Sprocket Rocket Testimonials

The template is really nice and offers quite a large set of options. Its beautiful and the coding is done quickly and seamlessly. Thank you!

Author

Chris Sanford

Product Designer,
Google

Ive had the pleasure of working with Sprocket Rocket since its inception and find it to be an invaluable tool in helping modernize our HubSpot build process.

Author

Gabrielle Francis

Product Designer, Google

I am using Sprocket Rocket for my new project and love every bit of it. While the great design convinced me in the first place, it is also a professional template to work with in the long run.

Author

Denisse Atkinson

Product Designer, Google

I think of this as a design resource that really helps you find the vision on sections and pages that often can seem boring to design. It does a great job of providing you alternative options that you can easily extend.

Author

Justin Galloway

Product Designer, Google

I had a great experience working with the team. I quickly learned how to use the tool on my own and if I ever got stuck, they were there to answer my questions. Would definitely recommend!

Author

Kaila Terrell

Product Designer, Google

Simulate Soft Closure Systems for Accurate Performance Analysis

Abstract

Soft closure systems, commonly found in furniture for smooth and silent operation, rely on deformable pistons moving in a viscous fluid for dampening. This study investigates the pressure forces acting on the damping sub-system by integrating fluid flow simulation (Particleworks) with flexible multi-body dynamics (RecurDyn). Using a coupled approach, the simulation results were compared against experimental data, demonstrating an approximately 20% deviation, validating the effectiveness of the methodology.

Soft closure systems1

Introduction

Soft closure systems enhance the longevity and comfort of furniture by providing controlled dampening. The system consists of a deformable piston, fluid-filled housing, and dampening mechanisms. This study aims to simulate the interaction of fluid dynamics and structural deformation to analyze performance under operating conditions.

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Methodology

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Simulation Setup:

  1. Fluid Simulation:

    • Viscous, non-Newtonian fluid flow modeled using Particleworks.
    • Open boundary conditions and particle size optimized for narrow gap simulation.

  2. Flexible Multi-Body Simulation:

    • Structural deformation of disks modeled in RecurDyn.
    • Coupling with Particleworks to compute forces and pressures dynamically.

  3. Coupled Analysis:

    • Iterative exchange of displacement, velocity, and pressure data between Particleworks and RecurDyn to simulate fluid-structure interaction accurately.

Simulation Parameters:

  • Piston velocity: 400 mm/s
  • Force response analyzed as a function of piston position.
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Results

  1. Simulated Force: ~110 N
  2. Experimental Force: ~90 N

The results demonstrated:

  • A good correlation between simulated and experimental data (~20% deviation).
  • Real-time feedback of fluid pressure and structural deformation improved simulation accuracy.
  • The piston’s x-load exhibited realistic behavior, validating the coupled simulation approach.

Discussion

The coupled simulation approach using Particleworks and RecurDyn provided valuable insights into the dynamics of soft closure systems:

  • Accurate representation of fluid-structure interactions.
  • Efficient identification of forces impacting the system performance.
  • Minor deviations attributed to material and fluid property assumptions in simulation.

Conclusion

This study demonstrates the viability of simulating soft closure systems using a unique coupling approach. The results align closely with experimental data, showcasing the effectiveness of Particleworks and RecurDyn in capturing complex interactions. The methodology offers a reliable, cost-effective alternative to physical testing for optimizing dampening systems.

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