摘要
根据旋转薄壳的无矩理论,将弧形挠性接管当作旋转薄壳处理,建立了弧形管的运动方程和弹性方程,并结合精细积分法,推导出弧形挠性接管轴向机械阻抗的计算方法;给出了弧形管的阻抗曲线,比较了与直管阻抗曲线的变化趋势,并与有限元结果进行了对比分析,验证了其可行性,为深入研究弧形管的阻抗特性提供了一种新思路。
Based on the non-moment theory of a revolutionary thin shell, the motion and elastic equa- tions of the arc-type flexible pipe are established. Combined with the precise integration method, a method of calculating its axial mechanical impedance is derived. Through comparing its plotted me- chanical impedance curve with the straight flexible and the finite element results, the results show that the proposed method is feasible and practicable, which will provide a new idea for future study on the impedance characteristics of arc-type flexible pipe.
出处
《海军工程大学学报》
CAS
北大核心
2015年第6期47-50,92,共5页
Journal of Naval University of Engineering
基金
教育部"新世纪优秀人才支持计划"资助项目
关键词
弧形管
薄壳理论
精细积分
机械阻抗
arc flexible pipe
thin shell theory
precise integration method
mechanical impedance
