应力

The formulas are derived from the classical theory of thin shells, The thermal stresses for three kinds of boundary conditions are calculated separately by the theoretical formulas derived from a cubic polynomial temperature distribution and by the finite element method, SAP5 program.

并以三次多项式温度分布为例，计算了三种边界条件(自由端、固支端、简支端)下，理论的和有限元的热应力曲线，对固支端进行了热应力实验，绘制了实验曲线。

Front stress distribution of plate was all higher than posterior. The stress distribution of plate Ⅱ was not most uniform.

背伸20°位3种固定方式的钢板应力分布都不均匀，钢板前部应力水平均高于后部。

The strong link of the stress distribution of the compact issued from a roll press fed by a single screw with the periodicity of the screw was demonstrated and explained.

对强烈环节紧凑的应力分布的解释和说明，这些应力是分布在由一根周期旋转的螺杆喂料的滚压机上的。

If a word has three or more syllables, there is a primary stress and a secondary stress.

如果一个词有三个或更多的音节，有一个主应力和二次应力。

This is useful in evaluating the primary membrane stress and the secondary bending stress in vessels.

这有助于计算容器的一次薄膜应力和二次弯曲应力。

What is primary or secondary stress?

什么是一次应力、二次应力？

In evaluating the primary membrane stress and the secondary bending stress in vessels.

计算容器的一次薄膜应力和二次弯曲应力。

For lower chord,the maximum secondary stress was less than 20 percent of the primary stress and the effect is small, therefore it can be neglected in design.

对于下弦杆，次应力的最大值均不超过主应力的20%，影响较小，设计时可不考虑。

The failure mode and failure mechanism of hydraulic pump are analyzed in this paper,and then the temperature,pressure and rotating speed are decided primary factors for synthesis stress and the conclusion that the synthesis stress can be used in validating the life of the pumps is received.

通过对柱塞泵的故障模式及故障机理分析，确定了温度、压力和转速是与敏感应力相关的主要因素，并得出了利用敏感应力可以进行液压泵寿命的验证的结论。

This paper analyzes the change of the primary stress in the vessel body and vessel head and the influence on the safety property of pressure vessel caused by the whole shape error based on finite element analysis. Some universal results are achieved.

本文以有限元应力计算为基础，分析了整体形状偏差所造成的筒体和封头的一次应力的变化情况及其对压力容器安全性能的影响，得出了一些具有普遍意义的结果。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷