黄云,刘帅,黄涛,肖贵坚,代文韬,贺毅,王文玺.钛合金材料砂带磨削表面残余应力形成模型及其实验研究[J].表面技术,2020,49(4):30-37.
HUANG Yun,LIU Shuai,HUANG Tao,XIAO Gui-jian,DAI Wen-tao,HE Yi,WANG Wen-xi.Model of Residual Stress Formation on Belt Grinding Surface of Titanium Alloy and Experimental Research[J].Surface Technology,2020,49(4):30-37
钛合金材料砂带磨削表面残余应力形成模型及其实验研究
Model of Residual Stress Formation on Belt Grinding Surface of Titanium Alloy and Experimental Research
投稿时间:2019-08-26  修订日期:2020-04-20
DOI:10.16490/j.cnki.issn.1001-3660.2020.04.004
中文关键词:  钛合金  砂带磨削  表面残余应力  模型  系统动力学  误差分析
英文关键词:titanium alloy  belt grinding  residual stress  model  system dynamics  error analysis
基金项目:国家自然科学基金项目(51705047)
作者单位
黄云 重庆大学,重庆 400000 
刘帅 重庆大学,重庆 400000 
黄涛 重庆大学,重庆 400000 
肖贵坚 重庆大学,重庆 400000 
代文韬 重庆大学,重庆 400000 
贺毅 重庆大学,重庆 400000 
王文玺 重庆大学,重庆 400000 
AuthorInstitution
HUANG Yun Chongqing University, Chongqing 400000, China 
LIU Shuai Chongqing University, Chongqing 400000, China 
HUANG Tao Chongqing University, Chongqing 400000, China 
XIAO Gui-jian Chongqing University, Chongqing 400000, China 
DAI Wen-tao Chongqing University, Chongqing 400000, China 
HE Yi Chongqing University, Chongqing 400000, China 
WANG Wen-xi Chongqing University, Chongqing 400000, China 
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中文摘要:
      目的 建立钛合金材料砂带磨削参数到磨削后表面残余应力之间的数学模型并验证其有效性。方法 综合应用弹性力学和碰撞力学建立材料表面微观结构力学模型,通过对外力作用下的力学模型的分析计算得到数学模型,再利用Simulink对其进行仿真分析,得到了一定磨削参数下钛合金砂带磨削表面残余应力与时间的关系图,最后进行了钛合金砂带磨削实验,验证了该数学模型的有效性并进行误差分析。结果 所构建的数学模型仿真值与实测值变化趋势相似,有着较好的仿真效果。但是,在引入热量系数t之前,最大误差为62.98%,平均误差为16.43%,结果不够理想;而在引入热量系数t之后,最大误差为9.87%,平均误差为5.75%,精度上升明显,能够有效地预测表面残余应力的取值。结论 综合应用弹性力学和碰撞力学来构建出钛合金材料砂带磨削表面残余应力形成模型,能够有效地表征其在一定加工参数下的表面残余应力。
英文摘要:
      To establish the mathematical model from belt grinding parameters to residual stress on grinding surface of titanium alloy material and verify its validity. In this paper, the microstructure model of material surface was established by using elastic mechanics and collision mechanics. After the mathematical model was obtained through the analysis and calculation of the mechanical model, use Simulink to realize the simulation analysis of the mechanical model, obtained the relation diagram of residual stress and time on belt grinding surface of titanium alloy with certain grinding parameters. Finally, verify the validity of the mathematical model by the experiment of titanium alloy belt grinding and analyze the possible error sources. As a result, the experiment show that the simulation value of the mathematical model is similar to the measured value and has a good simulation effect. However, before the introduction of t, the maximum error of the simulation value and the measured value is 62.98%, the average error is 16.43%, the result is not ideal; And after the introduction of heat coefficient tau, the maximum error of the simulation value and the measured values is 9.87%, average error is 5.75%, precision rise significantly, can effectively predict the surface residual stress values. Based on elastic mechanics and collision mechanics, the model of residual stress formation on grinding surface of titanium alloy can be used to characterize the residual stress under certain machining parameters.
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