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Thank you for understanding! 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. 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.
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 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.
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. The total number of engineers employed in the U. Of these, , were mechanical engineers Many mechanical engineering companies, especially those in industrialized nations, have begun to incorporate computer-aided engineering CAE programs into their existing design and analysis processes, including 2D and 3D solid modeling computer-aided design CAD.
This method has many benefits, including easier and more exhaustive visualization of products, the ability to create virtual assemblies of parts, and the ease of use in designing mating interfaces and tolerances.
Other CAE programs commonly used by mechanical engineers include product lifecycle management PLM tools and analysis tools used to perform complex simulations. Analysis tools may be used to predict product response to expected loads, including fatigue life and manufacturability. Using CAE programs, a mechanical design team can quickly and cheaply iterate the design process to develop a product that better meets cost, performance, and other constraints. No physical prototype need be created until the design nears completion, allowing hundreds or thousands of designs to be evaluated, instead of a relative few.
In addition, CAE analysis programs can model complicated physical phenomena which cannot be solved by hand, such as viscoelasticity, complex contact between mating parts, or non-Newtonian flows. As mechanical engineering begins to merge with other disciplines, as seen in mechatronics , multidisciplinary design optimization MDO is being used with other CAE programs to automate and improve the iterative design process.
MDO tools wrap around existing CAE processes, allowing product evaluation to continue even after the analyst goes home for the day. They also utilize sophisticated optimization algorithms to more intelligently explore possible designs, often finding better, innovative solutions to difficult multidisciplinary design problems.
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. 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. 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 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: 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. Structural analysis is often used by mechanical engineers after a failure has occurred, or when designing to prevent failure.
Engineers often use online documents and books such as those published by ASM  to aid them in determining the type of failure and possible causes. Once theory is applied to a mechanical design, physical testing is often performed to verify calculated results. Structural analysis may be used in an office when designing parts, in the field to analyze failed parts, or in laboratories where parts might undergo controlled failure tests. Thermodynamics is an applied science used in several branches of engineering, including mechanical and chemical engineering.
At its simplest, thermodynamics is the study of energy, its use and transformation through a system. As an example, automotive engines convert chemical energy enthalpy from the fuel into heat, and then into mechanical work that eventually turns the wheels.
Thermodynamics principles are used by mechanical engineers in the fields of heat transfer , thermofluids , and energy conversion. Mechanical engineers use thermo-science to design engines and power plants , heating, ventilation, and air-conditioning HVAC systems, heat exchangers , heat sinks , radiators , refrigeration , insulation , and others.
Drafting or technical drawing is the means by which mechanical engineers design products and create instructions for manufacturing parts. A technical drawing can be a computer model or hand-drawn schematic showing all the dimensions necessary to manufacture a part, as well as assembly notes, a list of required materials, and other pertinent information.
Drafting has historically been a two-dimensional process, but computer-aided design CAD programs now allow the designer to create in three dimensions.
Optionally, an engineer may also manually manufacture a part using the technical drawings. However, with the advent of computer numerically controlled CNC manufacturing, parts can now be fabricated without the need for constant technician input. Manually manufactured parts generally consist spray coatings , surface finishes, and other processes that cannot economically or practically be done by a machine.
Drafting is used in nearly every subdiscipline of mechanical engineering, and by many other branches of engineering and architecture. Mechanical engineers are constantly pushing the boundaries of what is physically possible in order to produce safer, cheaper, and more efficient machines and mechanical systems.
Some technologies at the cutting edge of mechanical engineering are listed below see also exploratory engineering. Micron-scale mechanical components such as springs, gears, fluidic and heat transfer devices are fabricated from a variety of substrate materials such as silicon, glass and polymers like SU8. Examples of MEMS components are the accelerometers that are used as car airbag sensors, modern cell phones, gyroscopes for precise positioning and microfluidic devices used in biomedical applications.
The innovative steady state non-fusion welding technique joins materials previously un-weldable, including several aluminum alloys. It plays an important role in the future construction of airplanes, potentially replacing rivets. Current uses of this technology to date include welding the seams of the aluminum main Space Shuttle external tank, Orion Crew Vehicle test article, Boeing Delta II and Delta IV Expendable Launch Vehicles and the SpaceX Falcon 1 rocket, armor plating for amphibious assault ships, and welding the wings and fuselage panels of the new Eclipse aircraft from Eclipse Aviation among an increasingly growing pool of uses.
Composites or composite materials are a combination of materials which provide different physical characteristics than either material separately. Composite material research within mechanical engineering typically focuses on designing and, subsequently, finding applications for stronger or more rigid materials while attempting to reduce weight , susceptibility to corrosion, and other undesirable factors.
Carbon fiber reinforced composites, for instance, have been used in such diverse applications as spacecraft and fishing rods. Mechatronics is the synergistic combination of mechanical engineering, electronic engineering , and software engineering. The discipline of mechatronics began as a way to combine mechanical principles with electrical engineering. Mechatronic concepts are used in the majority of electro-mechanical systems. At the smallest scales, mechanical engineering becomes nanotechnology—one speculative goal of which is to create a molecular assembler to build molecules and materials via mechanosynthesis.
For now that goal remains within exploratory engineering. Areas of current mechanical engineering research in nanotechnology include nanofilters,  nanofilms,  and nanostructures,  among others.
Finite Element Analysis is a computational tool used to estimate stress, strain, and deflection of solid bodies. It uses a mesh setup with user-defined sizes to measure physical quantities at a node. The more nodes there are, the higher the precision. In the recent times, cloud simulation platforms like SimScale are becoming more common. Other techniques such as finite difference method FDM and finite-volume method FVM are employed to solve problems relating heat and mass transfer, fluid flows, fluid surface interaction, etc.
Biomechanics is the application of mechanical principles to biological systems, such as humans , animals , plants , organs , and cells. Biomechanics is closely related to engineering , because it often uses traditional engineering sciences to analyze biological systems. In the past decade, reverse engineering of materials found in nature such as bone matter has gained funding in academia.
The structure of bone matter is optimized for its purpose of bearing a large amount of compressive stress per unit weight.
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Archived Mechanical Engineering Courses Some prior versions of courses listed above have been archived in OCW's [email protected] repository for long-term access and preservation. Links to archived prior versions of a course may be found on that course's "Other Versions" tab. The grado33.ml degree is a coursework-only degree which is designed to offer extreme flexibility so students can choose courses from any of our graduate-level offerings in biomechanics, controls and dynamics, fluid mechanics and thermal sciences, nanomechanics and nanomanufacturing, and solid mechanics and materials.
Mechanical Engineering Coursework Help mechanical engineering coursework help Mechanical engineering technicians help mechanical engineers design, develop, test, and manufacture mechanical devices, including tools, engines, and machines. They We Offer Required PDH Online Fast, Easy & Price GuaranteedEngineering Management. Revised November 8, Mechanical Engineering Coursework. School of Mechanical, Industrial and Manufacturing Engineering. Oregon State University.