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为了模拟管端的缩口过程,本文建立了该过程的数学模型,提出了一种近似数值分析的方法——逐步分析法。作者编制了计算程序并用微机对缩口过程进行了模拟。为验证模拟结果的准确性,作了铝合金管材的缩口实验。结果表明:①计算机模拟结果与实验结果吻合良好;②本文所建立的模型简单,计算量小,计算时间短;③能在微机上实现对过程的模拟,便于应用。
In order to simulate the process of necking at the pipe end, this paper establishes the mathematical model of the process and presents a method of approximate numerical analysis - stepwise analysis. The author compiles the calculation program and simulates the necking process by computer. In order to verify the accuracy of simulation results, a necking experiment of aluminum alloy pipe was made. The results show that: ① The results of computer simulation are in good agreement with the experimental ones; ② The model established in this paper is simple, the calculation is small and the calculation time is short; ③ The simulation of the process can be realized on microcomputer, which is convenient for application.