利用有限元法对飞机闭合薄壁剖面杆结构进行刚度计算，其结果与全尺寸试验值吻合较好。

The rigidity calculation of the closed thin - walled section rod structure of aircraft is carried out by using finite element method and the result tallies with the full - scale test value well.

youdao

为了改进PD C钻头设计，在全尺寸试验的基础上，对PD C钻头单齿切削过程进行了试验研究。

The single tooth cutting course of a PDC drilling bit is studied. The research is of great significance for improving PDC drilling bit design.

youdao

本文用前三种方法计算受气功加热的机身实心框的温度分布，井与全尺寸试验结果比较，得出满意的结果。这说明文中采用的各种处理方法是可行的。

This paper calculates the temperature distribution in plate frame of fuselage subjected to aerodynamic heating by means of the former three methods. The numerical results turn out to compare f…

youdao