中国机械工程2012，Vol.23Issue(12)：1479-1481,3.
圆柱轴类零件径向与轴向热变形异常现象研究
Study on Abnormal Phenomena of Radial and Axial Thermal Deformation of Cylindrical Parts
摘要
Abstract
A phenomenon was found by experimental results that the same size of cylindrical parts had different radial and axial thermal deformations under the same conditions. And the traditional therodynamic theory could not explain this phenomenon. The relationship between volume expansion coefficient and linear expansion coefficient of crystal was built up by using the Lattice vibration theory of solid--state physics. Based on this relationship, a radial thermal deformation of cylindrical model was set up. The model was different with the traditional model. The experimental results show that the value which calculated by the model is closer to the experimental results than that by the tradition- al model, and cylindrical parts have different radial and axial thermal expansion coefficient. Tradition- al model of axial thermal deformation can not be used in micro--field when calculating the radial thermal deformation of cylindrical parts.关键词
线膨胀系数/体积膨胀系数/轴类零件径向热变形/异常现象Key words
linear expansion coefficient/volume expansion coefficient/radial thermal deformation of cylindrical part/abnormal phenomena分类
机械制造引用本文复制引用
罗哉,陆艺,郭斌,范伟军..圆柱轴类零件径向与轴向热变形异常现象研究[J].中国机械工程,2012,23(12):1479-1481,3.基金项目
国家自然科学基金资助项目 （）
