Posts tagged ‘mechanical engineering’

5 Reasons Why Mechanical Engineering Totally Rocks As a Major!

Feel curious about what makes machines tick, what makes cars zoom etc.? Then Mechanical engineering might just be the course for you!


Known as one of the oldest and most versatile branch of engineering Mechanical Engineering is a unique discipline that comprises of various subjects such as mechanics, thermodynamics, material science, electricity etc. Mechanical Engineers use tools such as computer aided design ( CAD), and product life cycle management to design, repair and analyses machinery, industrial equipment, transport systems, robotics medical equipment designing etc.


So if you are someone who is curious about what makes various machines function then you should totally go for a BTech in Mechanical Engineering. Read on to find below what makes Mech Engineering a rocking major!


Great Job Prospects: According to IBEF (Indian Brand Equity Foundation) the automobile industry ( one of the major employers of  Mech engineers) accounts for almost 7.1% of the GDP ( Gross Domestic Product) . The IBEF predicts that the automobile industry is estimated to grow at around 10-15% to reach US $ 16.5 Billion by 2021. So it is inevitable that the demand for competent mechanical engineers will be high. After your graduation in Mechanical Engineering you can look forward to work in PSUs  like DRDO, GAIL India, ONGC Ltd, BHEL, NALCO etc.


Basically every industry that involves usage of mechanical equipment ranging from aircraft to mining equipment and household gadgets will need a mechanical engineer to design and repair the machines. Even companies that are not known for mechanical devices like beauty and health product company Proctor and Gamble hire mechanical engineers for packaging and product designing purposes.


Be at the forefront of technological future: Mechanical engineering being one of the oldest and most inclusive branches of engineering can often be found in the list of engineering disciplines contributing to technological revolution in numerous industries such as robotics, healthcare, construction, transport etc.


Ability to Be Creative; Mechanical Engineering is not just science but an art. With the help of thermodynamics mechanical engineers knows the secret of how every machine from the flying helicopter to the air conditioner at home functions and can create, design and repair various mechanical equipment’s effectively in no time.


Versatile Job Prospects: A degree in mechanical engineering can prepare you for jobs in numerous industries including aerospace industry, automotive sector, chemical industry, construction industry, defense industry, electronics industry, FMCG  industry etc. In the aerospace industry, mechanical engineers are hired to research, design, maintain and operate aircraft. In the automotive sector, Mech engineers are recruited to design and manufacture motor vehicles. In the chemical mechanical engineers are often needed by plants and oil companies to develop new process technologies.


In the construction industry mechanical engineers are required to design ventilation systems of houses and buildings. In the electronic and defense industry, mechanical engineers are needed to design and maintain machine parts for the military and other sectors like medicine and automotive. In the FMCG industry many household cleaning and maintenance equipment’s and food processing equipment’s are design and maintained by mechanical engineers.


Apart from this mechanical engineers can also look forward to be hired by the railway sector to construct, design, maintain rail system components like tracks and trains as well as train control systems. After you graduate you can choose to specialize professionally in manufacturing (Production and Research and Development), designing, piping, automobile etc. That’s a lot of job opportunities to look forward to!


Generous Salary Prospects: According to websites such as PayScale,com, fresher Mechanical Engineering graduates start with about a 3.35 lakhs per annum. With enough industry experience and skills such as C++, ANSYS, ANSYS Simulation Software, PMP or Project Management, Mech engineers can look forward to earning as high as 9-12 lakhs per annum!



If you are looking for a top notch college in West Bengal that offers a high quality Mechanical Engineering course then you can consider Brainware Engineering College. Associated with WBUT (formerly MAKAUT) Brainware Engineering College operates from Barasat and offers several top rated engineering courses at affordable rates. Unique features of the Brainware engineering courses include, opportunities to avail internationally acclaimed certifications, and a highly developed pre placement team that meticulously works to help graduates develop formidable soft skills so that they become more employable.

Top 4 Must Have Technical Skills For Mechanical Engineers

The job market today is skill oriented. And if you are an engineer, the amount of core skills you have becomes directly proportional to your employability. Whether you are a computer engineer, an electrical engineer or a mechanical engineer, what industry related skills you have, how much knowledge you possess about core engineering concepts will be the ultimate criteria in getting a job.


So if you are a mechanical engineering graduate and just begin the hunting for jobs, then you have to start polishing your core skills from day one. In this essay we will underline some major skills, and core knowledge prospective employers expect from mechanical engineers.


Solid Core Knowledge : This is a no gamer. Every engineer regardless of their branch, is expected to have core knowledge in their subject. If your engineering basics are weak, then finding success in your career will be extremely difficult.

As a mechanical engineer you are expected to have a good to excellent knowledge in core areas such as free hand 3D drawing/machine drawing ,  on material science – strength/properties of different engineering materials, thermodynamics and HMT – learn about heat, work, energy, heat transfer etc,

You are also expected to have knowledge regarding theory of machines, fluid mechanics – properties of fluid in static or dynamic condition etc.


Knowledge in Programming & Electronic Circuits : Contrary to what you have believe till date, programming is not just for the computer/software engineers. Mechanical engineers also do need some basic knowledge of programming. Especially if they are working at a field which involves installing control systems.

For example if a mechanical engineer is designing an automobile system, knowledge/expertise on programming languages like MATLAB, will save him wastage of resources and funds. Programming languages like MATLAB and SimuLink help mechanical engineers test out their equations on automobile prototypes with ease.

Nowadays knowledge of programming languages such as MATLAB, Computer Aided Design ( CAD) , MATHEMATICA, Python, will set you apart from your peers in eyes of prospective recruiter.


Project management : Mechanical engineers should also master project management – the art of managing a project from inception to completion. They should ensure that the designs they have come up with can be successfully incorporated into the mechanical system requirements. By learning project management, mechanical engineer will be able to think holistically about their projects – budgeting, negotiation with vendors, designing for reliability and so on.


Get Adept at PLM Skills : Nowadays more and more firms are expecting their mechanical engineering candidates to be skilled at PLM or Product Lifecycle Management.. Being skilled at PLM software such as ENOVIA, Windchill etc.

Welding of wood

Have you ever wondered how to join two pieces instead of using glue? Say for example, can you join two pieces of wood to make it appear as a single piece? The answer lies in the fine craftsmanship of a mechanical engineer who knows the emerging science of “mechanically-induced wood flow welding” pretty well. Now to “weld” wood, which is quite a promising technology, you need to force pieces of lumber together by pressing (at 60 – 330 psi) and rubbing the parts to-and-fro at a very high speed for 4 to 5 seconds. The friction created in between the pieces heats and melts the primary components of wood, lignin and fibers present on the exposed surface. In the next few seconds, the molten lignin of both the surfaces intertwines in a matrix and finally solidifies when the friction movement is stopped and the interface cools down. It results in the formation of a full piece of wood of desired shape and size.

Laboratory for Timber Construction IBOIS of Ecole Polytechnique (EPFL), Switzerland applied the principle of friction welding to weld wood for the first time. The University of Tennessee has also been exploring the same area. Their research is mainly focused on the fabrication and application of welded timber panels. The research work has produced small-scale welded wooden samples successfully. Those samples have gone through tests of bending and shear-giving and have yielded positive results. Here it should be noted that the structural design of welded timber construction requires a calculation tool for strength prediction to make those lumber pieces work practically. Initially probabilistic methods were used to determine the load bearing capacity. There the welded joints had both parallel and perpendicular natural fiber patterns. The mathematically calculated and experimentally determined strength were found to stay in good agreement with each other. Further research in this sphere will encourage investigations into more complex systems.

Now let us come back to the basics and take a tour of the history of welding science. As a preconceived belief, welding is possible using only a good conductor of thermal energy and electricity. The parent materials should be joined in such a manner that the physical and the chemical properties of the welded portion remain same as the matter itself. Not only the finished product should look like a single piece but must also retain the ditto chemical qualities. Therefore welding of wood, if judged in this light, does not seem to have any real life acquaintance. However, standing in 2016, this chapter in mechanical engineering has passed the test of time in the very ritualistic way of how welding is done. It is an almost unthinkable phenomenon! After all, Science never fails to surprise. At every instance, and that too in a very pleasant way.

  • ·        Reference:

The websites of EPFL & the University of Tennessee

Mechanical Knee Joint

Amputation involves the removal of the leg to a level above the diseased area. Amputation will only be advised once all other options to save the leg have been looked at.

Disarticulation of knee means amputation through knee joint. Various artificial knee joints are manufactured for pain relief, mobility, prevention of gross infection, and prevention of growth of a tumor. A joint is formed where two bones make contact. Mechanical knee joint helps relative motion and provide support to the human body. Mechanical knees are mainly of two types: single-axis and multi-axis. Single-axis knees comprise of hinge and they are considered to be the simplest, most economical and the most durable. The drawback is that they do not have stance control. That means amputees need to use their own power to keep themselves stable when standing. This type of knees have constant-friction control and a manual lock to prevent the leg from swinging forward rapidly. Multi-axis or four-bar knees are more popular because they have multiple axes of rotation, which allow stability, yet an easy-to-bend swing. Another advantage and popular option of polycentric knee or multi-axis knee is that the leg’s overall length shortens in stride, reducing the risk of stumbling. Polycentric knees are suitable for many amputees, including those who cannot walk securely with other knee and those who have knee disarticulation or bilateral leg amputations, or have long residual limbs. Several polycentric knees have fluid (pneumatic or hydraulic) swing control, which permit variable walking speeds.

Mechanical Knee Joint

Hydraulic control systems are considered to function very close to a normal knee. Hydraulic systems use liquid, usually silicone oil, to respond to a range of walking speeds. Although they provide a smoother gait, they are heavier, require more maintenance, and are more expensive, at least initially. Pneumatic control systems use pistons inside cylinders containing air. These cylinders are compressed as the knee is flexed. It stores the energy like a spring and then returns the energy to the knee as it is extended. A spring coil may be added for additional control. Pneumatic systems are considered to provide better swing control to friction knees, but to be less effective than hydraulic systems.

Ohio Willow Wood from Ohio, Össur from Iceland, Zimmer Biomet from Warsaw, Indiana, Stryker Corporation from Michigan, United States are among the few who have been manufacturing various types of knee joints. Össur Total Knee® 1900 and Total Knee 2000 are for low level activity and single speed walking, whereas Total Knee 2100 is for highly active lifestyle. Plus there is also GeoFlex™ Knee from Ohio Willow Wood. It  is specially designed for wearers who are just learning to walk or are less active.



A large amount of electrical power in most of the countries is consumed in lighting the streets. Street Light Control (SLC) is an innovative light management system for street lighting. Street lighting control facilitates reduction of energy conversion, CO2 emission and light pollution. The street light software allows to keep the entire street lighting under control. Street Light Control thus saves energy and reduces operational costs, increases security and flexibility of the lighting.



Street Light Control:

WLAN, now-a-days, in the public place is no longer a distinct vision and not a huge or difficult project. The ever-increasing demand introduces the street light control light management system. The latest generation of the street light control system wirelessly connects luminaries in the network based on the new future-safe IP V6 network standard. Information is transmitted from light head to light head and communicated in clustered form via routers over the internet to the central control point. The system is so flexible that it searches from another path in an intelligent and self-restoring way if one unit fails.


Light masts as a part of traffic and parking management:

This radio network is available everywhere, where these luminaries have been installed and can become the backbone for completely new smart city services- on the one hand for area wide information network structures in towns and cities, and on the other for new sensor supported services. For example, it may be effective for detecting vacant parking lots or measuring traffic density, to navigate drivers to parking space or to guide complete traffic flows through urban areas.


Intelligent Street Light System using GSM


Main Functions:

Remote on / off, dimming and on-side status check

System fault detection or alarm

Anti-theft detection / alarm

Date management (energy consumption report)

24 hour online monitoring

Reduce energy use upto 40%

Reduce maintenance upto 50%

increase bulb life upto 25%


Unique Characteristics:

Detecting failures of any node

Tolerance to communication network

Dynamic network topology

Smart street lighting system integrates new technologies offering ease of maintenance and energy savings. The mentioned systems are appropriate for street lighting in remote as well as urban areas where traffic is low at times. Along with energy savings, it also tackles with problems of power theft. Moreover, it is capable of taking corrective actions in case of unprecedented events of climate changes.