【摘要】：基于離散體系的移動元胞自動機方法,并考慮多種填充材料的影響,構建了重型車輛傳動系統的復合材料密封環(huán)的離散模型,選擇聚四氟乙烯和聚醚醚銅兩種復合材料,進行密封摩擦副微觀摩擦磨損過程的可視化對比仿真。通過仿真直觀觀察密封表面微觀結構的動態(tài)演化,及其機械混合層的形成和發(fā)展過程。通過磨損元胞的統計計算,分析在模擬時間內兩種復合材料密封環(huán)的微觀磨損情況。同時開展了密封環(huán)摩擦磨損試驗,通過掃描電子顯微鏡觀察兩種密封材料的表面形貌,結果表明,在材料顆粒磨損方面,仿真與試驗結果基本一致,驗證了通過移動元胞自動機方法開展復合材料密封環(huán)微觀摩擦磨損模擬的有效性。
[Abstract]:Based on the moving cellular automata method of discrete system and considering the influence of various filling materials, the discrete model of composite sealing ring for heavy vehicle transmission system is constructed. Two kinds of composite materials, PTFE and polyether copper, are selected. Visual contrast simulation of micro friction and wear process of sealing friction pair is carried out. The dynamic evolution of the microstructure of the seal surface and the formation and development of the mechanical mixing layer were observed by simulation. Through the statistical calculation of the wear cells, the micro-wear of two composite sealing rings during the simulated time was analyzed. At the same time, the friction and wear tests of sealing ring were carried out. The surface morphology of the two sealing materials was observed by scanning electron microscope. The results show that the simulation results are in good agreement with the experimental results in the aspect of material particle wear. The validity of micro friction and wear simulation of composite sealing rings by moving cellular automata is verified.
【作者單位】： 江蘇大學汽車與交通工程學院;中國北方車輛研究所;
【基金】：國家自然科學基金(51005104) 江蘇省“六大人才高峰”項目(2014-JXQC-005) 江蘇省大學青年骨干教師培養(yǎng)工程和江蘇大學科技項目青年扶持基金(FCJJ005)資助
【分類號】：U463.2;U467

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