• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Symposium on Digital Manufacture; 20061015-17; Wuhan(CN) >A Generalized Acceleration and Deceleration Approach for Continuous Small Line Blocks with Look-ahead
【24h】

A Generalized Acceleration and Deceleration Approach for Continuous Small Line Blocks with Look-ahead

机译：先行连续小线段的广义加减速方法

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Generally complex 3D contours are divided into a lot of continuous small line blocks by CAD/CAM software. When these small line blocks are used in conventional way, machine tool has to stop at the end of one move before continuing on to the next to meet accuracy requirement, which results in inefficiency. Look-ahead is an intelligent function that aims at adjusting the feed rate automatically to achieve maximum productivity while maintaining accuracy. By now most researchers just utilize the simplest linear acceleration (ACC) and deceleration (DEC) to deal with look-ahead intelligence. A generalized ACC/DEC approach and corresponding optimal look-ahead algorithm based on dynamic back tracking along a doubly linked list are proposed. An improved rounding strategy for reducing interpolation errors is also presented. By using the proposed techniques , arbitrary velocity profiles that offer look-ahead feature and have the desired ACC/DEC characteristics for movement of a lot of continuous line blocks can be generated efficiently. Both simulations and experiments showed the productivity was dramatically increased without sacrifice of accuracy.
机译：通常，复杂的3D轮廓通过CAD / CAM软件分为许多连续的小线段。当按常规方式使用这些小线块时，机床必须在一次移动结束时停止，然后再继续进行下一个以满足精度要求，这会导致效率低下。前瞻是一项智能功能，旨在自动调整进给速度，以在保持精度的同时实现最大的生产率。到目前为止，大多数研究人员只是利用最简单的线性加速（ACC）和减速（DEC）来处理超前智能。提出了一种基于双向链表动态回溯的广义ACC / DEC方法和相应的最优预见算法。还提出了一种用于减少插值误差的改进的舍入策略。通过使用所提出的技术，可以高效地生成具有提前特征并具有用于许多连续线块运动的所需ACC / DEC特性的任意速度曲线。仿真和实验均表明，生产率显着提高，而没有牺牲准确性。

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