Method of producing suspension for a structure in a turbojet engine using a hyperstatic trellis with pre-stressed link elements

• Main Authors: NICOLAS FLORENT, FRANCOIS ROBERT BELLABAL
• Format: Patent
• Language: English
• Published: 25.03.2015
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; ENGINE PLANTS IN GENERAL; GAS-TURBINE PLANTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; JET-PROPULSION PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ENGINES; WEAPONS

A method of manufacturing a suspension assembly for a structure in a turbojet engine is provided. The assembly comprises: a first structure 23, arranged to be rigidly connected to a housing of a turbojet engine; a second annular structure 21 surrounding the first structure 23; and a hyperstatic trellis of connecting rods 40a, 40b, 40c, 40d, 40e, 40f maintaining the first structure 23 relative to the second 21. The method comprises a step of mounting the connecting rods of the hyperstatic trellis between the structures 21, 23 and a step for pre-stressing at least one of the connecting rods to a predetermined level. The pre-stressing step is carried out before the mounting of the connecting rod between the structures. Reference is also made to a device which is suitable for mounting the pre-stressed connecting rods.