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  1. JohnKGH

    Shear across Springs

    Hey guys, Thanks so much for the previous help. I've googled this question to no avail. Presently, I have 4 nodes in order (node 1, node2, node3, node4) with axial Spring2 elements connecting node1 to node2, a rigid body connection connecting node2 to node3 and another axial spring2...
  2. JohnKGH

    Contact Modeling

    Hi all, I'm trying to model bearing effects of 2 bodies composed of elastic materials defined as *Surface. I am placing a displacement control on to one of the bodies and am connecting the two using beam elements. Contact pairs is used with small sliding, surface to surface. When I run the...
  3. JohnKGH

    Image Help needed

    Hey guys, I have 2 questions, one is easy and one is hard. I have a bitmap image file thats in black and white. How can I invert the black colors into white colors and white colors into black colors? My second questions is, I would like to scan the image with a nxn square where n is a...
  4. JohnKGH

    Summing array entries

    Hey guys, This is the opposite of my last question. How do you find sums of consecutive array entries? I need them to be displayed however and therefore cannot use the sume function. By this I mean [4 5 6 7] = [9 11 13] Ultimately I want to use diff(x).*(sums of y).
  5. JohnKGH

    Calculating using individual array entries

    Hi, Im a beginner at matlab so please bear with me. I want to create a function that has 2 inputs from a datafile. Both are individual columns of a three column data file with input 1 as column 1 and input 2 as column 2. Is there a way I can make a formula to find the differences between...

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