Mechanical Engineering - Theory of machines - Discussion
Discussion Forum : Theory of machines - Section 1 (Q.No. 12)
12.
When the connection between the two elements is such that only required kind of relative motion occurs, it is known as self-closed pair.
Discussion:
5 comments Page 1 of 1.
Parth said:
6 years ago
Ex: worm and worm wheel.
Priyanshu said:
8 years ago
For self-close, D pair should be mechanically held together.
Rana Amrendra Singh said:
1 decade ago
When the two elements of pair are connected together MECHANICALLY in such a way that only required kind of relative motion occurs. Called self closed pair Ex. -all lower pair.
AHMAD said:
1 decade ago
When the connection between the two elements is such that only required kind of relative motion occurs THEN IT IS CALLED CONSTRAINED.
Ramesh Babu said:
1 decade ago
Force closed pair: If relative motion between the links is obtained by using external mechanism is known as force closed pair.
Ex:
1. Cam and Roller follower mechanism in which spring gives necessary support to get the desired motion.
2. Automatic door closing system.
Ex:
1. Cam and Roller follower mechanism in which spring gives necessary support to get the desired motion.
2. Automatic door closing system.
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