Assignment 6-Frontal Crash Simulation Challenge

AIM: To solve the equation `F(u)=u^3+9u^2+4u` using explicit & implicit methods.   EXPLANATION:   Explicit: An implicit solver solves the unknowns in the numerical equations by the inversion of the matrices that make up the model. Larger models have larger matrices. This is because of the large number…

AIM: To write the given measurements in the above different system of units and mention the conversion factors. MASS 1kgLENGTH 1mTIME 1sFORCE 1NSTRESS 1PaENERGY 1NmDENSITY 1Kg/m3YOUNG'S Modulus  210GPaVelocity 56.33KMPHGRAVITY 9.8m/s2   CONVERSION TO DIFFERENT UNITS:   SI unit / Measured quanitites…

AIM: To build a battery pack of capacity 18 kWh with the cell ANR26650M1-B. Also prepare a detailed battery pack drawing along with its enclosure.   OBJECTIVE: The objective of the project is to know how a battery pack for an EV is designed and implemented, the challenges faced and tackling the challenges.  …

AIM: To Simulate 3 cases from harness dashboard and compare the result plots. To explain how BMS implements Coulomb counting to estimate SOC.   OBJECTIVE: The objective of the assignment is to learn what coulomb counting is, how that is implemented in BMS and how it helps to estimate SOC.   MODEL SETUP:  …

1.   Battery type Cathode Anode Discharging Charging Lithium Cobalt Oxide (LCO) Cobalt oxide Graphite carbon Anode gives up electrons & gets oxidised. Cathode accepts electrons & gets reduced (Cobalt oxide is reduced to Cobalt). Anode accepts electrons & gets reduced, Cathode gives up electrons & gets…

AIM: To perform side pole crush crash on the neon BiW model given.   OBJECTIVE: The main objective of the  project is to learn how and why the side pole crash test is done and the parameters involved.   PROCEDURE: First, the starter file is imported in the Hypermesh application using the Import solver deck…

AIM: To perform a frontal crash test with the given BiW frame in Radioss and request for outputs.   OBJECTIVE: The objective of this project is to learn to perform crash analysis and the parameters surrounding it.   MODEL SETUP: The model setup is a reduced version of a full car FE model for the frontal crash. There is…

AIM: To perform 3D solid mesh on the given component with the given quality criteria.   OBJECTIVE: The objective of the project is to learn to perform 3D solid meshing .   CAD MODEL: The given model is a turbocharger component which is most commonly found in today's vehicles primarily cars. A turbocharger is…

AIM: 1. To mesh the given bumper assembly. 2. To run the analysis of a crash box in radioss solver according to the given conditions.     PROCEDURE: 1. Meshing of bumper assembly: First the model is imported using the import option. Automesh command is opened (F12) and the target size is kept as 6mm. The surfaces…

AIM: To run the analysis of the given model in seven cases with the given setup and analyse the results.   OBJECTIVE: The objective of the assignment is to understand the different material card parameters and how they affect the simulation, the material failure, etc.   CASE SETUP:   Case               Setup 1 Case 1 analysis…

AIM: To mesh the given component with the given quality criteria and assign thickness.   OBJECTIVE: The objective of the project is to learn to mid-surface plastic components, mesh the mid-surface and assign thickness.   CAD MODEL: The given model is an Inner panel of the side door in a passenger car.  …

AIM: To mesh the given component with the given quality criteria and assign thickness.   OBJECTIVE: The objective of the project is to learn to mesh the mid-surface with complex features and assign thickness.   CAD MODEL: The given model is a spare tire holder which can be seen in most passenger cars nowadays.…

AIM: To perform the simulation of a crash analysis of a beam with a rigid wall and know about the results.   OBJECTIVE: The objective of the simulation is to get familiar with the Radioss solver and compare the results when the right properties are assigned in the property cards & when they are not assigned.  …

AIM:  AIM: 1. Radioss engine file: 1) Check the material properties of the rail component and calculate the speed of sound in steel rail=_______ 2) The length of the rail is about 1000 mm. Calculate the time taken for a shock wave to travel from one end of the rail to the other.3) 3) Time for sound to travel length of…

AIM: To perform geometry cleanup, mid-surface extraction and meshing on the given models.   OBJECTIVE: The objective of the assignment is to learn & get familiar with the hypermesh tool.   MODEL: Part 1: Part 2: Part 3: PROCEDURE: Part 1: First the model is imported using the import geometry command. Then…

AIM: To mesh the rear tailgate of a car with the quality criteria and assign material & property cards.   OBJECTIVE: The objective of the project is to learn methods of mid-surface extraction, their pros & cons, and use the methods to extract mid-surfaces and mesh the mid-surfaces.   MODEL: The tailgate…

AIM: To mesh the given model and create connectors and attach the various parts of the given model.   OBJECTIVE: The objective of the project is to learn the different connectors and welds in Hypermesh and deploy them.   PROCEDURE: First the model is imported using the Import model option.      …

AIM: To create tetra mesh for the given set of components.   OBJECTIVE: The objective of the project is to get familiar with solid meshing and the methods of clearing quality issues for tetra elements.   MODEL: 1. Housing:     2. Crank casing:     3. Component 3:        …

AIM: To check for geometrical errors in the given component and mesh the component using the given Quality Criteria.   OBJECTIVE: The main objective of the project is to learn and improvise the methods of mid-surface extraction, namely manual and automatic mid-surface generation, and meshing the component.  …

AIM:   To extract mid-surface of the CAD model & mesh with the given quality criteria.   OBJECTIVE:   The objective of the project is to learn to extract mid-surface and mesh the mid-surface with given quality criteria with least failing elements.   PROCESS: 1. Perform geometry cleanup. 2. Mid-surface…

AIM: To do geometrical clean up on the given component and mesh with the given element quality criteria. Use tria elements to create surface mesh and generate tetra volume mesh (unstructured volume mesh).   OBJECTIVE: The main objective of the project is to learn tetra or unstructured meshing with tetra elements.…

AIM: To check for geometrical errors in the given CAD model and mesh the model with the given quality criteria. OBJECTIVE: The objective of the project is to mesh plastic components and obtain a mesh with minimal element failure and maximum feature capturing. PROCESS: Perform geometry clean up and resolve geometry errors.…

AIM: To calculate the energy required for braking in a driving cycle. To state why electric motors cannot develop high braking torque at high speed as similar to the case in starting and state how electric & mechanical brakes are coordinated together in a braking scenario. To write a MATLAB program which plots contour…

AIM: To run MATLAB demo ‘Speed control of a DC motor using BJT H-bridge’ and modify the model such that armature current doesn’t shoot up when motor changes direction from forward to reverse.  Compare Four-Quadrant Chopper DC Drive (DC7) and H-bridge. Make a suitable EV model using the DC7 block.…

AIM: To know the types of power converters circuits employed in HEVs & EVs. To calculate the steady state speed for an EV with the given parameters. To refer to the Induction Versus DC Brushless Motors blog and briefly explain about the topic discussed.   OBJECTIVE: To study the different types of power converters…

AIM: 1. To understand Mapped models and Dynamic models. 2. To understand how the fuel efficiency is calculated in miles per Gallon and the factors affecting the model fuel flow. 3. To study the effect of gradient and wind velocity on the simulation in HEV powertrain. 4. To compare the above simulation results with a EV…

AIM: To do geometrical clean up in the given component and mesh the component with first order 2D elements using the given quality criteria.  OBJECTIVE: The main objective of the project is to improvise the methods of mid-surface extraction for sheet metal and plastic components and mesh the component without quality…

AIM: To use the ADVISOR tool and simulate: The EV_defaults_in file in FTP (Federal Test Procedure) driving cycle with cargo mass as 500 kg and other default conditions. The same simulation with increased battery capacity. The PRIUS_Jpn_defaults_in file for gradeability test.   OBJECTIVE: The objective of the…

AIM: To implement control logic of a “washing machine” using State-flow as per the given sequence. To make a Simulink chart for the “Gear shift” logic as per below conditions.   OBJECTIVE: The objective of the project is to implement control logic using state-flow and create Simulink models…

AIM: To make a Simulink model of a doorbell using the solenoid block. To make a Simulink model to use the thermistor to sense temperature of heater and turn on & off fan as per given conditions.   OBJECTIVE: The objective of this project is to learn to solve problems by simulating using Simulink with basic models.…

AIM: To write a MATLAB program function to extract the 14 co-efficients, calculate the molecular weight, enthalpy, entropy and specific heat from the given data file. GOVERNING EQUATIONS: Equation for Specific heat:         `C_p / R = a_1+a_2T+a_3T^2+a_4T^3+a_5T^4` Equation for Enthalpy: …

AIM: To write a MATLAB program to optimise the stalagmite function and find the global maxima of the function. GOVERNING EQUATIONS: `f(x,y) = f_1,xf_2,xf_1,yf_2,y` `f_1.x = [sin(5.1pix+0.5)]^6` `f_1.y = [sin(5.1piy+0.5)]^6` `f_2,x = exp[-4ln(2)((x-0.6667)^2/0.64)]` ``f_2,y = exp[-4ln(2)((y-0.6667)^2/0.64)]`` OBJECTIVE:…

AIM: To write a program to solve the second order Ordinary Differential Equation (ODE) representing the motion of a simple pendulum.   GOVERNMING EQUATIONS:  In the above equation, θ is the angle, t is the time span for integration. Damping co-efficient is represented by b, Mass of the pendulum (bob) by…

AIM: To do geometrical clean up for the given component, mesh the component with the given quality criteria and deploy appropriate connections on the FE model. OBJECTIVE: The main objective of the project is to mesh & deploy connections on a real-time suspension model of a passenger car along with the wheel and tyre.…

AIM: To learn & practise basic morphing techniques. OBJECTIVE: The objective of this project is to learn & familiarize with the basic morphing techniques in ANSA. SOFTWARE USED: ANSA (Automatic Net generation for Structural Analysis) v19.0.1 64-bit MORPHING: Morphing is the process of modifying the design of the…

AIM: To compare the mid-surface and mesh generated by Skin option, Casting and Batch mesh option for the given CAD model and determine the best method among them. OBJECTIVE: The objective of this project is to learn & get familiarized with the different methods of mid-surface extraction and meshing and find out the…

AIM: To deploy connections on the given FE model of a passenger car rear door. OBJECTIVE: The objective of the project is to learn & practise the concepts of deploying connections on FE models. PROCESS: Importing method for .nas model Deploying various connections Defining CONMASS Creating spot weld Changing the orientation…