Archive for the ‘OTHERS’ category

Mechatronics / Introduction

September 16, 2011

Mechatronics is a word originated in Japan in 1980s to denote the combination of technologies which go together to produce industrial robots.

A formal definition of Mechatronics is “the synergistic integration of Mechanics and Mechanical Engineering, Electronics, Computer technology, and IT to produce or enhance products and systems.’’

The various fields that make up Mechatronics is shown in Fig

01-what is Mechatronics-Introduction-Mechanical and Eletronics

Examples of such systems are

  • Computers,
  • Disk drives,
  • Photocopiers,
  • Fax machines,
  • VCR,
  • Washing machines,
  • CNC machine tools,
  • Robots, etc.

Today’s modern cars are also mechatronics product with the usage of electronic engine management system, collision detection, global positioning system, and others.

01-mechatronics-design-combination of mechanical and electronics

The concept of mechatronics is very important today to meet the customers’ ever increasing demands and still remain competitive in the global market. Very often a mechanical engineer without the mechatronics background is considered equivalent to a mechanical engineer without the engineering drawing knowledge.

Mechatronics requires thinking products and processes so transverse. Mechatronics is “burst the walls, with a steering matrix. The pilot at the highest level of the enterprise is essential in this context, to afford in front needs to be implemented.

The design should no longer be sequentially: the mechatronics approach requires thinking about the product as a whole (all skill areas at a time) and not by separating the mechanical part, then electronics, then the sensor – actuators and computers at risk to achieve additional cost prohibitive.

01-robot-arm-future-mechatronics

The project manager must master the various areas and not be an expert in one of mechatronics technology: It was necessary to avoid watching the draft with an eye mechanics or electronics. The pilot is here, as elsewhere, the role of a conductor, not a virtuoso.

The phases of integration are sensitive, such that an electronic assembly in a machine shop (or vice versa). There are telescoping and areas of project management and competence, which involves work that is done jointly, to ultimately obtain not a purely mechanical or purely electronic, but a set that combines the advantages of 2, which can not be separated.

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Mechanical Engineering-What is It? / What Mechanical Engineers do?

September 16, 2011

Mechanical engineers design and develop everything you think of as a machine – from supersonic fighter jets to bicycles to toasters. And they influence the design of other products as well – shoes, light bulbs and even doors. Many mechanical engineers specialize in areas such as manufacturing, robotics, automotive/transportation and air conditioning. Others cross over into other disciplines, working on everything from artificial organs to the expanding field of nanotechnology. And some use their mechanical engineering degree as preparation for the practice of medicine and law. The mechanical engineer may design a component, a machine, a system or a process. Mechanical engineers will analyze their design using the principles of motion, energy, and force to insure the product functions safely, efficiently, reliably, and can be manufactured at a competitive cost.

Mechanical engineers  work in the automotive, aerospace, chemical, computer, communication, paper, and power generation  industries. Mechanical engineers will be found in virtually any manufacturing industry. Increasingly, mechanical engineers are needed in the environmental and bio-medical fields. Indeed virtually every product or service in modern life has probably been touched in some way by a mechanical engineer.

Design and Dynamic Systems Area

02-design-dynamics-crash-analysis-vibration and noise

This area emphasizes modeling and control of dynamic processes in engineering systems. Current research activity is in engineering acoustics and noise control, NVH, vibrations and modal analysis, system modeling and identification, control systems, system dynamics, computer simulation of material-forming processes, off-line programming of robots, automobile crashworthiness, computer-aided strain analysis, software sensor development, optimal control of automated manufacturing, application of artificial intelligence in interactive design software, environmentally conscious design, and design of orthotic devices for gait rehabilitation.

Energy Thermo-Fluids Area

02-thermo-fluids-mechanics-computational fluid dynamics

Emphasizes thermodynamics, heat transfer, and fluid mechanics. Current research activity is in combustion processes, internal combustion engines, transmissions, heat and mass transfer, fluid mechanics, computational fluid dynamics, and emissions and air quality control.

Manufacturing/Industrial Area

02-manufacturing-car-wit computer aided design

Current research activity is in metal cutting, metal forming (with specific thrusts in sheet metal deformation), grinding, tribological aspects of forming and machining, computer-aided design of dies for forming metals and polymers, robotics and automation, metrology, data-dependent system analysis, industrial engineering, and environmentally conscious manufacturing. The manufacturing systems engineering program emphasizes the integration of design, materials, computers, and manufacturing with an exposure to business and engineering administration, and is particularly suitable for those who have a bachelor’s degree in mechanical, electrical, metallurgical, or chemical engineering.

Solid Mechanics Area

02-solidmechanics-research-study on material science

Emphasizes topics in mechanics and materials science. Current research activity is in mechanics of materials with microstructure, experimental mechanics, plasticity, wave propagation and dynamic fracture, biomechanics, micromechanics, ceramics, crashworthiness, polymer matrix composites, and computational mechanics.

Mechanical Engineers study:

  • Statics: How are forces transmitted to and throughout a structure?
  • Dynamics: What are the velocities,accelerations and resulting forces for a system in motion?
  • Kinematics: How does a mechanism behave as it moves through its range of motion?
  • Strength of Materials: Is the component strong enough to support the loads? Is it stiff enough?
  • Materials Science: Which material has the optimum properties?
  • Thermodynamics : How does energy get converted to useful power? What are the losses?
  • Fluid Mechanics: What is the pressure drop due to the fluid flow? What are the aerodynamic drag forces?
  • Heat Transfer: How do you calculate heat transfer rates from temperature data?  How do you predict the temperature distributions?
  • Manufacturing: What manufacturing processes do you select?
  • Machine Design: How do you synthesize all of the above?
  • Electrical Circuits: How do you integrate electronic controls into your design?
  • Laboratory Methods: How do you make and interpret both thermal and mechanical measurements?
  • Vibrations: How do you predict and control vibrations?
  • Engineering Economics: How do you estimate manufacturing costs?

02-Design-Team-FordVerve

Mechanical Engineers can take the following career paths:

  • Industry (the most common)
  • Graduate School
  • Entrepreneur/Business Owner
  • Research Labs
  • Military
  • Government
  • Preparation for other Professions (law, medicine, teaching, etc.)
Mechanical Engineers are engaged in the following activities:

  • Conceptual design
  • Analysis
  • Presentations and report writing
  • Multidisciplinary teamwork
  • Concurrent engineering
  • Benchmarking the competition
  • Project management
  • Prototyping
  • Testing
  • Measurements
  • Data Interpretation
  • Developmental design
  • Research
  • Work with suppliers
  • Sales
  • Consulting
  • Customer service
Skills that help Mechanical Engineers to be successful in their careers:

  • Problem solving (The essence of engineering!)
  • Creativity
  • Hands-on understanding
  • Networking
  • Leadership/conflict resolution
  • Knowledge management
Mechanical Engineering careers can have the following stages:

  • Early years – technical work most important
  • Middle years – project management and product expert knowledge (still technical) become more important.
  • Senior years – corporate, market, and global understanding become important.
  • Communication and team skills remain important throughout.

Mechanical Engineer

September 16, 2011

What is the Mechanical Engineer?

01-mechanical-engineer-technology

Mechanical engineering is a broad field of engineering that involves the use of physical principles for analysis, design, manufacture and maintenance of mechanical systems. Traditionally, it has been the branch of engineering that through the application of physical principles has enabled the creation of useful devices, as tools and machines.

Mechanical engineers use principles such as heat, force and the conservation of mass and energy to analyze static and dynamic physical systems, helping to design objects. Mechanical Engineering is the branch of machinery, equipment and facilities bearing in mind ecological and economic aspects for the benefit of society. To do their job, mechanical engineering analyze needs, formulate and solve technical problems through an interdisciplinary, and relies on scientific developments, translating into elements, machines, equipment and facilities to provide adequate service through the rational use and efficient use of available resources.

01-mechanical engineer-technology-projects

Engineering is dedicated to designing, building, negotiation and component maintenance. It required new devices with complex functions in the movement or that withstand large forces, so it was necessary that this new discipline to study the movement and balance. It was also necessary to find a new way of running the machines as originally used by human or animal power. The use of machines that run on energy from the steam, coal, gas and electricity brought great progress.