Intelligent Vibration Control System by a Variable-damping Dynamic Absorber Using ER Fluid

使用 ER 流体的可变阻尼动态吸振器的智能振动控制系统

• 批准号: 10650235
• 负责人: MORISHITA Shin
• 金额: $ 2.24万
• 依托单位: Yokohama National University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650235/
• 关键词: ER Fluid; Dynamic Absorber; Semi-active Vibration Control; Neural Network; Self-organization; Intelligent Control; 振動制御; 減衰; 知的システム

This project is on a variable-damping dynamic absorber applying Electrorheological (ER) fluid to the damping element of a conventional-type dynamic absorber. A prototype of variable-damping dynamic absorber was constructed and its performance was verified with a three-story structural model. The special ability of the present dynamic absorber is to reduce the vibration amplitude at several frequencies by a single dynamic absorber. ER fluid is functional fluid whose yield shear stress can be changed by the applied electric field strength. Because of its peculiar property, ER fluid has been applied to various mechanical components such as shock absorbers and engine mounts for vehicles, clutches, valves, etc. One of the practical ways in applying ER fluid to mechanical components may be to expand the performance of conventional mechanical components by combining ER fluid effectively with them. In this sense, this paper shows a successful application of ER fluid to a conventional-type dynamic absorber. An adaptive neural network control system composed of a forward model network for system identification and a controller network was introduced to control the variable-damping element of the dynamic absorber. The numerical simulations show good agreements with the experimental results.

本课题研究的是一种可变阻尼动力减振器，将电流变液应用于传统动力减振器的阻尼元件。建立了变阻尼动力减振器的原型，并用三层结构模型验证了其性能。现有动力减振器的特殊能力是用一个动力减振器在多个频率上减小振动幅值。电流变流体是一种功能流体，其屈服剪切应力可随外加电场强度而改变。由于其特殊的性能，电流变流体已被应用于各种机械部件，如汽车减震器和发动机支架、离合器、阀门等。将电流变流体应用于机械部件的实际方法之一可能是通过将电流变流体与常规机械部件有效结合来扩大其性能。从这个意义上说，本文显示了电流变流体在常规型动力吸收器上的成功应用。提出了一种由用于系统辨识的前向模型网络和控制器网络组成的自适应神经网络控制系统来控制动态减振器的变阻尼单元。数值模拟结果与实验结果吻合较好。

项目成果

S. Hidaka, S. Morishita et al: "Adaptive Vibration Control by a Variable-damping Dynamic Absorber using ER Fluid"Trans. ASME J. Vibration & Acoustics. 121. 373-378 (1999)

S. Hidaka、S. Morishita 等人：“使用 ER 流体通过可变阻尼动态吸振器进行自适应振动控制”Trans。

Shin Morishita, Toshihiko Shiraishi: "Cluster Formation under an Electric Field"Proc. of D & D Conference, JSME. 98-8. 299-302 (1998)

Shin Morishita、Toshihiko Shiraishi：“电场下的团簇形成”Proc。

森下信,白石俊彦: "電場下における分散粒子のクラスタ形成"日本機械学会講演論文集. 98-8. 299-302 (1998)

Shin Morishita，Toshihiko Shiraishi：“电场下分散粒子的簇形成”日本机械工程师学会会议记录 98-8 299-302 (1998)。

S.Hidaka,Y.K.Ahn,S.Morishita: "Adaptive Vibration Control by a Variable-damping Dynamic Absorber using ER Fluid"Transaction of ASME, J. Vibration & Acoustics. 121,July. 373-378 (1999)

S.Hidaka、Y.K.Ahn、S.Morishita：“使用 ER 流体的可变阻尼动态吸振器进行自适应振动控制”ASME 交易，J. Vibration

Yoshiki Matsumura, Shin Morishita, Young Kong Ahn: "Adaptive Vibration Control of a Flexible Structure by Magnetostrictive Actuators"Proc. of D & D Conference, JSME. 99-7. 493-495 (1999)

Yoshiki Matsumura、Shin Morishita、Young Kong Ahn：“磁致伸缩执行器对柔性结构的自适应振动控制”Proc。