Comparison of crash tube results with default property simulation and improved shell element properties

CRASH BOX SIMULATION   AIM: To create a complete simulation file for-crash analysis of crash box having two different thickness of 1.2 mm and 1.5 mm from the given FE model of crashbox and produce the following deliverables.   Input. k file and output files (D3PLOT, GLSTAT, SLEOUT, RCFORC) Animation of the final…

DROP TEST CHALLENGEOBJECTIVE: To build the input deck for a drop test simulation from scratch. Note: The orientation of the cellphone is also important and there are specific guidelines on how to orient the products but for this assignment, we will ignore that. The objective of this assignment is not to get a correct simulation…

AIM: To solve the equation `F(u) = u^3+9u^2+4u` using both explicit and implicit methods with a residual tolerance of 0.01. In the equation, F-Force in the bar and u-displacement in the bar. The problem is solved by both explicit and implicit analysis methods. In both cases an incremental load control scheme is used.…

AIM: 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 as shown in Fig. You need to plot for CO2, H2O, CH4, N2, O2, NOx emissions & Soot formation.  THEORY: Combustion of…

AIM: To perform a parametric study on the gate valve simulation by setting the opening from 10 % to 80%.  THEORY:Gate valves are used to shut off the flow of liquids rather than for flow regulation. When fully open, the typical gate valve has no obstruction in the flow path, resulting in very low flow resistance.…

AIM: To perform a CHT analysis on a exhaust manifold INTRODUCTION:  The analysis type of Conjugate Heat Transfer allows the simulation of the heat transfer between solid and fluid domains by exchanging thermal energy at the interface between them. Typical applications of this analysis type are the simulation of the…

AIM:Explain different CFD models used for solving Rayleigh Taylor Instability problems Perform a Rayleigh Taylor instability analysis using the Volume of Fluid (VOF) multiphase model for air and water. Repeat the process for water and user-defined material with density = 400 kg/m3, viscosity = 0.001 kg/m-s, and compare…

AIM:To learn setting up a discrete phase modeling case in ANSYS Fluent. To calculate the efficiency of the given cyclone geometry. To analyze total erosion on the separator’s surface due to the particles.INTRODUCTION:             A cyclonic separation is a method of removing particulates…

AIM: To perform CHT analysis on the graphic card. OBJECTIVES: 1) To learn the procedure for CHT analysis in ANSYS Fluent 2) To understand various meshing concepts and methods 3) To infer various physical parameters from the simulation INTRODUCTION:  A CHT (Conjugate Heat Transfer) analysis is useful where there are…

OBJECTIVE  Describe Ahmed's body and its importance. Explain the reason for the negative pressure in the wake region.   Explain the significance of the point of separation.  INTRODUCTION The Ahmed body is simplified car body used in automotive field to study the impact of the flow pattern on the drag.…

OBJECTIVE: To set up and run a Quasi-static Roof crush analysis on a reduced model of a Neon car as per FMVSS 216 Introduction :Roof crush simulation Federal Motor Vehicle Safety Standard No. 216 (FMVSS 216) first published in 1971 specified the test requirements and configurations of Roof crush process. The roof strength…

AIM: 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 manually…

AIM:  To create a macro file using TCL/TK to auto reflect elements from the given FE part to another component in Hypermesh.   PROCEDURE:   The macro for auto reflecting elements must do the following:   1. Input the name of new component in which reflected elements will be stored 2. Ask the user for…

AIM: Simulate the flow over a cylinder and explain the phenomenon of Karman vortex street. INTRODUCTION Vortex Shedding: Vortex shedding is an oscillating flow that takes place when a fluid flows past a blunt body at certain velocity. In this flow the boundary layer separated from the surface forms a shear layer which…

AIM: To set up steady-state simulations to compare the mixing effectiveness when hot inlet temperature is 360C & the Cold inlet is at 190C.  INTRODUCTION: Computational fluid dynamics (CFD) is a branch of fluid mechanics that uses numerical analysis and data structures to analyze…

AIM: To create a widget containing buttons for toggling normals display and for reversing the normals in Hypermesh using tcl/tk. THEORY: We need a proper orietation of normals because when load is applied, the load travels in some path. If in that path the normals are not oriented properly the calculations related to stress…

AIM:  To conduct frequency analysis on rotating shafts and find the resonant frequencies and 5 modal shapes respectively THEORY: All objects have a natural frequency or set of frequencies at which they vibrate. The quality of the sound produced by a vibrating object is dependent upon the natural frequencies…

AIM: 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 INTRODUCTION: A universal joint (universal coupling, U-joint, Cardan joint, Spicer or Hardy Spicer joint, or Hooke's joint) is a joint or coupling…

AIM: Perform a static analysis on two models of plate with holes MATERIAL PROPERTIES: The material of both the plates is chosen to be Alloy steel, the properties of which are given in the below table. Name: Alloy Steel Model type: Linear Elastic Isotropic Default failure criterion: Max von Mises Stress N Yield strength:…

AIM: To perform an explicit dynamics simulation 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.  Case one will be with a cutting velocity of 20000mm/s and case two will be with a cutting velocity…

AIM: To do a geometrical cleanup and mesh the given bottle cap THEORY: As the thickness of the component is generally less we go for 2D meshing here SOFTWARE USED: ANSA TOOLS USED: Delete: The universal delete function can be used to delete the unwanted entities like curves,,faces etc Release: This option helps to…

AIM: To perform a transient structural analysis on a worm gear assembly THEORY: A worm gear is a gear consisting of a shaft with a spiral thread that engages with and drives a toothed wheel. Worm gears are an old style of gear, and a version of one of the six simple machines. Basically, a worm gear is a screw butted up…

OBJECTIVE: To perform a frontal car crash simulation using explicit dynamics and perform a parametric study for the thickness of car body for the values 0.3,0.5and 0.7mm.  THEORY:  Crashworthiness is the ability of a structure to protect its occupants during an impact. This is commonly tested during the safety…

AIM: For this challenge, we have to perform the analysis to simulate a sphere pressing on a plate and capture the region of plastic deformation THEORY: In engineering, deformation refers to the change in size or shape of an object. Displacements are the absolute change in position of a point on the object. Deflection is…

OBJECTIVE: To perform a tension and torsion test on the specimen provided. For the tension test, displace one end of the specimen to 18mm while keeping the other fixed. Find out the total deformation, equivalent stress and temperature of the specimen. For the torsion test, displace one end of the specimen to an angle of…

AIM: To simulate a bullet penetrating into a bucket using 3 different non linear materials for the bucket and analyse their behaviour for the same velocity of bullet INTRODUCTION: Terminal ballistics (also known as wound ballistics), a sub-field of ballistics, is the study of the behavior and effects of…

AIM: For this challenge, simulate the bending of the IPhone as per the given cases below Case 1: Simulate the model without any change in the pushin fingers position 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.…

AIM: To perform a transient analysis on a piston and cam mechanism model with Frictionless contact, Frictional with 0.1 and 0.2 as the frictional contact for a total of 3 cases INTRODUCTIONA Cam is a mechanical device used to transmit motion to a follower by direct contact. The driver is called the Cam and the driven…

AIM: 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 stress and Equivalent strain on the wire alone. INTRODUCTION Although there are many…

SHEET METAL BENDING OBJECTIVES: In these challenges, Sheet metal bending is to be performed for 3 different materials mentioned below. Variation of certain settings is also to be performed and your conclusions are to be added to the report Run the analysis for the material: Case 1:Aluminium Alloy 1199( mentioned in the…

AIM: To perform a copper rolling sheet simulation using Ansys workbench THEORY: In metalworking, rolling is a metal forming process in which metal stock is passed through one or more pairs of rolls to reduce the thickness, to make the thickness uniform, and/or to impart a desired mechanical property. The concept is similar…

AIM: Simulate three different types of welding using three different weld materials THEORY: Welding is a fabrication process whereby two or more parts are fused together by means of heat, pressure or both forming a join as the parts cool. Welding is usually used on metals and thermoplastics but can also…

AIM: Perform a grid dependency test for the Bevel gear simulation for mesh sizes of 6,5 and 4 mm INTRODUCTION: Bevel gears are gears where the axes of the two shafts intersect and the tooth-bearing faces of the gears themselves are conically shaped. Bevel gears are most often mounted on shafts…

OBJECTIVE: To perform various analyses on spur gear and conclude a better material based on our analysis. Casewise analysis is to be performed in which we are given 3 material which has to be assigned and studied. THEORY Spur gears or straight-cut gears are the simplest type of gear. They consist of a cylinder…

1. Objective: This challenge makes us know which design is better as per the results of the analysis as well as the manufacturing point of view.  Determine the maximum deformation and stress developed in the model. Compare both the results and select suitable results Steps to be taken during the analysis 1- Open the…

AIM: Neon BIW side crash analysis as per FMVSS 214 standards THEORY Crashworthiness is the ability of a structure to protect its occupants during an impact. This is commonly tested when investigating the safety of aircraft and vehicles. Depending on the nature of the impact and the vehicle involved, different criteria…

AIM: Frontal crash analysis of a reduced neon car model OBJECTIVE: Check unit system and either follow[Mg mm s] or [Kg mm ms]. Create appropriate interface ,friction 0.2 and recommended parameters. Make sure of no penetrations and intersection. Correct rigid bodies if any issues. Create rigid wall with friction 0.1. Compare…

 OBJECTIVE: To analyze the plate failure behavior using different material models  THEORY: In FEA non-linear simulation, material modeling is a very complex step where you need to capture the plasticity of the material accurately and its failure. This experiment will use model with different material laws like…

OBJECTIVE: Comparison of results with base simulation and improved shell element properties 1.In 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 to element properties.…

AIM: To obtain the speed of the sound and 3D mesh the given component THEORY: Computer-aided engineering also known as CAE is the broad usage of computer software to aid in engineering analysis tasks. It includes finite element analysis, computational fluid dynamics, multibody dynamics, durability, and optimization Meshing is…

AIM: Mesh the following component and assign the corresponding thickness:   S.N Quality Criteria  Value  1 Min Length 3.5 2 Target 5 3 Max Length 7 THEORY: Computer-aided engineering also known as CAE is the broad usage of computer software to aid in engineering analysis tasks. It includes finite element…

AIM: Mesh the following component and assign thickness: Target Element Length = 4mm S.N Quality Criteria  Value  1 Aspect Ratio  5 2 Skewness 45 3 Warping 15 4 Taper      0.5 5 Min. Length 2mm 6 Max. Length 6mm 7 Min angle Quad 45 8 Max angle Quad 135 9 Min angle Tria 20 10 Max angle Tria…

 AIM: To mesh the given component according to the below defined quality criteria INTRODUCTION: The suspension is the system of tires, tire air, springs, shock absorbers, and linkages that connects a vehicle to its wheels and allows relative motion between the two. Suspension systems must support both…

AIM: To mesh the given model of IP SUBSTRATE within the given quality criteria 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 7 Jacobian  0.7 8 Minimum Quad Angle  45 9 Maximum Quad…

AIM: Our aim is to perform static simulation over three beams and select best viable product THEORY: A beam is a structural component. It normally resists all the loads applied laterally to its axis. The only mode by which it can be deflected is Bending.Bending is the behavious of the element when an exernal load is applied…

AIM: To morph the given component using various ANSA morphing techniques THEORY: ANSA encompasses a full-fledged Morphing menu which is completely integrated with ANSA’s interface and doesn’t require any additional module installations or licenses. The functions of the Morphing menu can be used to efficiently…

AIM: To assign the necessary connections of the rear door model to be simulated for NASTRAN-NVH analysis PROCEDURE: Open the file under Nastran input file menu          Analyze the model and evaluate the necessary connections to be performed on the model. Also we check for any deformation/cracks…

AIM: Mesh the given component with tetra elements and fulfill the required quality criteria S.No  Quality Criteria  Value  1 Target/Average length   3 2 Minimum Length  1 3 Maximum Length  5 4 Tetcolapse  0.2   THEORY: Generally, 3d meshing is performed whenever the thickness…

AIM: To do a geometrical cleanup and mesh the given rearview mirror within the following criteria using 3d mesh S.No    Quality Criteria                  Value  1          Target/Average…

AIM: To mesh the given car hood model with the required quality criteria S.No  Quality Criteria  Value  1 Target/Average length   5 2 Minimum Length  2 3 Maximum Length  7 4 Aspect  3 5 Warpage 15 6 Skewness 45 7 Jacobian  0.7 8 Minimum Quad Angle  45 9 Maximum Quad Angle …

AIM: To mesh the given component according to the below quality criteria Target Element Length = 5mm S.N Quality Criteria  Value  1 Aspect Ratio  5 2 Skewness 45 3 Warping 15 4 Taper      0.5 5 Min. Length 2mm 6 Max. Length 8mm 7 Min angle Quad 45 8 Max angle Quad 135 9 Min angle Tria 20 10…

AIM: To create connector and Attach the various parts of the given model  1. Right_Rail_2 & Front_truss_1:- Seam-Quad(angled+capped+L) 2. Left_Rail_2 & Front_truss_1:- Quad elements 3. Front_truss_2, Front_truss_1 & Right_Rail_1:- Spot weld with 3 Layers and 5…

AIM:  To 3d tetramesh the given component according to the following criteria Mesh the components with an element size of 6 and maintain a tet-collapse of 0.15  THEORY: Generally, 3d meshing is performed whenever the thickness of the components goes beyond 6mm or below 1/20 thickness area ratio.  Few…

AIM:  To 3d mesh the given component according to the following criteria Elements sizes: Min- 2mm, Target- 5mm,Max- 7mm  Tet collapse: 0.15   THEORY: Generally, 3d meshing is performed whenever the thickness of the components goes beyond 6mm or below 1/20 thickness area ratio.  Few examples are…

AIM: Mesh the component given below and assign thickness: Target Element Length = 5mm S.N Quality Criteria  Value  1 Aspect Ratio  5 2 Skewness 45 3 Warping 15 4 Taper      0.5 5 Min. Length 3.5 mm 6 Max. Length 7mm 7 Min angle Quad 45 8 Max angle Quad 135 9 Min angle Tria 30 10 Max angle…

AIM: Mesh the component given below and assign thickness: Target Element Length = 5mm S.N Quality Criteria  Value  1 Aspect Ratio  5 2 Skewness 45 3 Warping 15 4 Taper      0.5 5 Min. Length 2mm 6 Max. Length 8mm 7 Min angle Quad 45 8 Max angle Quad 135 9 Min angle Tria 20 10 Max angle Tria…