Kinematics of Mechanisms - Theory of Machines
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
As its name implies, in double slider-crank chain, there are two sliders and one crank.
Kinematics of Mechanisms - Theory of Machines
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
From a single slider-crank chain, four different inversions can be obtained by fixing its four links one at a time in turn.
Kinematics of Mechanisms - Theory of Machines
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
A single slider-crank chain is a modification of a basic four-bar chain. It consists of one sliding pair and the three turning pairs.
Kinematics of Mechanisms - Theory of Machines
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
From a four-bar chain, four different inversions can be obtained by fixing its four links one at a time in turn.
Kinematics of Mechanisms - Theory of Machines
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
Grashof's law states that for a planar four-bar mechanism, the sum of the shortest and longest links must be less than or equal to the sum of the lengths of two other links, if there is to be continuous relative rotation between two members.
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
A four-bar chain is the most fundamental and the simplest kinematic chain.
Types of Kinematic Chain
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
The process of obtaining different mechanisms by fixing different links in a kinematic chain is known as inversion of the mechanism.
Kinematics of Mechanisms - Theory of Machines
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
The mobility or number of degrees of freedom is one of the main concerns in the design or analysis of a mechanism.
Mechanism Vs Machine
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
A mechanism is defined as a closed kinematic chain in which any one link is fixed.
Kinematics of Mechanisms - Theory of Machines
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
The general types of joints in a chain are shown in Fig. 1.20.
Kinematics of Mechanisms - Theory of Machines
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
A kinematic chain is defined as the combination of kinematic pairs in which each link forms a part of two kinematic pairs and the relative motion between the links is either completely constrained or successfully constrained.
Kinematics of Mechanisms - Theory of Machines
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
A kinematic pair is a joint of two links that permits relative motion.