7. Flexible

• 7.1. Compliant Clutch Tutorial (FFlex)
  • 7.1.1. Getting Started
    • 7.1.1.1. Objective
    • 7.1.1.2. Audience
    • 7.1.1.3. Prerequisites
    • 7.1.1.4. Procedures
    • 7.1.1.5. Estimated Time to Complete
  • 7.1.2. Importing the Model Geometry
    • 7.1.2.1. Task Objective
    • 7.1.2.2. Estimated Time to Complete
    • 7.1.2.3. The Compliant Clutch Model
    • 7.1.2.4. Starting RecurDyn
      • 7.1.2.4.1. To start RecurDyn and create a new model:
    • 7.1.2.5. Importing the Compliant Clutch Plate Mesh Data
      • 7.1.2.5.1. To import a mesh data file:
    • 7.1.2.6. Importing the Rigid Geometry
      • 7.1.2.6.1. To import the driver:
      • 7.1.2.6.2. To import the load ring:
      • 7.1.2.6.3. To improve the rendering of the geometry:
      • 7.1.2.6.4. Save the model
  • 7.1.3. Adding Joints and Forces
    • 7.1.3.1. Task Objective
    • 7.1.3.2. Estimated Time to Complete
    • 7.1.3.3. Creating Revolute Joints
      • 7.1.3.3.1. To create the driver joint:
      • 7.1.3.3.2. To create the load joint:
    • 7.1.3.4. Creating the Torque Expressions
      • 7.1.3.4.1. To create the driving torque expression:
      • 7.1.3.4.2. To create the load torque expression:
    • 7.1.3.5. Creating the Driving and Load Torques
      • 7.1.3.5.1. To create the driver torque:
      • 7.1.3.5.2. To create the load torque:
      • 7.1.3.5.3. Save the model
  • 7.1.4. Defining Surfaces and Contacts
    • 7.1.4.1. Task Objective
    • 7.1.4.2. Estimated Time to Complete
    • 7.1.4.3. Contacts in the Model
      • 7.1.4.3.1. Contact Layout Diagram
    • 7.1.4.4. Creating the Patch Sets
      • 7.1.4.4.1. To create a patch set on a flexible body:
      • 7.1.4.4.2. At this point, you can either:
      • 7.1.4.4.3. Save the model
    • 7.1.4.5. Creating the Face Surfaces
      • 7.1.4.5.1. To create a face surface on a rigid body:
      • 7.1.4.5.2. To create the remaining face surfaces:
    • 7.1.4.6. Creating the Contacts
      • 7.1.4.6.1. Contact Layout Diagram
      • 7.1.4.6.2. To create a driver arm contact:
      • 7.1.4.6.3. To create the remaining driver arm contacts:
      • 7.1.4.6.4. To create a plate-to-load contact:
      • 7.1.4.6.5. To create the remaining plate-to-load contacts:
      • 7.1.4.6.6. To clean up the display of the model:
    • 7.1.4.7. Tuning the Contacts
      • 7.1.4.7.1. To tune the contacts:
      • 7.1.4.7.2. To add friction to the plate-to-load contacts:
      • 7.1.4.7.3. Save the model
  • 7.1.5. Creating a Boundary Condition
    • 7.1.5.1. Task Objective
    • 7.1.5.2. Estimated Time to Complete
    • 7.1.5.3. Creating a Boundary Condition
      • 7.1.5.3.1. To set up a boundary condition:
      • 7.1.5.3.2. Save the model
  • 7.1.6. Simulating the Model
    • 7.1.6.1. Task Objective
    • 7.1.6.2. Estimated Time to Complete
    • 7.1.6.3. Setting up and Running the Simulation
      • 7.1.6.3.1. To set up and run the simulation:
    • 7.1.6.4. Enabling Contoured View of Stresses in the Clutch Plate
      • 7.1.6.4.1. To enable the contour display:
    • 7.1.6.5. Viewing the Animation Results
      • 7.1.6.5.1. To play the animation:
      • 7.1.6.5.2. When the animation finishes:
      • 7.1.6.5.3. To adjust the contour display:
    • 7.1.6.6. Plotting the Simulation Results
      • 7.1.6.6.1. To compare rotational velocity and torque plots to the animation:
      • 7.1.6.6.2. To plot the contact forces:
      • 7.1.6.6.3. To apply a filter to the contact force data:
  • 7.1.7. Appendix A: Creating the Remaining Patch Sets
    • 7.1.7.1. Task Objective
    • 7.1.7.2. Estimated Time to Complete
    • 7.1.7.3. Creating the Remaining Patch Sets
      • 7.1.7.3.1. To create the remaining patch sets:
• 7.2. Plasticity Bending Machine Tutorial (FFlex)
  • 7.2.1. Overview
    • 7.2.1.1. Task Objective
    • 7.2.1.2. Prerequisites
    • 7.2.1.3. Procedure
    • 7.2.1.4. Estimated Time to Complete
  • 7.2.2. Opening the Initial Model
    • 7.2.2.1. Task Objective
    • 7.2.2.2. Estimated Time to Complete
    • 7.2.2.3. Opening the RecurDyn Model
      • 7.2.2.3.1. To run RecurDyn and open the initial model:
      • 7.2.2.3.2. To save the model:
    • 7.2.2.4. Simulating the Initial Suspension Model
      • 7.2.2.4.1. To perform the initial simulation:
    • 7.2.2.5. Viewing the Result
      • 7.2.2.5.1. To view the results:
  • 7.2.3. Generating a FFlex Body
    • 7.2.3.1. Task Objectives
    • 7.2.3.2. Estimated Time to Complete
    • 7.2.3.3. Creating the Box Geometry
    • 7.2.3.4. Creating the Box Mesh
  • 7.2.4. Performing Elastic Analysis
    • 7.2.4.1. Task Objectives
    • 7.2.4.2. Estimated Time to Complete
    • 7.2.4.3. Performing Dynamic Modeling
      • 7.2.4.3.1. To create a patch set:
      • 7.2.4.3.2. To create a contact:
    • 7.2.4.4. Performing Elastic Analysis
      • 7.2.4.4.1. To run the simulation:
      • 7.2.4.4.2. To view the results:
      • 7.2.4.4.3. To check the contour results:
  • 7.2.5. Performing Plastic Analysis
    • 7.2.5.1. Task Objectives
    • 7.2.5.2. Estimated Time to Complete
    • 7.2.5.3. Performing Plastic Modeling (1)
      • 7.2.5.3.1. To create a plastic material:
    • 7.2.5.4. Performing Plastic Analysis (1)
      • 7.2.5.4.1. To run the simulation:
      • 7.2.5.4.2. To view the results:
      • 7.2.5.4.3. To check the contour results:
    • 7.2.5.5. Performing Plastic Modeling (2)
      • 7.2.5.5.1. To create a plastic material:
    • 7.2.5.6. Performing Plastic Analysis (2)
      • 7.2.5.6.1. To run the simulation:
      • 7.2.5.6.2. To view the results:
      • 7.2.5.6.3. To check the contour results:
  • 7.2.6. Analyzing and Reviewing the Results
    • 7.2.6.1. Task Objectives
    • 7.2.6.2. Estimated Time to Complete
    • 7.2.6.3. Analyzing the Plastic Analysis Results
      • 7.2.6.3.1. Theoretical Explanation of Metal Plasticity
      • 7.2.6.3.2. Comparing the Results of Plastic Analyses (1) and (2)
      • 7.2.6.3.3. To compare the plot results:
      • 7.2.6.3.4. Analyzing the Results
    • 7.2.6.4. For Reference
      • 7.2.6.4.1. Multi-linear Models
• 7.3. Bimetal Thermometer (FFlex)
  • 7.3.1. Overview
    • 7.3.1.1. Objective
    • 7.3.1.2. Prerequisites
    • 7.3.1.3. Procedures
    • 7.3.1.4. Estimated Time to Complete
  • 7.3.2. Generating an FFlex body
    • 7.3.2.1. Objective
    • 7.3.2.2. Estimated Time to Complete
    • 7.3.2.3. Opening the RecurDyn Model
      • 7.3.2.3.1. To run RecurDyn and open the initial model:
      • 7.3.2.3.2. To save the model:
    • 7.3.2.4. Creating the Bimetal Mesh
      • 7.3.2.4.1. To create Surface Mesh:
      • 7.3.2.4.2. To create Manual Mesh:
      • 7.3.2.4.3. To create Node Set:
    • 7.3.2.5. To create FDR:
    • 7.3.2.6. Setting Material Property
    • 7.3.2.7. Creating the Patch Set
  • 7.3.3. Creating Boundary and Thermal Conditions
    • 7.3.3.1. Task Objective
    • 7.3.3.2. Estimated Time to Complete
    • 7.3.3.3. Creating the Fixed Joint
    • 7.3.3.4. Creating Convection
  • 7.3.4. Simulating the Model
    • 7.3.4.1. Task Objectives
    • 7.3.4.2. Estimated Time to Complete
    • 7.3.4.3. Creating the Expression Scope
    • 7.3.4.4. Performing Dynamic Analysis
      • 7.3.4.4.1. To run the simulation:
      • 7.3.4.4.2. To view the animation:
      • 7.3.4.4.3. To view scope expression:
    • 7.3.4.5. Comparing the results
      • 7.3.4.5.1. To modify convection:
      • 7.3.4.5.2. To run simulation:
• 7.4. Excavator Tutorial (RFlex)
  • 7.4.1. Getting Started
    • 7.4.1.1. Objective
    • 7.4.1.2. Approach
    • 7.4.1.3. Audience
    • 7.4.1.4. Prerequisites
    • 7.4.1.5. Procedures
    • 7.4.1.6. Estimated Time to Complete
  • 7.4.2. Opening the Initial Model
    • 7.4.2.1. Task Objective
    • 7.4.2.2. Estimated Time to Complete
    • 7.4.2.3. Starting RecurDyn
      • 7.4.2.3.1. To start RecurDyn and open the initial model:
      • 7.4.2.3.2. To save the initial model:
    • 7.4.2.4. Running an Initial Simulation with the Rigid Boom
      • 7.4.2.4.1. To run an initial simulation:
    • 7.4.2.5. Viewing the Results
      • 7.4.2.5.1. To view the results:
  • 7.4.3. Swapping In the RFlex Body
    • 7.4.3.1. Task Objective
    • 7.4.3.2. Estimated Time to Complete
    • 7.4.3.3. Swapping In the RecurDyn RFlex Body
      • 7.4.3.3.1. To swap in the RFlex body:
    • 7.4.3.4. Viewing Stress Contour Plots
      • 7.4.3.4.1. To view a stress contour plot:
  • 7.4.4. Plotting the Results
    • 7.4.4.1. Task Objective
    • 7.4.4.2. Estimated Time to Complete
    • 7.4.4.3. Plotting the Dipper Stick’s Out-of-Plane Tilt
      • 7.4.4.3.1. To plot the out-of-plane tilt:
      • 7.4.4.3.2. To plot the rotational acceleration of the cab:
  • 7.4.5. RFlex Body Review and Tuning
    • 7.4.5.1. Task Objective
    • 7.4.5.2. Estimated Time to Complete
    • 7.4.5.3. Examining the RFlex Body
      • 7.4.5.3.1. To isolate the flexible body to its own layer:
      • 7.4.5.3.2. To examine the modes of the RFlex body:
    • 7.4.5.4. Improving Simulation Performance
      • 7.4.5.4.1. To improve simulation performance:
      • 7.4.5.4.2. To compare the new and old results:
  • 7.4.6. Appendix A : Creating the RecurDyn RFlex Input (RFI) File
    • 7.4.6.1. Task Objective
    • 7.4.6.2. Estimated Time to Complete
    • 7.4.6.3. Preparing the Nastran Bulk Data File
    • 7.4.6.4. Component Mode Reduction Method
    • 7.4.6.5. Superelement Method
  • 7.4.7. Appendix B: Supported FE Elements
    • 7.4.7.1. Ansys Element Library
    • 7.4.7.2. MSC/NASTRAN Element Library
    • 7.4.7.3. I-DEAS Element Library
• 7.5. RFlexGen Crankshaft Tutorial (RFlexGen)
  • 7.5.1. Overview
    • 7.5.1.1. Tutorial Objectives
    • 7.5.1.2. Prerequisites
    • 7.5.1.3. Tasks
    • 7.5.1.4. Estimated Time to Complete
  • 7.5.2. Opening the Initial Model
    • 7.5.2.1. Task Objectives
    • 7.5.2.2. Estimated Time to Complete
    • 7.5.2.3. Opening the RecurDyn Model
      • 7.5.2.3.1. To run RecurDyn and open the initial model:
      • 7.5.2.3.2. To save the initial model:
    • 7.5.2.4. Running the Initial Simulation on the 4-Cylinder Engine Model
      • 7.5.2.4.1. To perform the initial simulation:
      • 7.5.2.4.2. To view the results:
  • 7.5.3. Generating the FFlex Body
    • 7.5.3.1. Task Objectives
    • 7.5.3.2. Estimated Time to Complete
    • 7.5.3.3. Creating the Crankshaft Mesh
      • 7.5.3.3.1. To create the crankshaft mesh:
    • 7.5.3.4. Conducting the Dynamic Analysis on the FFlex Body and Reviewing the Results
      • 7.5.3.4.1. To conduct the dynamic analysis on the FFlex body:
  • 7.5.4. Generating the RFlex Body Using RFlexGen
    • 7.5.4.1. Task Objectives
    • 7.5.4.2. Estimated Time to Complete
    • 7.5.4.3. Running RFlexGen
      • 7.5.4.3.1. To run RFlexGen:
    • 7.5.4.4. Creating the RFlex Body
      • 7.5.4.4.1. To create the RFlex body:
    • 7.5.4.5. Conducting a Dynamic Analysis on the RFlex Body and Reviewing the Results
      • 7.5.4.5.1. To conduct a dynamic analysis on the RFlex body:
    • 7.5.4.6. Running RFlexGen Again
      • 7.5.4.6.1. To increase the number of modes and repeat the analysis, perform the following steps:
    • 7.5.4.7. Replacing an RFlex Body
      • 7.5.4.7.1. To replace an RFlex body:
    • 7.5.4.8. Conducting a Dynamic Analysis on the RFlex Body and Reviewing the Results
      • 7.5.4.8.1. To conduct a dynamic analysis on the RFlex body:
  • 7.5.5. Analyzing and Reviewing the Results
    • 7.5.5.1. Task Objectives
    • 7.5.5.2. Estimated Time to Complete
    • 7.5.5.3. Analyzing the Dynamic Analysis Results
      • 7.5.5.3.1. Analysis of the results obtained from an FFlex body that was generated using the Mesher function
      • 7.5.5.3.2. Comparison of these results with the results obtained using an RFlex body that was generated using RFlexGen
      • 7.5.5.3.3. Comparison of the results after increasing the number of normal modes
      • 7.5.5.3.4. Pros and cons of using an RFlex body generated by RFlexGen