Basics of theory of machine
Theory of Machine may be defined as that branch of Engineering-science, which deals with the study.
Kinematics. It is that branch of Theory of Machine which deals with the relative motion between the various parts of the machines or assembly.
Kinetics. It is that branch of Theory of Machine which deals with the inertia forces which is due to the effect of the mass and motion of the machine parts.
Statics. It is that branch of Theory of Machine which deals with the forces and their effects when the machine parts are at rest.
Dynamic. It is that branch of Theory of Machine which deals with the forces and their effects, when acting upon the machine parts in motion.
Force
which may be defined as an factor which produces any activity or oppose to activity, complet activity or tends to complex activity.
Resultant Force
If a number of forces A B C etc. are acting simultaneously on a particle, then a single force, which will produce the same effect as that of all the given forces, is known as a resultant force. The forces A B C etc. are called component forces.
Parallelogram law of forces. It states, “If two forces acting simultaneously on a particle and they represented in magnitude and direction by the two adjacent sides of a parallelogram taken in order, their resultant may be represented in magnitude and direction by the diagonal of the parallelogram passing through the point.
Triangle law of forces. It states, If two forces acting simultaneously on a particle be represented in magnitude and direction by the two sides of a triangle taken in order, their resultant may be represented in magnitude and direction by the third side of the triangle taken in opposite order.
Polygon law of forces. It states, If a number of forces acting simultaneously on a particle be represented in magnitude and direction by the sides of a polygon taken in order, their resultant may be represented in magnitude and direction by the closing side of the polygon taken in opposite order.
Kinematics. It is that branch of Theory of Machine which deals with the relative motion between the various parts of the machines or assembly.
Kinetics. It is that branch of Theory of Machine which deals with the inertia forces which is due to the effect of the mass and motion of the machine parts.
Statics. It is that branch of Theory of Machine which deals with the forces and their effects when the machine parts are at rest.
Dynamic. It is that branch of Theory of Machine which deals with the forces and their effects, when acting upon the machine parts in motion.
Force
which may be defined as an factor which produces any activity or oppose to activity, complet activity or tends to complex activity.
Resultant Force
If a number of forces A B C etc. are acting simultaneously on a particle, then a single force, which will produce the same effect as that of all the given forces, is known as a resultant force. The forces A B C etc. are called component forces.
Parallelogram law of forces. It states, “If two forces acting simultaneously on a particle and they represented in magnitude and direction by the two adjacent sides of a parallelogram taken in order, their resultant may be represented in magnitude and direction by the diagonal of the parallelogram passing through the point.
Triangle law of forces. It states, If two forces acting simultaneously on a particle be represented in magnitude and direction by the two sides of a triangle taken in order, their resultant may be represented in magnitude and direction by the third side of the triangle taken in opposite order.
Polygon law of forces. It states, If a number of forces acting simultaneously on a particle be represented in magnitude and direction by the sides of a polygon taken in order, their resultant may be represented in magnitude and direction by the closing side of the polygon taken in opposite order.
