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Page 7: MassTr

Purpose: This interface is for modifying model or part mass properties to obtain desired mass, center of mass, and inertia.

Current - Measure the current mass, center of mass, and inertia properties (which serve as starting reference values).

Desired - Assign desired mass properties using one of two methods: (1) add *ELEMENT_MASS to selected nodes or (2) convert *PART to *PART_INERTIA (if necessary) and assign specified properties.

Controls:

  • current panel
  • Current Mass
  • rbs Current - Measure current pass properties
Compute
 Automatically fill in mass properties for all active (VISIBLE) entities

 

  • desired panel
  • Desired Mass
  • rbs Desired - Assign desired mass properties
  • rb *PART_INERTIA
  • Mandatory inputs: Mass, X,Y,Z (of desired mass center), and Ixx-Ixz (inertia properties)

  • Optional inputs: none

  • cbc Included - Activate if mass and inertia for the selected part are included in the Current properties

  • rbs *ELEMENT_MASS
  • Mandatory inputs: Mass

  • Optional inputs: PID (part ID for mass elements), X,Y,Z (of desired mass center), and Tol. (acceptable deviation)

Apply
 Apply mass trim
Accept
 Accept mass trim
Reject
 Reject mass trim
Done
 Exit mass trim interface

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© 2012 Livermore Software Technology Corporation