Engineering Solutions

Batch Model Reduction Dialog

Batch Model Reduction Dialog

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Batch Model Reduction Dialog

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This tool is designed to reduce the amount of manual work involved in generating CMS superelements or CDS superelements for multiple modules by batch processing. The dialog is invoked by clicking the modelReduction-24 icon.                    

batch_model_reduction_dialog

This dialog is divided into sections. The top section allows you to select modules to include in the batch process, as well as options to be used in reduced model generation for each module.

# of grids

The number of grids in a module.  

# modes (struct)      

The number of structure modes for a module.  

Freq. 1st

The starting normal mode frequency for a module.

Freq. last

The last normal mode frequency for a module.

Label

Allows you to define an eight character or less label for the module when superelements are used in a residual assembly run.

Status

Is provided to show information about the state of the job.

CDS

Activate this checkbox to generate a CDS superelement.

CDS method

This is the method used to generate a CDS superelement. SVDNP is currently supported.

TF

Activate this checkbox if transfer functions are to be kept in the CDS superelement H3D file.  

CMSOUT

Activate this checkbox if the CMS superelement is to be generated.

CMS method

This method is used to generate CMS superelement. Both Craig-Bampton and General Modal are available.      

DMIGDV

Option to generate an ASCII file containing CELAS4 and CDAMP3 element data and/or their corresponding design variable definitions in generated DMIG.

Max freq.

The upper frequency of mode extraction.

No. of modes

The number of modes to be extracted.

SPOINT starting

The starting ID of the spoint.

Struct. damping

The global structure damping value to be used in generating the superelement. This can be blank if only the CMS superelement is requested. This field will be grayed out if the damping is already included in the material cards.

FSI

Activate this checkbox if the fluid structure interaction is required for the module.    

Max. freq.

The upper frequency of fluid mode extraction.

No. of modes

The number of fluid modes to be extracted.

SPOINT starting

The starting ID of the fluid spoint.

GP_RC

Activate this checkbox if grid participation recovery is required.

The middle section of the dialog provides analysis job related sections including the Job folder and any optional User comments. The bottom section allows you to select global analysis parameters that will be used to setup all checkout runs.

Upon clicking Create job, all model checkout jobs are created, and the Job Submission dialog opens. This dialog gives you options in submitting the jobs or skipping the job submission step.

nvh_job_submission_dialog2

Clicking Assign H3D in the Batch Model Reduction dialog automatically assigns CMS and CDS superelement files generated to the module as representations.  

 

See Also:

NVH Application