论文部分内容阅读
PC—1500计算机是一种袖珍式电子计算机,使用BASIC语言。采用此机计算旋转体锻件重量十分方便。而且计算精度较高,这对精密模锻时锻件重量的确定是很有意义的。现介绍如下。 1.计算原理一般旋转体锻件(图1)均可看成或化分成若干个带圆角的圆台组成的构件。圆台的体积(图2)可用V=(π/3)H(r_1~2+r_2~2+r_1r_2)计算。圆角的体积用“旋转体的体积=截面积×截面积重心的周长”的概念来计算(图3)。即(?)其中(?)为重心高度,A为截面积。在图3中(?)=y+h。因图形关于x=y对称,计算对y轴的距
The PC-1500 computer is a pocket-sized computer that uses the BASIC language. This machine is used to calculate the weight of rotating body forgings is very convenient. And the calculation accuracy is high, which determines the weight of the forging precision forging is very meaningful. Now introduced as follows. 1. Calculation Principle General rotating body forgings (Figure 1) can be seen as or into a number of components with rounded truncated cone. The volume of the truncated cone (Figure 2) can be calculated using V = (π / 3) H (r_1 ~ 2 + r_2 ~ 2 + r_1r_2). The volume of the fillet is calculated using the concept of “volume of the rotating body = cross-sectional area × circumference of the center of gravity of the cross-sectional area” (FIG. 3). (?) Where (?) Is the height of the center of gravity and A is the cross-sectional area. In Figure 3 (?) = Y + h. Calculate the distance to the y-axis due to the graph’s symmetry about x = y