me351_DesignEx

21 i65 137 i109 ph68114 ps 61 34

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: point on coupler grid; hold off We use this in Matlab as follows: >> gam=[-95,-121]; del=[-1.21-i*.65;-1.37-i*1.09]; >> ph=[68,114]; ps=[-61,-34]; >> zout=motion1ad3(del,gam,ph,ps) zout = -0.2495 + 1.0943i 0.0311 + 0.7003i -0.4307 - 0.5497i -0.1501 - 0.9438i 0.3810 - 0.1276i 0.8117 + 0.4221i The program also draws the following figure (Note that the command axis square leads to some distortion of the mechanism. A truer representation of the actual linkage can be obtained using axis equal, but this results in smaller pictures when using the subplot command.) 1 1 1 0.5 0.5 0.5 0 0 0 -0.5 -0.5 -0.5 -1 -0.5 0 0.5 -1 -0.5 0 0.5 -1 -0.5 0 0.5 Next, we look at another motion design problem from the text: Problem 8.21(b), p.631. This is a 4 bar mechanism to lift a boat from a trailer and put it on the ground. As usual, the specification in the text is very vague (e.g., no dimensions are provided, and no information as to desired orientation angles is given). Using the notation already...
View Full Document

This document was uploaded on 11/08/2013.

Ask a homework question - tutors are online