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What do you understand by the instantaneous center of rotation in kinematics of machines?
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What is a limited rotation hydraulic motor?
A limited rotation hydraulic motor provides a rotary output motion over a finite angle. This device produces a high instantaneous torque in either direction and requires only a small amount of space and simple mountings. Rotary motors consist of a chamber or chambers containing the working fluid and a movable surface against which the fluid acts. The movable surface is connected to an output shaft to produce the output motion. Figure 4.1 shows a direct acting vane-type actuator. In this type, fluid under pressure is directed to one side of the moving vane, causing it to rotate. This type of motor provides about 280° rotation. Rotary actuators are available with working pressures up to 350 kg/cm3 (4978 psi). They are typically foot mounted, flanged or end mounted. Most designs provide cushioning devices. In a double vane design similar to the one depicted in the figure above, the maximum angle of rotation is reduced to about 100°. However in this case, the torque-carrying capacity is twice that obtained by a single vane design.
How can you tell if a water pump is reverse rotation?
the pulley will sit on the top (or smooth) side of the belt, so it spins the opposite direction of everything else that runs off the belt. in the case of my vehicle, a 1998 Pontiac grand prix 3.1 L V-6, this is the standard rotation. i had the same question when i was pricing water pumps, and only 1 that i found specifically said reverse rotation. i called the parts store to check, and they said that all the pumps for my vehicle are reverse rotation, even if the part description doesn't specifically state that.
What is pneumatic rotary actuator?
I think it is a device that will turn pneumatic power (pressurised air) into rotation.
What difference between clockwise and anticlockwise rotation of steam turbine?
1- it is amatter of preference 2- considered under gyroscopic precession
What measuring tools do mechanics use?
Tape measures Calipers Tachometer (measures the rotation speed of a shaft or disk, as in a motor or other machine
What is rotational kinematics?
Rotational kinematics is the same as linear kinematics but with objects in rotation. All of the linear kinematic equations that you learn for velocity and acceleration can be applied to rotational kinematics except that the greek w (omega) is used for velocity and the greek a (alpha) is used for acceleration.
How where old sewing machines powered?
rotation, pedal power.
What tools or machines are used for crop rotation?
ang panget mu
What do you understand by Rotation of earth?
I understand that it takes one full day or 24 hrs. for the earth to complete rotation, and each 12 hrs. the earth has completed half a turn.
What is spherical motion?
Rotation around a point, or spherical motion, is the motion of a rigid body during which one of its points O remains fixed, while all the other points move along the surface of spheres with their center at point O. During such rotation of a rigid body, any elementary displacement of the body is an elementary rotation around some axis passing through point O and called the instantaneous axis of rotation. This axis, unlike a fixed axis, is constantly changing its direction with time. As a result, the rotational motion of a rigid body consists of a series of elementary rotations about instantaneous axes that are constantly changing direction. An example of such rotation is the movement of a gyroscope.
Do machines use tires to transfer power or rotation?
Both. They transfer power by transmitting torque at a rotational speed.
What are tachometers used for?
Tachometers are used to measure the rotation speed of shafts or disks (the kind which might be found in motors or machines). Tachometers on vehicles, for example, show the rotation rate of the engine's crankshaft.
What conditions must be met before two alternators can be paralleled together?
before two alternators can be connected in parallel, the output voltage of the two machines should be the same, the phase rotation of the machines must be the same, and the output voltages of the two machines must be in phase.
Does The earth turns around completely 4 times a day?
A day is defined as the time it takes the Earth to make one complete rotation on it's axis. For the sake of accuracy, understand a 'day' to be the standard 24 hour day. There are different kinds of day. And a complete rotation means a complete sidereal rotation.
Show you how to put on a belt?
There are belts that people wear, that go through the loops that are on the top of the pants, and then there are belts that are used in machines, to transfer rotation from one axle to another; those are trickier to install.
Which strength training machines are best for football players?
The best strength training machines for football players are those that develop what is called "explosive power" as opposed to just building how much weight a player can lift, push, or bear. Explosive power training machines might include exercises for hip and leg drive, squat, vertical jump, torque, shoulder rotation, and high stepper.
What is internal rotation?
Internal rotation refers to the rotation towards the axis of the body. External rotation refers to the rotation away from the center of the body.
