Effect of Peierls-Nabarro force on dynamic responses of semi-infinite bar
The drillstring in oil drilling engineering was simplified as a semi-infinite bar. Through taking account of the Peierls-Nabarro (P-N) force and viscous effect of solid, the dynamic response of die bar was simulated under harmonic driving at one end. With the physical properties specified, it is found that all the particles of the bar have the same qualitative characters, and vibrating amplitude decreases down the bar. Along with the amplitude of P-N force increasing, the dynamic responses show the 1T-periodic, quasi-periodic, chaotic, 13T-periodic, chaotic, 1T-periodic. It appears that the particles of the bar reach chaotic range through quasi-periodic motion.
Guang-hui Zhao Nian-mei Zhang Gui-tong Yang Zheng Liang
Mechatromc Engineering College, Southwest Petroleum University, Chengdu 610500, China Institute of Applied Mechanics, Taiyuan University of Technology, Taiyuan 030024, China
国际会议
The 5th International Conference on Nonlinear Mechanics(第五届国际非线性力学会议)
上海
英文
566-570
2007-06-11（万方平台首次上网日期，不代表论文的发表时间）