Home Business & Career Education What Are The Different Sub Branches In Mechanical Engineering?

What Are The Different Sub Branches In Mechanical Engineering?


Mechanical engineering is a broad discipline that uses and applies the principles of engineering to the design and building of machines and their parts.

The modern world comes with a range of moving parts. From the way that the clock on the wall ticks away the minutes to the spinning of a car’s wheels on their axle, it takes many accurate pieces and movements to keep them running smoothly. 

While it takes several hands and machines to bring together something so complex such as a car, those hands know what and how to do because of a mechanical engineer.

Mechanical engineers that graduate from Best Mechanical Engineering Colleges work across a large variety of industries conceptualizing, designing, creating, and building machines along with their components.

Even though it is one of the oldest and most in-demand engineering disciplines, it is also one that continues to advance and grow with developments in technology, making it an exciting career path to date.

As the name suggests, mechanical engineering mostly relates to machines and mechanics in the broadest sense.

Since machines are involved in all the possible aspects of human life right from the most fundamental domestic machines to complex automated machines in large scale industries, it is not surprising that there are numerous arms of mechanical engineering which deal with various perspectives of the same that are as listed below.

Marine Engineering

This sub-branch of mechanical engineering deals with the operation and maintenance of propulsion and other machinery on board ships. The machinery on a ship ranges from boilers, pumps, main propulsion plant, auxiliary generators, purifiers, and so forth.

Power Plant Engineering

Every process requires power and energy, and it is generated in power plants which could be different in their procedures of production such as nuclear, thermal, hydro etc. This division of mechanical engineering mainly uses the principles of thermodynamics and utilizes equipment like boilers, alternators, etc.

HVAC Engineering

Climate and weather are naturally changing or occurring phenomenon, but we can at least still control the elements within finite space, and that is what HVAC engineering is all about. HVAC stands for Heating, Ventilation & Air-Conditioning engineering and includes principles of fluid transfer, thermodynamics, etc.

Aerospace Engineering

Like marine engineering which deals with floating vessels, aerospace engineering deals with flying machines.

Automotive Engineering

This specialised sub-branch of mechanical engineering deals with vehicles that run on roads rather than sea or air. It could have further involved several sub-parameters which in turn require specialized skills of their own such as a design engineer, safety engineer, and so on, who take care of various aspects of automotive engineering during its design, manufacturing or maintenance.


Mechatronics is a recent addition to the branch of mechanical engineering and refers to a combination of mechanical, computer and electronics engineering. Hence it can be referred to a hybrid branch that covers many fields at the same time. It also involves the minds of engineers who studied in the Best College for Electronics and Communication Engineering in India

Computer-Aided Engineering

Computer-Aided Engineering is known more popularly as CAE and utilized in combination with CAD – Computer Aided Design and CAM – Computer Aided Manufacturing, it mainly refers to the use of computers and its related software for carrying out design, analysis, simulation of different machines and procedures. It is used in different disciplines such as naval architecture, automobile design, and so on.

It should also be noted that at this stage, although different branches have been mentioned above, they are not stand-alone disciplines in their own.

Technology has become so interrelated and complicated today that most of these sub-branches are a mixture of other branches of mechanical engineering along with other disciplines of engineering, such as electronics and computers.


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