13.6 Equation object

The Equation object defines a linear multi-point constraint between a set of degrees of freedom.

The Equation object is derived from the Constraint object.

Access
import interaction
mdb.models[name].constraints[name]


13.6.1 Equation(...)

This method creates an Equation object.

Path
mdb.models[name].Equation

Required arguments

name

A String specifying the constraint repository key.

terms

A sequence of (Float, String, Int, Int) sequences specifying a coefficient, Set name, degree of freedom, and coordinate system ID. The coordinate system ID is optional.

Optional arguments

None.

Return value

An Equation object.

Exceptions

If terms does not contain more than one entry:

Equation must have two or more terms.


13.6.2 setValues(...)

This method modifies the Equation object.

Required arguments

None.

Optional arguments

The optional arguments to setValues are the same as the arguments to the Equation method, except for the name argument.

Return value

None

Exceptions

If terms does not contain more than one entry:

Equation must have two or more terms.


13.6.3  Members

The Equation object has members with the same names and descriptions as the arguments to the Equation method.

In addition, the Equation object has the following member:

suppressed

A Boolean specifying whether the constraint is suppressed or not. The default value is OFF.


13.6.4  Corresponding analysis keywords

*EQUATION