Tag: mechanical engineering

What is Mechanical Engineering?


Mechanical engineering is a diverse subject that derives its breadth from the need to design and manufacture everything from small individual parts and devices (e.g., microscale sensors and inkjet printer nozzles) to large systems (e.g., spacecraft and machine tools). The role of a mechanical engineer is to take a product from an idea to the marketplace. In order to accomplish this, a broad range of skills are needed. The mechanical engineer needs to acquire particular skills and knowledge. He/she needs to understand the forces and the thermal environment that a product, its parts, or its subsystems will encounter; to design them for functionality, aesthetics, and the ability to withstand the forces and the thermal environment they will be subjected to; and to determine the best way to manufacture them and ensure they will operate without failure. Perhaps the one skill that is the mechanical engineer’s exclusive domain is the ability to analyze and design objects and systems with motion.

Since these skills are required for virtually everything that is made, mechanical engineering is perhaps the broadest and most diverse of engineering disciplines. Mechanical engineers play a central role in such industries as automotive (from the car chassis to its every subsystem—engine, transmission, sensors); aerospace (airplanes, aircraft engines, control systems for airplanes and spacecraft); biotechnology (implants, prosthetic devices, fluidic systems for pharmaceutical industries); computers and electronics (disk drives, printers, cooling systems, semiconductor tools); microelectromechanical systems, or MEMS (sensors, actuators, micropower generation); energy conversion (gas turbines, wind turbines, solar energy, fuel cells); environmental control (HVAC, air-conditioning, refrigeration, compressors); automation (robots, data and image acquisition, recognition, control); manufacturing (machining, machine tools, prototyping, microfabrication).

To put it simply, mechanical engineering deals with anything that moves, including the human body, a very complex machine. Mechanical engineers learn about materials, solid and fluid mechanics, thermodynamics, heat transfer, control, instrumentation, design, and manufacturing to understand mechanical systems. Specialized mechanical engineering subjects include biomechanics, cartilage-tissue engineering, energy conversion, laser-assisted materials processing, combustion, MEMS, microfluidic devices, fracture mechanics, nanomechanics, mechanisms, micropower generation, tribology (friction and wear), and vibrations. The American Society of Mechanical Engineers (ASME) currently lists 36 technical divisions, from advanced energy systems and aerospace engineering to solid-waste engineering and textile engineering.

The breadth of the mechanical engineering discipline allows students a variety of career options beyond some of the industries listed above. Regardless of the particular path they envision for themselves after they graduate, their education will have provided them with the creative thinking that allows them to design an exciting product or system, the analytical tools to achieve their design goals, the ability to overcome all constraints, and the teamwork needed to design, market, and produce a system. These valuable skills could also launch a career in medicine, law, consulting, management, banking, finance, and so on.

For those interested in applied scientific and mathematical aspects of the discipline, graduate study in mechanical engineering can lead to a career of research and teaching.

Job : Mechanical Engineers


Mechanical engineer:Job description

Mechanical engineers provide efficient solutions to the development of processes and products,

ranging from small component designs to extremely large plant, machinery or vehicles.

They can work on all stages of a product, from research and development to design and manufacture,

through to installation and final commissioning.

Most industries rely on a form of mechanical systems and mechanical engineering is thought to be

one of the most diverse of all engineering disciplines. Due to this, there are employment opportunities

in a wide range of sectors, including:

 manufacturing;

 power;

 construction;

 medical.

Mechanical engineers can be involved in the management of people and resources, as well as the

development and use of new materials and technologies.

Typical work activities

Projects that mechanical engineers work on can vary significantly, from researching and developing

medical products (such as mechanical hearts), to improving production processes in large oil

refineries or designing services within buildings.

Across all sectors, tasks generally include:

 designing and implementing cost-effective equipment modifications to help improve safety and

reliability;

 developing a project specification with colleagues, often including those from other engineering

disciplines;

 developing, testing and evaluating theoretical designs;

 discussing and solving complex problems with manufacturing departments, sub-contractors,

suppliers and customers;

 making sure a product can be made reliably and will perform consistently in specified operating

environments;

 managing projects using engineering principles and techniques;

 planning and designing new production processes;

 producing details of specifications and outline designs;

 recommending modifications following prototype test results;

 using research, analytical, conceptual and planning skills, particularly mathematical modelling

and computer-aided design;

 considering the implications of issues such as cost, safety and time constraints;

 working with other professionals, within and outside the engineering sector;

 monitoring and commissioning plant and systems.

Mechanical engineer:Salary and conditions

 Starting salaries for mechanical engineers and for those on graduate training schemes are in the

range of $20,000 to $28,000.

 With experience this can increase to between $25,000 and $35,000. At a mid-level for lead or

principle engineers salaries are around $35,000 to $50,000.

 When a senior level is reached, such as chief engineer, salaries of $45,000 to $

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60,000+ can be

achieved.

 Salaries vary from company to company and some sectors attract higher salaries, according to

demand.

 Working hours typically include regular extra hours, but not usually weekends or shifts.

 The work is mainly office-based with regular visits to plants, factories, workshops or building

sites. Factory production areas can be noisy.

 Self-employment and freelance work are possible for qualified engineers with a good track record

and experience. Short-term contract or consulting work is also possible, often arranged through

agencies.

 Women are currently under-represented within chartered engineering, although there are

initiatives in place to try and encourage more women into the industry, such

as WISEand Women’s Engineering

 Opportunities are usually available in towns and cities that have a strong manufacturing or

research base, or in regions where there is a local facility that supports specialist engineering.

 Work is often to deadlines, particularly in consultancy work.

 Dress code can vary from smart for office-based work to a hard hat and overalls when working

on site.

 Travel within a working day is frequent. Absence from home overnight and overseas work or

travel may be required, depending on the employer and nature of the business.

 There are many opportunities to work abroad, particularly throughout Europe, Asia, the Middle

East and Australia. It is possible to gain professional recognition in other European countries and

chartered engineers can apply for European engineer status (Eur Ing).

Mechanical engineer:Related jobs

 Aerospace engineer

 Automotive engineer

 Biomedical engineer

 Building services engineer

 Control and instrumentation engineer

 Drilling engineer

 Energy engineer

 Manufacturing systems engineer

 Naval architect

 Technical sales engineer

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