基于观察坐标与混合包围盒的装配碰撞检测方法研究
Research on assembly collision detection method based on observation coordinates and hybrid bounding box
投稿时间:2019-03-05  修订日期:2019-10-08
DOI:
中文关键词:  观察坐标系  虚拟装配系统  混合包围盒  碰撞检测
英文关键词:observing coordinate system  virtual assembly system  hybrid bounding box  collision detection
基金项目:
作者单位E-mail
卢江 江苏科技大学 18852898454@163.com 
钱德英 沪东重机有限公司  
周伟中 沪东重机有限公司  
周密 江苏科技大学  
徐仁桐 上海船舶工艺研究所  
陈宁 江苏科技大学 esci_chen@163.com 
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中文摘要:
      观察坐标系和碰撞检测是虚拟装配系统中的重要环节,观察坐标系的建立为用户提供更加真实的沉浸感与合理的观察位置,而精确的碰撞检测对提高装配仿真的精度和效率至关重要。本文利用四元数法设计以观察物体虚拟装配模型间干涉的鹰眼观察坐标系,建立系统中物体模型的对应关系函数,提出了AABB和K-DOPs混合包围盒的碰撞检测方法,对相交的物体进行了干涉检测和干涉剔除。将此方法应用于船用柴油机维护保障虚拟装配系统的开发中,通过仿真分析对比,其方法具有较好的精确性和实时性,能够满足虚拟装配系统开发中对沉浸感和碰撞检测的要求。
英文摘要:
      Observing the coordinate system and collision detection is an important part of the virtual assembly system. The establishment of the observation coordinate system provides users with more realistic immersion and reasonable observation position, and accurate collision detection is essential to improve the accuracy and efficiency of assembly simulation. . In this paper, the quaternion method is used to observe the eagle-eye observation coordinate system of the interference between the virtual assembly models of objects, and the corresponding relationship function of the object model in the system is established. The collision detection method of AABB and K-DOPs hybrid bounding box is proposed. The object is subjected to interference detection and interference rejection. This method is applied to the development of marine diesel engine maintenance support virtual assembly system. Through simulation analysis and comparison, the method has good accuracy and real-time, and can meet the requirements of immersion and collision detection in the development of virtual assembly system.
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