Open AccessAnalysis of pipeline fatigue performance under random vibration load
Author(s) -
Chuanling Jin,
Yu Wan,
Qingxu Yang,
Jie Xu
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1633/1/012074
Subject(s) - vibration fatigue , random vibration , structural engineering , modal analysis , vibration , frequency domain , pipeline (software) , engineering , fatigue testing , computer science , acoustics , finite element method , mechanical engineering , physics , computer vision
As one of the most important equipments in power plant, the mechanical properties of steam pipe were analysed in this paper. Random vibration theory and Miner linear cumulative damage theory as well as frequency-domain fatigue analysis method were adopted, modal analysis and fatigue performance analysis of the in-service steam pipe were carried out with ANSYS, calculated first ten natural frequencies and cumulative damage under random excitation use Steinberg three-interval method. Results show that no fatigue failure will occur under this excitation load, the random vibration frequency-domain fatigue analysis method can effectively evaluate the fatigue performance of steam pipe, and provide a reference for the pipeline random vibration fatigue analysis.