...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Manufacturing Processes >Regulation of Powder Mass Flow Rate in Gravity-Fed Powder Feeder Systems
【24h】

Regulation of Powder Mass Flow Rate in Gravity-Fed Powder Feeder Systems

机译：重力供粉系统中粉末质量流量的调节

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

Precise regulation of powder mass flow in laser-based manufacturing processes is critical to achieving excellent part dimensional and microstructure quality. Control of powder mass flow is challenging because low flow rates, where nonlinear effects are significant, are typically required. Also, gravity-fed powder feeder systems have significant material transport delays, making the control of powder mass flow even more challenging. This paper presents a control strategy for regulating the powder mass flow rate in a gravity-fed powder feeder system. A dynamic model of the powder feeder system, including material transport delay, is constructed, and a modified proportional plus integral (PI) controller is designed. An observer is used to estimate powder mass flow rate using the powder feeder motor encoder signal. The control strategy is implemented in a Smith Predictor Corrector Structure, which has been adjusted such that it can be applied to the modified PI controller, to account for the inherent material transport delay. Experimental studies are conducted that validate the dynamic model and controller strategy.
机译：在基于激光的制造过程中，粉末质量流量的精确调节对于实现出色的零件尺寸和微观结构质量至关重要。粉末质量流量的控制具有挑战性，因为通常需要在非线性影响显着的低流量。同样，重力式送粉系统有很大的物料运输延迟，使粉末质量流量的控制更具挑战性。本文提出了一种控制策略，用于调节重力供粉系统中的粉末质量流量。建立了粉末进料器系统的动态模型，包括材料的运输延迟，并设计了一个改进的比例加积分（PI）控制器。观察者用于通过粉末进料器电机编码器信号估算粉末质量流量。控制策略在Smith Smith预测器校正器结构中实现，该结构已进行了调整，以便可以将其应用于修改后的PI控制器，以解决固有的物料传输延迟。进行了验证动态模型和控制器策略的实验研究。

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