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三峡水电站引水压力钢管焊接残余应力计算
Welded residual stress calculation of water delivery penstocks of Three Gorges Hydroelectric Station
【摘要】 根据板壳和圆柱壳体理论 ,以及焊接收缩力模型 ,推出圆柱壳体类构件环缝焊接残余应力的计算公式 .用所导出的公式 ,对三峡水电站引水压力钢管环缝焊接残余应力作了计算 ,其计算结果与有关权威资料计算、测试结果吻合 .本计算结果为分析三峡引水压力钢管焊接残余应力的影响 ,以及焊接工艺设计 ,提供了理论参考 .
【Abstract】 According to the theory of plate shells and the welding contraction model, the calculation formulas of the cylinder shell’s welded residual stresses are derived. Using these formulas, the welded residual stresses of the water delivery penstocks are computed. The calculated results provide the theoretical consult for analysing affects of welded residual stresses and designing welding technology of the Three Gorges Project’s water delivery penstocks.
【关键词】 板壳理论;
圆柱壳体;
焊接残余应力;
【Key words】 plate shells theory; cylinder shells; welded residual stresses;
【Key words】 plate shells theory; cylinder shells; welded residual stresses;
- 【文献出处】 武汉水利电力大学学报 ,JOURNAL OF WUHAN UNIVERSITY OF HYDRAULIC AND ELECTRIC ENGINEERING , 编辑部邮箱 ,2000年03期
- 【分类号】TG404
- 【被引频次】4
- 【下载频次】123