ME 32200 2AD XXXXXXXXXXProgramming Assignment XXXXXXXXXXG. Liu ________________________________________________________________________ The truss shown below represents the upper part of a power...

I have two Mat Lab coding assignments that was given and are due at the same time. The truss assignment should use Gauss elimination, Gauss-Jordan or LU decomposition which every fits this problem. Also the code should be similar to the professors code. I would provide those codes.


ME 32200 2AD Programming Assignment 2 G. Liu ________________________________________________________________________ The truss shown below represents the upper part of a power transmission line tower. a) Write a Matlab program to determine the reaction forces and force in each member located above HJ to at least 5 significant figures. Identify which force corresponds to which member and which members are in tension and which are in compression. Include a drawing of the portion of the truss being analyzed and a write up of the equilibrium equations used in your program. Check your solution by verifying that the entire structure above HJ taken as a free body is in equilibrium. b) Repeat part (a) but assume that the cable hanging from point F has fallen. ME 322 5EF ME 32200 Programming Assignment # 3 G. Liu Write a Matlab function program ???4(?, ?) which, given the value of a function at five unequally spaced base points (?, ?), uses a fourth degree interpolating polynomial to evaluate the derivative of the function at the first base point. Use the Matlab utilities polyfit, polyder and polyval to do this. Use this function program to solve the following problem: Calculate the enthalpy of vaporization hfg of R-134a refrigerant at -40 oC to at least 5 significant figures from the Clapeyron equation (??/??)??? = ℎ??/(? ???) Here (??/??)??? is the slope of the vaporization line, ? is absolute temperature and ??? is the difference in specific volume between saturated liquid and saturated vapor (??? = ?? − ??). Use appropriate data from the refrigerant R-134a table below and compare your calculated value of ℎ?? with that reported in the table. Perform the calculation two ways: (a) Using the 5 base points closest to -40oC, and (b) using the 5 equally spaced base points closest to -40oC. Which result is more accurate?