Abstract: This device comprises an immobilizing device of a first portion of the shaft, the shaft extending along a first axis, and a movement device of a second portion of the shaft so as to load the shaft in bending. The moving device comprises a first cylinder, a second cylinder, and a connecting device configured to form, between the shaft and one end of the first cylinder, a first connection prohibiting a translation perpendicular to the first axis and allowing a rotation around the first axis, and to form, between the shaft and one end of the second cylinder or between the end of the first cylinder connected to the shaft and one end of the second cylinder, a second connection prohibiting a translation perpendicular to the first axis and allowing a rotation around a second axis parallel to the first axis.

Abstract: This device comprises an immobilizing device of a first portion (4A) of the shaft, the shaft (4) extending along a first axis (A1), and a movement device of a second portion (4B) of the shaft so as to load the shaft (4) in bending. The moving device comprises a first cylinder (10), a second cylinder (12), and a connecting device (14) configured to form, between the shaft (4) and one end of the first cylinder (10), a first connection (16) prohibiting a translation perpendicular to the first axis (A1) and allowing a rotation around the first axis (A1), and to form, between the shaft (4) and one end of the second cylinder (12) or between the end of the first cylinder (10) connected to the shaft (4) and one end of the second cylinder (12), a second connection (18) prohibiting a translation perpendicular to the first axis (A1) and allowing a rotation around a second axis (A2) parallel to the first axis (A1).