机床热误差建模研究综述

发布时间：2018-03-09 05:36

本文选题：机床　切入点：热误差　出处：《机械工程学报》2015年09期 　论文类型：期刊论文

【摘要】：机床热误差的产生不可避免,热误差在机床的总误差源中又占有较大比重。如何合理地对机床热误差进行建模,并以此为基础实现热误差的避免与补偿十分关键。在过去三十年里,众多国内外学者针对热误差的建模方法进行了探究,基于建模方法的不同可分为两类:经验热误差建模方法与理论热误差建模方法。经验热误差建模方法主要应用于机床热误差的补偿,基于对统计学模型的参数辨识实现热误差的预测。理论热误差建模方法主要用于机床热误差的避免,基于传热关系及力与位移的约束建立方程,并通过微分方程的数值求解得到热变形。以这两种机床热误差的建模方法为脉络进行展开,分别探讨了两类建模方法国内外的研究现状,并分析了各模型的优缺点,并对未来的研究趋势进行了展望。
[Abstract]:The thermal error of machine tools is inevitable, and the thermal error of a large proportion of the total machine error sources. How to reasonably carry out the modeling of thermal errors of machine tool, and as a basis to avoid thermal error and compensation is very important. In the past thirty years, many domestic and foreign scholars on the modeling method of thermal error was explored and the different modeling methods can be divided into two categories: Based on error experience thermal error modeling method and theory of thermal modeling method. The experience of thermal error modeling method is mainly used in the thermal error compensation, predictive parameter identification of statistical model of thermal error based on theory. Thermal error modeling method is mainly used to avoid the thermal error. The establishment of equations of heat transfer and stress and displacement constraints based on thermal deformation and obtained by numerically solving the differential equations. With the modeling method of these two kinds of thermal error for vein The research status of the two kinds of modeling methods at home and abroad is discussed, and the advantages and disadvantages of each model are analyzed, and the future research trend is prospected.

【作者单位】：清华大学机械工程系;
【基金】：国家科技重大专项资助项目(2013ZX04013-011)
【分类号】：TG659

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