inheritance in Modelica code in MoCustomComponent

Minoru Yubuchi_21921

Please take a look at the attached Activate mode, SpringMass_1.scm, in which the MoCustomComponent block has the same Modelica code as original Spring component, except removing all annotations. It issued the error below:

 

Error: Error, (in MapleSim:-Modelica:-Flatten) cannot resolve `Translational.Interfaces.PartialCompliant` in model `vss_SpringMass_1_im.vss_SpringMass_1_container.vss_SpringMass_1.__MoCustomComponent__.Spring_1`; there is no `Translational` visible

( 99 )

Model: SpringMass_1

 

I replaced the following code in the model, SpringMass_1.scm:

 

extends Translational.Interfaces.PartialCompliant;

 

by 

 

extends Modelica.Mechanics.Translational.Interfaces.PartialCompliant;

 

and the error gone, but another error came as follows:

 

Error: Error, (in MapleSim:-Modelica:-Flatten) cannot resolve type `SI.TranslationalSpringConstant` of parameter `vss_SpringMass_2_im.vss_SpringMass_2_container.vss_SpringMass_2.__MoCustomComponent__.Spring_1.c` in model `vss_SpringMass_2_im.vss_SpringMass_2_container.vss_SpringMass_2.__MoCustomComponent__.Spring_1`; there is no `SI` visible

( 99 )

Model: SpringMass_2

 

Then, I added the following import statement:

 

import SI = Modelica.SIunits;

 

and the simulation went without any error messages.

 

Please let me know why the Modelica code in the first model doesn't work.

 

Regards,

Minoru Yubuchi 

 

 

SpringMass_1.scm

SpringMass_2.scm

SpringMass_3.scm

RoKet

References to other components (in your case a partial component) are like references to files. You can use relative or absolute paths. If you create a new component inside a specific Modelica library (e. g. Translational.Components) you can use the relative path Translation.Interfaces, otherwise you have to use the full qualified path Modelica.Mechanics.Translational.Interfaces. The MoCustomComponent creates a component outside the Modelica structure, so you have to use the full qualified path.

Same for types like TranslationalSpringConstant. It is defined in Modelica.SIunits, so you can use Modelica.SIunits.TranslationalSpringConstant or "import ..." to save typing.