Mechanical engineering what is it
What does a mechanical engineer do?
Technically, mechanical engineering is the application of the principles and problem-solving techniques of engineering from design to manufacturing to the marketplace for any object. Mechanical engineers analyze their work using the principles of motion, energy, and force—ensuring that designs function safely, efficiently, and reliably, all at a competitive cost. One of the most diverse and versatile engineering fields, mechanical engineering is the study of objects and systems in motion. As such, the field of mechanical engineering touches virtually every aspect of modern life, including the human body, a highly complex machine. The role of a mechanical engineer is to take a product from an idea to the marketplace.
Mechanical engineering emerged as a field during the Industrial Revolution in Europe in the 18th century; however, its development can be traced back several thousands of years around the world. It is perhaps the most diverse of engineering disciplines. Mechanical engineers play an important role in the automotive, aerospace, biotechnology, computer what causes an engine to backfire through the carburetor electronics, automation, and manufacturing industries.
They design, develop, build, and test all sorts of mechanical devices, tools, engines and machines. Mechanical engineers are able to design and manufacture everything from small parts like miniature connectors to large machine tools like drill presses. They take a product from start to finish, and design for aesthetics, functionality, and durability. Examples of products that mechanical engineers can design and develop are: transmissions; engine parts; aircraft engines; control systems; prosthetic devices; disk drives; printers; semiconductor tools; sensors; gas turbines; wind turbines; fuel cells; compressors; robots; and machine tools.
Mechanical engineering is one of the oldest and most diverse of the engineering disciplines. It is the branch of engineering that involves the design, production, and operation of machinery by applying physics, engineering, mathematics, and materials science principles.
Mechanical engineering what is the best ar 15 rifle seen in areas such as composites, mechatronics, and nanotechnology, and often overlaps with manufacturing engineering, metallurgical engineering, civil engineering, aerospace engineering, electrical engineering, chemical engineering, industrial engineering, and other engineering disciplines to varying amounts.
In order to design and manufacture mechanical systems, mechanical engineers need to have a deep understanding of mechanics, dynamics, thermodynamics, electricity, and structural analysis. They also need to be able to use computers, CAD computer-aided designand CAM computer-aided manufacturing to produce and analyze their designs, as well as to monitor the quality of products.
Mechanical engineers typically do the following: - Analyze problems to see how a mechanical device might help solve the problem - Design or redesign mechanical devices, creating blueprints so the device can be built - Develop a prototype of the device and test the prototype - Analyze the test results and change the design as needed - Oversee the manufacturing process.
Mechanical engineers use many types of tools, engines, and machines, such as: - Electric generators, internal combustion engines, and steam and gas turbines - Power-using machines, such as refrigeration and air-conditioning - Industrial production equipment, including robots used in manufacturing - Other machines inside buildings, such as elevators and escalators - Machine tools and tools for other engineers - Material-handling systems, such as conveyor systems and automated transfer stations.
Automotive Research Engineers Automotive research engineers try to improve the performance of cars by working to improve traditional features of cars such as suspension, and work on aerodynamics and new possible fuels. Automotive research engineers focus on the development of passenger cars, trucks, buses, motorcycles or off-road vehicles.
They design new products, modify existing ones, troubleshoot, and solve engineering problems. Heating and Cooling Systems Engineers Heat engineering, also known as heat transfer or thermal sciences, is an academic specialty of mechanical engineering.
Heating and cooling systems engineers develop environmental systems systems that keep temperatures and humidity within certain limits for airplanes, trains, cars, computer rooms, and schools. They design test control apparatus as well as equipment, and develop procedures for testing products. They also calculate energy losses for buildings, using equipment such as computers, combustion analyzers, or pressure gauges.
Robotics Engineers A robotics engineer is a behind-the-scenes designer, who is responsible for creating robots and robotic systems that are able to perform duties that humans are either unable or prefer not to complete. Robotics engineers will spend the majority of their time designing the plans needed to build robots, and will also design the processes necessary for the robot to run correctly.
Through their creations, a robotics engineer helps to make jobs safer, easier, and more efficient, particularly in the manufacturing industry. Materials Engineers Materials engineers attempt to solve problems in several different engineering fields, such as mechanical, chemical, electrical, civil, nuclear, and aerospace. They do this by developing, processing, and testing materials in order to create new materials that meet certain mechanical, electrical, and chemical requirements.
Materials engineers study the chemical properties, structures, and mechanical uses of plastics, metals, nanomaterials extremely small substancesceramics, and composites according to the place of usage. Mechanical engineers have distinct personalities. They are curious, methodical, rational, analytical, and logical. Does this sound like you?
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Mechanical engineers are the second largest engineering occupation. They work mostly in engineering services, research and how to install star wars empire at war mods, manufacturing industries, and the how do you know when potatoes are ready to harvest government.
The rest are employed in general-purpose machinery manufacturing, automotive parts manufacturing, management of other companies, and testing laboratories. Mechanical engineers generally work in professional office settings.
They may occasionally visit work sites where a problem or piece of equipment needs their personal attention. Most mechanical engineers work full time, with some working as many as 60 hours or more per week. Mechanical engineers can find employment virtually anywhere where innovation takes place, and are sought out by employers within a variety of industries, such as: aerospace, automotive, chemical, construction, defence, electronics, consumer goods, marine, materials and metals, pharmaceuticals, rail, and utilities.
Mechanical engineers can also work in non-engineering types of jobs, both within and outside of the engineering industry.
From developing a prosthetic leg to a new child's toy, a degree in mechanical engineering gives you a diverse choice of industries and projects you can be a part of. According to the Bureau of Labor Statistics, U. Department of Labor, the largest employers of mechanical engineers are as follows:. Continue reading. Good mechanical engineers are innovators at heart, and truly enjoy complex problem solving.
They have excellent communication skills both oral and written and enjoy working with others as team players. They are excited to be on the cutting edge of technology, learning how to make things work more efficiently.
Mechanical engineers feel a sense of accomplishment when turning their ideas into reality and solving problems that better society. They are naturally curious, strong analytical thinkers, innovative, creative, practical, and have a desire to help people and what time does gamestop close on thursday world around them. Mechanical engineering involves developing and designing products that solve mechanical problems, typically within challenging timeframes.
Often, mechanical engineers develop products for clients who are not familiar with mechanical engineering terminology. They may mechanical engineering what is it to explain complex machines, devices, and ideas to people, therefore strong communication skills are necessary in order to explain things clearly and effectively. Being a mechanical engineer involves a lot of teamwork and having to collaborate with others. Good communication is needed when taking the lead in mechanical design and manufacturing projects, as it often means working how to cook a turkey with aluminum foil other professionals that are not mechanical engineers such as computer scientists and mechanical designers to invent technologies, draw up blueprints, and solve complex problems.
The following are certain sought-after mechanical engineering skills that make for a good mechanical engineer. Some are soft skills and some are technical skills:. Becoming a well-rounded student with real work experience and good academic success is what will give you the optimal chance in landing a great engineering job. Note that top jobs will require both good grades and real engineering experience. Every summer that you're in university, make it a top priority to get an internship; there should be opportunities even for first or second year students.
When going to a job interview, be as prepared as possible by reading up on interviewer's techniques and what questions will typically be asked. How you present yourself at the interview is as important as the experience or grades you have.
It is recommended to write out notes and study them before every interview, even practicing with a friend how to make chain armor on minecraft possible. Depending on what field of work you go into will depend on what your job will be like.
Mechanical engineering is a broad career that deals with mechanical issues, and engineers typically work with mechanical physics, vibrations, forces, rotation, and velocity on a daily basis. In today's world, computers have changed how mechanical engineers do their job, allowing complex analyses to be completed in a matter of seconds versus the days or weeks of hand calculations that were once the norm.
However, mechanical engineers will still use industrial production equipment, material-handling systems, and electric generators to produce a fully refined product, and using calculus and trigonometry is needed when confronted with the more complex and analytical portions of the occupation.
While the careers of a mechanical engineer and a mechanical designer are similar in some ways, there are significant differences in responsibilities, educational requirements and salary. For example:. Mechanical engineers design mechanical products, machines, and systems. Mechanical designers create technical drawings based on the mechanical engineer's specifications and plans.
Mechanical engineers use mathematics and physics in order to determine the best plans and designs for a project. Mechanical designers use CAD programs computer aided design to create detailed drawings.
Mechanical engineers must have at least a bachelor's degree in mechanical engineering. Mechanical designers must complete as associate's degree in drafting. Mechanical engineers are not required to be licensed, however many pursue a professional engineering PE license for future advancement. Mechanical designers are not required to be licensed, however certification is available through The American Drafting Design Association for future advancement.
Mechanical Engineers rank among the least happy careers. Overall they rank in the 43rd percentile of careers for satisfaction scores. What is a Mechanical Engineer? Are you suited to be a mechanical engineer? For example: Mechanical engineers design mechanical products, machines, and systems. Please note that the scores below are percentile rankings rather than overall happiness.
The Mechanical Engineering Blog
Nov 11, · Mechanical engineering is the art of using problem-solving techniques and applying them to the design and manufacturing of an object. Essentially, a mechanical engineer uses creative design and analytical knowledge to turn a concept into something real. Nov 01, · Mechanical engineering is a STEM field related to the design, analysis, testing, and manufacture of objects ranging from children's toys to airplanes. More students study mechanical engineering than any other branch of engineering. Mechanical engineering is a broad career that deals with mechanical issues, and engineers typically work with mechanical physics, vibrations, forces, rotation, and velocity on a daily basis. In today's world, computers have changed how mechanical engineers do their job, allowing complex analyses to be completed in a matter of seconds versus the days or weeks of hand calculations that were once the .
Mechanical engineering is an engineering branch that combines engineering physics and mathematics principles with materials science to design , analyze, manufacture, and maintain mechanical systems. The mechanical engineering field requires an understanding of core areas including mechanics , dynamics , thermodynamics , materials science , structural analysis , and electricity. In addition to these core principles, mechanical engineers use tools such as computer-aided design CAD , computer-aided manufacturing CAM , and product lifecycle management to design and analyze manufacturing plants , industrial equipment and machinery , heating and cooling systems , transport systems, aircraft , watercraft , robotics , medical devices , weapons , and others.
It is the branch of engineering that involves the design, production, and operation of machinery. Mechanical engineering emerged as a field during the Industrial Revolution in Europe in the 18th century; however, its development can be traced back several thousand years around the world.
In the 19th century, developments in physics led to the development of mechanical engineering science. The field has continually evolved to incorporate advancements; today mechanical engineers are pursuing developments in such areas as composites , mechatronics , and nanotechnology.
It also overlaps with aerospace engineering , metallurgical engineering , civil engineering , electrical engineering , manufacturing engineering , chemical engineering , industrial engineering , and other engineering disciplines to varying amounts. Mechanical engineers may also work in the field of biomedical engineering , specifically with biomechanics , transport phenomena , biomechatronics , bionanotechnology , and modelling of biological systems.
The application of mechanical engineering can be seen in the archives of various ancient and medieval societies. The six classic simple machines were known in the ancient Near East. The wedge and the inclined plane ramp were known since prehistoric times.
It relied on animal power reducing the tow on the requirement of human energy. The earliest practical water-powered machines, the water wheel and watermill , first appeared in the Persian Empire , in what are now Iraq and Iran, by the early 4th century BC. In Roman Egypt , Heron of Alexandria c. The medieval Chinese horologist and engineer Su Song — AD incorporated an escapement mechanism into his astronomical clock tower two centuries before escapement devices were found in medieval European clocks.
He also invented the world's first known endless power-transmitting chain drive. During the Islamic Golden Age 7th to 15th century , Muslim inventors made remarkable contributions in the field of mechanical technology. Al-Jazari , who was one of them, wrote his famous Book of Ingenious Devices in and presented many mechanical designs. Al-Jazari is also the first known person to create devices such as the crankshaft and camshaft , which now form the basics of many mechanisms.
During the 17th century, important breakthroughs in the foundations of mechanical engineering occurred in England. Newton was reluctant to publish his works for years, but he was finally persuaded to do so by his colleagues, such as Sir Edmond Halley , much to the benefit of all mankind. Gottfried Wilhelm Leibniz is also credited with creating Calculus during this time period. During the early 19th century industrial revolution, machine tools were developed in England, Germany , and Scotland.
This allowed mechanical engineering to develop as a separate field within engineering. They brought with them manufacturing machines and the engines to power them. Education in mechanical engineering has historically been based on a strong foundation in mathematics and science. Degrees in mechanical engineering are offered at various universities worldwide.
Mechanical engineering programs typically take four to five years of study depending on the place and university and result in a Bachelor of Engineering B. In Italy the course work is based on five years of education, and training, but in order to qualify as an Engineer one has to pass a state exam at the end of the course.
In Greece, the coursework is based on a five-year curriculum and the requirement of a 'Diploma' Thesis, which upon completion a 'Diploma' is awarded rather than a B. In the United States, most undergraduate mechanical engineering programs are accredited by the Accreditation Board for Engineering and Technology ABET to ensure similar course requirements and standards among universities.
In Australia , mechanical engineering degrees are awarded as Bachelor of Engineering Mechanical or similar nomenclature, although there are an increasing number of specialisations. The degree takes four years of full-time study to achieve. To ensure quality in engineering degrees, Engineers Australia accredits engineering degrees awarded by Australian universities in accordance with the global Washington Accord.
Before the degree can be awarded, the student must complete at least 3 months of on the job work experience in an engineering firm. In India, to become an engineer, one needs to have an engineering degree like a B. Tech or B. A similar system is used in Nepal. The master's and engineer's degrees may or may not include research. The Doctor of Philosophy includes a significant research component and is often viewed as the entry point to academia.
Standards set by each country's accreditation society are intended to provide uniformity in fundamental subject material, promote competence among graduating engineers, and to maintain confidence in the engineering profession as a whole. Engineering programs in the U. Universities and Institutes of technology will often combine multiple subjects into a single class or split a subject into multiple classes, depending on the faculty available and the university's major area s of research.
Mechanical engineers are also expected to understand and be able to apply basic concepts from chemistry, physics, Tribology , chemical engineering , civil engineering , and electrical engineering. All mechanical engineering programs include multiple semesters of mathematical classes including calculus , and advanced mathematical concepts including differential equations , partial differential equations , linear algebra , abstract algebra , and differential geometry , among others.
In addition to the core mechanical engineering curriculum, many mechanical engineering programs offer more specialized programs and classes, such as control systems , robotics , transport and logistics , cryogenics , fuel technology, automotive engineering , biomechanics , vibration , optics and others, if a separate department does not exist for these subjects.
Most mechanical engineering programs also require varying amounts of research or community projects to gain practical problem-solving experience. In the United States it is common for mechanical engineering students to complete one or more internships while studying, though this is not typically mandated by the university.
Cooperative education is another option. Future work skills  research puts demand on study components that feed student's creativity and innovation. Mechanical engineers research, design, develop, build, and test mechanical and thermal devices, including tools, engines, and machines.
Mechanical engineers design and oversee the manufacturing of many products ranging from medical devices to new batteries. They also design power-producing machines such as electric generators, internal combustion engines, and steam and gas turbines as well as power-using machines, such as refrigeration and air-conditioning systems. Like other engineers, mechanical engineers use computers to help create and analyze designs, run simulations and test how a machine is likely to work.
Engineers may seek license by a state, provincial, or national government. The purpose of this process is to ensure that engineers possess the necessary technical knowledge, real-world experience, and knowledge of the local legal system to practice engineering at a professional level. In the U. The requirements and steps of this process are set forth by the National Council of Examiners for Engineering and Surveying NCEES , a composed of engineering and land surveying licensing boards representing all U.
In the UK, current graduates require a BEng plus an appropriate master's degree or an integrated MEng degree, a minimum of 4 years post graduate on the job competency development and a peer reviewed project report to become a Chartered Mechanical Engineer CEng, MIMechE through the Institution of Mechanical Engineers.
In most developed countries, certain engineering tasks, such as the design of bridges, electric power plants, and chemical plants, must be approved by a professional engineer or a chartered engineer. In other countries, such as Australia, and the UK, no such legislation exists; however, practically all certifying bodies maintain a code of ethics independent of legislation, that they expect all members to abide by or risk expulsion.
The total number of engineers employed in the U. Of these, , were mechanical engineers The field of mechanical engineering can be thought of as a collection of many mechanical engineering science disciplines.
Several of these subdisciplines which are typically taught at the undergraduate level are listed below, with a brief explanation and the most common application of each. Some of these subdisciplines are unique to mechanical engineering, while others are a combination of mechanical engineering and one or more other disciplines. Most work that a mechanical engineer does uses skills and techniques from several of these subdisciplines, as well as specialized subdisciplines. Specialized subdisciplines, as used in this article, are more likely to be the subject of graduate studies or on-the-job training than undergraduate research.
Several specialized subdisciplines are discussed in this section. Mechanics is, in the most general sense, the study of forces and their effect upon matter. Typically, engineering mechanics is used to analyze and predict the acceleration and deformation both elastic and plastic of objects under known forces also called loads or stresses. Subdisciplines of mechanics include. Mechanical engineers typically use mechanics in the design or analysis phases of engineering.
If the engineering project were the design of a vehicle, statics might be employed to design the frame of the vehicle, in order to evaluate where the stresses will be most intense. Dynamics might be used when designing the car's engine, to evaluate the forces in the pistons and cams as the engine cycles. Mechanics of materials might be used to choose appropriate materials for the frame and engine. Fluid mechanics might be used to design a ventilation system for the vehicle see HVAC , or to design the intake system for the engine.
Mechatronics is a combination of mechanics and electronics. It is an interdisciplinary branch of mechanical engineering, electrical engineering and software engineering that is concerned with integrating electrical and mechanical engineering to create hybrid systems. In this way, machines can be automated through the use of electric motors , servo-mechanisms , and other electrical systems in conjunction with special software. Mechanical systems open and close the drive, spin the CD and move the laser, while an optical system reads the data on the CD and converts it to bits.
Integrated software controls the process and communicates the contents of the CD to the computer. Robotics is the application of mechatronics to create robots, which are often used in industry to perform tasks that are dangerous, unpleasant, or repetitive. These robots may be of any shape and size, but all are preprogrammed and interact physically with the world. To create a robot, an engineer typically employs kinematics to determine the robot's range of motion and mechanics to determine the stresses within the robot.
Robots are used extensively in industrial engineering. They allow businesses to save money on labor, perform tasks that are either too dangerous or too precise for humans to perform them economically, and to ensure better quality. Many companies employ assembly lines of robots, especially in Automotive Industries and some factories are so robotized that they can run by themselves. Outside the factory, robots have been employed in bomb disposal, space exploration , and many other fields.
Robots are also sold for various residential applications, from recreation to domestic applications. Structural analysis is the branch of mechanical engineering and also civil engineering devoted to examining why and how objects fail and to fix the objects and their performance. Structural failures occur in two general modes: static failure, and fatigue failure. Static structural failure occurs when, upon being loaded having a force applied the object being analyzed either breaks or is deformed plastically , depending on the criterion for failure.
Fatigue failure occurs when an object fails after a number of repeated loading and unloading cycles. Fatigue failure occurs because of imperfections in the object: a microscopic crack on the surface of the object, for instance, will grow slightly with each cycle propagation until the crack is large enough to cause ultimate failure.
Failure is not simply defined as when a part breaks, however; it is defined as when a part does not operate as intended. Some systems, such as the perforated top sections of some plastic bags, are designed to break. If these systems do not break, failure analysis might be employed to determine the cause.
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