High-precision rigid-flexible coupling dynamics simulation method for aero-engine movement mechanism

• Main Authors: YANG CHANGQI, SONG HUITAO, CAO HANG, GE CHANGCHUANG, XU CHUNYANG
• Format: Patent
• Language: Chinese; English
• Published: 10.10.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention belongs to the technical field of aerospace, and particularly relates to a high-precision rigid-flexible coupling dynamics simulation method for an aero-engine movement mechanism, and the method comprises the steps: S1, carrying out the multi-rigid-body modeling of the movement mechanism; s2, kinematic pairs between parts are added to the multi-rigid-body model of the motion mechanism, loads and driving are applied, and a multi-rigid-body dynamic model is obtained; s3, performing multi-rigid-body dynamic simulation on the multi-rigid-body dynamic model, and when the multi-rigid-body dynamic model cannot be simulated, debugging the multi-rigid-body model until the multi-rigid-body dynamic model is successfully simulated; s4, a finite element model is established for the movement mechanism, and parts needing to be flexible in the movement mechanism are judged; and S5, performing flexibility processing on the corresponding parts of the parts needing flexibility in the multi-rigid-body dynamic model