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A high damping rubber bearing dissipates energy through

  • A.the compression of a fluid through an orifice
  • B.hysteresis within the rubber compound itself
  • C.the yielding of a lead core at its centre
  • D.friction between sliding steel surfaces

Answer: B

Fillers added to the compound give the rubber a fat hysteresis loop, so the bearing damps without any separate device. The properties depend on temperature and on the strain history, which is why such bearings are tested extensively before acceptance.

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