基于鼓形面的车门玻璃及导轨设计

Automotive Door Glass and Guide Rail with Drum Surface

摘要:

提出一种以鼓形面拟合双曲面车门玻璃的方法，利用线元几何构造运动方程并结合KLocalRANSAC 算法从车身点云拟合鼓形面.根据鼓形线原理，由比例函数的方法得到玻璃导轨曲线，同时进行运动偏差分析，最大运动偏差小于0.6 mm，完全达到工程设计要求，说明鼓形面玻璃的拟合方法及升降导轨的设计正确、合理.

关键词:车门玻璃;鼓形面;鼓形线;运动偏差

Abstract:

The drum surface method was proposed to fit the dual curvature glass. The drum surface was obtained from the automotive body cloudy data with the motion equation by using line element geometry and KLocalRANSAC algorithm. Based on the drum line principle, the proportional function method was used to obtain the guide rail curve. At the same time, the motion deviation was analyzed and the max motion deviation was not more than 0.6 mm. The results fully achieve the engineering requirements. It is proved that the drum surface fitting method and the guide rail design are correct and reasonable.

Key words:automotive door glass;drum surface; drum line;motion deviation