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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.
Torque density is useful during the concept evaluation stage of mechanical designs, especially in power train design problems. Typically, it will be one of many factors used to assign potential success measures to each concept. For example, in the upgrade of a drive train for a set of rolls in a rolling mill, space is often dictated by the configuration of current components. There may be several types of devices that can perform the function of an existing component that must be replaced. The relative torque densities of the devices may be an important determinant for which design is ultimately selected, although it will often compete with other factors such as cost, ease of maintenance, time to install, operating costs and potential failure modes.
Torquedensity is a measure of the torque-carrying capability of a mechanical component. It is the ratio of torque capability to volume and is expressed...
considerably higher torquedensity than induction machines. The continuous power density is determined by the product of the continuous torquedensity and the constant...
lower torquedensity. Torque, speed, and power are related by: P = T ∗ ω {\displaystyle P=T*\omega } where P is mechanical power, T is torque, in Newton-metres...
A torque converter is a device, usually implemented as a type of fluid coupling, that transfers rotating power from a prime mover, like an internal combustion...
higher torquedensities than universal joints designed to fit a given space while universal joints induce lower vibrations. The limit on torquedensity in...
type rotors. Machines that use ferrite magnets have lower power density and torquedensity when compared with neodymium machines. PMSMs have been used as...
therefore, torque capability is greatly increased. The more planets in the system, the greater the load ability and the higher the torquedensity. The planetary...
there is no external torque. Torque can be defined as the rate of change of angular momentum, analogous to force. The net external torque on any system is...
and on-board electricity supply. Electrical power then drives high-torquedensity induction motors which turn two conventional (non-azimuthing) propellers...
question. The B field can also be defined by the torque on a magnetic dipole, m.: 174 Magnetic torque (vector form, SI units) τ = m × B {\displaystyle...
magnetic flux density), and J is joule (SI derived unit of energy).: 20–21 Although torque (N·m) and energy (J) are dimensionally equivalent, torques are never...
A magnetorquer or magnetic torquer (also known as a torque rod) is a satellite system for attitude control, detumbling, and stabilization built from electromagnetic...
spheres. By measuring the angle of the rod and knowing the twisting force (torque) of the wire for a given angle, Cavendish was able to determine the force...
stores mechanical energy when it is twisted. When it is twisted, it exerts a torque in the opposite direction, proportional to the amount (angle) it is twisted...
Depending on the connections of the field to the power supply, the speed and torque characteristics of a brushed motor can be altered to provide steady speed...
electromagnets) in the stationary part of the motor (stator) to create a torque on the armature which causes it to rotate. In some DC motor designs, the...
polarization density. An object with an electric dipole moment p is subject to a torque τ when placed in an external electric field E. The torque tends to...
motors can deliver high power density at low cost, making them attractive for many applications. Disadvantages include high torque ripple (the difference between...
as long as the motor is correctly sized to the application in respect to torque and speed. Switched reluctance motors are very large stepping motors with...
of density shows an expression of the Faxén type for the total force, but the total torque and the symmetric force-dipole moment. The force density at...
the configuration of a single main rotor accompanied by a vertical anti-torque tail rotor (i.e. unicopter, not to be confused with the single-blade monocopter)...
Moon. Some theorists think that without this stabilization against the torques applied by the Sun and planets to Earth's equatorial bulge, the rotational...
properties of what we now call the center of mass. Archimedes showed that the torque exerted on a lever by weights resting at various points along the lever...
the torquedensity showing the rate of conversion between the orbital angular momentum and spin. Examples of materials with a nonzero spin density are...
18 May 2015. Retrieved 5 December 2018. "MagniX Motor High Power, TorqueDensity, MagniAlpha Sucperconducting". Sustainable Skies. 18 May 2018. Retrieved...
result. This concept assumes that the rotation is also stable, such that no torque is required to keep it going. The kinematics and dynamics of rotation around...
thermal issues. Torque current MMF vectorially combines with the persistent flux of permanent magnets, which leads to higher air-gap flux density and eventually...
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