合理ANCF圆形元件的分类方法
Manyu Shi1, Manlan Liu1,2, Yaxiong Liu1
1School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
Scientific reports
|July 2, 2025
概括
本研究介绍了一种新的方法来细分理性NURBS (非统一的理性B-Spline) 曲线,以确保几何精度. 该方法在密集的参数区域中提炼元素,以提高计算效率和准确性.
科学领域:
- 计算几何学计算几何学
- 计算机辅助设计是指计算机辅助设计.
- 数字分析 数字分析
背景情况:
- 非统一的理性B-Spline (NURBS) 曲线是几何建模的基础.
- 现有的节点插入算法可能会面临各种元素定义和参数分布的挑战.
- 不均参数化的元素的细分的扭曲需要改进的方法.
研究的目的:
- 开发一个精确的方法来计算节点坐标和重量在细分的元素,而不会改变几何性质.
- 为了解决和控制在非均参数化的元素的细分过程中的扭曲.
- 建立基于物理空间弧度长度的合理NURBS (RANCF) 元素的细分标准.
主要方法:
- 使用NURBS曲线的节点插入算法.
- 引入元素参数点的分布密度函数.
- 建立对参数空间分区节点的计算方法,对应于物理空间弧度长度.
主要成果:
- 拟议的方法可以在物理空间中精确地细分不同参数的弧线元素.
- 数字计算结果指导了RANCF元素的细分标准的确定.
- 在具有较密集参数点分布的地区进行本地精细化被发现是有效的.
结论:
- 开发的方法确保RANCF元素的几何性质和参数分布在细分过程中保持.
- 该方法有效地控制了对非均参数化的元素的细分过程中的扭曲.
- 基于参数点密度的局部精制提高了计算精度和效率.
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