摘要
分析了汽车车身在光顺过程中曲线(曲面)的Bézier表示方法和B样条表示方法,并对2种方法表示的曲线(曲面)品质进行了对比分析。在此基础上,提出选用Bézier表示方法光顺汽车车身A级曲面,同时根据高次曲线(曲面)的振荡性和光顺要求,将曲线(曲面)的次数限制在2～7次。试验表明,采用Bézier方法得到的某汽车车身曲面符合造型要求,其曲面之间的斑马线光滑过渡,达到了A级曲面的要求。
Curved surface Bezier representing method and B spline representing method during auto-body smoothing are analyzed, and quality of the curved surface represented with the two methods are compared and analyzed. On this basis, it is proposed in the paper to select B6zier representing method to smoothen Class A curved surface of auto- body, meanwhile, the time of curved surface is limited to two to seven times according to the requirement of oscillation and smooth of high-degree curved surface. The test indicates that the auto-body curved surface processed with Bezier method complies with styling requirement, the zebra line smooth transition satisfies the requirement of Class A curved surface.
出处
《汽车技术》
北大核心
2010年第9期58-61,共4页
Automobile Technology
关键词
车身
A级曲面
表示方法
Auto-body, Class A surfaces, Representing method
