Case Study

Low Pressure Dynamic Seal Design

Challenge

  • 3D simulations are time consuming, and expensive to execute, and it is difficult to extract actionable outputs
  • Complex barrel valve with demanding sealing and actuation requirements

KDPD Approach

  • Reconsider simulation environment and constraints
  • Utilize 2D simulations and 2D sweep along full-length of perimeter
    • 2D simulation for reduced computational burden and easy iteration
    • This also improved fundamental understanding because of the relative ease of identifying trends and tendencies
    •  
Low pressure dynamic seal design results

Results

    • Alternate lip-seal geometries that create lower friction forces at a given interference – more robust sealing without impacting actuating torque

    • 2D and sweep model permitted efficient exploration of design space and sensitivity to manufacturing variability
    • Outcomes:

      • Improvement of final seal design

      • More direct path towards final seal design

Key Takeaways

  • Access to data on expected design capability early on in project would have improved project outcomes:
        • Improvement of final seal design
        • More direct path towards final seal design

Design iteration in a virtual implementation – quick and efficient.

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