Lifting a load with a pulley seems simple and effortless but, have you ever wondered how much effort is required to lift a certain amount of load with a pulley or system of pulleys? Let us understand the different systems of pulley arrangments and see how we can calculate the force required to lift the […]
The Theory of machines is the branch of Engineering-science, which deals with the study of relative motion between the various parts of a machine, and the forces which act on them. In this branch of engineering science, we will deal with kinematics and dynamics.
What are Cam and Follower? What are the types?
You must have heard this Cam and follower mechanism is in Internal combustion engines. A Cam is a rotating machine element which gives reciprocating or oscillatory motions to another element known as the follower. Cam and Follower The Cam and the follower have a line contact and constitute a higher pair. Higher pair: When the […]
What is Torsionally Equivalent Shaft?
In General, the shaft is comprised of multiple cross-sectional diameters with different lengths. Sometimes it is necessary to assume the shaft as a uniform diameter and length for some calculations such as finding the natural frequency. In such cases, we have to replace the different cross-section diameters with the equivalent shaft of uniform diameter. Which […]
Natural Frequency of Free Torsional Vibrations
In the previous articles, we have discussed how to find the Natural Frequency for Free Longitudinal Vibrations and for free Transverse Vibrations. In this article, we are going to discuss the Natural Frequency of Free Torsional Vibrations. As we know the natural Frequency of the Free Torsional Vibrations can be determined by the following methods. Equilibrium […]
Natural Frequency of Free Transverse Vibrations
In the previous article, we have discussed how to find the Natural Frequency for Free Longitudinal Vibrations. In this article, we are going to discuss the Natural Frequency of Free Transverse Vibrations. As we know the natural Frequency of the Free Transverse Vibrations can be determined by the following methods. Equilibrium Method Energy Method Rayleigh’s […]
Natural Frequency of Free Longitudinal Vibrations
We have discussed different types of free vibrations (Longitudinal, Transverse, Torsional) in the previous article. In this article, we are going to discuss the Natural Frequency of Free Longitudinal Vibrations. The natural Frequency of the Free Longitudinal Vibrations can be determined by the following methods. Equilibrium Method Energy Method Rayleigh’s method Equilibrium Method Let us […]
What is Pickering Governor? How does it work?
The Pickering Governor is spring controlled load governor categorised under the centrifugal governors. We have discussed the Hartung Governor, Hartnell governor and Wilson-Hartnell Governor in the previous articles, which are also the spring-loaded governors with which have different construction and working principle from this type of governor. Pickering Governor Pickering Governor is spring-loaded governor as we have mentioned, instead […]
What is Wilson-Hartnell Governor? How does it work?
The Wilson-Hartnell Governor is spring controlled load governor categorised under the centrifugal governors. We have discussed the Hartung Governor and Hartnell governor in the previous articles, which are also the spring-loaded governors with which have different construction and working principle from this type of governor. Wilson-Hartnell Governor In this type of governor, there is no need for the […]
What is Hartung Governor? How does it work?
The Hartung Governor is spring controlled load governor categorised under the centrifugal governors. We have discussed the Hartnell governor in the previous article, which is also a spring-loaded governor which has a different working principle from this type of governor. Hartung Governor In this type of governor, there is no need for the load on […]
What is Hartnell Governor? How does it work?
In the previous articles, we have discussed the dead weight type governor such as the proter governor and the Proell governor. The Hartnell governor is the spring-loaded type governor instead of dead weight on the sleeve. Hartnell Governor Hartnell Governor is basically a Centrifugal governor with a spring-loaded weight instead of dead weight on the […]
What are the types of Free Vibrations?
As we have discussed the vibratory motion in the Previous article, The three different types of vibrations are the free vibrations, forced Vibrations, Damped Vibrations. In this article, we are going to discuss what are the different types of Free Vibrations. Types of Free Vibrations When an initial displacement is given to a body, and […]
What is Vibratory Motion? | Terms used in Vibratory Motion
In the Theory of Machines, the term Vibratory motion is defined as the to and fro motion of a body about a fixed point due to the internal forces by the strain energy. Let’s discuss more on the Vibratory Motion of an object and different terms used in the Vibratory motion in this article. Vibratory […]
What is Proell Governor? How does it work?
As we have discussed in the previous article, the Porter governor has the central load on the sleeve, now we are going to modify it by extending the links upward to support the revolving balls to make the Proell Governor. This will make the Proell governer more sensitive than the Porter Governor. Proell Governor This […]
What is Porter Governor? How does it work?
The Porter governor is a modification of Watt’s governor with an additional central load attached to the sleeve. In the previous article, we have discussed the Watt Governor in detail. The Watt governor is the simple centrifugal governor which works based on the balancing of the centrifugal force as the working principle. Now let’s discuss […]
What is Watt Governor?
The simplest type of Centrifugal Governor is the Watt governor. In the previous article, we have discussed the Centrifugal governer in detail. In this article, we are going to discuss the Watt Governor in more detail. Watt Governor The main working principle behind Watt governor is the balancing of the centrifugal force. So these come […]
Centrifugal Governor | Types of Governors
As we have already discussed what is a governor in an Engine, in this article, we are going to see how many different types of governors are available under Centrifugal Governor and Inertia Governor. Governor Types The governors are broadly classified as under centrifugal governors and the Inertia Governors. The Centrifugal governors are widely used […]
What is Governor in Engine? How Does it Work?
The main function of the Governor in the IC Engines is to regulate the mean speed of the engine when there is a variation in the load. But there the flywheel is used to control the fluctuations of the speed during each cycle. It should not be confused with the governor function with the flywheel […]
What is D′Alembert’s Principle?
What does D′Alembert’s principle state that “The system of forces acting on a body in motion and the Inertia force of the body is in dynamic equilibrium” But how does this helpfull? Where it is applied? Do you know Newton’s second law (Law of acceleration)? What did it state? It states F=ma. Whereas F = […]
What is Flywheel? Why it is used?
The Flywheel, so-called the Energy reservoir also some times referred to as the inertia ring. This is used to store the energy during the period when the supply of energy is more than the required and utilise it during the period when it is less than the required in the cyclic operation. Flywheel In the […]
Turning Moment Diagram for a Four Stroke Engine
What is the Turning Moment Diagram? The turning_moment diagram is the plot between the turning moment of the crank to the position of the crank. It is also known as the Crank-Effort Diagram since it represents the crank-effort for various positions of the crank. Turning Moment Diagram As we said above the turning_moment diagram is […]
