Theory Of Machines By Rs Khurmi Solution Manual Chapter 6 -

Some points are obvious, such as pin joints between two links. Kennedy's Theorem (Three Centres in a Line):

This rule states that if three bodies move relative to each other, their three relative instantaneous centres must lie on a straight line. This is the primary tool for finding "hidden" or virtual centres. 3. Calculate Linear and Angular Velocity Theory Of Machines By Rs Khurmi Solution Manual Chapter 6

at pin joints. This is the relative angular velocity between two connected links multiplied by the radius of the pin: Some points are obvious, such as pin joints

is a point, common to two bodies, that has the same velocity in each body. At a specific moment, the bodies behave as if they are rotating around this point relative to one another. 1. Identify the Number of Instantaneous Centres At a specific moment, the bodies behave as

from this chapter, such as a four-bar linkage or a slider-crank mechanism, that you'd like to walk through? ch06 Solman | PDF - Scribd

Once the necessary I-centres are located, you can find the velocity of any point. The fundamental relationship used is: v equals omega center dot r is the linear velocity of a point. is the angular velocity of the link. is the distance from the point to the relevant I-centre. 4. Solve for Rubbing Velocity