I never heard of such a principle, and can't find any reference. Do you have some website that explains this principle?
U should use two forces which produces torque to tigten or lossen it
The principle of the lever states that a lever is a simple machine consisting of a rigid bar that pivots around a fixed point called a fulcrum. The lever operates on the principle of torque, where a force applied at one point on the lever can create a larger force at another point. This allows for the amplification of force or the increase in distance traveled, depending on the placement of the applied force and the load.
A large force can produce a small or zero torque if the force is applied at a point where the lever arm (distance from the point of rotation to the line of action of the force) is very small or zero. Torque is calculated as force multiplied by lever arm, so a small lever arm can result in a small or zero torque even with a large force.
torque
When an external torque is applied to a rotating object, the total angular momentum of the system is no longer constant because the external torque changes the rotational motion of the object by adding or subtracting angular momentum. This violates the principle of conservation of angular momentum, which states that the total angular momentum of a system remains constant if no external torques are acting on it.
The resisting torque in a turning moment diagram is the torque opposing the applied torque or force, usually due to friction or other resistance in a system. It is represented by the downward curve or line in the turning moment diagram, indicating the counteracting force against the applied torque. The difference between the applied torque and resisting torque determines the net torque or moment acting on the system.
The principle of gyroscopic precession is responsible for the actions of a boomerang in flight. The torque resulting from the aerodynamic lift of the moving object causes a curved axis, and the subsequent path of return.
As the torque applied to the rotating arm increases, the force applied to the rolling mass also increases. This is because torque is directly related to force in rotational systems, according to the equation torque = force x distance. So, increasing the torque will result in a higher force applied to the rolling mass on the rotating arm.
A 'beam style' torque wrench.
You can increase the applied torque without increasing the applied force by increasing the length of the lever arm or by changing the angle at which the force is applied. This increases the moment arm, which in turn increases the torque for the same amount of force.
The lever arm in torque is the distance between the pivot point and the point where the force is applied. A longer lever arm increases the torque and rotational force applied to an object, while a shorter lever arm decreases the torque and rotational force.
The torque applied to the drive is adjusted by instructing the engine to increase or decrease output.