Curve fitting using MATLAB

Aim: To model the components of a IC engine piston assembly, assemble and perform motion analysis study on the assembly using SolidWorks Motion Analysis. Introduction: The Internal Combustion engine (ICE) is a heat engine in which the combustion of a fuel takes place inside the combustion chamber. The expansion of high…

Aim: To run flow analysis on a 3D model of a flow bench in order to obtain a plot of valve lift vs mass flow rate by: (a) Grid dependence test to find the best mesh size for simulation, (b) Parametric sweep to show the effect of valve lift on mass flow rate.   Introduction: An air flow bench is a device…

Aim: To model and simulate flow over NACA0017 Airfoil using SolidWorks for different angle of attacks and compare drag and lift forces.   Introduction: What is an Airfoil? An airfoil or aerofoil is the cross-sectional shape of a wing, blade (of a propeller, rotor, or turbine), or sail. The lift…

Aim: To run a baseline simulation for flow over a cylinder and calculate the Reynolds number. To increase the Reynolds number by a factor of 20%, 40%, and 100% then run the transient flow simulation.   Introduction: (a) Steady state flow and Transient flow: A flow that is not a function of time is called steady…

Aim: To model, assemble and perform Motion analysis on IC engine valve train assembly using SolidWorks and obtain: (1) Valve Lift (2) The contact force between: Cam and Push Rod Pushrod and Rocker Arm Rocker Arm and Valve And, to explain why the contact force between the Rocker arm and valve varies while measuring…

Aim: To perform Motion Analysis on a planetary gear using SolidWorks and discuss the results for the following three cases: S.No Input Output Fixed 1 Sun Gear Carrier Ring Gear 2 Ring Gear Carrier Sun Gear 3 Sun Gear Ring Gear Carrier   Introduction: A simple planetary gear set is made up of three main components:…

Aim: To perform Frequency analysis to find out the critical frequencies and mode shapes of a rotating shaft in Solidworks. Introduction: (1) Frequencies and mode shapes: Natural frequencies or eigenfrequencies are certain discrete frequencies at which a system is prone to vibrate.  Resonance is a phenomenon…

Aim: To perform a static analysis on two plates with holes and compare the results for stress, strain and displacement. Introduction: (1) Stress concentration: Source: https://en.wikipedia.org/wiki/Stress_concentration The stress and strain concentration locations are the critical structural details to determine the…

Aim: To perform a buckling analysis on a cyclonic separator stand for the following three cases: Without adding a stiffener By Adding a stiffener to find out the change in buckling factor of safety and Use Design Study to find out the optimum position for the stiffener with respect to buckling factor of safety.…

Aim: To parse the given data file and to automate the following tasks using Python: (1) Get column numbers as inputs from user and plot the two columns with labels and save the file by the column name (2) Calculate Area under P-V diagram, Power output and SFC of the engine using the given data file. (3) Check the compatibility…

Aim: To write programs in Python for Air Cushion vehicle using Newton Raphson method to: Find out the value of pressure for h = 0.6 ft. Find the optimal relaxation factor for this problem with the help of a suitable plot. Tabulate the results of p for h = [0.6,1.2,1.8,2.4,3,3.6,4.2] assuming a suitable relaxation factor.…

Aim: To simulate the motion of a simple pendulum and create an animation using MATLAB Introduction: (a) Motion of a simple pendulum: In Engineering, ODE is used to describe the transient behavior of a system. A simple example is a pendulum. A simple pendulum is a system consisting of a mass at one end of string while the…

Aim: To write programs in Python to calculate Drag force against a cyclist and to create the following plots: (1) Velocity vs Drag Force (2) Drag co-efficient vs Drag Force Introduction to Drag force: Drag is a force acting opposite to the relative motion of any object moving with respect to a surrounding fluid. It…

Aim: To simulate the forward kinematics of a 2R Robotic arm using MATLAB Introduction: A robotic arm is a mechanical arm that can be programmed to function similar to a human arm. The links of the manipulator are connected by joints which can allow either rotational motion or translational motion. Hence, the links form…

Aim: To write code for solving an ideal Otto cycle to obtain PV diagram and to calculate the thermal efficiency of the cycle using MATLAB Introduction: Air standard cycles are an approximate representation of the performance of Internal Combustion Engines. Otto cycle is one such air standard cycle that is used for petrol…

Aim: To write a program to fit a linear and cubic polynomial for the given Cp data and plot the linear and cubic fit curves using MATLAB. Introduction: Curve fitting is the process of constructing a curve or a mathematical function, that has the best fit to a series of data points which are subject to constraints. Curve…