挠性油管在缠绕过程中的应变能计算

Strain energy of coiled tubing during reeling

推导了用于确定挠性油管在缠绕过程中的应变能计算公式。挠性油管在缠绕过程中的大部分的应变能都被耗散掉 (转化成热 ) ,只有一小部分应变能可以恢复。可恢复的应变能量是一种在缠绕过程中被储存的弹性能。在典型情况下 ,被储存的弹性能占缠绕过程中总应变能的 5 %～ 15 % ,其具体数取决于挠性油管及卷筒的尺寸。

In this paper,formula for determining strain energy of coiled tubing during reeling is derived.Most of the strain energy during reeling is dissipated(converted into heat).Only a small part of the total strain energy is recovered.The recovered energy is the elastic energy that is stored during reeling.The stored elastic energy typically accounts for 5% to 15% of the total strain energy during reeling,depending upon tubing and spool sizes as well as the mechanics properties of tubing material.