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Patent

Shroud structure for turbine rotor blades and the like

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TLDR
An improved honeycomb shroud for rotor blades for turbines and similar devices was proposed in this paper, where the rub tolerance of the shroud was increased by making the honeycomb less rigid and more resilient and yieldable at the potential rubbing surface, with added strength at the region of attachment to the support member.
Abstract
An improved honeycomb shroud for rotor blades for turbines and similar devices, wherein the rub-tolerance of the shroud is increased by making the honeycomb less rigid and more resilient and yieldable at the potential rubbing surface, with added strength at the region of attachment to the support member.

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References
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