Kinematics of Mechanisms - Theory of Machines
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
We know that acceleration is the rate of change with respect to time.
Kinematics of Mechanisms - Theory of Machines
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
The rubbing velocity at a pin joint is defined as the algebraic sum between the angular velocities of two links which are connected by pin joints, multiplied by the radius of the pin.
Kinematics of Mechanisms - Theory of Machines
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
A slider-crank mechanism is shown in Fig.2.5(a). Crank OA rotates clockwise with angular velocity o rad/s.
Kinematics of Mechanisms - Theory of Machines
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
Fig.2.4(a) shows a four-bar chain ABCD in which AD is fixed and BC is the coupler.
Kinematics of Mechanisms - Theory of Machines
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
In this method, the velocity of links in a mechanism are determined using the following steps.
Kinematics of Mechanisms - Theory of Machines
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
Let a rigid link AB, rotate about a fixed point A with an uniform angular velocity o in the counter clockwise direction, as shown in Fig.2.3(a).
relative velocity of two bodies
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
Consider two bodies A and B moving along parallel lines in the same direction with absolute velocities vA and vB, as shown in Fig.2.1(a).
Kinematics of Mechanisms - Theory of Machines
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
The velocity and acceleration of links in a mechanism can be determined by any one of the following two methods.
Learning Objectives, Introduction
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
As we have discussed already, the subject theory of machines deals with the motion and forces acting on the parts of a machine.
Kinematics of Mechanisms - Theory of Machines
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
Explain the following terms: (a) Resistant body; (b) Kinematic link; (c) Kinematic pair; (d) Kinematic chain; and (e) Mechanism.
Kinematics of Mechanisms - Theory of Machines
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
The study of mechanisms involves both their analysis as well as synthesis.
Kinematics of Mechanisms - Theory of Machines
Subject and UNIT: Theory of Machines: Unit I: Kinematics of Mechanisms
The double slider-crank chain provides three different inversions.