Mechanical Engineering - Theory of machines - Discussion
Discussion Forum : Theory of machines - Section 4 (Q.No. 3)
3.
The example of successfully constrained motion is a
Discussion:
2 comments Page 1 of 1.
Rupesh said:
7 years ago
Nice explanation, Thanks @Arun.
Arun said:
1 decade ago
1. Completely constrained motion:
Completely constrained motion is a type of constrained motion in which relative motion between the links of a kinematic pair occurs in a definite direction by itself, irrespective of the external forces applied.
2. Incompletely constrained motion:
In incompletely constrained motion, the relative motion between the links depend on the direction of external forces acting on them. A good example of incompletely constrained motion is the motion of a shaft inside a circular hole. Depending on the direction of external forces applied, the shaft may slide or turn (or do both) inside the circular hole.
Incompletely constrained motion is undesirable in any mechanical system. It leads to improper mechanical outputs.
3. Partially (or successfully) constrained motion:
A kinematic pair is said to be partially or successfully constrained if the relative motion between its links occurs in a definite direction, not by itself, but by some other means. A good example of successfully constrained motion is piston reciprocating inside a cylinder in an internal combustion engine.
Completely constrained motion is a type of constrained motion in which relative motion between the links of a kinematic pair occurs in a definite direction by itself, irrespective of the external forces applied.
2. Incompletely constrained motion:
In incompletely constrained motion, the relative motion between the links depend on the direction of external forces acting on them. A good example of incompletely constrained motion is the motion of a shaft inside a circular hole. Depending on the direction of external forces applied, the shaft may slide or turn (or do both) inside the circular hole.
Incompletely constrained motion is undesirable in any mechanical system. It leads to improper mechanical outputs.
3. Partially (or successfully) constrained motion:
A kinematic pair is said to be partially or successfully constrained if the relative motion between its links occurs in a definite direction, not by itself, but by some other means. A good example of successfully constrained motion is piston reciprocating inside a cylinder in an internal combustion engine.
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