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RecurDyn Expression

RecurDyn allows users to write simple programming expressions that are executed and evaluated during the simulation of a model. Expressions are text strings like sin(5*time) that can be used for many purposes in RecurDyn, such as to specify the position of a body that varies with time, to specify a reaction force, or to create a user-defined constraint equation.

Expressions are written directly in RecurDyn/Modeler, and provide a very simple but very powerful way for users to control parts of a model or generate data that can be analyzed after a simulation.

▶ Expression Function Handbook (Download)

FAQ

Tips

  1. How to easily create Expression using Excel (Signal Chart: Time Type)
  2. Solver – Becoming an Experienced User #4 – Simulation Parameter #1
  3. How to create Expressions using Excel (Signal Chart)
  4. Let's try Expression Helper!
  5. GoPowerUser, Fourth Episode: A Guide to Using RecurDyn Expression Functions (Various Load Conditions)
  6. GoPowerUser, Third Episode: A Guide to Using RecurDyn Expression Functions (IF and STEP)
  7. RecurDyn Contact - Becoming an Experienced User, 2nd Episode: Solid / Geo Contact Objects
  8. Applying Test-measured Spline Data to RecurDyn
  9. GoPowerUser, First Episode: A Guide to Using RecurDyn Expression Functions (Basic)
  1. [6th Episode] GoPowerUser : How to implement a one-way clutch using Expression
  2. GoPowerUser, Fifth Episode: A Guide to Joint modeling with Clearance Using Expression
  3. GoPowerUser, Second Episode: A Guide to Using Multi-parameter Differential Equations
  4. MFBD modeling for a clutch system
  1. [Expression application] Separation of the bodies caused by the excessive load (or breakage)
  2. How to make a body that is constrained by a joint perform a free motion
  3. [Expression Application Model] Development model of solar panel
  4. [Expression Application Model] Single-variable differential equations (Bouc-Wen histeresis)
  5. Applications of MBD for ANSYS : Clutch model mechanism from fly wheel to input shaft

Expression Helper

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