Curve Fitting Using MATLAB

1. Run MATLAB demo ‘Speed control of a DC motor using BJT H-bridge’. Modify the model such that armature current doesn’t shoot up when motor changes direction from forward to reverse.  To open the model use the command 'power_Hbridge' in the command window of MATLAB. On opening the model we get this…

1.   Which types of power converter circuits are employed in electric and hybrid electric vehicle? Power converters are the power electronic devices used in the hybrid electric vehicles and battery electric vehicles to process and control the flow of electric energy by supplying voltages and currents in a form…

1. What is the difference between mapped and dynamic model of engine, motor and generator? How can you change model type?  Mapped Engine: Mapped Engine is the default settings in powertrain blockset. It is used to measure to measure performance parameters of the vehicle by using standard lookup tables which are…

Using the ADVISOR Tool simulate for following three conditions: CASE I:  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. In…

AIM:  1. To make a gear shift logic using Simulink Chart. 2. Implement a control logic for washing machine using Stateflow. GEAR SHIFT LOGIC USING SIMULINK CHART The input to the chart is given by a slider gain. The speed can be varied from 0 to 100 kmph.                  …

AIM: To make a Simulink model of doorbell using solenoid block and to make a Simulink model of a thermistor to sense the temperature of heater and turn on or turn off the fan as per the temperature conditions. DOORBELL USING SOLENOID: The Solenoid is a electromagnet. On passing current through the conducting wires…

AIM: Data analysis using Python OBJECTIVES:  1. Extract information the user requires and save the same as an image. 2. Display Power, work and bsfc. 3. Check whether the input file is correct or not. Compatibility Check: First the program accepts the file, then it will check whether the file is of correct…

AIM: Curve fitting using Python. OBJECTIVES:  1. Code to fit a linear and cubic polynomial for fitting Cp data. 2. Comparing the the fit of linear and cubic polynomial. 3. About popt, pcov, np.array(temperature) and *popt. PYTHON CODE FOR LINEAR POLYNOMIAL: #Several libraries are imported import math import numpy…

AIM: WAP to simulate the transient behaviour of a simple pendulum and to create an animation of it's motion. OBJECTIVE:  1. Create an animation of the pendulum motion 2. Simulate the transient behaviour of a simple pendulum GOVERNING EQUATION: Ordinary differential equation for oscillating motion of pendulum…

AIM: To find the drag force experienced by a cyclist. Plot Velocity vs Drag force graph and Drag coeffecient vs Drag force graph. OBJECTIVE: To do a study of drag force on a cyclist using Python. KEYWORDS:Velocity, drag coeffecient, drag force and air density. INTRODUCTION: "Aerodynamics" is a part of fluid dynamics concerned…

AIM: WAP in Python to simulate forward kinematics of a 2R Robotic arm. INTRODUCTION: 2R Robotic Arm basically consists of a base, two arms and two rotational joints. These links will have motion in them when they are programmed. Now link 1 will make an angle `theta_1` with respect to base, similarly the link…

Aim: To write a code in Matlab to parse the NASA thermodynamic data file and then calculate the thermodynamic properties of various gas species. Objective: To read and extract the given THERMO.dat file containing NASA determined coefficient for various species. To write a function to calculate the specific heat, entropy…

AIM: WAP to simulate the transient behaviour of a simple pendulumand to create an animation of it\'s motion. OBJECTIVE:  1. Create an animation of the pendulum motion 2. Simulate the transient behaviour of a simple pendulum GOVERNING EQUATION: Ordinary differential equation for oscillating motion of pendulum…

AIM: WAP in MATLAB to optimise the stalagmite function and find the global maxima of the function. OBJECTIVES:  1. Write a MATLAB code to find the Global Maxima. 2. Explain the Genetic Algorithm and its syntax. INTRODUCTION: Genetic algorithms are an optimization technique used to optimize non-linear and non-differential…

AIM: WAP to fit a linear and cubic polynomial for the Cp data using MATLAB. OBJECTIVE:  To WAP to fit a linear and cubic polnomial for Cp data. To plot the linear and cubic fit curves along the raw data points. CURVE FITTING: By curve fitting, we can mathematically construct the functional relationship between…

AIM: WAP in MATLAB to simulate forward kinematics of a 2R Robotic arm. INTRODUCTION: 2R Robotic Arm basically consists of a base, two arms and two rotational joints. These links will have motion in them when they are programmed. Now link 1 will make an angle `theta_1` with respect to base, similarly the link 2 will…

AIM: Otto cycle P-V diagram plotting using MATLAB and estimation of the thermal efficiency. OBJECTIVES:  To calculate the different state variables of otto cycle To calculate thermal efficiency of otto cycle using MATLAB To WAP to plot the PV diagram of the otto cycle BASICS OF THERMODYNAMICS: Isentropic process…

AIM: To find the drag force experienced by a cyclist. Plot Velocity vs Drag force graph and Drag coeffecient vs Drag force graph. OBJECTIVE: To do a study of drag force on a cyclist using MATLAB. KEYWORDS:Velocity, drag coeffecient, drag force and air density. INTRODUCTION: "Aerodynamics" is a part of fluid dynamics concerned…