By using the method of boundary layer, it discusses the axissymmetry problems of the combines rotary shell when its first curvature is in constant.
利用边界层方法，讨论了第一主曲率为常数的组合旋转壳的轴对称问题。
2
The flexural vibration of a circular ring that is of axissymmetry is analyzed and calculated, the solid frequency expression of the flexural vibration is obtained.
对一类轴对称圆环的面内弯曲振动进行了分析计算，给出了圆环面内弯曲振动固有频率表达式。
3
The thrust characteristics of axissymmetry nozzle were mainly measured in test. For the nozzle having a vectoring angle, the deflection efficiency was measured too.