基于传热反算建立磨削三维热模型的新方法

中国机械工程 ›› 2013, Vol. 24 ›› Issue (18): 2480-2484.

基于传热反算建立磨削三维热模型的新方法

张魁榜1;韩江1;张丽慧2;夏链1

1.合肥工业大学，合肥，230009
2.重庆大学，重庆，400030

出版日期:2013-09-25 发布日期:2013-09-30
基金资助:
国家重大科技专项（2012ZX04001021）
National Science and Technology Major Project ( No. 2012ZX04001021)

A New Method to Establish 3D Thermal Model of Grinding Process Based on Heat Transfer Inverse

Zhang Kuibang1;Han Jiang1;Zhang Lihui2;Xia Lian1

1.Hefei University of Technology,Hefei,230009
2.Chongqing University,Chongqing,400030

Online:2013-09-25 Published:2013-09-30
Supported by:
National Science and Technology Major Project ( No. 2012ZX04001021)

摘要/Abstract

摘要：

首先使用热电偶测量平面磨削时CBN砂轮与工件接触区下方处不同位置点温度；然后基于传热反问题理论，优化实际测量温度值与理论仿真温度值间的目标函数，反算出进入工件的热量，从而得出进入工件的能量比例；最后建立磨削三维热模型，计算出不同磨削时刻工件表面温度。实验结果表明，CBN砂轮进入工件的能量比例与实际值相吻合，基于传热反算方法建立磨削三维热模型具有可行性。

关键词: 磨削, 三维热模型, 传热反算, 能量比例, CBN砂轮

Abstract:

First, the temperature of workpiece was measured by the embedded thermocouples at different locations under the contact area. Then based on the theory of heat transfer inverse, the heat flux toward the workpiece can be back calculated by the optimized objective function that compared the difference between the thermal model and experimental results, thus, the partition of energy entered into the workpiece can be obtained. Finally a three-dimensional model can be developed and the temperature of workpiece surface can be calculated during grinding process. The experimental results show that the energy partition into the workpiece with CBN grinding wheel
matches with predicted value and feasibility using heat transfer inverse method to develop the 3D thermal model for grinding is proven.

Key words: grinding, 3D thermal model, heat transfer inverse, energy partition, CBN grinding wheel

中图分类号:

TG580

张魁榜1;韩江1;张丽慧2;夏链1. 基于传热反算建立磨削三维热模型的新方法[J]. 中国机械工程, 2013, 24(18): 2480-2484.

Zhang Kuibang1;Han Jiang1;Zhang Lihui2;Xia Lian1. A New Method to Establish 3D Thermal Model of Grinding Process Based on Heat Transfer Inverse[J]. China Mechanical Engineering, 2013, 24(18): 2480-2484.

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