首页> 外文会议>International Conference on Advances in Construction Machinery and Vehicle Engineering >Digital Inspection for External Projections of Passenger Cars Based on Free Rolling Contact Constraints
【24h】

Digital Inspection for External Projections of Passenger Cars Based on Free Rolling Contact Constraints

机译:基于自由滚动接触约束的乘用车外部投影的数字检查

获取原文

摘要

To protect human from sharp edges of passenger cars, the fillet radius of external projections on car surface should conform the national standard. To inspect underlying problems of the external projections on the design stage, a sphere should roll freely on the car surface in the design platform, which is difficult to achieve in the existing CAD software. Hence, a novel approach to establish the free rolling contact constraints is presented in this paper. The car surface is modelled by triangular facets, and the rolling of the sphere on car surface is converted to the motion on the facets. The rolling contact constraints for both single facet and double facets are established, and are switched through understanding the manipulation purpose of the designer. The tool of digital inspection for external projections is developed based on NX secondary development, which notably improves the inspection efficiency on the car design stage.
机译:为了保护人免受乘用车的锋利边缘,汽车表面上的外部凸起的圆角半径应符合国家标准。为了检查设计阶段的外部投影的潜在问题,球体应该在设计平台中自由滚动,这在现有的CAD软件中难以实现。因此,本文提出了一种建立自由滚动接触约束的新方法。汽车表面由三角形平面建模,并且在汽车表面上的球体滚动被转换为小平面上的运动。建立单面和双面的滚动接触约束,并通过了解设计者的操纵目的而切换。外部投影的数字检查工具是基于NX二次开发开发的,这显着提高了汽车设计阶段的检查效率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号