1] Completely constrained motion:- when the motion between two elements of a pair is in a definite direction irrespective of the direction of the force applied, it is known as completely constrained motion. The constrained motion may be linear or rotary.
The sliding pair of the fig.1 is the example of the completely constrained motion. In sliding pair the inner prism can only slide inside the hollow prism.
2] Incompletely constrained or unconstrained motion:- When the motion between two elements of a pair is possible in more than one direction, and depends upon the direction of the force applied, it is known as incompletely constrained motion.
3] Successfully constrained motion:- When the motion between two elements of a pair is possible in more than one direction but is made to have motion only in one direction by using some external means, it is successfully constrained motion. For example a shaft in foot step bearing may have vertical motion apart from rotary motion . But due to load applied on the shaft it is constrained to move in that direction and thus is a successfully constrained motion.
Telegram channel- Join Now
 |
| Fig. 1 Completely constrained motion |
The sliding pair of the fig.1 is the example of the completely constrained motion. In sliding pair the inner prism can only slide inside the hollow prism.
2] Incompletely constrained or unconstrained motion:- When the motion between two elements of a pair is possible in more than one direction, and depends upon the direction of the force applied, it is known as incompletely constrained motion.
 |
| Fig. 2 Incompletely constrained or unconstrained motion |
3] Successfully constrained motion:- When the motion between two elements of a pair is possible in more than one direction but is made to have motion only in one direction by using some external means, it is successfully constrained motion. For example a shaft in foot step bearing may have vertical motion apart from rotary motion . But due to load applied on the shaft it is constrained to move in that direction and thus is a successfully constrained motion.
 |
| Fig. 3 Successfully constrained motion |
Telegram channel- Join Now
0 Comments
Please let me know, if you want to know something else or in case of any doubt.