Mechanical engineering is a discipline of engineering that applies the principles of engineering, physics and materials science for analysis, design, manufacturing, and maintenance of mechanical systems. It is the branch of engineering that involves the production and usage of heat and mechanical power for the design, production, and operation of machines and tools. Mechanical Engineering is used in contributing to the design of things such as automobiles, aircraft, and other vehicles, heating and cooling systems, household appliances, industrial equipment and machinery.
Adjustable Speed Drives - DC Drives - Principles of Operation - DC Drive Types - DC Motor Control Characteristics - AC Drives - Principles of Operation - AC Controller Types - AC Motor Control Characteristics - Motor Selection - AC vs. DC Drive Comparison - Basic Mechanics - Other Application Factors - Measuring Machine Torque
Free tutorials and resources for those studying engineering from degree level to certificate level. We specialise mainly in Mechanical Engineering and provide material in Thermodynamics, Fluid Mechanics, Mechanics of Solids, Materials, Fluid Power, Mechatronics, Control, Electrical, Electronics and Maths.
Choice of materials for a machine element depends very much on its properties, cost, availability and such other factors. It is therefore important to have some idea of the common engineering materials and their properties before learning the details of design procedure.
Computer-aided design (CAD) is the use of computer systems to assist in the creation, modification, analysis, or optimization of a design. CAD software is used to increase the productivity of the designer, improve the quality of design, improve communications through documentation, and to create a database for manufacturing Computer-aided manufacturing (CAM) is the use of computer software to control machine tools and related machinery in the manufacturing of workpieces CAM is now a system used in schools and lower educational purpoeses CAM is a subsequent computer-aided process after computer-aided design (CAD) and sometimes computer-aided engineering (CAE)
This field is the study of small mechanical devices and systems. The Field is called by a wide variety of names:
Micro Electro Mechanical Systems (MEMS), Micro Mechanics, Micro Systems Technology (MST), etc.
The treatment for failure to ventilate is to increase the patient’s alveolar ventilation, that is the rate and depth of breathing, either by reversing the cause or by using mechanical ventilation; invasively or non-invasively.
The tutorials are free to download and print
EC Cert Level, Mathematics C101, Engineering Materials C102, Engineering Science C103, Mech. and Struct EngC105, Ther, Fluid and Pr Eng C106
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* * * * * * Lubrication Information * * * * * *
Lubricants - Tribology-ABC - Machine Lubrication
The type of lubricant used has a significant impact on the lifetime performance and reliability of a machine. Optimal lubricant selection and management depends on understanding the lubrication regime (i.e., boundary, mixed or hydrodynamic lubrication), lubricant properties, established classifications, maintenance plans and an ability to interpret and apply the producer’s product specifications to the equipment
When properly selected and applied, gear lubricants reduce friction and wear, help to prevent corrosion, reduce operating noise, improve heat transfer and facilitate removal of abrasive wear particles from the contact areas of the gear tooth surfaces
Hydraulic fluids are required to provide lubrication of contact surfaces within system components, sealing of equipment with tight clearances and removal of heat generated within the system. It must also protect system components against rust, oxidation and corrosion.
Chapter 7. Lubricant Additives from EM 1110-2-1424 U.S. Army Corps of Engineers "Lubricants and Hydraulic Fluids"
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* * * * * * Machine Tools Information * * * * * *
A Machine Tool is a machine for shaping or machining metal or other rigid materials, usually by cutting, boring, grinding, shearing or other forms of deformation. Machine tools employ some sort of tool that does the cutting or shaping. Numerical control (NC) is the automation of machine tools that are operated by abstractly programmed commands encoded on a storage medium, as opposed to controlled manually via handwheels or levers, or mechanically automated via cams alone. In modern CNC systems, end-to-end component design is highly automated using computer-aided design (CAD) and computer-aided manufacturing (CAM) programs. The programs produce a computer file that is interpreted to extract the commands needed to operate a particular machine.
Machine alignment and calibration starts with being level, flat, straight and square. Machine “earth” level is an important benchmark if you want to check yourself in the future without the need of a laser system. Straightness of travel, including the components pitch, yaw, & roll come before machine tool squareness. Laser calibration of positioning accuracy completes the picture with rotary axes laser calibrated as well.
A Ballbar is one of the most powerful all-around tools for CNC evaluation and is the single best device for checking the contouring accuracy of machine tools. Ballbar tests show how two axes work together to move the machine in a circular path. In a perfect machine, two axes would make a perfect circle. The Ballbar test measures any deviation the machine makes from a perfect circle and displays the data in a polar plot format. By analyzing the data, errors such as backlash, servo-error, periodic error, scale mismatch and squareness can be determined
Computer-aided design (CAD) is the use of computer systems to assist in the creation, modification, analysis, or optimization of a design. CAD software is used to increase the productivity of the designer, improve the quality of design, improve communications through documentation, and to create a database for manufacturing
Computerized maintenance management systems (CMMS)
CMMS(computerized maintenance management system) is a software application for industrial maintenance departments to manage work orders, preventative maintenance, parts inventory, labor, and equipment.
This Database package in Ms Access 2002 with user friendly options for dataentry and report generation for Equipemnt failure analysis as well as defect entry and rectification reports. The database format is open and the user can export the data to their future CMMS packages without any hurdle using simple programming
DownTime Manager keeps track of your equipment downtime.Use it for industry,fleet maintenance computers,etc.Track your downtime by machine and view charts and find the highest Day of week for the year that downtimes occur,or by the month.By right clicking grid you can access a menu for very detailed tracking.DownTime Manager is a great help for predictive and preventive maintenance
This book gives an extensive treatment of some of the advanced areas of mathematics that have applications in various fields of engineering, particularly as tools for computer-based system modelling, analysis and design.
Building on the foundations laid in the companion text Modern Engineering Mathematics, this book gives an extensive treatment of some of the advanced areas of mathematics that have applications in various fields of engineering, particularly as tools for computer-based system modelling, analysis and design.