Analysis of Vibrating Natural Frequency of Pressure Pipeline

Abstract:

The pressure pipeline is simplified as the beam model with two simple supported ends. The mathematical model is established, considering influence of the fluid-solid coupling vibration. Then the critical flow velocity is obtained by calculation and solving. By analyzing the practical numerical example，the influence of physical parameters on the first three-order natural frequency is discussed. Using Matlab software for programming, the instability condition of pressure pipeline is obtained, which is consistent with the result of numerical calculation.

• Periodical: Advanced Materials Research (Volume 421)
• Pages: 98-101
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.421.98
• Online since: December 2011
• Authors: Ting Yue Hao
• Keywords: Critical Flow Velocity, Fluid Solid Coupling, Natural Frequency, Pressure Pipeline

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