Applied Mathematics and Mechanics (English Edition) ›› 2015, Vol. 36 ›› Issue (6): 729-746.doi: https://doi.org/10.1007/s10483-015-1946-6

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Effects of supported angle on stability and dynamical bifurcations of cantilevered pipe conveying fluid

Chunbiao GAN1, Shuai JING1, Shixi YANG1, Hua LEI2   

  1. 1. The State Key Laboratory of Fluid Power Transmission and Control, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China;
    2. Department of Engineering Mechanics, Zhejiang University, Hangzhou 310027, China
  • 收稿日期:2014-06-08 修回日期:2014-10-25 出版日期:2015-06-01 发布日期:2015-06-01
  • 通讯作者: Chunbiao GAN E-mail:cb_gan@zju.edu.cn
  • 基金资助:
    Project supported by the Science Fund for Creative Research Groups of the National Natural Science Foundation of China (No. 51221004), the National Natural Science Foundation of China (Nos. 11172260, 11072213, and 51375434), and the Higher School Specialized Research Fund for the Doctoral Program (No. 20110101110016)

Effects of supported angle on stability and dynamical bifurcations of cantilevered pipe conveying fluid

Chunbiao GAN1, Shuai JING1, Shixi YANG1, Hua LEI2   

  1. 1. The State Key Laboratory of Fluid Power Transmission and Control, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China;
    2. Department of Engineering Mechanics, Zhejiang University, Hangzhou 310027, China
  • Received:2014-06-08 Revised:2014-10-25 Online:2015-06-01 Published:2015-06-01
  • Contact: Chunbiao GAN E-mail:cb_gan@zju.edu.cn
  • Supported by:
    Project supported by the Science Fund for Creative Research Groups of the National Natural Science Foundation of China (No. 51221004), the National Natural Science Foundation of China (Nos. 11172260, 11072213, and 51375434), and the Higher School Specialized Research Fund for the Doctoral Program (No. 20110101110016)

摘要: The effects of the supported angle on the stability and dynamical bifurcations of an inclined cantilevered pipe conveying fluid are investigated. First, a theoretical model of the pipe is developed through the force balance and stress-strain relationship. Second, the response surfaces, stability, and critical lines of the typical hanging system (H-S) and standing system (S-S) are discussed based on the modal analysis. Last, the bifurcation diagrams of the pipe are presented for different supported angles. It is shown that pipes will undergo a series of bifurcation processes and show rich dynamic phenomena such as buckling, Hopf bifurcation, period-doubling bifurcation, chaotic motion, and divergence motion.

关键词: response characteristics, supported angle, cantilevered pipe conveying fluid, modal analysis, dynamical bifurcation

Abstract: The effects of the supported angle on the stability and dynamical bifurcations of an inclined cantilevered pipe conveying fluid are investigated. First, a theoretical model of the pipe is developed through the force balance and stress-strain relationship. Second, the response surfaces, stability, and critical lines of the typical hanging system (H-S) and standing system (S-S) are discussed based on the modal analysis. Last, the bifurcation diagrams of the pipe are presented for different supported angles. It is shown that pipes will undergo a series of bifurcation processes and show rich dynamic phenomena such as buckling, Hopf bifurcation, period-doubling bifurcation, chaotic motion, and divergence motion.

Key words: supported angle, response characteristics, cantilevered pipe conveying fluid, modal analysis, dynamical bifurcation

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