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If you really want to see how this is done, try Googling "Chadwick Helmuth Strobex". They make machines to balance rotors and propellers.
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How do you build a centrifuge?
To build a centrifuge you first need to decide what G force you need to generate. This is a function of the distance that the unit to be centrifuged is from the center axis and the rotational frequency (RPM). A major difficult you might run into is balancing the unit you make. The basic components of a centrifuge are the motor, case, rotor, and shield. The rotor holds the tubes, the case holds the motor in place and is a sturdy base, the shield protects you from any debri that could be thrown from an unbalanced rotor. If you MUST build a centrifuge you will need to learn to machine an accurate and balanced rotor. You are really just better off buying one. If you are in search of a cheap and simple centrifuge for playing with, use some tubing and an egg beater like these students did: http://www.rsc.org/delivery/_ArticleLinking/DisplayHTMLArticleforfree.cfm?JournalCode=LC&Year=2008&ManuscriptID=b809830c&Iss=Advance_Article
What is needed to generate AC electricity?
An AC generator (Alternator). A rotor is turned into a magnet by what is known as 'excitation' current. The rotor then induces AC current in the stator windings as it is rotated within it. This is AC, due to the fact that the rotor has a north and south pole, which alternately induces current in the stator windings. The exitation current is provided to the rotor via slip rings. Controlling this excitation current will also control the output power by suitable control circuitry. This is the same principle, whether it is a small domestic generator, a power station, a wind turbine, or a car alternator.
Function and operation of rotor brake system?
With a rotor braking system there is a curved brace with lining that fits inside the wall of a round drum. When the brake pedal is pressed, hydraulic fluid goes through the line and makes the brace with the lining press against the side of the drum until the drum stops turning.
List and explain the different types of parasitic drag?
Parasite dragThis drag is created by the uneven surface of the aircraft, like opening, obstruction on the skin of the fuselage and wings. There are different types of parasitic drags, these types of drags are on the following:Form dragSkin frictioninterference dragForm dragProfile drag is also known as form drag. Profile drag is the drag produced by the action of the rotor blades being forced into the oncoming airflow. If a rotor blade was cut in half from the front of the blade (leading edge) to the rear of the blade (trailing edge), the resulting shape when looking at the cross-section is considered to be the blade "profile". For a rotor blade to produce lift, it must have an amount of thickness from the upper skin to the lower skin, which is called the "camber" of the blade. In general terms the greater the camber, the greater the profile drag.This is because the oncoming airflow has to separate further to pass over the surfaces of the rotor blade. The blade profile for a given helicopter has been designed as a compromise between producing sufficient lift for the helicopter to fulfil all of its roles, and minimising profile drag. To alter the amount of lift produced by the rotor system, the angle of attack must be altered. As the angle of attack is increased then the profile drag also increases.Skin frictionSkin friction drag is caused by the actual contact of the air particles against the surface of the aircraft. This is the same as the friction between any two objects or substances. Because skin friction drag is an interaction between a solid (the airplane surface) and a gas (the air), the magnitude of skin friction drag depends on the properties of both the solid and the gas. For the solid airplane, skin fiction drag can be reduced, and airspeed can be increased somewhat, by keeping an aircraft's surface highly polished and clean. For the gas, the magnitude of the drag depends on the viscosity of the air. Along the solid surface of the airplane, a boundary layer of low energy flow is generated. The magnitude of the skin friction depends on the state of this flow.Interference dragInterference drag is a component of parasitic drag which is caused by vortices. Whenever two surfaces meet at a sharp angle on an airplane, the airflow has a tendency to form a vortex. Drag is created by acceleration of air in to this vortex, by doing this the aircraft will form a low pressure area. With the help of primary methods interference drag could be reduced, this method will include eliminating any sharp angles on the aircraft by a certain means.drag
Why is it important for an electromagnet field to flip halfway through the turn of the motor axle?
The angle when the field changes is determined by the angle between coils. For any electrical motor to continue to rotate the field has to move, otherwise the rotor North would reach the stator South and stop.
What is a helicopter blade called?
the blade is called rotor bladesThe rotor blades on top are called Main Rotor Blades, because they are the main source of lift for the helicopter. The smaller rotor blades on the tail are called Tail Rotor Blades.
What is the blades on a helicoptor called?
The blades on a helicopter are called rotor blades. They are attached to the rotor mast and rotate to provide lift and control for the helicopter.
What does rotor blades overcome mounted to flapping hinges?
The flapping of the blades compensates the dissymmetry of the lift created by the blades. The blade going in the same direction as the relative wind has more speed , therefore more lift than the one going against the wind. As the blades are on hinges the blade which has more lift can "flapp" upwards resulting in loss of surface ( as lift is also dependent of the surface) and thus balancing the lift on the rotor disk.
What holds a helicopters blades on?
The rotor hub holds blades on
What is the rotor head for?
The rotor head changes the angle of incidence of the rotor blades as they rotate.
Can helicopter blades be called wings?
No, they are correctly called 'rotor blades'
What is the record for the maximum number of main rotor blades in a helicopter?
I can't answer what the record number of main rotor blades is but these three helicopters are the some of the largest helo's in the world and the last has 10 main rotor blades although it has no tail rotor so it depends on your definition of main rotor I guess.Sikorsky S-64 Sky crane - Has 7 main rotor bladesMil Mi-26 - Has 8 main rotor bladesMil Mi-12 - Has 10 main rotor blades - was only really a prototype.
What is the palindrome for system of horizontal blades that allow helicopters to fly?
Rotor blades
What does rotor blades mean?
Rotor blades are on helicopters. They are the long narrow parts above the fuselage (cabin) .When these rotate they impart 'lift' to the helicopter.
What is a rotor hub?
Rotor hub links the blades to the low-speed shaft
What is the rotor head?
it is the mechanism above the transmission that is hooked up to the rotor blades
Another name for helicopter propelers?
Main rotor and tail rotor. The main rotor is on top of the helicopter consisting of two or more blades, and the tail rotor is at the back of the helicopter, which also consists of two or more blades.
