Curve fitting and polynomial interpolation using matlab

Simulation of Closed-loop BMS  The BMS model consists of a BMS ECU (electrical control unit) and a plant. The control unit with its various monitoring and control algorithms is connected to a block with the representation of the battery pack and associated circuitry and peripherals State Machine in the BMS ECU defines…

Introduction Li-ion is a low-maintenance battery, an advantage that most other chemistries cannot claim. The battery has no memory and does not need exercising (deliberate full discharge) to keep it in good shape. Self-discharge is less than half that of nickel-based systems and this helps the fuel gauge applications.…

1.For a defined driving cycle, calculate the energy required for braking. The braking performance is one of the most important concerns in vehicle safety. In urban area driving, a significant amount of energy is consumed in braking. Electrification of vehicles makes it feasible to recover some of the energy lost in braking.…

  MATERIAL MODELING FROM RAW DATA: INTRODUCTION: Material modeling is a widely undertaken process in industries. This process involves testing of new material or alloy and modeling this material through the extracted test data and validating it with the test data and thus can be used in later stages in simulation.…

OBJECTIVE: To calculate the Mooney Rivlin and Ogden material constants and compare the both using stress-strain data from a dogbone specimen tensile test with 100 percent strain. The given material data is the engineering stress-strain in MPa/(mm/mm). The comparison should be shown from the d3hsp file and using simulation.…

  HEAD IMPACT SIMULATION INTRODUCTION: Pedestrian safety and protection analysis is part of a Crash analysis performed in automotive industries. In this Vehicle safety engineering field, the engineers are required to design the automobile especially the front half i.e the bonnet and car hood in such a way that under…

  STRETCH RATIO COMPARISON BY DIFFERENT ELFORM: OBJECTIVE: The objective of this project is to create a cube of dimension 10x10x10 (mm) modeled using a solid element and Ogden Rubber, a hyperelastic material. Upon this model, a tensile force is applied as a loading condition while the other end is constrained in space…

  MASS SCALING: OBJECTIVE: To reduce this time consumed by the solver processors by implementing the concept of MASS SCALING. Using this criterion, elements that are either beyond or far lower from the nominal time step is either increased/decreased to meet this criterion. Hence by mass scaling the model, we can establish…

  OBJECTIVE: The objective of this project is to model spot welds to join two sheet metal components using beam elements on the first case and solid elements on the second and compare the  axial and shear force experienced by the spot welds in both cases. LS-DYNA SETUP : CASE-1: BEAM SPOTWELD SPOTWELD ELEMENT GENERATION:…

  1.Run MATLAB demo ‘Speed control of a DC motor using BJT H-bridge’. Modify the model such that the armature current doesn’t shoot up when the motor changes direction from forward to reverse.  BJT H-bridge: The Bipolar Junction Transistor (BJT) when used for power switching applications,…

OBJECTIVE: Perform impact analysis on a crush tube to understand how it works and how much the thickness of the tube affects the results.   DETAILED PROBLEM STATEMENT: The crash box should crash into a rigid wall  The material for the crash box is steel (nonlinear ). The thickness of the crash box is case-a:1.2mm…

OBJECTIVE to create a drop test simulation of phone with all necessary keywords in ls dyna.   PROCEDURE   1. open the given drop_test_onlymesh.k file in ls prepost using open-> keyword file.   The first step is to create a mesh and define node points and the given file has these elements but it doesn't…

 Explicit and Implicit methods:   Explicit and implicit methods are approaches used in numerical analysis for obtaining numerical approximations to the solutions of time-dependent ordinary and partial differential equations, as is required in computer simulation of physical processes. Explicit methods calculate…

1.   Which types of power converter circuits are employed in electric and hybrid electric vehicle?      The main components of an Electric Vehicle are DC-AC inverter, DC-DC converter, battery, and electric motor. There are two major power electronic units in the general configuration …

Objective: 1.to convert the Value of the following measurements to gm/mm/ms unit system MASS                            1kgLENGTH                         1mTIME       …

1.What is the difference between the mapped and dynamic model of engine, motor, and generator? How can you change the model type?   MAPPED models: Mapped models are used when the behavior of a particular model is not of our interest and can be modeled with predefined values in the form of lookup tables. eg: mapped…

Objective: To create a unstructures volume mesh(tetra) for the intake manifold   1.Importing the CAD model:file->open   2.geometry errors checking and cleanup:   used topo option and removed needle faces:   3.preparation of geometry for meshing:               4.2D-…

Objective:  To create unstructured mesh for the rearview mirror assembly.   1. Importing cad file   2. performing geometry cleanup, create a plane cut and remove symmetry surfaces.  and also orient the faces   3.all parts  are meshed as seperate volumes with differernt PID and material  …

Objective:  To create mid surface mesh for the given sheetmetal and  plastic component   Part-1:automotive plastic component- switch panel geometry:orientation and geometry errors are cleared   midsurface:midsurface is extracted manually using ofset, middle option nad srufaces are patched using extend…

Objective:  To create mid surface mesh for the given sheetmetal and  plastic component   Part-1:automotive plastic component- switch panel geometry:orientation and geometry errors are cleared   midsurface:midsurface is extracted manually using ofset, middle option nad srufaces are patched using extend…

Objective: Extract the midsurface for the given sheet metal component(shown below)  and used meshing tools in ansa to create mid-mesh with appropriate quality criteria     Step-1: geometry clean up needle faces, single cons, triple cons, collapsed cons are cleared using autofix in geometry checks dialog…

Objective: Extract the midsurface for the given sheet metal component(shown below)  and used meshing tools in ansa to create mid-mesh with appropriate quality criteria     Step-1: geometry clean up needle faces, single cons, triple cons, collapsed cons are cleared using autofix in geometry checks dialog…

Objective:  To create mid surface mesh for the component shown below without using auto midsurface extraction tool in ANSA and assign the appropriate thickness using properties.     Step-1: geometry clean up needle faces, single cons, triple cons, collapsed cons are cleared using autofix in geometry checks…

Implement DC machine torque speed characteristics equations in MATLAB script file. It asks user to input data and plots speed (RPM) versus torque (Nm). Submit the .m file for evaluation and attach the screenshots of all the required plots How can you distinguish between power cables and signal cables in wiring of an electric…

Objective Use integrator to find the work done by the cutting tool Use array dat from workspace to evaluate a function and store the results to a file using To file block Study the effect of changing the values of variables in command window using the Mass-Spring-Damper in Simulink and Simscape example m model  …

Flow over bicycle 1.Objective:    To create a matlab program to calculate drag force against a cyclist under the effects of Velocity,Drag coefficient,Frontal Area,Density of air.    And study the effect of   Velocity vs Drag force.  Drag Co-efficient vs Drag force. 2.Introduction: Drag…

Challenge-2:   1.   What is the ratio of hill climbing power required by fully loaded tata ultra truck to the half loaded one?    specs of TATA ULTRA 1012 trucks: since gradeability is 33% inclination angle is 14.85 degree( `tan^-1(0.33)` inclination angle=0.2592 radians ( 180 degree = pi…

Objective:   Use Matlab to simulate the forward kinematics of full span and limited span 2R Robotic Arm Methodology: Kinematics is the study of motion of the objects without reference to the force causing the motion.  Robotic arm is modelled in Matlab with (x0,x0) as ground or fixed point and (x1,y1)…

Challenge-1: 1.   What should be the maximum speed of the motor used in an electric scooter capable to run at 90 kmph, if the  fixed gear ratio is 7 and tire size is 90/100 R10 53J?  Recalculate the same value if tire code is 90/90 R18 51P? How to read a tire?           Using…

1.Implement DC machine torque speed characteristics equations in MATLAB script file. It asks user to input data and plots speed (RPM) versus torque (Nm). Submit the .m file for evaluation and attach the screenshots of all the required plots   ----------------------------------------------------------------------------------------------------------------…

AIM To create a parser for  the NASA thermodynamic data provided and create plots for all species using matlab To display T vs Cp, T vs Enthalpy, T vs Entropy plots and display molecular weight for the required species  Given file : https://drive.google.com/file/d/1AikCHDlz9s_fu8whE81qee_GD4AyYpCP/view?usp=sharing…

1.Objective:       Simulating the transient behaviour of a pendulum and animate its motion by solving the second order ODE governing its motion.   2.Pendulum:     Pendulums have many applications and were utilized often before the digital age.They are used in clocks and metronomes due to the…

1.What is the difference between mapped and dynamic model of engine, motor and generator? How can you change model type?    --------------------------------------------------------------------------------------------------------- 2.How does the model calculate miles per gallon? Which factors are considered to…

Objective 1. To create a simulink model of solenid operated doorbell 2. Automatic DC motor  fan operated  based on room temperature using thermistor   1.SOLENOID OPERATED DOORBELL   schematic diagrtam of the doorbell                        …

AIM   To plot the stalagmite mathematical function and use genetic algorithm solver in MATLAB to find the global maxima    GENETIC ALGORITHM   A genetic algorithm (GA) is a metaheuristic inspired by the process of natural selection that belongs to the larger class of evolutionary algorithms (EA). Genetic…

                                                                  Curve Fitting   Objective:    Study of need for curve fitting and types of…

Objective: To plot the P-V diagrom of a typical otto cycle and find the efficieny using MATLAB   Otto cycle: Formula: Ideal gas equation and adiabatic process equation sare used to find pressure and volume at differrent stages of operation,       Below formula is used to find the cylinder volume at…

1.Plot a function  yx=(x-1)*(x-3)^2*(x-9)^2 using basic Simulink blocks.    simulink model:simulink model Basic blocks used to create the function   Block settings: 1.Ramp block: set the slope to 1 and start time and initial value to 0. 2.Scope block: open scope block File-> set no of input…

Objective: Implement control logic of a “washing machine” using Stateflow Make a Simulink chart for the “Gear shift” logic   1.IMPLEMENT CONTROL LOGIC OF A WASHING MACHINE USING STATEFLOW   Input conditions: If the power supply is available, the system gets activated  If the Water…

Use ADVISOR tool and simulate following    1.   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.   run advisor.m file load Ev_defaults_in…