Week 3 - Solving second order ODEs

Aim : To implement control logic of a “washing machine” using Stateflow as per given sequence:  If the power supply is available, the system gets activated  If the Water supply is not available, stop the process & indicate through LED Soaking time should be 200s followed by Washing time of 100s.…

Aim : To  1. Make a Simulink model of Doorbell using solenoid block, where when the switch is closed the electromagnet receives electrical power from the battery and pulls the metal arm to hit the bell producing sound. Create a situation where the switch is closed for 2 seconds and then released.…

Aim : To 1.Write a function that extracts the 14 co-efficients and calculates the enthalpy, entropy and specific heats for all the species in the data file. 2.Calculate the molecular weight of each species and display it in the command window. 3.Plot the Cp, Enthalpy and Entropy for the local temperature range (low…

Aim : To Write a code in MATLAB to optimise the stalagmite function and find the global maxima of the function. Clearly expalin the concept of genetic algorithm in your own words and also explain the syntax for ga in MATLAB. Make sure that the code gives the same output, even if it is made to run several…

Aim : To 1. Write a program in Matlab\Octave that will simulate the pendulum motion, using the following        L=1 metre,        m=1 kg,        b=0.05.        g=9.81 m/s^2. 2. Simulate the motion between 0-20 sec, for angular displacement=0,angular…

Aim : To design a centrifugal pump and run an analysis on it to obtain a Performance diagram - the relationship between Pressure ratio and mass flow rate and explain your results. (Pressure ratio = Outlet total pressure/ Inlet total pressure) Theory : A centrifugal pump is a mechanical device designed to move a fluid…

Aim : To  Create a 3D model of a flow bench, run a flow analysis and obtain a plot of lift vs mass flow rate. Conduct a Grid dependence test at a particular valve lift and explain the results. To run a parametric sweep to show the effect of valve lift on mass flow rate, once the best grid has been decided.  …

Aim : To Model the flow over a NACA0017 airfoil For the angle of attacks 0,2,4,6,8,10 compare the lift and drag forces Theory : Airfoil is defined as the cross-section of a body that is placed in an airstream in order to generate useful aerodynamic force. Angle of attack is the angle between the oncoming air or relative…

Aim : To simulate the flow over a cylinder for the conditions shown in the video. Calculate the baseline case Reynolds number.  Re = rho*U_inlet*D/mu D = cylinder diameter mu = dynamic viscosity rho = density Run a baseline simulation and then calculate the Reynolds number. Then increase the Reynolds number by a factor…

Aim :  Run a pipe flow simulation with an inlet Reynolds number of 100,1000 and 10,000. For each of these cases do the following Place line probes at 95%, 90% and 85% of the pipe length. Compare the normalized velocity profile at each of these locations Normalize the velocity profile by the inlet velocity.  …

Aim : Model the parts and assemble them in SolidWorks.  Run the simulation using the below parameters   Sl.No CAM Lift (mm) Speed (RPM)  Material  1 3.5 1500 Cast Carbon Steel 2 6 1500 Cast Carbon Steel  Obtain the Valve Lift.  The contact force between  Cam and Push Rod Pushrod and Rocker…

Aim :  To create a model in Solidworks according to dimensions that you see fit and Conduct a frequency analysis and apply a bearing fixture on the stepped face of the rod at the two ends and perform the analysis. Find out 5 mode shapes and list the resonant frequencies. Modelling : The dimensions of the model…

Aim :  Model all the parts and then assemble them in SolidWorks and carry out the motion analysis in three different conditions, Sl.No Wrist Pin Offset ` Crank Speed (Rpm) 1 "0" mm 2000 2 10 mm Positive  2000 3 10 mm Negative  2000 Obtain the Linear displacement of the Piston Head in all the three cases.…

Aim :  To design a planetary gear assembly using the following inputs  Ring Gear Module = 2.5 (You must use the metric system in design modeler) Number of teeth = 46 Sun Gear Number of teeth = 14 Input Speed of the Gear = 200 rpm. Number of planet gears = 4 The dimensions of the carrier depend on the…

Aim:  Create 3D models for driver and driven wheels. Perform motion analysis by rotating the driver wheel at 10rpm. Obtain the following plots Contact force (between driving and the driven wheel) as a function of time. Angular Displacement of the driven wheel. Compare the contact forces with and without "Precise contact"…