When modeling stranded conductors using SOLID236 or SOLID237 with KEYOPT(1)=0, the applied current density J specified on the BFE command (BFE,,JS) must satisfy the solenoidal condition . For more details about the solenoidal condition, see Analysis Considerations.

The harmonic analysis supports only linear material properties: magnetic permeability MP,MURX (also MURY, MURZ) and electrical resistivity MP,RSVX (also RSVY, RSVZ). An electromagnetic harmonic analysis using SOLID236 and SOLID237 also supports electrical permittivity MP,PERX (also PERY, PERZ).

Permanent magnets are not permitted in a harmonic analysis unless this is a linear perturbation harmonic analysis.