薄壁筒体卧置状态圆度的探索

Explore for roundness of thin-walled cylinder shell in horizontal condition

简述了筒节圆度对壳体制造质量的影响、产生圆度的原因、测量筒节圆度的方法和确保筒节圆度的措施。提出了薄壁筒体卧置状态自重变形量的计算公式,可以较准确地知道筒节自重对筒节圆度影响的程度。

The effect of roundness of cylindrical shell on the quality of shell manufacturing and the causes resulting in roundness are described. The methods for measuring the roundness and the measures for insuring it are put forward. The formulas for calculating the amount of deadweight deformation of cylindrical shell with small thickness in horizontal condition are given, which is helpful to find out the effects of deadweight on the roundness accurately.