Fundamentos de cinemática
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Transcript of Fundamentos de cinemática
Lecture 2
Kinematics FundamentalsLecture
Grashof Condition2/6/2015Victor Martinez-Fuentes2
Demonstration (see attached video)
2/6/2015Robert L. Norton, WPI3
InversionsInversions result from grounding different links in the chain.So, there are as many inversions as links.Not all inversions will have unique kinds of motion.For example, a Grashof Fourbar has only 3 distinct inversions, 2 crank-rockers, 1 double-crank, and 1 double-rocker.2/6/2015Victor Martinez-Fuentes4
Inversions of the Grashof Fourbar2/6/2015Victor Martinez-Fuentes5
S + L < P + Q
2/6/2015Robert L. Norton, WPI6
Inversions of the Non-Grashof Fourbar2/6/2015Victor Martinez-Fuentes7
S + L > P + Q
2/6/2015Robert L. Norton, WPI8
Special-Case Grashof Linkage2/6/2015Victor Martinez-Fuentes9
S + L = P + Q
Inversions of the Slider Crank2/6/2015Victor Martinez-Fuentes10
2/6/2015Robert L. Norton, WPI11
Inversions of the Sixbar Linkage2/6/2015Victor Martinez-Fuentes12
Find Their Grashof Conditions2/6/2015Victor Martinez-Fuentes13