4-Vector Loop - AME 352 VECTOR LOOP Vector Loop Vector Loop...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
AME 352 VECTOR LOOP P.E. Nikravesh 1 Vector Loop Vector Loop For kinematic analysis vectors are used to connect the joints of a mechanism to form one or more loops (also called closed chains). In most cases, a vector in a loop connects two pin joints that are on a link. If two links form a sliding joint, the defined vector is between two pin joints, one on each link. In rare cases, a vector may start or end at a reference point that may not be a pin joint. In a loop, we can move from one vector to another until we reach the point we started from. Vectors can be directed in a positive sense (tail to head) or negative sense (head to tail) when we move through a loop. For example, for a four-bar mechanism, two scenarios for directing the vectors are shown. For the left scenario a vector loop equation can be written as R AO 2 + R BA ± R BO 4 ± R O 4 O 2 = 0 For the right scenario the vector loop equation becomes R AO 2 ± R AB + R O 4 B ± R O 4 O 2 = 0 Obviously, there are many other possible scenarios.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/08/2010 for the course AME 352 taught by Professor Nikravesh during the Fall '08 term at University of Arizona- Tucson.

Page1 / 3

4-Vector Loop - AME 352 VECTOR LOOP Vector Loop Vector Loop...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online