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微型计算机在机床热变形测试中的应用已愈来愈广泛,本文就利用微机进行二维温度场测试时,如何处理边界节点及用有限差分法计算出内节点温度后,怎样用微机绘制温度场等温线的方法作一些新的探讨。 利用计算机绘制温度场等温线是采用以直代曲的原理,即在一个小距离内用直线代替曲线。由于等温线一般为一光滑曲线,在用有限差分法计算内节点温度值时,若所划分的
Microcomputer has been more and more widely used in thermal deformation testing of machine tools. In this paper, how to process the boundary nodes and calculate the temperature of the inner nodes by the finite difference method when using the computer to conduct the two-dimensional temperature field test, how to draw the temperature field Isotherm method for some new discussions. Using computer to draw the temperature field isotherm is used to direct the principle of the song, that is, in a small distance with a straight line instead of the curve. As the isotherm is generally a smooth curve, when using the finite difference method to calculate the temperature of the inner node, if the divided