CFD Meshing of BMW M6

 OBJECTIVE:- To perform Head Impact Simulation and calculate the HIC value in Pre-Post.   PROCEDURE:- Case 1:- Simple Head Impact against Rigid Wall. A planar Rigid wall was created normal to Z-axis towards which the Head is going to impact. A *Section_Shell was created with Element Formulation 2 and Thickness 3…

OBJECTIVE:- To perform a uniaxial tensile stress on a block of Solid (10mm x 10mm x 10mm) using Ogden Material for different elemental formulations and compare their results.   PROCEDURE:- Modelling:- A cube with the dimension 10mm x 10mm x 10mm was created by going to Mesh Panel>Shaper Mesher>Apply>Done.…

OBJECTIVE:- To model spotwelds for the given assembly of parts and run a crash test.   PROCESS:- Given:- Material of the crash box - Mild Steel. System Unit - gm/mm/ms.   CASE 1: Beam spotweld used. Material and Section was taken as -  Velocity:- Using the conversion method,…

OBJECTIVE:-  To perform a parametric study using 3 different values of thickness for the car body.   Geometry: Parametric was switched on for the Thickness of the Car Body, with first value as 0.3 mm.   Materials: Car Body has been assigned with Stainless Steel NL and the Wall is assigned with the default…

OBJECTIVE:- To perform an Explicit Analysis of bullet penetrating a bucket by using 3 different kinds of non-linear materials.   Geometry:   Materials: Bullet is kept as Rigid with TANTALUM as material and the Bucket is assigned with Copper Alloy NL, Aluminium Alloy NL and Stainless Steel NL material, for 3 different…

OBJECTIVE:- To perform an Explicit dynamics simulation of the given body.   Geometry:   Materials: Cutting tool is kept as Rigid with Structural Steel as material and the Workpiece is assigned with Steel 1006 material.       Connections: In Explicit Analysis, the model mainly depends mainly on…

OBJECTIVE:- To perform Tension and Torsion test on a specimen with displacement of 18 mm and 1200 degree respectively.   Geometry:   Materials: Steel 1006 was assigned to the model.   Mesh: For Tensile test: Two co-ordinate system were created as shown. Mesh type as trahedrons method was used. The selected…

OBJECTIVE:- To perform Transient Structural Analysis of a Worm gear assembly. Geometry:   Contacts: Frictionless contact is created between Worm and Gear.   Joints:        Body-Ground Revolute Joint is created for both Worm and Gear.   Mesh: Mesh Size of 1 mm was used for the meshing…

OBJECTIVE:- To perform Transient Analysis on a Double Universal joint with a spring by using three different materials.   Geometry:- Materials used:- Structural steel Stainless steel Titanium alloy Connections:- Joints:- Fixing bottom face of spring: Revolute joints assigned on both the shafts: 8 Body-Body Revolute…

OBJECTIVE:- To perform a transient analysis on a piston and cam mechanism model that has been provided.   PROCEDURE:- Geometry:   Mesh:- The model was given the default mesh, only the contact faces were meshed with 3mm size.   Boundary Conditions:- The simulation is made to run for 9 steps with Larger Deflection…

OBJECTIVE:- To simulate the bending of iPhone as per the given cases.   SETUP:- Under Engineering Data some Field Variables were added and the SN Curve was defined.       PROCEDURE:- CASE 1:- Geometry: Contacts: The behaviour of the contact was set to Frictionless and Bonded for Display to Frame contact.…

OBJECTIVE:- To perform an analysis of a sphere pressing on a plate and experiencing plastic deformation on the plate.   PROCEDURE:- Geometry: Contacts: Frictional Co-efficient of 0.74 was assigned to the contacts with the formulation as Program Controlled. Mesh:- The model was given the default mesh, only the face…

OBJECTIVE:- To perform an analysis to simulate the bending of a wire using 3 different types of materials for the wire.   PROCEDURE:- Geometry: Contacts:     Frictional Co-efficient of 0.2 was assigned to the contacts with the formulation as Augmented Lagrange, Normal Stiffness as factor of 0.1 where Stiffness…

OBJECTIVE:- To simulate the rolling operation on a workpiece made of copper.   PROCEDURE:- The model was imported into the SpaceClaim to make some changes such as increasing its length by 60 mm and decreasing its length on the both sides by 8 mm. Geometry: The workpiece was assigned with the Copper Alloy NL material.…

OBJECTIVE:- To simulate three different types of welding using three different weld materials.   Geometry:-   Contacts:- 5 contacts was assigned a Frictional bonding with the co-efficient of 0.2.   Mesh:- Body Sizing was used with a mesh size of 7 mm on both the plates in order to get more appropriate results.…

OBJECTIVE:- To perform static structural analysis on the Railwheel and Track setup by assigning different loads on it. To implement a user defined result and compare the Total Deformation from this result with that of the inbuilt result by ANSYS.   Geometry:- Contacts:-       Joints:- Both the faces…

Grid Dependency Test:- Grid convergence is the term used to describe the improvement of results by using successively smaller cell sizes for the calculations. A calculation should approach the correct answer as the mesh becomes finer, hence the term grid convergence. A mesh convergence test should mean computing the…

OBJECTIVE:- To compare the results obtained by using 3 different materials for gears and write a detailed report explaining the results obtained.   Cases:- Using Cast Iron(ductile) as a material Using Cast Steel as material Using Cast Bronze as material We had to Setup the model first before proceeding to the Cases.…

OBJECTIVE:- To perform stress concentration with single and multiple holes. Comparing the deformation and maximum stress developed on the structural steel model for both the cases. To understand and point out the best design on the basis of Analysis and Manufacturing standpoint.   Case 1:- Stress Concentration having…

OBJECTIVE:- To simulate and analyze the neon side crash model.   Following were the checks we needed to work on:-   Check the unit system and either follow [Mg mm s] or [Kg mm ms]: The neon_side_reduced_0000.rad file was opened using Notepad++ and was confirmed that the unit system which the model followed was…

OBJECTIVE:- To simulate and analyze the neon front crash model.   Following were the checks we needed to work on:-   Check the unit system and either follow [Mg mm s] or [Kg mm ms]: The neon.frontal.0000.rad file was opened using Notepad++ and was confirmed that the unit system which the model followed was [Kg…

OBJECTIVE:- To compare the base setup simulation results and different kinematic condition simulation results.   QUESTIONS:- Create the mesh for bumper assembly, mesh size should be 6mm. 1. Run the crash tube model as it is. 2. Change the Inacti=6 and run. 3. Create the type 11 contact and run. 4. Remove both notches…

OBJECTIVE:- To compare and analyze the 7 cases of Rupture Plate by applying different materials and properties.   QUESTIONS:- 7 different cases will be provided to us which has to be taken into account and then compared. Following are the list of points which needs to be followed i this report: Slides:-    …

OBJECTIVE:- Comparing the simulation results of the base setup and improved shell element properties.   THEORY:- Base Setup- Initially the simulation will be run with the default properties and later it will be run on the set of properties given to us and then comparing the two simulations on different aspects.  …

OBJECTIVE:- To solve the questions given. To perform 2D and 3D meshing for the Housing and Arm Bracket. Questions were as follows:- SOLUTIONS:- 1. From the file FIRST_RUN_0000.rad we can easily denote that the Material is Plastic. Density is 0.0078 and Young Modulus is 21000. The units which need to be used…

OBJECTIVE:- To perform mesh cleanup on the given 2D shell components. GIVEN:- Target element length = 5mm Minimum length = 3.5mm Maximum length = 7mm PROCEDURE:- The component was imported into the software one at a time. The cleanup of the geometry was done. It was made sure that there were no free edges. Fillet, smaller…

Rear Wheel and Front Fork

Problem:- Minimize the function `5−(x−2)^2−2*(y−1)^2` subject to `x+4y-3=0`. Solution:- `f` = `5 − ( x − 2 )^2 − 2 * ( y − 1 )^2` `g` = `x+4y-3` According to Lagrange Multipliers, `L = f + lamda*g`   So, `L = 5- (x-2)^2 - 2*(y-1)^2 + lamda*(x+4y-3)` `(del…

MESHING OF AN INTERIOR PLASTIC COMPONENT OF A SIDE DOOR   OBJECTIVE:- To clean the topo errors of the model. To perform mid surface extraction in 2 ways:- Automatic extraction and manual method. To compare the the 2 methods and state the most favourable method.   PROCEDURE:- In case of Automatic extraction method,…

YACHT:- A yacht is any sail or power vessel used for pleasure, cruising or racing.  There are different types of yatch depending on the purpose they serve. Some of them are known as Cruising Yacht, Racing Yacht, Luxury Sailing Yacht and many more.   OBJECTIVE:- To model different parts of…

PYTHON PROGRAM FOR CALCULATING THE EFFICIENCY OF OTTO CYCLE AND PLOTTING OF PV DIAGRAM   OBJECTIVE:- To plot a PV Diagram of Otto Cycle. To calculate the efficiency of Otto Cycle. TERMS & PHASES:- OTTO CYCLE:- The otto cycle is a thermodynamic process of the engine which requires in 4 strokes of the piston, namely…

OBJECTIVE:- Write a program in python to simulate the motion of the pendulum. To show the animated pendulum. THEORY:- In the Equation, `(d^2theta)/(dt^2)+b/m*(d theta)/dt+g/l*sin theta=0`, where `b` = damping co-efficient= `0.05` `m` = mass = `1 kg` `g` = gravity = `9.81 m/s^2` `l` = Length = `1 m`  …

The following is attached of meshing of Cylinder. I started by changing from ENT to PID, followed by setting PID on the faces. Then under Mesh module, under perimeter I changed the length of the cylinder to 1 unit, which was 20 units by default. After that i used the option Spot Mesh, under Mesh Generation, of which the…

OBJECTIVE:- To perform Batch-meshing on the given components with the given criteria and to assign the non-linear material property Steel to them. GIVEN:- PROCEDURE:- The hood component was imported into the software. The component was subdivided into 4 parts, and the cleanup and meshing was done on them individually.…

The following attachment consist of Chains, Pedal and Oil Tank.

The submission is photorealistic rendering

OBJECTIVE:- To simulate a crash test for a crash box for which a mesh file was provided. Theory:- A crash box is a highly energy absorbing structure that crashes on application of loads and reduces impact on other components nearby.   PROCESS:- Given:- Material of the crash box - Mild Steel. System Unit - gm/mm/ms.…

OBJECTIVE:- To model different parts of the Chopper. To perform an assembly and addition of decals on the specific parts of the chopper. To perform the photorealistic rendering using Solidworks Visualize.   Parts to be modelled:- Chains Chassis Engine Front Fender Rear Fender Front Fork Front Wheel Rear Wheel Gas…

Python program for Flow Over Bicycle   OBJECTIVE: To write a program to plot a graph of Velocity vs Drag Force To write a program to plot a graph of Drag Co-efficient vs Drag Force PROCEDURE: We learnt the formula for Drag Force to be as,          Fd = Cd.A.(p.V^2/2) where, Fd = Drag Force,…

CFD MESHING OF BMW M6   OBJECTIVE:- To get rid of all the topo and geometrical errors. To surface mesh the entire model as per given length. To get rid of violating elements of the meshed model. To make a wind tunnel with respect to the model.   PROCEDURE:- The model was first changed to PID mode from ENT mode.…

OBJECTIVE: Create 1D elements on the given component with given cross-section and DOF. Given:- Rod element:- Only translational DOF and RBE2 link Cross-Section: BOX- Dimension a= 12 mm; Dimension b=10 mm; Thickness t= 0.75 mm Beam element:- With all DOF and RBE3 link Cross-Section: I Section- Dimension a= 8 mm;…

OBJECTIVE:- To create 3D meshes for the models provided. GIVEN:- Element sizes: Min- 2mm, traget- 5mm, Max- 7mm, Tet collapse- 0.15 PROCEDURE:- The crank housing model was imported in the software. First of all, the solid was deleted from the part. The cleanup of the geometry was done. It was made sure that there were…

OBJECTIVE:- Conducting a drop test simulation against a Rigid Ground.   Setup:- System Unit - gm/mm/ms Material - Cellphone- 001 Elastic, RO- 0.001582 gm/`mm^3`, E- 30000MPa, PR- 0.3. Ground- 020 Rigid, RO- 0.00783 gm/`mm^3`, E- 200000MPa, PR- 0.3. Boundary condition for Ground- CMO- 1, CON1- 7 (constrained x, y,…

OBJECTIVE:- Write a program to create a data visualizer tool. CODING:- Below is the code which I wrote to pharse information from the converge output file and used the very information to perform some calculation. import math import matplotlib.pyplot as plt import numpy as np # Extracting the values Crank = [] Pressure…

Volumetric Meshing of Turbocharger   OBJECTIVE: To get rid of all the geometrical and Topo Errors. To surface mesh the different parts of the model according to their given length. To volumetric mesh the given Model.   PROCEDURE: By default, we are given with a model which contains many errors like glitches,…

1. The definition of popt and pcov: popt:- It is the optimal value of the parameters so that the sum of the square residuals is minimized.  pcov:- The pcov variable contains the covariance matrix, which indicates the uncertainties and correlations between parameters. This is mostly useful when the data has uncertainties.…

EXPLICIT AND IMPLICIT ANALYSIS   What is Finite Element Method (FEM)? FEM is a numerical method to solve partial differential equation. In its essence, it has nothing to do with mechanical engineering or structural engineering. FEM is used to simulate naturally or artificially occurring phenomenons. This numerical…

The Challenge is on the gas tank and the assemble chopper

The submission is on Chassis and Engine

 OBJECTIVE:- To prepare a chart of the consistency of units and show the conversion into gm/mm/ms unit system. Mass Length Time Force Stress Energy Density Young’s Modulus 35mph 56.3kph Velocity Gravity kg cm ms 1e+4 N 1e2 Pa 1e-4 J 1e-6 2.1e+3 1.56 9.81e-4 kg cm s 1e-2 N 1e2 Pa 1e-4 J 1e-6 2.1e+9 1560…

OBJECTIVE:- Using the relaxation factor=1, to find the cushion pressure for every thickness of ice field. To find the optimum relaxation factor, at h=0.6. To explain the results with respect to the appropriate relaxation factor. THEORY:- The Newton-Raphson method (also known as Newton\'s method) is a way…

OBJECTIVE:- To create connectors and attach the various parts of the given model. PROCEDURE:- The model was imported into the software and was meshed under 2D auto-mesh option. The following are supposed to be connected in between the two components by using connectors. Right_Rail_2 & Front_truss_1:- Seam-Quad(angled+capped+L)…

2R ROBOTIC ARM SIMULATOR   OBJECTIVE: Write a program to simulate forward kinematics of a 2R Robotic Arm. CODE: Following is the code which I wrote down for simulating Forward Kinematics of a 2R Robotic Arm. """ Code by- Rishav Raj Sinha Objective- WAP to simulate forward kinematics of a 2R Robotic Arm """ import…

MESHING HOOD FOR STRUCTURAL ANALYSIS   OBJECTIVE:- To get rid of errors on Inner and Outer Panels of the hood. To perform a mid-surface extraction of the both. To build a Hem related to both panels. To mesh the model.   PROCEDURE:- The model was opened which was in .stp format which was automatically converted…

OBJECTIVE:- To mesh the given component according to the quality criterias. GIVEN:- Target element length = 5mm PROCEDURE:- The hood component was imported into the software. The component was subdivided into 5 parts, and the cleanup and meshing was done on them individually. Different colours were assigned to different…