SUBJECT: NAVAL SCIENCE,MATLAB

I require a tutor with background in Naval Architecture or related fields like Mechanical/Ocean Engg to explain the concept behind this analysis and why the output is the way it is in each case.

#Problem: The One dimensional Heave Motion Analysis over Time domain of a Cuboidal Ship using Cummins Equation/Impulse Response Function #Given Data/Assumptions/Input: *Ship dimensions (L,B,D) known *Added Mass and Damping Characteristics of ship known (From attached file 'Vugts graph'). * #Task: The attached pdf titled 'Comparative Analysis....' is the parent paper. My MATLAB codes attached uses that paper and solves the cummins equation using Impulse Response Function for finding heave motion in time domain of the given ship whose dimensions are known and damping values are known. @@@My code gives output for a default value of 20s and 0.05 s time interval, I require my code output to be checked. The motion must ideally decay to zero after some time, but in my output this is not the case. I suspect choice of excitation force to be the issue. A sample solution as to how the expected output should look is given in Figure 2 of the attached pdf file 'sample output...' What is the excitation force to be assumed to get a proper solution? Explanation for the output and how the memory function & Impulse Response is affecting or modifying the heave behaviour is required. The external Force 'Ft' in my code uses a wave excitation force as assumed in the code of an arbitrary form f*sin*omega*t. Is this wave excitation assumed of the right magnitude for a general sea state? Is the result going to change based on the choice of Ft? @@@ Once the Ft is sorted, the odefun code, that solves the Cummins equation in MATLAB is to be checked.Is it correct? @@@The code is to be run with other time spans and time increments and changes in resultant heave behaviour is to explained in terms of the memory effect. @@@Additional forces like Mooring Line Tension are to be added to this Ft and the output generated as an extension of my MATLAB code. A typical mooring line load for this vessel is to be assumed and explanation for the resultant output is required.

P.S: How do I upload files??