Questions tagged [torque]
Torque is defined mathematically as the rate of change of angular momentum of an object (in physics it is called "net torque"). The definition of torque states that one or both of the angular velocity or the moment of inertia of an object are changing. Moment is the term used for the tendency of one force to rotate an object,but not necessarily to change the angular momentum of the object (the concept which is called torque in physics).
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Motor torque required to move a trolley
This is a real situation.
The trolley is mounted with a rack underneath it and multiple steel wheels on a steel track. The trolley is driven by the rack and pinion mechanism from a geared motor.
The ...
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Useful power of an induction motor driven at a lower speed
I'm somewhat confused in the physical/mechanical train from the motor to the end load.
I have a screw/nut arrangement to move a platform up and down (think about an elevator). Induction motor, pulley ...
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Calculating the torque of multiple nuts
I need to press hockey puck scr to a certain force, so I must hold it between two plates and by bolting plates apply that specific force to the hockey puck. I am using the torque wrench and 8 bolts, ...
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How could I calculate the torque due to lift and drag in the body frame?
I'm trying to figure out the torque due to aerodynamic forces on an aircraft confined to two dimensions (so no sideslip). Defining the windframe with basis vectors $\hat{w_1}, \hat{w_2}$ obtained by ...
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How does the thrust rating of a push rod/linear actuator (I've seen it in both kg and N) relate to the amount of weight it can move?
I'm working on a custom RC project, and I'm needing to move a lever with a "weight" of 5 lbs. 5 lbs is required to actuate the lever, and I need to push it 5 mm. Gravity does not affect the ...
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Why is retorquing sometimes necessary and other times a mistake?
Bike mechanics will implore amateurs not to retorque a bolt. One must first undo the bolt and then retorque.
Yet car wheels specifically require retorquing on a different day soon after installing the ...
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Which beam deflects and twists more, open section or closed section?
Two beams, one open section (like an I-beam with flanges and web) and the other closed section (like a hollow square section) are cantilevered and have the same overall cross sectional moment of ...
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How much torque is required to lift 27 kg at 1 m distance to go 90° in 8 seconds?
strong text
I know 27 kg × 9.8 ms-2 = 264.6 N
Torque = 264.6 × 1 m = 264.6 Nm
but how much required to go 90° in 8 seconds?
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Counter-intuitive behavior of chain drive
In a chain drive system, sprocket 2 has a motor attached, sprocket 1
is being driven.
The blue construction is static and immobile.
Before starting the motor, both load cells show 0 (tare).
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Gyroscopic precession
My question is about a school project I am working on; a beam can rotate freely on the horizontal axis. If one motor (or multiple) is attached far from the pivot the beam should rotate.
I am trying to ...
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How do AC servos have constant torque region?
I have been learning about AC servos for a project. As i look through the torque speed curves, I get stuck. I understand how to use them, but I am baffled by the shape.
I was always taught that there ...
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Is it possible to simulate inertial load using brake?
Suppose to have an engine attached to a flywheel, I add power, the flywheel start to rotate and oppose a resistance to motion. More power, more resistance.
I'm wondering if I can simulate this ...
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Does an off the shelf electromechanical device exist that does rotary oscillations
Does an off the shelf electromechanical device exist that does rotary oscillations?
Similar to a torsion pendulum motion or a rotary spring but gets some energy supplied by electrical means to help ...
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How do I relate tongue weight to weight x distance?
The specification for car hitches routinely state the tongue weight, but do not specify how far that weight can/should be applied. What am I missing? Shouldn't the maximum bending moment be the one to ...
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How to look for a stronger electric motor for a DIY candy panner?
I'm an amateur working on a candy panner project, similar to this one but with a dedicated motor instead of an attached drill. After some experimentation, I have a working V1 that I successfully used ...
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