Introduction
Mechanical engineering is a field of engineering concerned with the study and application of mechanics, dynamics, and energy to design, analyze, and manufacture machines and mechanical systems. It is the branch of engineering and applied sciences which deals with the design, construction, operation, and use of machines, and the application of forces, such as mechanical force, thermal force, and aerodynamic force. Mechanical engineering is an important field which affords a wide range of career opportunities.
Mechanical Design
Mechanical design is the process of solving problems through the use of mechanical engineering principles. Mechanical engineers are trained in a range of disciplines, such as thermodynamics, fluid mechanics, materials science and engineering, and control theory. They use this knowledge to create and analyze practical methods for mechanics, machines, and systems. Mechanical engineers are responsible for the development of new products and processes, as well as designing and optimizing existing ones.
In order to properly design a new machine or process, engineers must receive detailed specifications from the customer and then use their knowledge and research to determine the best methods and components to use. Once the design is finalized, they will create detailed plans, drawings and schematics, as well as use Computer-Aided Design and Manufacturing (CAD/CAM) software to develop the models.
Mechanical Assembly
Once the plans and drawings have been completed, mechanical engineers will construct mechanical assemblies, or subassemblies, which are components or assemblies that are used in machines or mechanical systems. They may be responsible for assembling the parts together or may be contracted or employed by companies that specialize in these activities. Furthermore, mechanical engineers may be involved in the process of repairing and maintaining the mechanical assemblies.
Finite Element Analysis
Finite Element Analysis (FEA) is an invaluable tool in the design and optimization of mechanics, machines, and systems. It is a numerical technique for solving engineering problems, and is commonly used in mechanical engineering. FEA utilizes complex algorithms to solve complex mathematical equations and analyze the behavior of materials and components under various loading conditions. The results of FEA models and simulations can be used to predict the performance of components and systems under actual use.
Machine Dynamics
Machine dynamics is a branch of mechanical engineering which deals with the study and analysis of dynamic systems. Machine dynamics is used to improve the efficiency and performance of machines, as well as to analyze the behavior and process of their systems. It is also used to identify potential problems and hazards, and to confirm machine operation performance prior to implementation.
Thermal Engineering
Thermal engineering is a specialized area of engineering which studies how energy is transferred from one medium to another. It is primarily concerned with understanding the behavior of heat and energy transfer and how to use this knowledge to create efficient and reliable systems. Common applications for thermal engineering include the design and analysis of heat transfer, power systems, and refrigeration systems.
Control Systems
Control systems are the systems used to control and monitor the functioning of machines and mechanical systems. Control systems are designed to provide a reliable, repeatable, and safe operation. Control engineers are responsible for maintaining and designing systems that measure, compute, and regulate the operation of machines and processes.
Conclusion
Mechanical engineering is a field which encompasses a wide range of disciplines, from design and assembly to machine dynamics and control systems. It is a highly educated, technical field which offers a wealth of opportunities and career paths. The work of mechanical engineers is key in the development and design of new products and machines, as well as in the maintenance and optimization of existing systems.
