Project Description Posted by D. Dane Quinn on Wed 15 of Nov, 2017 20:31 EST I posted a description of the project. Its located on the Homework page...

Project Description Posted by D. Dane Quinn on Wed 15 of Nov, 2017 20:31 EST I posted a description of the project. Its located on the Homework page...

Posted by Miranda Hughes on Fri 01 of Dec, 2017 20:16 EST Hi guys, I have my loop closure equation set up for the five bar linkage but I am at a loss as far as coming up with equations from theta3,4,5 without having an unknown angle. I was trying to solve all of them in terms of theta2. Any help would be greatly appreciated.

Posted by Ryan Murphy on Wed 06 of Dec, 2017 23:33 EST So you’re given the information that link 2 turns with gear 2, and link 5 turns with gear 5. This means that you can relate the angles theta 2 and theta 5 by the gear ratio. For example if your r2 is 5cm and your r5 is 15cm. This means your gear ratio is 3 to 1. For every 3 turns of gear 2, you get 1 turn of gear 5. So if your gear 2 rotates 30 degrees counter clockwise, then your gear 5 will have rotated 10 degrees clockwise (opposite directions because the gears form an external pair). These are your values for theta 2 and theta 5 respectively.

Posted by Matt Mengon on Fri 08 of Dec, 2017 16:23 EST Hello again Dr Quinn, I’m having some trouble submitting now. I was able to upload a pdf of my code and everything else as images. I’m concerned that there were two different submission and I want to make sure both are viewed and graded. As far as I could tell gradescope will not let you submit a pdf and an image at the same time. Thanks Matt

Posted by Matt Mengon on Fri 08 of Dec, 2017 13:44 EST Hello guys, I’m working on my matlab code right now for the project and im trying to multiply two 1x63 matrix and im having some trouble. I know that the inner dimensions must agree. I am trying to get another 1x63 as my output. looking for an easy way to multiply these without getting 1 answer or 63^2 answers. I hope this clear... thanks for any help matt

Posted by D. Dane Quinn on Fri 08 of Dec, 2017 14:49 EST Use the dot notation. So if x and y are your matrices, you can multiply them element-wise with x.*y

Posted by Matt Mengon on Fri 08 of Dec, 2017 15:14 EST Thanks for the response Dr Quinn. I figured this out almost immediately after posting! My matlab is a bit rusty HA