首页> 外文学位 >Automation of continuous composite two-dimensional braiding process.
【24h】

Automation of continuous composite two-dimensional braiding process.

机译:连续复合二维编织过程的自动化。

获取原文
获取原文并翻译 | 示例

摘要

This work presents the design of a computer controlled pilot production plant capable of manufacturing hybrid braided/pultruded rod on a continuous basis. The current product design utilizes a high modulus carbon fiber core with a braided over-wrap composed of various materials. Production is accomplished in three phases: core fiber sorting and impregnation, 2D braiding, and resin curing. On-line impregnation of the core strands is accomplished using a pressure-fed impregnation ring. Deposition of the 2D braid is performed by a Maypole braider. Curing of the resin is accomplished using a novel two phase method. An induction heater first increases the temperature of steel wires embedded in the rod core. Next three tunnel ovens provide heat flux to the exterior of the rod. A caterpillar-type puller is used to advance the rod through the process. Prior to this work production was accomplished by manually adjusting machinery operating parameters through controls distributed throughout the production facility. This led to inconsistent quality product. The modifications to production equipment and the development of an automation system which allow one to improve. The modifications to production equipment and the development of an automation system which allow to improve product quality are the main topics of this work.;The automation system is based on a PC equipped with several data acquisition cards. A global controller calculates machine set points based on product specifications and measured production rate. Cascade controllers are tasked to regulate machine operations about these set points. The rotational speed of the braider head and puller are monitored using incremental encoders and are under set point element and integral control. The resin flow rate is estimated from weight measurement of the resin reservoir. To regulate the resin dispensing process a calibration curve is used as a set point elements while disturbances are rejected using integral control. The curing oven temperatures are monitored using thermocouples. The oven temperatures are regulated using gain scheduled PI controllers.;The modification to the production equipment and the development of the automation system allowed for significant improvements in the product quality.
机译:这项工作提出了一种计算机控制的中试工厂的设计,该工厂能够连续生产混合编织/拉挤棒材。当前的产品设计使用高模量碳纤维芯,并由由各种材料组成的编织外包装制成。生产分三个阶段完成:芯纤维分选和浸渍,2D编织和树脂固化。芯线的在线浸渍是使用压力送入的浸渍环完成的。 2D编织层的沉积由Maypole编织层进行。使用新颖的两相方法完成树脂的固化。感应加热器首先提高嵌入棒芯中的钢丝的温度。接下来,三个隧道炉将热通量提供给杆的外部。履带式拉马用于使杆前进。在进行此项工作之前,可通过分布在整个生产设施中的控件手动调节机械运行参数来完成生产。这导致产品质量不一致。生产设备的修改和自动化系统的发展使人们得以改进。这项工作的主要主题是对生产设备的修改和自动化系统的开发,以提高产品质量。自动化系统基于一台装有多个数据采集卡的PC。全局控制器根据产品规格和测得的生产率来计算机器设定点。级联控制器的任务是根据这些设定值调节机器操作。编织头和牵拉器的旋转速度通过增量编码器进行监控,并处于设定值元素和积分控制之下。树脂流速是根据树脂容器的重量测量估算的。为了调节树脂分配过程,使用校准曲线作为设定点元素,同时使用积分控制排除干扰。使用热电偶监控固化炉的温度。烤箱温度使用增益预定PI控制器进行调节。对生产设备的修改和自动化系统的开发可显着提高产品质量。

著录项

  • 作者

    Poisson, Etienne.;

  • 作者单位

    University of Ottawa (Canada).;

  • 授予单位 University of Ottawa (Canada).;
  • 学科 Engineering Mechanical.
  • 学位 M.A.Sc.
  • 年度 2009
  • 页码 230 p.
  • 总页数 230
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 机械、仪表工业;
  • 关键词

  • 入库时间 2022-08-17 11:37:41

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