Simulation and Control Design of Automatic Pouring System

自动浇注系统仿真与控制设计

• 批准号: 06555070
• 负责人: TERASHIMA Kazuhiko
• 金额: $ 4.48万
• 依托单位: Toyohashi University of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06555070/
• 关键词: Automatic Pouring; Simulation; Pouring Control; Liquid vibration; Container Jransber Control; Preshaping Control; H^* Control; Sola-Mac method

1. Automatic pouring process is constructed of a pouring process injecting molten metal into a mold and also transfering a poring machine from a certain place to an another place. In the present researches, the above two problems have been studied among four reserchers working in universities institution (Terashima, Toyohashi University of Technology ; Maeda, Natoya University), casting machine builder (Yoshida, Fujiwa Electric Company) and Casting Production Maker (Osada, Osada Casting Company). The results obtained in this researches are the followings.2. With respect to pouring proces, modelling, simulation and control of an automatic pouring system of tilting-type considering the fluid behavior. A mathematical model is built usitn two dimensional continuity and Navier-stokes equations with the term of tank rotation. Model validity is confirmed by experiments. The effect of operated variables like the tank shape, the position of rotary shaft and the angular velocity of tank rotation is analyzed on the fluid behavior during pouring. Flow rate control and vibration control using preshaping theory guaranteeing the posotion control of tank angle are als given.3. With respect to transferring process, we proposed the liquid container transfer system with the robustness for the change of liquid level. H-infinity control theory has been applied to this system to obtain the robustness for the change of liquid level. Furthermore, a reference trajectory is reasonably determined by an optimization method of Fletcher Reefves combined with a clipping-off technique to suppress the sloshing (liquid vibration). Through simulations and experiments, the effectiveness of the present control system has been demonstrated.

1.自动浇注过程是将熔融金属注入模具并将浇注机从一个地方转移到另一个地方的浇注过程。在本研究中，上述两个问题已经研究了四个研究人员在大学机构（寺岛，丰桥工业大学;前田，名屋大学），铸造机制造商（吉田，藤和电气公司）和铸造生产制造商（Osada，Osada铸造公司）。本研究取得的主要结果如下.在浇注过程方面，考虑流体行为，对倾斜式自动浇注系统进行了建模、仿真和控制。利用二维连续性和Navier-Stokes方程建立了考虑贮箱旋转的数学模型。通过实验验证了模型的有效性。分析了罐体形状、转轴位置、罐体旋转角速度等操作变量对浇注过程中流体行为的影响。采用预成形理论进行流量控制和振动控制，保证了液舱角度的位置控制.在输送过程中，提出了对液位变化具有鲁棒性的储液罐输送系统。将H ∞控制理论应用于该系统，以获得对液位变化的鲁棒性。采用弗莱彻Reefves优化方法结合截断技术合理确定参考轨迹，抑制晃动（液体振动）。通过仿真和实验，证明了该控制系统的有效性。

项目成果

K.Yano: "Lignid Lortainer Jransfer Corsidering the Suppression of Sloshing for the Change of Liqaid Level" Bth Triennical IFAC World Cogres,San Fransisco (USA),June30〜July5. (予定). (1996)

K. Yano：“Lignid Lortainer Jransfer Corsidering the Swoshing for the Change of Liqaid Level”Bth Triennical IFAC World Cogres，旧金山（美国），6 月 30 日至 7 月 5 日。（计划）。

K.Yano, t.yoshida, M.Hamaguchi and K.Terashima: "Liquid Container Transfer Considering the Suppression of Sloshing for the Change of Liquid Level." 13th Triennial IFAC (International Federation of Automatic Control) World Congress, San Francisco (USA), Ju

K.Yano、t.yoshida、M.Hamaguchi 和 K.Terashima：“考虑液位变化晃动抑制的液体容器转移”。

K.Terashima, M.Hamaguchi, A.Kaneshige and G.Schmidt: "Motion Control of an Automotive Cart Based Cylindrical Container Considering Suppression of Liquid Oscillation on a Curve Track Transfer." Proc. of IFAC (International Federation of Automatic Control)

K.Terashima、M.Hamaguchi、A.Kaneshige 和 G.Schmidt：“考虑抑制曲线轨道传输中的液体振荡的基于汽车推车的圆柱形容器的运动控制”。

寺嶋一彦: "3次元液体タンクの最適搬送制御と液位,粘性変化に対する制振ロバスト性" システム制御情報学会論文誌. 9. 162-171 (1996)

Kazuhiko Terashima：“三维液体罐的最佳输送控制以及针对液位和粘度变化的阻尼鲁棒性”系统、控制和信息工程师学会学报 9. 162-171 (1996)。

寺嶋一彦: "3次元液体タンクの最適搬送制御と液位,粘性変化に対する制振ロバスト性" システム制御情報学会論文集. 9. 162-171 (1996)

Kazuhiko Terashima：“三维液体罐的最佳输送控制以及针对液位和粘度变化的阻尼鲁棒性”系统、控制和信息工程师学会学报 9. 162-171 (1996)。