The meaning of torque

The material generated during torsional deformation force is applied, the unit N · m. When torsional rigidity or torsional modulus and other mechanical measuring material when to reverse the dynamic mechanical properties of materials testing methods, are required torque applied to the specimen. Especially in many dynamic mechanical measuring instruments, as relatively easy to achieve free oscillations or forced oscillation of torque applied to the form, so the use is more widespread. Such as Wiggler analyzers, twisted braid analyzers, such as rotational rheometer torque is applied to the sample.

The so-called Torque is an object of the reaction by the axial force and torsion, commonly used to measure torque wrench, the unit is Nm. Common torsion
Force objects have screw nut drive shaft and so on.

The so-called "torque" in physics should be called "torque" because the results of many rumors, we say that a "torque", also handed down since then, as the guide straight. The concept of torque from the elementary school's "lever principle" to explain over the definition of a "vertical force multiplied by the distance from the center of rotation", metric units of Newton - meters (Nm), divided by the acceleration due to gravity 9.8m / sec2 After that, the unit can be converted to the people familiar with the kilogram - meter (kg-m). Imperial units, compared with pounds - feet (lb-ft), in the United States is more common car catalog, to be converted into metric, as long as the digital divide lb-ft to 7.22.