Week - 2 - Explicit and Implicit Analysis

Aim- The aim of this challenge is to solve the below BIW frontal assembly crash test with a rigid wall using the above conditions.    Procedure- The first step is to import the above .rad file into hypermesh with a radioss profile. Then check the unit system to maintain a constant unit system. In this case,…

Bird Strike in Aero Engine Aim: Separate the given model to each file according to parts and then run the model using include keywords. The parts (blade, hub, casing & bird), related properties in different files, boundary conditions, and solver deck should be in the main file.  Procedure: The first step is to…

Given the material data below, calculate the Mooney Rivlin and Ogden material constants and compare the both using stress-strain data from a Dogbone specimen tensile test with 100 percent strain. The given data is the engineering stress-strain in MPa/(mm/mm). The comparison should be shown from the d3hsp file and using…

Here is the workflow: Extract the data from the diagram  Clean the data and visually confirm that it matches the original data and the elastic modulus is 20.9E+06 psi. Convert the data to (kg-mm-ms) unit system Process the data and create the material as demonstrated Use the material model with a dogbone specimen and validate…

Live Session Case 1  Import the FAILURE_JOHNSON_0000.rad file and run the model as it is. Give the title name as Law2_epsmax_failure. After running the above rad file I've got the below results. As the elements are deleted as the maximum plastic strain value reaches eps_p_max, so there is a small drop in…

Live Session 1.Using the crash beam file from the previous assignment, change the run time to 55 ms. Old file without change Run time = 55ms 2. Change the number of animation steps during simulation to a minimum of 25 and maximum of 60. Let's take animation steps = 55 So the time frequency = `55/55 = 1` 3. Run…

Live Session   1. Check the material properties of the rail component and calculate the speed of sound in steel rail=_______ Unit followed is = gm-mm-ms Material name= Steel Density (`rho`)= 0.0078 gm/mm3 Young's modulus(E)= 210000 Mpa Speed of sound in rail (c)= `root()(E/rho)=root()(210000/0.0078)=5188.7`mm/ms…

  Use mass scaling to reduce the runtime of a model and ensure the stability of mass scaling. The hard limit on mass scaling is 8% and stability should be completely intact. This means that two simulations, one with mass scaling and one without should behave exactly the same way. The submission should contain the…

Week-7  The impact simulation of a simple head impact with the Rigid wall. The impact simulation of the Headform provided with the Rigid wall with the Stress / Strain plots and acceleration plot. The impact simulation of the head form with the Hood with the Stress / Strain plots and acceleration plot. For the hood,…

Aim:  The aim of the challenge is to analyse the elongation of a cubical substance of dimension 10*10*10 cubic mm of Ogden material.  Procedure:  The first procedure is to open the model in the LS-Prepost. As there aren't any fem parts but a material keyword exist in the keyword entity.   The next step…

   Aim:- The aim of this challenge is to analyse the crash of a crush box with a rigid wall, the model is given below.    Procedure:- The first step of this challenge is to open the model in the LS-Prepost. The next step is to create a section card for the shell element and consider element formulation…

Aim:- The aim of this challenge is to model two kinds of spot welds one from beam elements and the other from solid elements and compare them for the below shell mesh.   Procedure:- Spot weld with Beam Element:- The first step is to open the model in LS-Dyna Pre-post.   The next step is to create beam elements…

  *For the below simulation the units are followed are gm-mm-ms. Aim: This challenge aims to get a first-hand experience of the LS-Dyna simulation procedure for the arrangement given below.   Procedure: The first step is to open the .k file in the LS-Prepost environment.    Then check the Part…

Aim:- `f(u)=u^3+9*u^2+4*u`, The aim is to analyse the given equation using the equal load increment method with both explicit and implicit load control schemes. Procedure:- Explicit Analysis `f(u)=u^3+9*u^2+4*u` `k(u)=(df)/(du)=3*u^2+18*u+4` `DeltaF=k*Deltau` `DeltaF =1` , Incremental step for external force  f =…

MASS 1kgLENGTH 1mTIME 1sFORCE 1NSTRESS 1PaENERGY 1NmDENSITY 1Kg/m3YOUNG'S Modulus  210GPaVelocity 56.33KMPHGRAVITY 9.8m/s2 We have to convert these to respective systems. Kg cm ms Kg cm s g mm ms kg m s g cm s g cm us g mm s ton mm s slug ft s kg mm s g cm ms kg mm ms   Solution Units:  Units are standards…

Objective: Part-1: Clean the geometry and mesh with proper quality criteria of geometry part-1. Part-2: Clean the geometry and mesh part-2 with proper quality criteria. Part-3: Clean the geometry and mesh part-3 model with quality criteria given in the question. Procedure: Part-1 The first step is to open the…

Objective: The objective of this project is to extract a mid surface out of the given geometry and mesh with proper flow for the below geometry. Procedure: The first step is to import the geometry into the Hypermesh GUI.   Then identify very small features which can't be traced with the given criteria values. As these…

Objective: The objective of this project is to mesh the above model with the given criteria by following all the necessary constraints. Procedure: The first step is to import the geometry to the Hypermesh GUI,   The next step is to defeature the small surface fillets and ensure proper topology cleanup.   The…

Connecter Challenge: Objective: Create mesh for the model given below and connect individual FEA models using the connector suggested in the question. Procedure: The first step is to import the geometry into the Hypermesh GUI as shown below,   There are 9 different components in the model which are given…

Model-1 Objective: The objective is to create tetra mesh using the 2D to 3D conversion method of the below geometry.   Procedure: The first is to import the first mode into the Hypermesh GUI. As there are two different components in the geometry we have to mesh it differently. First bringing one component into the…

Objective: To create a mid surface and mesh each component individually for the model given below. Procedure:     The first step is to import the model given in the question.    Then deleting the solids from the model to get surfaces only. After deleting the solids we end up only with the…

Answer Objective: Creating mesh of the bracket and 1d elements on the following component with given cross-section and DOF of below model. Procedure: Importing the geometry- First of all the model need to import as geometry in hypermesh GUI.  Confirming the model- Checking all the deformities in the model. As we can…

RANKINE CYCLE SIMULATOR Simple Rankine Cycle Rankine cycle consists of certain predefined thermodynamic processes which in symphony produces power by utilising an energy-dense chemical reagent for energy input. The cycle is used mainly in Steam Powerplant. Where the working fluid is superheated steam, which is used…

1. Write a function that extracts the 14 co-efficients and calculates the enthalpy, entropy and specific heats for all the species in the data file. You will be reading this file NASA thermodynamic data(Tip: use fopen and fgetl). The formulae are shown below.  Here R is the universal gas constant, T…

  Try to understand the concept of genetic algorithm by referring to varius sources before you attend this challenge. Look out for information regarding stalagmite function and ways to optimise it. Write a code in MATLAB to optimise the stalagmite function and find the global maxima of the function. Clearly…

 1. Your objective is to write a program that solves the following ODE. This ODE represents the equation of motion of a simple pendulum with damping   Concept of Pendulum motion and its Dampening: The above equation given is the second-order form of a motion of a pendulum in damping. The given damping coefficient…

Create a MATLAB model of an electric car which uses a battery and a DC motor. Choose suitable blocks from Powertrain block set. Prepare a report about your model including following: Objectives:         1. System level configurations        2. Model parameters    …

  Part A: 1. Search and list out the total weight of various types of aircrafts.  Weight is the force generated by the gravitational attraction of the earth on the airplane. Each part of the aircraft has a unique weight and mass, and for some problems, it is important to know the distribution. But for total aircraft…

1. For a defined driving cycle, calculate the energy required for braking.   The energy required for acceleration or deceleration is nothing but the kinetic energy required by the vehicles. The energy required for acceleration is equal to the energy required to decelerate. In both cases, external energy is given to…

1. A. Explain a MATLAB demo model named ‘Speed control of a DC motor using BJT H-bridge’.     B. Comment on the armature current shoot-up from the scope results.     C. Refer to the help section of ‘The Four-Quadrant Chopper DC Drive (DC7) block’. Compare it with the H-bridge…

1.  Which types of power converter circuits are employed in an electric and hybrid electric vehicles?    Introduction to the Power converter Power electronics technology deals with processing and controlling the flow of electrical energy in order to supply voltages and currents in a form that optimally…

What is the difference between the mapped and dynamic model of engine, motor and generator? How can you change model type?  Mapped Model Mapped engines represent macro engine behaviour as a set of lookup tables as function of commanded load and measured engine speed. In the Mapped models the data is taken from the…

1.   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? ADVISOR is an ADvance VehIcle SimulatOR We can benefit form ADVISOR tool if we want to - estimate the fuel economy of the vehicle that is…