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| ENGINEERING |
| The blogs contains information related to electrical, mechanical, mechatronics, electronics, aeronautical and computer engineering |
| Language: English |
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| Helical spring |
| 2011-03-28 12:04:59 |
A spring is defined as an elastic body, whose function is to distort when loaded and to recover its original shape when the load is removed. Helical springs.The helical springs are made up of a wire coiled in the form of a helix and are primarily intended for compressive or tensile loads. The cross-section of the wire from which the spring is made may be circular, square or rectangular. Helical compression springs have applications to resist applied compression forces or in the push mode, store energy to provide the "push". Different forms of compression springs are produced. The helical springs are said to be closely coiled when the spring wire is coiled so close that the plane containing each turn is nearly at right angles to the axis of the helix and the wire is subject...
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| Windows 7 |
| 2011-03-26 08:38:48 |
Windows 7 is Microsoft’s latest version of its Windows operating system. Unlike its predecessor, Vista, Windows 7 offers incremental upgrades and is aimed at ensuring maximum compatibility with applications and hardware already supported in windows Vista. System Requirements If you are currently running Windows Vista, then you can easily install Windows 7. Tests performed by various parties have consistently confirmed that Windows 7 outperformed Windows Vista on a similar hardware configuration. If you are coming from previous versions of Windows (pre-Vista), take note of the following suggested hardware requirements: • 1 GHz or faster 32-bit or 64-bit processor • 1 GB RAM (for 32-bit) or 2 GB RAM (for 64-bit) • 16 GB of available disk space (for 32-bit) or 20 GB of available ...
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| Interpolation |
| 2011-03-17 10:18:16 |
Interpolation is a technique of finding new data points within the range of known data points. Linear interpolation is the simplest method of getting values at positions in between the data points. The points are simply joined by straight line segments. It is basically the process of estimating the outcomes in between sampled data points. In linear interpolation a line connecting two points is used to estimate intermediate values Interpolation formula In the graph above you have got the values of x1, x3, y1 and y3. Now you want to interpolate the value of y2 at any given value of x2 so you can use the simple interpolation formula given below Y2 = (x2-x1) (y3-y1) + y1 (x3-x1) Application of interpolation A spring is an elastic object used to store mechanical energy. In case ...
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| ULTRASONIC CLEANING |
| 2011-03-15 12:23:17 |
Ultrasonic cleaning Ultrasonic cleaning is a method of cleaning that uses an ultrasonic device to clean delicate objects or items with intricate parts. Ultrasonic is the science of sound waves above the limits of human audibility. The ultrasonic device uses a cleaning solution which can be fuel (hydrocarbon) and high frequency sound waves to clean the items. Ultrasound ranges in frequency from about 20 to 400 kHz. The most commonly used frequencies for industrial cleaning are those between 20 KHz and 50KHz. Ultrasonic cleaning is employed in a variety of industries especially aeronautical and can be used on many materials and objects of varying sizes and shapes. The mechanical effect of ultrasonic energy can be helpful in both speeding dissolution and displacing particles. Ultrasonic...
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| HONING |
| 2011-03-14 12:37:49 |
These are some operations by which a product receives the final machining stage or finishing operation before final dispatch. These processes or methods remove a very small amount of metal, and hence the surface finish obtained is specified in the ranges of micro finishes. Honing is one of these operations. HONINGThe process of finishing ground surfaces to a high degree of accuracy and smoothness with abrasive blocks applied to the surface under a light controlled pressure and with a combination of rotary and reciprocating motions. Honing is a controlled, low-speed sizing and surface finishing process in which stock is abraded by the shearing action of a bonded abrasive honing stick. In honing, simultaneous rotating and reciprocating action of the stick results in a characteristic cros...
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| The Turbine Flow Meter and its Calibration |
| 2011-03-14 09:45:09 |
The Turbine Flow Meter and its Calibration Turbine MetersA turbine meter consists of a practically friction-free rotor pivoted along the axis of the meter tube and designed in such a way that the rate of rotation of the rotor is proportional to the rate of flow of fluid through the meter. This rotational speed is sensed by means of an electric pick-off coil fitted to the outside of the meter housing. The only moving component in the meter is the rotor, and the only component subject to wear is the rotor bearing assembly. However, with careful choice of materials (e.g., tungsten carbide for bearings) the meter should be capable of operating for up to five years without failure. There are several characteristics of turbine flow meters that make them an excellent choice for some a...
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| INDUSTRIAL LIGHTNING SYSTEM |
| 2011-03-08 23:29:10 |
INDUSTRIAL LIGHTNING SYSTEMLighting is an essential service in all the industries. The power consumption by the industrial lighting varies between 2 to 10% of the total power depending on the type of industry. Innovation and continuous improvement in the field of lighting, has given rise to tremendous energy saving opportunities in this area. Lighting is provided in industries, commercial buildings, indoor and outdoor for providing comfortable working environment. The primary objective is to provide the required lighting effect for the lowest installed load i.e highest lighting at lowest power consumption.Lighting Principles and Terminology Illumination The distribution of light on a horizontal surface. The purpose of all lighting is to produce illumination.Circuit WattsIt is the total po...
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| STRESS |
| 2011-03-08 23:08:52 |
STRESS Stress is the internal resistance of a material to the distorting effects of an external force or load. Stress, s = f/a When a metal is subjected to a load (force), it is distorted or deformed, no matter how strong the metal or light the load. If the load is small, the distortion will probably disappear when the load is removed. The intensity, or degree, of distortion is known as strain. If the distortion disappears and the metal returns to its original dimensions upon removal of the load, the strain is called elastic strain. If the distortion disappears and the metal remains distorted, the strain type is called plastic strain. Stress is the internal resistance, or counterforce, of a material to the distorting effects of an ex...
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| TRANSFORMERS |
| 2011-03-08 11:47:10 |
TRANSFORMERTransformer is used to convert electrical energy of higher voltage (usually 11-22-33kV) to a lower voltage (250 or 433V) with frequency identical before and after the transformation. Its main application is mainly within suburban areas, public supply authorities and industrial customers. With given secondary voltage, distribution transformer is usually the last in the chain of electrical energy supply to households and industrial enterprises.INTRODUCTION A transformer has no internal moving parts, and it transfers energy from one circuit to another by electromagnetic induction. External cooling may include heat exchangers, radiators, fans, and oil pumps. Radiators and fans are evident in figu...
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| Introduction to Jet Engines |
| 2011-03-08 11:34:59 |
Introduction to Jet EnginesAn aircraft engine, or power plant, produces thrust to propel an aircraft. Reciprocating engines and turboprop engines work in combination with a propeller to produce thrust. Turbojet and turbofan engines produce thrust by increasing the velocity of air flowing through the engine. All of these power plants also drive the various systems that support the operation of an aircraft.Turbine EnginesAn aircraft turbine engine consists of an air inlet, compressor, combustion chambers, a turbine section, and exhaust. Thrust is produced by increasing the velocity of the air flowing through the engine. Turbine engines are highly desirable aircraft power plants. They are characterized bySmooth operationHigh power-to-weight ratioReadily available jet fuel.Types of Turbine Eng...
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