Pedestrian Head Impact Simulation and HIC value calculation in Ls Dyna

  AIM: To create a 2D mesh  in the HOOD of a car according to the given quality criteria. PROCEDURE The given component is a hood model which is also called bonnet of a car. This part is a sheet metal part and so that thickness is very low. So instead of going for 3D meshing, We can go for 2D meshing. For that…

AIM To do the FRONTAL CRASH on a surrogate model of Neon Dodge based on the Federal Motor vehicle safety standards. OBJECTIVE Import the preprocessed model of the Neon Dodge surrogate model and model the FEAmodel in such a way that the required output requests can be postprocessed from it.The required output requests are…

AIM: To create a 2D mesh  in the HOOD of a car according to the given quality criteria. PROCEDURE The given component is a hood model which is also called bonnet of a car. This part is a sheet metal part and so that thickness is very low. So instead of going for 3D meshing, We can go for 2D meshing. For that we need…

Aim Using Ls dyna do the Pedestrian Impact simulation and  check for the HIC value of the impact and thereby optimizing the hood model to be safer for the pedestrians. OBJECTIVE We need to do the impact simulation of the Hybrid III dummy head model  into te hood of an automobile to simulate the real life pedestrian…

AIM Setup the deck for Bird Strike Simulation and evaluate the results   CASE SETUP We are having bird strike simulation model with us.We need to choose each components like bird , casing, blades , and the hub.EAch of these needs to be saved as differant differant keyword file.Then again open a Ls prepost and save…

OBJECTIVE To do a grid dependancy simulation test on the model at the mesh sizes of 6 mm, 5mm, and 4mm on a meshed bevel gear pair and postprocess the results obtaind.   Grid Dependancy Test   Grid dependency test is to investigate how the solution depends on the grid size by running the simulation with refined…

OBJECTIVE Set up the sheet metal bending simulation with a die, sheet metal plate and a punch in ANSYS for all the below three cases and compare ther esults for all the three cases. Case 1:Use  the matriasl Aluminium Alloy 1199,Copper Alloy NL and Magnesium Alloy NL to sheet metal plate. Find out the Equivalent stress,…

OBJECTIVE Perform a static structural analysis on the Railwheel and Track setup and 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 under both the loads Case 2: Implement a User defined result and calculate the Total…

OBJECTIVE To create a Tk window which can be used to check the quality of elements.Entry boxes should accept the input and the buttons in it should display the failed elements for that quality using the temp nodes .This is used to locate the elements failed for respective quality criteria.So we need to do this process…

AIM To setup a static analysis deck in ansys for the spur gear to find out the equivalent stress, maximum deformation and stress intensity in the gear.And also find out the point of fracture in the gear as the gear tooth comes in contact. CASE SETUP Open the anays workbench first and drag the static structural analysis…

AIM 1) Create a plate of thickness 300 mm length and 120 mm width and 30 mm thickness.Also the plate will be having a circlular hole of dimension 30 mm at the centre.     2) In the first case we need to create an extra pair of holes of dimensions 30 mm diameter, at 90 mm part from the center of the first hole.…

OBJECTIVE To create a macro for generating a report of the FE model we created in the Hypermesh, So that we will get the details about the model in an excel format.The report will gave us the idea about the failed elemnts and its count,empty entities and the unused materials and unused properties.   PROBLEM STATEMENT…

Code sset a .window catch {destroy $a} toplevel $a -class Toplevel wm title $a "Automation Window" wm geometry $a 300x950+30+30 wm resizable $a 0 0 ; update wm deiconify $a # normal reverse and Normal off proc normal {} { *clearmarkall 1 *setnormalsdisplaytype 1 *createmark elements 1 "displayed" *normalsdisplay elements…

OBJECTIVE Connector : Create a macro that builds a GUI containing 4 buttons. The window muist be having the buttons named  Component creator, weld, xloc, yloc, zloc. Upon pressing the buttons corresponding 1D element must be created and moved to the desired collector. Reading nodes from a file : Create a macro that…

OBJECTIVE PART A   We need to create the macro for creating  midline of a tubular component like spring or pipe like componets. PART B  Also we need to create the macro for easily create the spotwelds and save those spotwelds in a seperate collector. PROBLEM STATEMENT The process of creating the midline…

Aim Create a macro that will reflect given multicomponent FE part with ease which  should be independent of deck and the Only inputs required are, original CAD comp, reflected CAD comp and original FE comps.And also we need  name of the reflect component should also be taken as input from the user.…

OBJECTIVE 1) We need to write a code which will show the components first in transparent mode and then the free edges and T edges on the elements displayed have to be displayed with the red colour for the free edges and the cyan colour for the T edges.And then a temp nodes have to be created in the areas where the equivalence…

OBJECTIVE We have the fully completed meshed model with us and before the delivery of the model we need to cleanup the model.Since we need to take the model to a solver for anlysis, we need to get rid of the empty entities , unused materials amd properties etc from the model. So manually doing this is a tedious tak, So…

  OBJECTIVE We need to create a macro for creating components and property colllectors in the Hypermesh by taking the user input   PROBLEM STATEMENT When we are working on large models  we everytime need to create  componenets,properties and then we need to assign thickness to the respective component,…

OBJECTIVE PART 1 :-  Using the tk coding create two buttons which will do element reverse operation and the other one willswitch off the normal. PART 2 :- And we assign each of these procedures  to different buttons in the keyboard.   TCL CODE EXPLANATION   *clearmarkall 1 *setnormalsdisplaytype 1 *createmark…

Aim Using the given data find out the Mooney Rivlin and ogden constants  and compare the material data from simulation and d3 hsp file to the actual given material data   Objective In Ls Dyna we can define the hyperelastic material using Mat_77 material card which are the  MAT_77_Hyperelastic_Rubber and…

AIM Create the appropriate meshed componenets and illastrate the creation of translational,cylindrical,spherical and revolute joints in Ls Dyna OBJECTIVE To getting to clearly know how the important types of joints such as cylindrical,translational,spherical adn revolute joints works in ls dyna and how we can create those…

AIM Create a MAT_24 material data from the given curve and validate it by using it in the dogbone specimen OBJECTIVE The data we need to input into the ls dyna will be the effectiv plastic strain vs effective stress curve.But the curve we ontained from the lab test will be of true stress vs true strain.So we need to convert…

AIM To compare the same simultions using the control_timestep card and without that card and optimize the dt2ms and tssfac values for better stability and  lesser runtime OBJECTIVE Here we are provided with the fully prepared deck with the control time step card.Control_timestep card has a parameter called DT2MS which…

Aim Create a solid meshed box with 10 x 10 x 10 mm dimensions and apply it with the ogden material model and do a tensile test on the same . Objective First we need to make the solid element meshed box with the 10mm x 10mm x 10mm dimension.Then we need to include the ogden material model in it and assign that to the part.…

AIM To study the crash simulation of a assembly model with spotwelds and study differances in forces devoloped when the spot weld is modeled  with beam elemant and with soild elements. OBJECTIVE We have a Assembly model with two parts with us and we need to prepare a deck for simulation in which this is crashing into…

 Aim Create the solver input deck for the drop test of a smartphone OBJECTIVE Here we are provided with a only mesh file of the drop test.this file basicallyt contains the mesh.So when we input the .k file in LS Dyna it will be the showing only the ELEMENT,NODE,PART keywords only, becuase the file is having no information…

AIM To study the crash simulation of a crashbox crashing into a rigidwall  OBJECTIVE We have a crashbox meshed model with us and we need to prepare a deck for simulation in which the crash box crashing into a rigid wall .At first we just assign onlly an elastic material to the crash box so that we can check for the…

AIM Convert the given measurements from Si unit system to other differant system of units   OBJECTIVE   MASS 1kg LENGTH 1m TIME 1s These are the fundemental quantities in SI unit system FORCE 1N STRESS 1Pa ENERGY 1Nm DENSITY 1Kg/m3 YOUNG'S Modulus  210GPa Velocity 56.33KMPH GRAVITY 9.8m/s2 These are…

AIM  3D mesh the chassis and suspension assembly using tetra elements and integrate the parts using the proper connections OBJECTIVE  The suspension system is basicaly the series of parts which support the vehicle as it moves on the road. These are components which give your vehicle the ability to make turns…

Aim Using the method os 2D meshing to mesh the Instrumental panel of an automobile car OBJECTIVE The given component is a Instrumental panel  model  of a car. This part is a plastic component and so that thickness is varying . So instead of going for 3D meshing, We can go for 2D meshing. For that we…

AIM Understand  what are the applications of the morphing phenomena in  core automotive industries and also learn how to do the basic morphing in the preprocessor ANSA   OBJECTIVE The morphing is  a  technique used in the indusrties for making the design optimisation faster.This is done in the…

AIM  2D Mesh the given plastic component wih the given quality criteria. OBJECTIVE To mesh the given platice component we need to take the midsurface of the component.But since the component is plastic and having varying thickness across the geometry,we need to go for manual midsurfacing and then we need mesh the…

AIM Make the necessary connections for the Backdoor automobile door given OBJECTIVE Once we are done with the meshing of the relevant components ,our ultimate aim is make it for the analysis and find out the results we want  to check from it such as whether it is durable,weather it is producing a large amount of penetration…

AIM  We need to create a 3D Tetra mesh model of  the Rear View Mirror component given  OBJECTIVE The component having more than 6 mm thickness are meshed in a special way.Those componenets cannot be meshed using the 2D meshing technique, because the range of error will happen to the simulation results will…

OBJECTIVE To 2D mesh the floor panel of the car with the given quality criteria and after meshing assign the thickness to the mesh. PROCEDURE The given component is a floor panel of the car . This part is a sheet metal part and so that thickness is very low. So instead of going for 3D meshing, We can go for 2D meshing.…

AIM: To create a 2D mesh  in the backdoor of a Hatchback car according to the given quality criteria. PROCEDURE The given component is a backdoor model of a hatchback car . This part is a sheet metal part and so that thickness is very low. So instead of going for 3D meshing, We can go for 2D meshing. For that we need…

 AIM : Create a simulation of forward kinematics of 2R robotic arm using Matlab. Theory: Robotic arm is a mechanical arm which works on the basis of the code or program used in it.It uses the program to do the required action.Robotic arms are used in several industrial applications like casting ,machining,welding…

 AIM Carry out the geometry cleanup operation on the given 3 files. Practice  Clip Repair Mounting Bracket   OBJECTIVE We need to mesh the given components.These given parts are  sheet metal parts and so that thickness is very low. So instead of going for 3D meshing, We can go for 2D meshing. For that…

AIM To do the Quasi-static Roof crush anlysis in Neon Dodge Surrrogate model OBJECTIVE We need to model the neon Dodge model and impactor such that the impactor is crushing the Roof of the Car model.And obtain the outputs such as force vs. displacement plot and  energy vs. time curves. Also Check whether  that…

AIM To do the SIDE CRASH ANALYSIS on a surrogate model of Neon Dodge based on the Federal Motor vehicle safety standards. OBJECTIVE Import the preprocessed surrogate model of the Neon Dodge and model the FEA model in such a way that the required output requests can be postprocessed from it.The required output requests…

AIM To mesh the Bumber model with 6 mm element size To find out the differences between differant type of contact interfaces avaliable within the radioss solver and study the impact of various parameters  in defining contact in the crash tube model. OBJECTIVE Create the mesh for bumper assembly,mesh size should be…

Aim : Write a program to calculate drag force over a cyclist and create plots showing variation of drag force with coefficient of drag and velocity. Theory Drag is a mechanical force created by a solid when moving in a fluid.This is a resistance force exerted by the fluid medium in which we try to make a motion.This force…

 OBJECTIVE Attach the given parts in the model with the connectors mentioned    PROCEDURE   Connectors are used to connect the differant FE entities.After the meshing we need to connect the components with various connectors like seam weld,spot weld,bolt, adhesives are also used.Without conectors the…

AIM  Comparing the simulation results of the base setup and improved shell element properties OBJECTIVES 1.Using the crash beam file , change the run time to 55 ms. 2. Change the number of animation steps during simulation to a minimum of 25 and maximum of 60. 3. Run the base simulation without any modification…

AIM   Comparing the analysis results of the 7 cases of the material applications. OBJECTIVE The component in the model is a rupture plate and it is collided by a punch at a velocity.And we need to assign the different material Laws to the plate and analyse the collision simulation for each  material laws.And…

OBJECTIVES 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 takes for a shock wave to travel from one end of the rail to the other. 3.Time for sound to travel length of rail. 4.Edit the engine file so…

OBJECTIVE  create a 3 D meshes on the geometries given below by maintaining a TET Collapse of .15mm.   fig 1 housing   Fig 2 Hub Mesh the housing and hub with minimum element size of 2 mm and maximum elemnt size of 7 mm and target element size of 5 mm.And maintain a TET collapse of 0.15mm.   Fig 3 Crank…

OBJECTIVE  To batch mesh the hood and fender model with the given quality criteria. PROCEDURE Batchmesh is an automatic meshing technique which is available in many newly introducing CAE softwares.It is the process in which we give the required parameters and criteria as the input and the software will do the geometry…

OBJECTIVE To create a 2D mesh in the side door plastic component according to the quality criteria.And apply thickness to the mesh. PROCEDURE   The given component is a SIDE DOOR model which is a plastic component. And these type of plastic components having varying thickness . And they are having large number of…

  OBJECTIVE     TO take the midsurface of the given component and create 1D element with the given cross section in the component with given degree of freedom. PROCEDURE   The process start with opening the hyperworks and select a solver, let it be optistruct. Then using the import option, we can…

Simulation of Transient behaviour of simple pendulum   Aim: To create a simulation of transient behvaiour of simple pendulum using matlab program. Theory involved Simple pendulam is having a string which is attached to a fixed end and a bob tied at the other end of string and it  moves in Simple harmonic motion.Newton\'s…

Aim: To create the PV diagram of an otto cycle using matlab program and output its thermal efficiency. Theory Otto cycle is  a set of processes the spark ignition engines use to produce power.It involves 4 strokes.At the first stroke the piston moves from Top Dead Cente(TDC) to Bottom Dead cente(BDC) and sucked the…