Sebastian George

### Projects

Simulation of kinematics of simple 2R robotic arm manipulator in MATLAB

AIM To simulate the movement of a simple 2R kinematic arm manipulator in MATLAB THEORY To simulate the movement of the robotic arm, there should be an equation which will give the position of the arm with respect to the angle made with the base. The end point of the first link can be found out using the following equation;…

Study of suspension system comparison and plotting of a function using Simulink blocks

AIM To compare the perfomances of three different suspension systems and plot a function using Simulink blocks THEORY Suspension system consists of shock absorbers, dampers, springs and tires and it is used to increase the quality of driving an automobile. In this study, a shock absorber, a non-linear spring and damper…

Performing a curvefit on a dataset using MATLAB

AIM To perform a curvefit on a dataset with an R square value greater than .95 using MATLAB THEORY Curvefits are used to find the relation between x and y variables in a given set of data and to predict the y values outside the dataset. In this project, the curvefit performed is a polynomial curvefit. The goodness of a…

Calculation of global maxima of stalagmite function using MATLAB

AIM To calculate the global maxima of stalagmite function using genetic algorithm and do a study on genetic algorithm THEORY Genetic algorithm is an algorithm used to find out the optimization values of a function based on the theory of evolution by Charles Darwin. Numbers are represented as 'genes' in a 'chromosome' which…

Simulation of transient behaviour of a simple pendulum and animating its motion using MATLAB

AIM To solve the differential equation of SHM of a pendulum and create an animation using MATLAB THEORY The behaviour of simple harmonic motion of a pendulum can be understood from its characteristic differential equation which is shown below;                      …

Study of Induction motor characteristics

Q1. a) The speed relation between the driving and driven shafts of mechanical clutch is similar to the relation between motor speed and synchronous speed of an induction motor. Consider the driving shaft of a mechanical clutch with torque T and speed W1. The torque of the driven shaft be T and speed W2 respectively. The…

Parsing NASA thermodynamic data using MATLAB

AIM To parse a datafile in MATLAB and calculate the specific heat, enthalpy and entropy and molecular weight of the 53 different species included in the datafile THEORY File parsing means extracting relevant data from a dataset and using that data for other applications. The file that is being parsed in this project includes…

Plotting otto cycle and finding out thermal efficiency using MATLAB

AIM To plot otto cycle and calculate the thermal efficiency of the cycle using MATLAB THEORY The otto cycle is a thermodynamic cycle which describes the changes happening to state variables such as pressure, volume and temperature inside an internal combustion engine. Given here is a plot of otto cycle which has specific…

Determination of drag force on a bicycle using MATLAB

OBJECTIVES To calculate the value of drag force using MATLAB Plot velocity vs drag force Plot drag coefficient vs drag force THEORY A person riding a bicycle would experience a drag force and it can be found out using the following formula; df=(1/2)*d*v^2*A*cd where df= drag force experienced by the rider and bicycle,…

Week-9 Challenge: Induction Motor-2

1. Given below is the equivalent circuit of an induction motor with stator and rotor circuits separated. The frequency of current in both circuits are different. Suppose the frequency of the rotor circuit is f2 and frequency of stator circuit f1 and let the slip value be s. f2=s*f1 This means the frequency of the rotor…

Calculation of brake energy of US06 drive cycle using MATLAB

1. The MATLAB code for calculating brake energy of US06 drivecycle is given below: clear all close all clc f1=fopen('US06 drivecycle.txt','r'); mass=1770; %mass of the vehicle in kilograms for i=1:2 %skipping comments comments=fgetl(f1); end for i=1:601 %storing time and velocity values into arrays from the text file B{1,i}=fgetl(f1);…

Simulating frontal crash of Dodge Neon BIW using Radioss

Objectives To model frontal crash of BIW with given conditions and request the given output requests and analyse the results. Input parameters 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.…

Simulating side crash of Dodge Neon BIW using Radioss

Objective To simulate side crash of Dodge neon BIW according to the given parameters and analyse the results. Input parameters 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 penetration and intersections. Create rigid wall…

Meshing hood model assembly using HyperMesh

Objective To mesh the given hood model with the given quality criteria, target element length=5mm and assign thickness. Procedure The cad model of the hood model was loaded into hypermesh. Given below is the parent geometry. Midsurface was generated for different components and geometry was cleaned up. The midsurface of…

Week 8-Challenge

Aim To create tetramesh for cover and hub, crank housing and suspension assemblies according to the given quality criteria. For cover and hub, the target size, minimum size and maximum size of the element is 5mm, 2mm and 7mm respectively.  For crank housing and suspension assembly, target size is 6mm. Tet collapse is set…

Week 9-Challenge

Aim To mesh the given component with a target size of 5mm and create connectors and attach the various parts of the model according to the conditions given below. 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,…

Week 12:Project-1-Meshing of Door Inner Panel Challenge

Aim To extract midsurface of inner panel of door and mesh it according to the quality criteria given below.  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…

Week 12:Project 2-Meshing of Rear Wheel Holder challenge

Aim To generate midsurface for rear wheel holder and the mesh the component according to the given quality criteria given below. 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…

Week 8 - Challenge 1 - Draft Analysis on a Fan Cover

Aim To create the tooling axis for the given class A surface and perform draft analysis for the tooling axis. Procedure The class A surface was checked for open surfaces using Join > check connectivity and no issues with connectivity were found. The screenshot is given below. The tooling axis was created using bisecting…

### Course Certificates

MATLAB for Mechanical Engineers

Completion Certificate UID : lg9ed760jmfpz2vu

Introduction to Physical Modeling using Simscape

Completion Certificate UID : 4p2kwox0m15rba3d

Introduction to Hybrid Electric Vehicle using MATLAB and Simulink

Completion Certificate UID : 1yszp29hobl7gifn

Crashworthiness Analysis using HyperMesh and Radioss

Completion Certificate UID : tfzp9s05vw4qug2e

HyperMesh for FEA Plastic and Sheet Metal Applications

Completion Certificate UID : tpxam7zrs8och962

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