| 摘要 |
Containment casings inhibit release of fragments as a result of fragmentation of a component such as a fan blade within a gas turbine engine. By providing an inner containment ring 32 suspended upon a cellular structure 33 whereby the ring 32 preferentially deflects and deforms into the cellular structure 33 rather than allow penetration of a fragment, that fragment is contained. The depth of the cellular structure 33 is such as to allow deflection of the ring 32 and so absorb energy and contain the fragment in use. Generally an outer casing 31 or other structural feature is provided to stabilize the cellular structure 33 to allow energy absorption. The outer casing 31 also provides a final barrier for containment of fragments in use.
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