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厚壁圆筒形结构,例如具有电感应加热器或核燃料元件的装置,由于内部加热,有时要承受很大的热应力。这种应力是由内外表面之间很大的温度梯度产生的。如果必须对许多大小不一样的结构进行计算,热应力分析就成了既繁琐又费时的事情。然而,在有包含归一化数据(用于计算圆筒内部的径向、环向和轴向应力)的专用图表的情况下,所需要的计算量就可以显著减少。根据圆筒温度分布和应力分量方程式,计算机能方便地产生这些图表。
Thick-walled cylindrical structures, such as those with an inductive heater or nuclear fuel element, are sometimes subject to significant thermal stresses due to internal heating. This stress is caused by a large temperature gradient between the inner and outer surfaces. If you have to calculate the size of many different structures, thermal stress analysis has become a cumbersome and time-consuming thing. However, with a dedicated chart containing normalized data (used to calculate the radial, circumferential and axial stresses inside the cylinder), the amount of computation required can be significantly reduced. According to the cylinder temperature distribution and stress component equation, the computer can easily generate these charts.