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MATLAB Assignment 7

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F11Wendy

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Unread post Thu Oct 27, 2011 9:50 pm

MATLAB Assignment 7

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F11Carrie

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Unread post Mon Oct 31, 2011 5:02 pm

Re: MATLAB Assignment 7

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F11Matthew

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Unread post Mon Oct 31, 2011 8:49 pm

Re: MATLAB Assignment 7

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For the displacement plots I put both x and y on the vertical axis vs time (it seemed odd putting both on the horizontal and time on the vertical). If the plot is supposed to have x on the horizontal and y on the vertical, I can change it or add another plot, just let me know.
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Dan Negrut

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Unread post Mon Oct 31, 2011 9:40 pm

Re: MATLAB Assignment 7

F11Matthew wrote:
Plots.PNG


For the displacement plots I put both x and y on the vertical axis vs time (it seemed odd putting both on the horizontal and time on the vertical). If the plot is supposed to have x on the horizontal and y on the vertical, I can change it or add another plot, just let me know.


Matt - put them together, i want to see whether you get a circle...
Dan
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F11Gratz

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Unread post Tue Nov 01, 2011 4:20 pm

Re: MATLAB Assignment 7

Plot xDD vs. t.PNG
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Plot y vs. x.PNG
Plot y vs. x.PNG (9.41 KiB) Viewed 10110 times


What are we supposed to submit for this assignment? Just these plots, or the code as well? I ask because, now that my program seems to be working, the code to solve any of these problems should be rather similar, I think.
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F11Rebecca

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Unread post Tue Nov 01, 2011 8:24 pm

Re: MATLAB Assignment 7

Here are my plots:
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Plots - Reba Shotwell.png
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F11Graham

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Unread post Tue Nov 01, 2011 10:09 pm

Re: MATLAB Assignment 7

Here are my plots:
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F11Ryan

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Unread post Tue Nov 01, 2011 10:48 pm

Re: MATLAB Assignment 7

plots
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F11Brian

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Unread post Tue Nov 01, 2011 11:48 pm

Re: MATLAB Assignment 7

I have a couple of questions pertaining to MATLAB HW 7:
1)How do you upload an image to this forum?
2)What is the significance of outputSteps in the acf file? I generated results without using this value. Is it supposed to be relate the tolerance used for the Newton-Raphson method?
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Dan Negrut

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Unread post Wed Nov 02, 2011 7:10 am

Re: MATLAB Assignment 7

F11Brian wrote:I have a couple of questions pertaining to MATLAB HW 7:
1)How do you upload an image to this forum?
2)What is the significance of outputSteps in the acf file? I generated results without using this value. Is it supposed to be relate the tolerance used for the Newton-Raphson method?



1. when you post an article you have the option to upload a file. upload a png or jpg, that should to it.
2. suppose you have an time step of 1E-6. You can have something this small in dynamics when you have to advance the simulation with a very small time step due to friction, impact, etc. Then, you don't want to save information to output every 1E-6 seconds since then in order to simulate for 2 sec you would write to disk 2E6, which is super slow and wastes a lot of memory space. Moreover, your eye wouldn't see the difference if you print out results every 1E-6 or every 1E-3 seconds. The value outputSteps is supposed to indicate how many time state information is to be saved for post-processing (printing, looking at results, etc.). If outputSteps=100 and your simulation is 2 seconds long, then the state of the system will be sent out every 0.02 seconds (Tend/outputSteps).

I hope this helps.
Dan
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F11Jonathan

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Unread post Wed Nov 02, 2011 10:50 am

Re: MATLAB Assignment 7

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xvsy.jpg
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F11Christopher

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Unread post Wed Nov 02, 2011 2:40 pm

Re: MATLAB Assignment 7

Here are my plots
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Plots MATLAB Assignment 7.jpg
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F11Kwang

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Unread post Thu Nov 03, 2011 3:53 pm

Re: MATLAB Assignment 7

Kwang Won Choi
Result for acceleration xddot and plot of center.
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acceleration_xddot.jpg
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F11Brian

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Unread post Thu Nov 03, 2011 8:19 pm

Re: MATLAB Assignment 7

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F11Thao

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Unread post Thu Nov 03, 2011 11:05 pm

Re: MATLAB Assignment 7

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acceleration.jpg
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