emunit

Materials.emunit(lab='', value='', **kwargs)

Specifies the system of units for magnetic field problems.

Mechanical APDL Command: EMUNIT

Command default:

Rationalized MKS system of units (meters, amperes, henries, webers, etc.). Free-space permeability is set to 4 πe-7 Henries/meter, free-space permittivity is set to 8.85e-12 Farads/meter.

Parameters:

labstr

Label specifying the type of units:

• MKS - Rationalized MKS system of units (meters, amperes, henries, webers, etc.). Free-space permeability is set to 4 πe-7 henries/meter. Free-space permittivity is set to 8.85 e-12 F/m.

• MUZRO - User defined system of units. Free-space permeability is set to the value input for VALUE. Other units must correspond to the permeability units. Relative permeability may be altered to absolute values.

• EPZRO - User defined system of units. Free-space permittivity is set to the value input for VALUE. Other units must correspond to the permittivity units.

valuestr

User value of free-space permeability (defaults to 1) if Lab = MUZRO, or free-space permittivity (defaults to 1) if Lab = EPZRO.

Notes

Specifies the system of units to be used for electric and magnetic field problems. The free-space permeability and permittivity values may be set as desired. These values are used with the relative property values ( mp ) to establish absolute property values. If the magnetic source field strength (H:sub:s ) has already been calculated ( biot ), switching emunit will not change the values.

For micro-electromechanical systems (MEMS), where dimensions are on the order of microns, see the conversion factors in System of Units in the Coupled-Field Analysis Guide.

This command is also valid in SOLUTION.