Contact Pattern Analysis: Simulation of a Laser-Assisted Thermographic Approach
Contact Pattern Analysis: Simulation of a Laser-Assisted Thermographic Approach
复制标题
接触模式分析：激光辅助热成像方法的模拟
DOI：
10.1007/s10765-016-2090-9
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发表时间：
2016
影响因子：
2.2
通讯作者：
Lipinski
中科院分区：
文献类型：
--
作者：
Prekel;StroebelG;Lipinski
接触斑图是齿轮啮合过程中轮齿接触的面积，是齿轮的一个重要质量特征。如果接触图案的尺寸和位置是错误的，则齿轮啮合特性会受到显著影响（例如，寿命、噪声）。尽管存在一些缺点，但所谓的“粘贴法”被确立为分析接触图案的方法。在这里，一种新的测量方法是使用有限元法（FEM）检查。它基于用强大的激光加热一个齿面，随后将热量部分传递到第二齿轮的啮合齿，并最终在不久之后将该齿面上的热分布捕获为红外图像。热图像应该对应于单个牙齿组合的接触图案。数值分析表明，在中型和大型齿轮，可实现的温度升高将足够高，可以用现代红外摄像机检测到。
The contact pattern, defined as the area where gear teeth come into contact during their meshing, is a crucial quality feature of gears. If the size and location of the contact pattern are wrong, the gear meshing properties can be significantly affected (e.g., lifetime, noise). Despite several disadvantages, the so-called “paste method” is established as a method to analyse contact patterns. Here, a new measuring approach is examined using the Finite Elements Method (FEM). It is based on the heating-up of one tooth flank with a powerful laser, a subsequent partial transfer of the heat to a meshing tooth of the second gear wheel and finally capturing the heat distribution on that flank as an infrared image shortly afterwards. The thermal image should correspond to the contact pattern of that individual combination of teeth. A numerical analysis shows that at medium- and large-sized gears the achievable temperature increase will be high enough to be detected with modern infrared cameras.