NSM Panel

Use the NSM panel to add non-structural mass entities to a model, or modify existing ones.

Location: Analysis page
Note: Only available in the OptiStruct and Nastran solver interfaces.

Non-structural mass entities can also be realized from the connector module's Apply Mass panel.

The non-structural mass set combination card is supported as a specific load collector with the NSMADD card image. The case control NSM= selector is supported as a control card and is flexible to allow either single NSM or NSMADD references.

Engineering Solutions directly supports the bulk data cards NSM1 and NSML1. NSM and NSML cards are converted to NSM1 and NSML1 respectively.

Since Engineering Solutions does not allow multiple NSM cards to have the same SID, when importing it will renumber and create the equivalent NSMADD cards. In addition, Engineering Solutions will group similar cards to reduce output.

For example, Figure 1 becomes Figure 2.


Figure 1.


Figure 2.

Engineering Solutions will only export NSM1 and NSML1 bulk data cards.

Create Subpanel

Option Action
name = Specify a name for the new NSM.
type= Select a NSM type.
NSM1
Define a non-structural mass per unit area or per unit length for a list of elements or properties.
NSML1
Define a lumped non-structural mass for a list of elements or properties.
color Select a color for the entity.
elems/props Select whether the NSM will be applied to elements or properties, then select the desired elems or props.
Note: Only available for the OptiStruct solver interface.
by entity / all
by entity
Select elements or properties to define the NSM.
Note: Due to solver limitations, you cannot create a NSML1 entity that includes both area and line elements.
all
Assign the NSM to all entities of a specific type within the model.
Note: Only available for the Nastran solver interface.
mass = Specify the mass value for the NSM.

Update Subpanel

Option Action
name = Select an existing NSM entity that you want to update.
type= Select a NSM type.
NSM1
Define a non-structural mass per unit area or per unit length for a list of elements or properties.
NSML1
Define a lumped non-structural mass for a list of elements or properties.
color Select a color for the entity.
elems/props Select whether the NSM will be applied to elements or properties, then select the desired elems or props.
Note: Only available for the OptiStruct solver interface.
by entity / all
by entity
Select elements or properties to define the NSM.
Note: Due to solver limitations, you cannot create a NSML1 entity that includes both area and line elements.
all
Assign the NSM to all entities of a specific type within the model.
Note: Only available for the Nastran solver interface.
mass = Specify the mass value for the NSM.

Command Buttons

Button Action
create Create the new NSM entity.
update Update the selected NSM entity to use the current input details.
review Once an nsm entity exists, type its name into the name = field on either of the Create or Update subpanels, and then click review. The elements or properties that define the nsm are temporarily highlighted.

While in review mode on the Update subpanel, you can change the selection of entities by any standard means (clicking entities, using the advanced entity selection menu, and so on) and save the changes by clicking update. This clears the review mode, but if you enter review mode once again the new selection of entities will display.
card edit Edit the card image of the selected entities.
return Exit the panel.