Study on hydraulic servo system which uses magnetic fluid as working fluid.

以磁流体为工作液的液压伺服系统研究

• 批准号: 60550182
• 负责人: KABEI Nobuyuki
• 金额: $ 1.28万
• 依托单位: Tokyo Women's Medical College
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-60550182/
• 关键词: Magnetic fluid; Hydraulic system; Laminar proportional amplifier; Transducer; 電磁石; 作動流体; 信号増幅

We developed a magnetic controlled laminar proportional amplifier (MCLPA) which has two electromagnets installed at the outlet of a supply nozzle. Using a magnetic fluid as the working fluid of a hydraulic system of the MCLPA instead of conventional petroleum, an electrical to mechanical transducer having no moving parts can be realized.Width of the nozzle of the MCLPA was 1 mm and aspect ratio were 0.5 and 1. In this study , we examined the characteristics of the MCLPA. The maximum strength of the magnetic field which was generated by the electromagnet of the MCLPA with a current of 1 A was 0.1 T. Without any supply current, pressure recovery of the MCLPA increased in proportion to the modified Reynolds number. The maximum pressure recovery was 37 % It was confirmed that the shape and dimensions of the MCLPA was adequate for this application. Applying a constant current, i.e., 1 A, to the electromagnet, the pressure difference between two outlet ports of the MCLPA increased in proportion to the modified Reynolds number. The maximum pressure difference was 74.7 KPa at the modified Reynolds number of 850. The output pressure difference increased aproximately in proportion to the second power of the supply current to the electromagnet.

研制了一种磁控层流比例放大器（MCLPA），该放大器在供气喷嘴的出口处安装了两个电磁铁。MCLPA的液压系统的工作流体采用磁性流体代替传统的石油，可以实现没有运动部件的电-机械转换器。在这项研究中，我们研究了MCLPA的特点。由MCLPA的电磁体以1A的电流产生的磁场的最大强度为0.1T。在没有任何供应电流的情况下，MCLPA的压力恢复与修正雷诺数成比例地增加。最大压力恢复率为37%。经证实，MCLPA的形状和尺寸适用于该应用。施加恒定电流，即，1A时，对电磁铁，MCLPA的两个出口端口之间的压力差与修改后的雷诺数成比例地增加。修正雷诺数为850时，最大压差为74.7 KPa。输出压差与电磁铁的供电电流的二次方成正比地增加。

项目成果

N. Kabei, and K. Tsuchiya: "Magnetic controlled laminar proportional amplifier using magnetic fluid as working fluid." Journal of the Japan Society of Mechanical Engineers. 860-12. 25-27 (1986)

N. Kabei 和 K. Tsuchiya：“使用磁性流体作为工作流体的磁控层流比例放大器。”

壁井信之,土屋喜一: 第1回流体制御シンポジユウム計測自動制御学会講演論文集. 1. 67-72 (1986)

Nobuyuki Kabei、Kiichi Tsuchiya：第一届流体控制研讨会论文集，仪器与控制工程师学会，1. 67-72 (1986)

壁井信之,土屋喜一: 日本機械学会第943回講演会 磁性流体工学講演論文集. 860・12. 25-27 (1986)

Nobuyuki Kabei、Kiichi Tsuchiya：日本机械工程师学会第 943 届磁流体工程学会论文集 860・12.25-27 (1986)。

N.Kabei;Y.Sakurai;K.Tsuchiya: International Symposium on Fluid Control and Measurement Proceeding of Fluid Control and Measurement. 1. 373-378 (1985)

N.Kabei;Y.Sakurai;K.Tsuchiya：流体控制和测量国际研讨会论文集。

N.Kabei;Y.Sakurai;K.Tsuchiya: The Journal of Fluid Control. 16. 65-83 (1985)

N.Kabei；Y.Sakurai；K.Tsuchiya：流体控制杂志。