What is completely constrained pair?
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What is completely constrained pair?
Completely Constrained Motion: When the motion between a pair can take place in one and only one way/direction, it is said to be completely constrained motion For example, a rectangular bar moving in a rectangular hole as shown in figure 9.
What is Revolute pair?
A revolute joint (also called pin joint or hinge joint) is a one-degree-of-freedom kinematic pair used frequently in mechanisms and machines. The joint constrains the motion of two bodies to pure rotation along a common axis.
What is a kinematic pair What is the difference between a completely constrained and a successfully constrained kinematic pair?
The two links or elements of a machine, when in contact with each other, are said to form a pair. If the relative motion between them is completely or successfully constrained (i.e. in a definite direction), the pair is known as kinematic pair.
What is meant by successfully constrained motion?
Successfully constrained motion: When the motion between the elements, forming a pair, is such that the constrained motion is not completed by itself, but by some other means, then the motion is said to be successfully constrained motion.
What is a constrained motion in mechanics?
Constrained motion results when an object is forced to move in a restricted way. For example, it may have to move along a curved track, to slide on a table that may accelerate upwards, to stay in contact with an accelerating wedge, etc.
What is lower pair?
A lower pair is an ideal joint that constrains contact between a surface in the moving body to a corresponding in the fixed body. A lower pair is one in which there occurs a surface or area contact between two members, e.g. nut and screw, universal joint used to connect two propeller shafts.
Which of the following is a higher pair?
Which of the following is a higher pair? Explanation: Belt and pulley are higher pairs as the motion is partly turning and partly sliding between them.
What is successfully constrained motion?