弧形结构旋转薄壳机械阻抗计算方法研究  

A study of calculation method for mechanical impedance of arc-structure revolution thin-shell

作　　者：邓杰[1,2] 周炜[1,2] 帅长庚[1,2] 

机构地区：[1]海军工程大学振动与噪声研究所,武汉430033 [2]海军工程大学船舶振动噪声重点实验室,武汉430033

出　　处：《海军工程大学学报》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

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.

关 键 词：弧形管 薄壳理论 精细积分 机械阻抗 

分 类 号：TH703[机械工程—仪器科学与技术] O343[机械工程—精密仪器及机械]