Supervisor:
Southwest Ordnance Industry Bureau
Organizer:
Chongqing Ordnance Industry Society
Chongqing University of Technology
Chongqing University of Technology
Time variant resonance reliability and sensitivity analysis of pipes conveying fluid considering dynamic corrosion
| DOI: | 10.11809/bqzbgcxb2024.01.021 |
| Keywords: | pipe conveying fluid; dynamic corrosion; resonance reliability; sensitivity analysis; Kriging model |
| Abstract: | Considering that the pipe is corroded dynamically in complex environment, the change of the thickness lead to the change of the natural frequency of the pipe, which may result in resonance. Therefore, considering the time variation and the uncertainties in the structural parameters, fluid parameters and external excitation frequency of the pipe, the Galerkin method is employed to solve the natural frequency of the pipe. Then, the time variant anti resonance performance function is established. The time variant reliability algorithm based on adaptive Kriging model is introduced to solve the time variant resonance failure probability efficiently. The accuracy of the method is verified by comparing with the MCS method and SL ALK method. The effects of the density and the velocity of the fluid on time variant resonance failure probability are analyzed. |
| Published: | 2024-01-28 |