User Interface
SolidWorks Fundamentals
Moving from 2D to 3D
SolidWorks Costing
Design Checker
Design Studies in SolidWorks
Drawings and Detailing
Import and Export
Large Scale Design
Model Display
Mold Design
Motion Studies
Introduction to Motion Studies
Accessing and Naming Motion Studies
MotionManager Interface
Motion Elements
Motor and Force Profiles
General Techniques
Starting a New Motion Study
Motion for Layout Sketches
Mass Moments of Inertia
Running Motion Studies for Layout Sketch Mechanisms
Setting Mass Properties in Layout Sketch Blocks
Configuration-specific Motion Studies
Motor-based Motion Studies
Motion Study Properties PropertyManager
Setting the Exact Time for Key Points and the Time Bar
Edit Time Dialog Box
View Keys
What can be interpolated
Component Contact
Motion Study Plots
Motion Study Mates
Motion Along a Path
Event-based Motion Analysis
Rigid Groups
Stress Analysis for Motion
Motion Study Troubleshooting
Parts and Features
Sheet Metal
Sustainability Products
SolidWorks Utilities
Workgroup PDM
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Mass Moments of Inertia

For each part in an assembly, the mass moment of inertia matrix is used when you calculate Motion Analysis motion studies. This matrix plays the same role for rotary motion as that played by mass for linear motion. The mass moments of inertia are the unique components of the symmetric mass moment of inertia matrix. Six mass moments of inertia values are required for this matrix: one each for the moments along the X, Y, and Z axes of the part coordinate frame, and three cross-component terms XY, YZ, and XZ. These values are automatically computed based on the geometry of the sketch block. If you have this data, you can modify the default values in the Mass Moments of Inertia dialog box.

To open this dialog box, from a Motion Analysis motion study for a layout sketch, select Insert > Layout , select a block, and click Moments of Inertia for Mass Properties in the Block PropertyManager.

Mass Moments of Inertia

Modify the six mass inertia moments and cross moments:
  • Ixx
  • Iyy
  • Izz
  • Ixy
  • Iyz
  • Izx

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