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吉林化工学院学报, 2021, 38(5): 55-61     https://doi.org/10.16039/j.cnki.cn22-1249.2021.05.012
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球墨铸铁复合仿生耦合单元体结构参数变化对摩擦应力的影响模拟研究
赵鹏霖,赵世喆,李德虎,陈贵鑫
长春工程学院 机电工程学院,吉林 长春 130012
Simulation Study on the Influence of Structural Parameters of Nodular Cast Iron Composite Bionic Coupling Unit on Friction Stress
ZHAO Penglin,ZHAO Shizhe,LI Dehu,CHEN Guixin
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摘要 

应用仿生耦合原理,提取典型单元体,设计仿生单元体结构,从而获得耐磨性能更好的球墨铸铁耐磨表面,通过模拟发现仿生耦合表面出现了单元体处应力集中,基体应力降低的现象。通过复合典型仿生结构,并改变结构参数可改变摩擦面的应力大小及分布状况。利用软件进行模拟研究,并得出如下结论:结果表明对于直线+渐开线形复合仿生单元体来说,当只改变直线间距,单元体上摩擦应力增加,基体表面摩擦应力降低,材料的耐磨性能随直线间距的增大而增大。当直线间距达到7mm时,基体表面的摩擦应力最小,材料的耐磨性能最好;当只改变渐开线基圆半径,材料的耐磨性能随渐开线基圆半径的增大呈先升高后下降的趋势。当渐开线基圆半径达到0.5mm时,基体表面的摩擦应力最小,材料的耐磨性能最好。

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赵鹏霖
赵世喆
李德虎
陈贵鑫
关键词:  球墨铸铁  仿生  单元体  模拟  复合     
Abstract: 

Using the bionic coupling principle, the typical unit body is extracted, and the wear-resistant surface of nodular cast iron with better wear resistance can be obtained by laser melting technology. Through simulation, it is found that the stress concentration at the unit body and the stress reduction of the matrix appear on the bionic coupling surface. By compounding typical bionic structures and changing structural parameters, the stress magnitude and distribution of friction surface can be changed. The simulation research was carried out by using the software, and the following conclusions were drawn: The results show that for the straight line+involute composite bionic unit, when only the distance between straight lines is changed, the friction stress on the unit increases, while the friction stress on the substrate surface decreases, and the wear resistance of the material increases with the increase of the distance between straight lines. When the linear distance reaches 7mm, the friction stress on the substrate surface is the smallest and the wear resistance of the material is the best; When only the involute base circle radius is changed, the wear resistance of the material increases first and then decreases with the increase of involute base circle radius. When the radius of involute base circle reaches 0.5mm, the friction stress on the substrate surface is the smallest, and the wear resistance of the material is the best.

Key words:  nodular cast iron    bionics    unit body    simulation    compound
               出版日期:  2021-05-25      发布日期:  2021-05-25      整期出版日期:  2021-05-25
TG143.5  
引用本文:    
赵鹏霖, 赵世喆, 李德虎, 陈贵鑫. 球墨铸铁复合仿生耦合单元体结构参数变化对摩擦应力的影响模拟研究 [J]. 吉林化工学院学报, 2021, 38(5): 55-61.
ZHAO Penglin, ZHAO Shizhe, LI Dehu, CHEN Guixin. Simulation Study on the Influence of Structural Parameters of Nodular Cast Iron Composite Bionic Coupling Unit on Friction Stress . Journal of Jilin Institute of Chemical Technology, 2021, 38(5): 55-61.
链接本文:  
https://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2021.05.012  或          https://xuebao.jlict.edu.cn/CN/Y2021/V38/I5/55
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