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设计螺旋弹簧时,要对一组联立方程进行反复计算后,才能选定最佳尺寸参数,这是很费时的。现在,这个设计过程可用微型计算机通过BASIC程序自动进行。该程序适用于两端无效圈数为2的圆截面线材螺旋弹簧。程序在读入描述弹簧的各种数据后开始计算。第一步,程序根据下式算出弹簧刚度K和自由长度L_f, K=(P_2-P_1)/(L_2-L_1) L_f=L_1+P_1/K 接着,程序通过140行到200行之间的区间半分检索法,对390行到400行之间的联立方程: D=D_0-d C=D/d
When designing a helical spring, it is time consuming to select the optimal size parameter after repeatedly calculating a set of simultaneous equations. Now, this design process can be done automatically by a microcomputer using the BASIC program. This procedure applies to round wire coil springs with an invalid number of turns at both ends. The program begins the calculation after reading various data describing the spring. In the first step, the program calculates the spring rate K and the free length L_f according to the following equation: K = (P_2 -P_1) / (L_2-L_1) L_f = L_1 + P_1 / K Then, the program passes the interval between 140 and 200 lines Semi-sub-retrieval method, simultaneous equations between 390 lines and 400 lines: D = D_0-d C = D / d