A suspension of an annular secondary structure on a primary structure, in the form of a spoke-type centering device, has at least three sliding guides distributed uniformly over the structure circumference. Each sliding guide allows at least a linear relative movement of the structures transversely to their axial direction. The linear direction of movement of each sliding guide runs, in relation to the structure-related radial direction at the location of the sliding guide, at an angle having radial and tangential direction components.
A turbine casing structure having an outer casing, and an inner casing disposed in the outer casing, comprising: a bush disposed in a concave portion formed in the inner casing; an eccentric shaft inserted into a communication hole formed in the outer casing, and having a front end disposed in contact with the bush; and a fixing member disposed in engagement with the eccentric shaft, and fixed to the outer casing.
A method for assembling a gas turbine engine includes coupling an axisymmetric structure within the gas turbine engine, wherein the axisymmetric structure includes a plurality of mounting bushings extending from a radially outer surface of the axisymmetric structure, inserting a first quantity of fixed pins at least partially into a respective mounting bushing to facilitate securing the axisymmetric structure within the gas turbine engine, and inserting a second quantity of floating pins at least partially into a respective mounting bushing to facilitate each floating pin moving in both an axial and tangential direction with respect to a gas turbine engine centerline axis.
