engineering or mechanical engineering? procsi 10-07-08 gilbert haddad [email protected]
TRANSCRIPT
Outline
- Introduction
- Engineering Achievements
- Mechanical Engineering and Our World
- Disciplines of Mechanical Engineering
- Conclusion
- Brain teaser
Introduction
Engineering is:
“ The profession in which a knowledge of the mathematical and natural sciences gained by study, experience, and practice is applied with judgment to develop ways to use economically the materials and forces of nature for the benefit of mankind “
“ The application of science to the needs of humanity”
“The creative application of scientific principles to design or develop structures, machines, apparatus, or manufacturing processes, or works utilizing them singly or in combination; or to construct or operate the same with full cognizance of their design; or to forecast their behavior under specific operating conditions; all as respects an intended function, economics of operation and safety to life and property”
“Engineering is the discipline and profession of applying scientific knowledge and utilizing natural laws and physical resources in order to design and implement materials , structures, machines, devices, systems, and processes that realize a desired objective and meet specified criteria”
Greatest Engineering Achievements of the 20th Century
• Electrification• Automobile• Airplane• Water supply and
distribution• Electronics• Radio and Television• Agricultural
Mechanization• Computers• Telephone• Air Conditioning and
Refrigeration
• Highways• Spacecraft• Internet• Imaging• Household Appliances• Health Technologies• Petroleum and
Petrochemical Technologies
• Laser and Fiber Optics• Nuclear Technologies• High-performance
Materials
Engineering Disciplines
Aeronautics and astronautics
Agricultural engineering
Biological engineering
Chemical engineering
Civil engineering
Electrical engineering
Engineering science
Financial engineering
Fire protection engineering
Industrial engineering
Mechanical engineeringMaterials engineeringMilitary engineerNuclear engineeringOcean engineeringOptical engineeringPetroleum engineeringPlanetary engineeringSoftware engineeringSocial engineeringStellar engineeringTextile engineering
Mechanical Engineering and Our World
Mechanical engineering is an engineering discipline that involves the application of principles of physics for analysis, design, manufacturing, and maintenance of mechanical systems.
Mechanical engineers use the core principles as well as other knowledge in the field to design and analyze motor vehicles, aircraft, heating and cooling system, watercraft, manufacturing plants, industrial equipment and machinery, robotics, medical devices and MORE!
Mechanical Engineering
Some core subjects in mechanical engineering are:
-Statics and dynamics-Strength of materials -Solid dynamics-Instrumentation and measurement-Thermodynamics, heat transfer, energy conversion, and HVAC-Fluid mechanics, and fluid dynamics-Mechanism design (including kinematics and dynamics)-Manufacturing processes-Hydraulics and pneumatics-Engineering design-Mechatronics and control theory- Other
A combination of these core subjects, leads toresearch in engineering: Creating solutions for humans needs!
Disciplines of Mechanical Engineering
Thermal Science:
The discipline that encompasses:
-Thermodynamics
- Fluid mechanics
- Heat transfer
Dynamics Vibrations and Acoustics:
Characterization of mechanical components, structures, systems and materials, to support product development, safety, weight minimization and component optimization for aerospace, automotive, electronics and general manufacturing.
Disciplines of Mechanical Engineering
Mechatronics, Robotics and Automation:
It is the science and technology of sensors and robots; their manufacture, design and application
Disciplines of Mechanical Engineering
Robots have various applications:
- Industrial robots
- Aerospace robots
- Healthcare robots
- Human-like robots
- Military robots
Robot
Design and Manufacturing:
It includes the design and manufacturing of machines, systems, products, mechanisms and process.
Disciplines of Mechanical Engineering
Polymer Engineering:
Focuses on advancing technologies for a wide range of polymer and polymeric composite manufacturing processes.
Disciplines of Mechanical Engineering
Biomechanical Engineering:
It deals with the development of fundamental and applied engineering knowledge related to biomechanical systems, and the application of engineering expertise towards the design and development of leading-edge technologies to help people with disabilities.
Disciplines of Mechanical Engineering
Disciplines of Mechanical Engineering
Energy Engineering
Studies different types of energy (electrical, mechanical, fuel, …) to implement efficient systems that can be used
Boom of Green Energy
Computer Aided Engineering
Apply mathematical theories, computationally efficient algorithms, and other tools for modeling, design, and simulation of a wide range of engineering artifacts and processes. Some focus areas can be mechanical, micro/nano-mechanical, electro-mechanical, thermal, fluid, and other multi-disciplinary and multi-scale systems.
Disciplines of Mechanical Engineering
Conclusion
Mechanical engineers are professional problem-solvers
who strive to find practical solutions that will benefit people
or society.
Brain teaser
The drive from Oakland to Pinewood: I covered the uphill distance of 70 Km at 42 km per hour. The return journey from Pinewood to Oakland was downhill, and I managed to drive at 56 km per hour. What was my average speed for the entire journey?
Brain teaser
Average speed = Total distance / Total time
Total distance = 2 × 70km.
Time for uphill journey (from Oakland to Pinewood) = 70 / 42 hours.
Time for downhill journey (from Pinewood to Oakland) = 70 / 56 hours.
Total time = (70 / 42) + (70 / 56)
Average speed = Total distance / Total time = 48km per hour.
The common mistake made in solving this problem is to assume the average speed to be the arithmetic mean, i.e., (42 + 56)/ 2 = 49 km per hour.