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Cross-section drawing of the MR damper, showing the piston rod, the coil and the fluid chamber.

Adaptive Washing Machine Damper

A feasibility study, design and prototype of a magnetorheological (MR) fluid damper for a Haier washing machine, whose damping force changes with the current applied.

Project stage
Functional prototype
Work type
Client project
Client
Haier

Modelling the physics

  • Cross-section drawing of the damper.
  • Damping force against applied current for four damper configurations, at low, mid and high speed.

MR fluid stiffens in a magnetic field, so a coil inside the damper changes its damping force with the current applied.

We modelled the damper’s fluid and magnetic circuit. We checked which design settings most affected damping force. A planned set of experiments helped us choose a configuration for the prototype.

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