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首页> 外文期刊>Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear >Fretting wear volume calculation on cylindrical surface: Inaccuracy due to misalignment of measured object with respect to 3D profiler
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Fretting wear volume calculation on cylindrical surface: Inaccuracy due to misalignment of measured object with respect to 3D profiler

机译：圆柱表面上的微动磨损量计算：由于测量对象相对于3D轮廓仪未对齐而导致的不准确性

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摘要

Wear volume can be computed from the topography of the wear scar and surrounding region. On single curvature surface whose axis of revolution is aligned to a measuring path of the profiler, the profile over the intact zone fits into a straight line. The line is used for the calculation of the cross sectional area of wear scar which is integrated to obtain the wear volume. If misaligned, however, the line found by the linear regression is an approximation for the intact surface and the resulting wear volume is erroneous to some degree. Parametric studies show the dependence of the error on the misalignment angle, the surface curvature, the wear depth, and the relative widths of the intact and the scar zones. An alternative to avoid the misalignment problem is to use surface fitting which determines the malposition parameters in the equation of the surface. Fretting wear volume of a tube specimen is calculated by the surface fitting and compared with the linear regression results.
机译：磨损量可以根据磨损痕迹和周围区域的地形来计算。在旋转轴与轮廓仪的测量路径对齐的单曲率表面上，完整区域上的轮廓适合于一条直线。该线用于计算磨损痕迹的横截面积，将其积分以获得磨损量。但是，如果未对齐，则通过线性回归找到的线是完整表面的近似值，并且由此导致的磨损量在某种程度上是错误的。参数研究表明，误差与未对准角度，表面曲率，磨损深度以及完整区域和疤痕区域的相对宽度有关。避免未对准问题的一种替代方法是使用曲面拟合，该曲面拟合确定曲面方程式中的位置不正确参数。管件的微动磨损量通过表面拟合计算，并与线性回归结果进行比较。

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