The Add Parameters dialog box allows you to define parameters to be used in design scenarios.
Name. Type a name for the parameter.
Comment. Type additional descriptive information about the parameter.
Filter. Specifies the class of the parameter. Available classes are:
Type. Select the desired parameter type. The available types depend on the selected filter as listed in this table.
Units. Select the desired units.
User defined value. Type a numeric value of the parameter.
Expression. Type an expression that defines the parameter by one or more terms separated by + or - signs using constants or perviously defined parameters. You can use operators and mathematical functions to define the expression.
Make sure that the units of each term are compatible with the parameter being defined. A constant term is interpreted in the SI units as displayed to the right of the expression field. The expression value is listed in the parameters table in the units selected in the menu to the right of the User defined value box.
For example, if you defined p = 50 psi, and A = 5 cm2, then you can properly define a force F = 3*P*A. If you define F = P*A + 100, the units of 100 are those shown to the right of the expression field. It is not proper to define F with dimensionally incorrect terms such as A, 5*A2 , P, P2 , or P/A.
Using Parameters with Design Scenarios