Applied Mathematics and Mechanics (English Edition) ›› 2024, Vol. 45 ›› Issue (2): 239-260.doi: https://doi.org/10.1007/s10483-024-3083-6

• Articles • Previous Articles     Next Articles

Parametric resonance of axially functionally graded pipes conveying pulsating fluid

Jie JING1, Xiaoye MAO1,2,*(), Hu DING1,2, Liqun CHEN1,2   

  1. 1Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai Frontier Science Center of Mechanoinformatics, Shanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science, Shanghai University, Shanghai 200444, China
    2Shanghai Institute of Aircraft Mechanics and Control, Shanghai 200092, China
  • Received:2023-10-07 Online:2024-02-01 Published:2024-01-27
  • Contact: Xiaoye MAO E-mail:xmao3@shu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(12002195);the National Natural Science Foundation of China(12372015);the National Science Fund for Distinguished Young Scholars of China(12025204);the Program of Shanghai Municipal Education Commission of China(2019-01-07-00-09-E00018);Project supported by the National Natural Science Foundation of China (Nos. 12002195 and 12372015), the National Science Fund for Distinguished Young Scholars of China (No. 12025204), and the Program of Shanghai Municipal Education Commission of China (No. 2019-01-07-00-09-E00018)

Abstract:

Based on the generalized Hamilton's principle, the nonlinear governing equation of an axially functionally graded (AFG) pipe is established. The non-trivial equilibrium configuration is superposed by the modal functions of a simply supported beam. Via the direct multi-scale method, the response and stability boundary to the pulsating fluid velocity are solved analytically and verified by the differential quadrature element method (DQEM). The influence of Young's modulus gradient on the parametric resonance is investigated in the subcritical and supercritical regions. In general, the pipe in the supercritical region is more sensitive to the pulsating excitation. The nonlinearity changes from hard to soft, and the non-trivial equilibrium configuration introduces more frequency components to the vibration. Besides, the increasing Young's modulus gradient improves the critical pulsating flow velocity of the parametric resonance, and further enhances the stability of the system. In addition, when the temperature increases along the axial direction, reducing the gradient parameter can enhance the response asymmetry. This work further complements the theoretical analysis of pipes conveying pulsating fluid.

Key words: pipe conveying fluid, axially functionally graded, supercritical resonance, multi-scale method, parametric resonance

2010 MSC Number: 

APS Journals | CSTAM Journals | AMS Journals | EMS Journals | ASME Journals