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A major part of the torque is due to friction, so the differences in friction can cause large variations of the preload with the same torque setting; [3] angle-controlled tightening (also known as turn-of-the-nut method) is a technique where the bolt joint is rotated to some angle that ensures the stress beyond the yield limit of the parts ...
A torque limiter may limit the torque by slipping (as in a friction plate slip-clutch), or uncouple the load entirely (as in a shear pin). The action of a torque limiter is especially useful to limit any damage due to crash stops and jams. Torque limiters may be packaged as a shaft coupling or as a hub for sprocket or sheave.
Torque density is a measure of the torque-carrying capability of a mechanical component. It is the ratio of torque capability to volume and is expressed in units of torque per volume . Torque density is a system property since it depends on the design of each element of the component being examined and their interconnection.
Also, there are magnetic flux losses because of the bridges between the banana slots. But by using a double flux design, a 30–50% increase in torque, can be achieved, and by using a triple flux design, a 40–90% in torque can be achieved. This is important in applications where size and weight are critical, such as automotive requirements. [2]
The deflection must be considered for the purpose of the structure. When designing a steel frame to hold a glazed panel, one allows only minimal deflection to prevent fracture of the glass. The deflected shape of a beam can be represented by the moment diagram, integrated (twice, rotated and translated to enforce support conditions).
Engineered joints require the torque to be chosen to provide the correct tension preload. Applying the torque to fasteners is commonly achieved using a torque wrench. [7] The required torque value for a particular fastener application may be quoted in the published standard document, defined by the manufacturer or calculated.
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Most commonly, these have taken the form of multiple turbines and stators, each set being designed to produce differing amounts of torque multiplication. For example, the Buick Dynaflow automatic transmission was a non-shifting design and, under normal conditions, relied solely upon the converter to multiply torque.