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Degree of freedom mechanics8/29/2023 ![]() A free body in space (fig 1.18) can have six degrees of freedom. ![]() In general, if ‘n’ number of links are connected at a joint, it is equivalent to (n-1) binary joints.ĭegrees of freedom (DOF): It is the number of independent coordinates required to describe the position of a body in space. It is considered equivalent to three binary joints since fixing of any one link constitutes three binary joints. ![]() Quaternary Joint: If four links are joined at a connection, it is known as a quaternary joint. It is considered equivalent to two binary joints since fixing of any one link constitutes two binary joints with each of the other two links. Ternary Joint: If three links are joined at a connection, it is known as a ternary joint. 1.17 shows a chain with two binary joints named B. If the links are connected in such a way that no motion is possible, it results in a locked chain or structure.īinary Joint: If two links are joined at the same connection it is called a binary joint. Kinematic chain: A kinematic chain is a group of links either joined together or arranged in a manner that permits them to move relative to one another.
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