Transactions of Materials and Heat Treatment

Title：Optimization on ring compression test based on multi-island genetic algorithm

Authors： Yin Qiang Hu Chengliang Zhao Zhen

Unit： Shanghai Jiao Tong University

KeyWords： ring compression test multi-island genetic algorithm discrete degree calibration curve friction factor

ClassificationCode：TG316

year,vol(issue):pagenumber：2017,42(5):108-112

Abstract：

The ring compression test is a common method to measure friction factor, and the geometric dimension of the ring directly affected the sensitivity of the testing method. Taking the difference of the variation between inner diameters under two different frictional conditions as the goal, the geometric dimension of the ring was optimized based on multi-island genetic algorithm and FEM simulation, and the ratio of the optimized scheme was 30∶13∶5. However, compared with the traditional scheme (6∶3∶2), the difference of the inner diameter variation increased by 47.31%. Based on the improvement, a further comparison between the optimized scheme and the traditional scheme was conducted from the results of the equivalent strain fields, distributions of metal streamline, normal pressures and calibration curves, and the advantages of the optimized scheme were analyzed. Finally, according to the optimized geometric dimension, the practical experiment was also carried out with three friction factors measured under different lubricating conditions. The result shows that this testing method is feasible.

Funds：

国家自然科学基金资助项目（51475294）

殷强(1991-)，男，硕士研究生胡成亮(1980-)，男，博士，副研究员

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