Constraint entities define how bodies such as rigid, nodal flexible, modal flexible, and EasyFlex bodies are attached to each other and how constraints allow those bodies to move relative to each other. These constraints restrict relative movement between bodies and represent idealized connections. This section introduces constraint entities and how to formulate, create and modify them.

• 5.1.1. Classification of Constraint Entities
• 5.1.2. Degree of Freedom and Constraints
• 5.1.3. Constraint Entity Creation
• 5.1.4. Location in the Subsystem Navigator
• 5.1.5. Naming Convention for Constraint Entities
• 5.1.6. Constraint Entity Modification
• 5.1.7. Constraint Entity Properties
• 5.1.8. Constraint Entity Connectors
• 5.1.9. Constraint Entity Deletion
• 5.1.10. Redundant Constraints