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69 terms that are used in mechanical engineering

69 terms that are used in mechanical engineering

Here are 69 terms with definitions used in mechanical engineering:

  1. Mechanical Engineering: A discipline of engineering that involves the design, analysis, and manufacturing of mechanical systems.
  2. Thermodynamics: The study of energy and its transformations within systems, including heat transfer and work.
  3. Kinematics: The study of motion without considering its causes, focusing on variables such as position, velocity, and acceleration.
  4. Statics: The branch of mechanics that deals with the equilibrium of stationary bodies under the action of forces.
  5. Dynamics: The branch of mechanics that deals with the motion of bodies under the action of forces.
  6. Force: A push or pull acting upon an object, typically causing a change in its motion.
  7. Torque: The rotational equivalent of force, causes an object to rotate about an axis.
  8. Stress: The force per unit area acting on a material, often causing deformation.
  9. Strain: The ratio of the change in dimension to the original dimension of a material under stress.
  10. Material Science: The study of the properties and applications of materials, including metals, ceramics, polymers, and composites.
  11. Friction: The resistance to motion between two surfaces in contact.
  12. Tribology: The study of friction, wear, and lubrication of interacting surfaces.
  13. Thermal Engineering: The study of heat transfer and energy conversion processes.
  14. Fluid Mechanics: The study of fluids (liquids and gases) and their behavior under various conditions.
  15. Solid Mechanics: The study of the behavior of solid materials under external loads.
  16. Manufacturing Engineering: The branch of engineering focused on the processes used to create products from raw materials.
  17. CAD (Computer-Aided Design): The use of computer software to aid in the creation, modification, analysis, or optimization of designs.
  18. CAM (Computer-Aided Manufacturing): The use of computer software to control machine tools and related manufacturing processes.
  19. CNC (Computer Numerical Control): The automation of machine tools and related processes via computer control.
  20. Finite Element Analysis (FEA): A numerical technique used for solving problems in engineering and mathematical physics.
  21. Vibration: The oscillation of mechanical systems about an equilibrium point.
  22. Frequency: The number of occurrences of a repeating event per unit of time.
  23. Resonance: The condition in which an external force matches the natural frequency of a system, causing it to oscillate with increased amplitude.
  24. Modal Analysis: The study of the dynamic characteristics (natural frequencies and mode shapes) of structures.
  25. Fatigue: The weakening of a material caused by repeated loading and unloading.
  26. Creep: The gradual deformation of a material under a constant load over time.
  27. Young’s Modulus: A measure of the stiffness of a material, describing how much it deforms under stress.
  28. Shear Modulus: A measure of a material’s stiffness in shear deformation.
  29. Poisson’s Ratio: A measure of the ratio of transverse contraction strain to longitudinal extension strain in the direction of stretching force.
  30. Safety Factor: The ratio of the maximum stress a material can sustain to the maximum stress experienced in a particular application.
  31. Kinetic Energy: The energy possessed by a body due to its motion.
  32. Potential Energy: The energy possessed by a body due to its position or configuration relative to other objects.
  33. Work: The product of force and displacement in the direction of the force.
  34. Power: The rate at which work is done or energy is transferred.
  35. Heat Transfer: The process of exchange of thermal energy between physical systems.
  36. Conduction: The transfer of heat through a material without the movement of the material itself.
  37. Convection: The transfer of heat through the movement of a fluid (liquid or gas).
  38. Radiation: The transfer of heat through electromagnetic waves.
  39. Refrigeration: The process of removing heat from a space, substance, or system to lower its temperature.
  40. Thermal Insulation: Material used to reduce the rate of heat transfer.
  41. Reynolds Number: A dimensionless quantity used to predict the flow regime of fluids in various engineering applications.
  42. Bernoulli’s Equation: An equation describing the conservation of energy in fluid flow, often used to analyze fluid dynamics problems.
  43. Laminar Flow: Fluid flow characterized by smooth, parallel layers with minimal mixing.
  44. Turbulent Flow: Fluid flow characterized by irregular, chaotic motion with significant mixing.
  45. Hydrostatics: The study of fluids at rest and the forces acting on them.
  46. Hydrodynamics: The study of fluids in motion and the forces acting on them.
  47. Pump: A device that adds energy to a fluid, increasing its pressure or velocity.
  48. Compressor: A device that increases the pressure of a gas by reducing its volume.
  49. Turbine: A machine that converts the energy of a moving fluid (liquid or gas) into mechanical energy.
  50. Nozzle: A device used to control the direction or speed of fluid flow.
  51. Throttle Valve: A valve used to control the flow of a fluid by varying the size of the passage.
  52. Gauge Pressure: The pressure relative to atmospheric pressure.
  53. Absolute Pressure: The pressure relative to a perfect vacuum.
  54. Vacuum: A space entirely devoid of matter, typically achieved by removing air or other gases.
  55. Hooke’s Law: A principle stating that the force needed to extend or compress a spring by some distance is proportional to that distance.
  56. Gear: A rotating machine part with teeth designed to transmit torque to another gear or device.
  57. Bearing: A machine element that constrains relative motion to only the desired motion, reducing friction between moving parts.
  58. Coupling: A device used to connect two shafts together at their ends for the purpose of transmitting power.
  59. Crankshaft: A shaft with one or more cranks that convert reciprocating motion into rotational motion or vice versa.
  60. Camshaft: A rotating shaft used to operate poppet valves in internal combustion engines.
  61. Clutch: A device used to connect and disconnect a rotating shaft (usually driving and driven) in a power transmission system.
  62. Brake: A device used to slow or stop the motion of a moving part by converting kinetic energy into heat.
  63. Screw: A mechanical device that converts rotational motion to linear motion or vice versa.
  64. Bolt: A threaded fastener with a head that is intended to be tightened or released using a wrench.
  65. Nut: A fastener with a threaded hole used to tighten bolts and screws.
  66. Welding: A fabrication process that joins materials, usually metals or thermoplastics, by causing fusion.
  67. Casting: A manufacturing process in which a liquid material is poured into a mold and allowed to solidify.
  68. Forging: A manufacturing process involving the shaping of metal using localized compressive forces.
  69. Machining: A subtractive manufacturing

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