim :  To perform static structural analysis on rolling operation.   Objectives : Equivalent stress for the whole setup. Equivalent Plastic strain for the workpiece. Directional Deformation in the Z axis for the workpiece. Prove that the workpiece has displaced by 90mm.   Procedure :   Engineering data…

Aim : To perform static structural analysis on Weld Joints.   Objectives :  Simulate three different types of welding using three different weld materials. For each case, find out the Directional Deformation and equivalent strain experienced by the setup. Identify the weld joint that experiences the highest equivalent…

Aim :  To perform static structural analysis on Sheet metal bending operation.   Objectives : Case 1 : Aluminium Alloy 1199, Copper Alloy NL and Magnesium Alloy NL. Find out the Equivalent stress, Equivalent elastic strain and Total Deformation in Y direction and compare the results for the three materials.…

Aim : To perform a static structural analysis on the Railwheel and Track setup.   Objectives : Case 1 : Multiply the bearing load by 5 times and compare the results with the load of 100000 N. Compare the Total Deformation, Equivalent stress and the life under both the loads. Case 2 : Implement a User defined…

Aim : To perform static structural analysis on Bevel gear.   Objectives : Perform a grid dependency test for the Bevel gear simulation for mesh sizes of 6, 5 and 4 mm. Solve for Von-Mises stress, Equivalent elastic strain and Total Deformation using the previously mentioned mesh sizes.   Grid dependency…

Aim : To perform static structural analysis on spur gear to find out equivalent stress, total deformation and stress intensity.   Objectives : Objective 1 : Case 1: Using Cast Iron(ductile) as a material, carry out a static structural analysis to find out Equivalent stress, Total deformation and Stress intensity.…

Aim :  To perform static structural analysis on plate with hole using Ansys workbench to analyze stress concentration.   Objectives : Determine the maximum deformation and stress developed in the model. Compare the deformation and maximum stress developed on a structural steel model for the 2 cases. From…

Aim : To simulate combustion of natural gas.   Objective : Perform a combustion simulation on the combustor model and plot the variation of the mass fraction of the different species in the simulation using line probes at different locations of the combustor. Add the water content in the fuel from 5% to 30% by…

Aim :  To perform a parametric study on the gate valve simulation by setting the opening from 10 % to 80%.   Objective : Obtain the mass flow rates at the outlet for each design point. Calculate the flow coefficient and flow factor for each opening and plot the graph.   Theory :   Gate Valve : A gate…

Aim : To perform analysis on cyclone separator and calculate the separation efficiency and pressure drop.     Objective : To write a few words about any four empirical models used to calculate the cyclone separator efficiency.  To perform an analysis on a given cyclone separator model by varying…

Aim : To perform a steady-state conjugate heat transfer analysis on a model of a graphics card.   Objectives: Run the simulation by varying the velocity from 1m/sec to 5m/sec for at least 3 velocities and discuss the results. Find out the maximum temperature and heat transfer coefficient attained by the processor.…

Aim : To create the simulation of bird strike on the Aero Engine from the given FE model.   Requirements for this project :  The blades should rotate at a constant velocity but the casing should remain stationary. The cylindrical bird model should travel along its own axis and hit the blades. Use elastic…

Aim : To simulate Rayleigh Taylor Instability.   Theory : Rayleigh Taylor instability is a phenomenon that occurs at the interface of fluids of different densities wherein the lighter fluid pushes the heavier fluid due to the density difference. it is a dynamic process wherein the system tries to reduce its combined…

Aim : To carry out a Conjugate heat transfer analysis on an exhaust manifold.   Theory :   Conjugate heat transfer : Conjugate heat transfer corresponds with the combination of heat transfer in solids and heat transfer in fluids. In solids, conduction often dominates whereas…

Aim :  To simulate the flow over Ahmed body and to plot for velocity and pressure contours, the vector and drag coefficient plot.   Theory : Ahmed Body : The Ahmed body represent a simplified vehicle model. This was first developed by SR Ahmed and hence named it as Ahmed body. The airflow around Ahmed body captures…

Aim : To simulate the flow over a cylinder and explain the phenomenon of Karman vortex street.    Objectives : PART-I Simulate the flow with the steady and unsteady case and calculate the Strouhal Number for Re= 100.  PART-II Calculate the coefficient of drag and lift over a cylinder by setting the Reynolds…

AIM : To create revolute, cylindrical, and translational joints between two rigid bodies and two deformable bodies Using the Ls-Dyna Solver                                                    …

AIM : Material modelling of  Hyperelastic rubber (MAT_077_H) and Ogden rubber (MAT_077_O) card from raw data and fit the experimental values to the raw data by the curve.   OBJECTIVE : 1. Extract the Engineering stress-strain curve from the given image. 2. Convert the data into mg-mm-ms units. 3. Plot the data as a curve…

AIM : To use the stress-strain curve of graphite iron casting extract the data from the given diagram by using the data digitizer and material modelling MAT_024(PIECEWISE_LINEAR_PLASTICITY) card using the LS-Dyna.     PROCEDURE : 1. First import the stress and strain data from the stress-strain curve by using a data digitizer.…

AIM : To compare the run time using explicit and implicit mass scaling to reduce the run time of a model and ensure the stability of mass scaling by using LS-Dyna.   PROCEDURE :   CASE 1 : Mass Scaling for Explicit method. 1. Import the keyword file in Ls-prepost. 2. The given model meshed with solid elements.…

AIM : To perform the head impact analysis by using LS-Dyna and calculate Head Injury criterion (HIC) values in different cases.   INTRODUCTION : Pedestrian safety simulation is a part of vehicle safety engineering. This study focuses on car and pedestrian interaction. The main focus of this is to reduce pedestrian injury…

Aim : To set up steady-state simulations to compare the mixing effectiveness when hot inlet air temperature is 360C & the Cold inlet air is at 190C.    Objective : Case 1  Short mixing tee with a hot inlet velocity of 3m/s. Momentum ratio of 2, 4.  Case 2  Long mixing tee with a hot inlet velocity of 3m/s. Momentum ratio…

AIM : To create a block of 10mm×10mm×10mm dimension with 10 elements for each direction. Simulate the tensile behaviour of the block and compare the results in simulation using ELFORM 1,2,-1 and -2.   PROCEDURE : 1. Import the given material in LS-Prepost. 2. Create the required block with given dimensions…

AIM :  Simulation of Flow through a Pipe (Hagen–Poiseuille Flow) in OpenFoam   OBJECTIVE :  Write a program in Matlab that can generate the computational mesh automatically for any wedge angle. Select appropriate dimensions and condition for the problem  Post process velocity profile, Pressure…

AIM : To simulate the spot weld joint component by using the LS-Dyna.   PROCEDURE : 1. Import the model in the .k file in LS-Pre post. 2. Create the Material and sections for components as shown below. MATERIAL : SECTION : 3. Assign the section and material to the components as shown below. 4. Create the spot weld beam…

AIM : To simulate a crash test for a crash box, plot the energies, cross-sectional force at the middle of the box through the length, plot acceleration and change the thickness compare both results by using LS-Dyna.   PROCEDURE : 1. Import the .k file in LS-prepost. 2. Create material by using keyword manager as shown…

AIM : Validation studies of Symmetry BC vs Wedge BC in OpenFOAM vs Analytical H.P equation   OBJECTIVE :   Performing simulation for various sector angles that are `4^(circ),10^(circ)`and `25^(circ)`. Performing the simulation of above angles with both Wedge and Symmetry Boundary conditions in OpenFOAM.…

Aim : To discuss about different types of Interpolation schemes and Flux Limiters used in finite volume method.   Finite volume method (FVM) : Finite volume method (FVM) can be used on all differential equations, which can be written in the divergence form. This effectively writes the equation…

Aim : The aim of this project is to create the geometry for incompressible cavity flow problem in OpenFOAM and also to simulate the flow through a backward facing step for different grading factor using icoFOAM solver.   Mesh specifications : Number of cells along the x direction (longer dimension) = 200 Number…

Aim : Simulation of a 1D Super-sonic nozzle flow using Macormack Method for conservative form as well as for non-conservative form.   Objectives : To simulate the isentropic flow through a quasi 1D subsonic-supersonic nozzle. To derive the conservation and non-conservation forms of the governing equations and…

Aim : The aim of this project is to solve steady and unsteady 2D heat conduction equation.   Theory : The heat conduction equation is a partial differential equation that describes the distribution of heat (or the temperature field) in a given body over time.   Assumption & Boundary…

Week 3.5 - Deriving 4th order approximation of a 2nd order derivative using Taylor Table method   Aim :  To derive central difference,skewed right difference and skewed left difference scheme for fourth order approximation of second order derivative by using, Taylor table of finite difference method.   …

Week - 3 Drop test Challenge   Aim: To Create drop test simulation using LS-DYNA   Objective :  To create material for different parts To create section for solid and shell elements. Assigning material and section ID to parts. Create Boundary conditions. Create Contact between phone and plate Assigning…

Week - 2 - Explicit and Implicit Analysis   Aim : To solve the equation `F(u) = u^3+9u^2+4u` in Explicit and implicit methods with tolerance of 0.001.   Theory : Difference between Implicit and Explicit methods :                           IMPLICIT…

Week - 1 - Consistency of Units   Aim : To convert the given measurement values to different unit systems.   Objective : Different industries use different system of units as per their convenience. The units for the basic measurement quantities, mass distance and time - dictate how the other derived…

Project 2 - Side Body Crash Simulation Challenge   Aim : To perform the simulation for Side pole crash analysis of a car with recommended parameters and to plot energy graphs and identify the differences. Objectives : Side Body-BIW Checking the unit system and either following [Mg mm s] or [Kg mm ms]. Creating appropriate…

Project 1 - Frontal Crash Simulation Challenge   Aim : To perform the crash on the frontal section of the car with wall and analysis where stresses are working on it. Objectives : Frontal crash-BIW Checking the unit system and either following [Mg mm s] or [Kg mm ms]. Creating appropriate interface, friction 0.2 and recommended…

  Aim : To create the mesh for given bumper assembly with element size of 6mm and to perform simulations for crash tube and to study the RADIOSS interfaces and the effect of notches using Hypermesh, Hypergraph 2D, Hyperview.   Objectives :  To create mesh for bumper assembly with mesh size of 6mm. To…

Assignment 4-RADIOSS Material Laws Challenge   Aim : To run crash analysis on the given model by applying different materials laws available in Radioss and post-process the results   Objective : To carry out simulations of the given starter files and compare the results. There shall be 7 cases (according to given…

Assignment 3-2D Element Formulation Challenge   Aim : Comparison of results with base simulation and improved shell element properties    Objectives :  (1) Changing the runtime to 55 ms. of crash beam file. (2) Changing the number of animation steps during simulation to a minimum of 25 and…

Aim : To perform engine file calculation, editing and 3D Meshing.   Objective 1 : Check the material properties of the rail component and calculate the speed of sound in steel rail We know that -- Calculation -- Speed of Sound = (Modulus/Density)^½             …

AIM: To mesh the given components as per given element qulaity criteria. Objectives:  1. To perform the geometry cleanup of three different components Practice, Clip repiar and mounting bracket. 2. To extract mid-surfaces of three given components from their parent geometry and cleaning up geometry from their…

Project 1 : Meshing of Door Inner Panel   Aim : To mesh on door inner panel and assign thickness.   Abstract : A car door is a type of door, typically hinged or attached by other mechanisms  in front of an opening which is used for entering and exiting a vehicle. These doors can be opened manually,…

Project 2 : Meshing of Rear Wheel Holder    Aim : To mesh the rear wheel holder body and assign thickness.   Abstract : The back wheel panel compartment is most often located at the trunk or rear of the vehicle. Trunk of a car is the vehicle's main storage or cargo compartment, often a hatch at…

Week 9-Creation of 1D Connectors Challenge   Aim :  To mesh the given geometry, create connector and attach the various parts of the given model.   Objectives : Mesh and create Seam-Quad(angled+capped=L) collector to Right Rail 2 andFront truss 1. Mesh  and create Quad Elements collector on Left…

Week 8-3D Tetra Meshing Challenge   Aim : To obtain 3D tetramesh to components with different methods.   Model 1 : Create a Teramesh 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.…

 Week 6 - Meshing of Hood Challenge    Aim : To mesh the hood and its components.   Objective : Generating Midsurface and geometry clean up on the given component. Generating mesh on the given component with low tria concentration and proper mesh flow. Model should pass all the given quality…

 Week 4 - 1D Element Creation Challenge    Objective : Mesh and Create 1D elements on the following component with given cross-section and DOF.   Given model image :                                    …

AIM : To study and analysis the BAJA All-Terrain Vehicle (ATV) using Simulink model. OBJECTIVE : To Prepare a technical report explaining the model properties & comments on the results. THEORY : All-Terrain Vehicle                An all-terrain vehicle (ATV), also known…

AIM :  To implement control logic of a “washing machine” using Stateflow. To make a Simulink chart for the “Gear shift” logic. STUDY 1 : To implement control logic of a “washing machine” using Stateflow. Given Sequence : If the power supply is available, the system gets activated …

Aim : To make a Simulink model of Doorbell using solenoid block. To make a Simulink model of thermistor to sense the temperature of a heater & turn on or turn off the fan. Objective 1 : To make a Simulink model of Doorbell using solenoid block.            …

AIM: To write a code in MATLAB to parse NASA thermodynamic data file and then calculate thermodynamic properties of various gas species.   OBJECTIVE: Write a function that extracts the 14 coefficients and calculates the enthalpy,entropy and specific heats for all the species in the data file. Calculating molecular…

OBJECTIVE : To optimise the stalagmite function and find the global maxima of the function by using MATLAB. THEORY : Genetic Algorithm : Genetic Algorithm (GA) is a branch of field of study called evolutionary comutation. It is based on evolution theory by Darwin. GA is used to optimize a given function to find…

AIM : To write a program that solves the second order ODE which represents the equation of motion of a simple pendulum with damping.   THEORY :                              In the above equation, g = gravity in (m/s^2), L = length of the pendulum in (m), m = mass of the ball in (kg), b=damping coefficient.   By substituting, …