| 摘要 |
A casing assembly having: a first casing part (110); a second casing part (120); wherein the first casing part is joined to the second casing part by a fixation device that includes: a barrel nut (140) inserted into a hole in the first casing part such that a hole in the barrel nut extends in a direction that is transverse to the direction of insertion of the barrel nut into the hole; a bolt (132) which extends into the first casing part, into the hole in the barrel nut, and into the second casing part, wherein the bolt engages with the barrel nut so as to join the first casing part to the second casing part; wherein the barrel nut includes a first portion and a second portion, wherein the first portion of the barrel nut is structurally weaker than the second portion of the barrel nut such that, if a predetermined load between the first casing part and the second casing part is exceeded, the first portion of the barrel nut becomes crushed whilst the second portion of the barrel nut remains engaged with the bolt. The casing assembly may be included in a gas turbine engine. |
