HIGH-STRENGTH, REVOLUTION-SYMMETRICAL CASING

摘要

This casing is bounded by a cylindrical or frustro-conical wall comprising corrugations (3) turned towards the outside, regularly spaced and oriented along the generatrices, the shape of these corrugations (3) being defined so that each substantially matches the shape of a half-wave of the critical circumferential buckling destruction mode of the corresponding smooth-skinned casing under external lateral pressure, with the number of corrugations equal to twice the circumferential mode.