压力试验时薄壁球形容器静强度的可靠度

Reliability for Static Strength of Thin-Wall Spherical Vessel during Pressure Test

应用可靠性设计方法,在最苛刻的气压与液压试验条件下,对球形容器初始静强度的可靠度范围进行了定量分析;结果表明:①初始屈服强度在气压试验时的可靠度为Rs1=94.630%～98.809%,在液压试验时为Rs2=78.81%～86.65%;②初始爆破强度在气压试验时的可靠度为Rb1=99.801 2%～99.999 998 93%,在液压试验时为Rb2=98.030%～99.999 570 6%.

By using reliability design method, the reliability range of virgin static strength of spherical vessel was quantitatively analyzed under the most severe pneumatic and hydraulic test conditions. The result shows that： The reliability range of virgin yield strength is equal to Rs1 = 94.630%98. 809% under pneumatic test, and Rs2 = 78.81% -86.65 % under hydraulic test; The reliability range of virgin explosion strength is equal to Rb1=99.801 2 % - 99. 999 998 93 % under pneumatic test and Rb2=98. 030 % -99. 999 570 6 % under hydraulic test.