Active Sound Insulation Using Piezoelectric Composite Film

使用压电复合薄膜的主动隔音

• 批准号: 06452188
• 负责人: TANI Junji
• 金额: $ 3.84万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General 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/en/grant/KAKENHI-PROJECT-06452188/
• 关键词: Vibration Control; Sound Insulation; Piezoelectric Film; Composite Material; Self-Sensing

In order to make quiet environment the active noise control has been studied by means of the superposition of two sound with opposite phase. Furthermore the active vibration control has been studied to deaden noise generated from structures. However it is difficult to actively insulate sound due to spill-over.In this study, a self-sensing actuator with perfect collocation was developed for the active vibration control and active sound insulation. As the self-sensing actuator, the piezoelectric film (PVDF) was used. A method using the phase discriminator was proposed to separate the sensor signal from the mixed signal of sensor and actuator.To deaden the sound generated from structures and insulate the sound, the active vibration control of the thin plate and cylindrical shell was studied by means of the self-sensing actuator in conjunction with H* control theory, mu synthesis and sliding mode control theory. The effectiveness of the present method is verified by simulations and experiment.

为了营造安静的环境，研究了利用两个相位相反的声音叠加的方法进行有源噪声控制。此外，还研究了结构振动主动控制的降噪方法。然而，由于溢漏的存在，使得主动隔声变得困难，本研究开发了一种具有完美配置的自感知作动器，用于主动振动控制和主动隔声。作为自感知致动器，使用压电膜（PVDF）。提出了一种利用相位差法将传感器信号从传感器和作动器的混合信号中分离出来的方法，并结合H* 控制理论、μ综合法和滑模控制理论，研究了基于自感知作动器的薄板和圆柱壳振动主动控制，以达到消声和隔声的目的。仿真和实验验证了该方法的有效性。

项目成果

M. Sasaki: "Stability Analysis of Piezopolymer Flexible Micro-Actuator with a Linear Feedback Control" Proc. 2nd Int. Symp. on Motion and Vibration Control. 1. 361-366 (1994)

M. Sasaki：“具有线性反馈控制的压电聚合物柔性微执行器的稳定性分析”Proc。

J.Qiu and J.Tani: "Vibration Control of a Cylindrical Shell Using Distributed Piezoelectric Sensor and Actuator" J.Intelligent Material Systems and Structures. Vol. 6. 474-481 (1995)

J.Qiu 和 J.Tani：“使用分布式压电传感器和执行器对圆柱壳进行振动控制”J.智能材料系统和结构。

G.Cheng, J.Tani and J.Qiu: "A Study on Self-Sensing Actuator" Technical Digest of the 12th Sensor Symposium. 67-70 (1994)

G.Cheng、J.Tani、J.Qiu：“自感知执行器的研究”第十二届传感器研讨会技术文摘。

J. Qiu and J. Tani: "Vibration Control of a Cylindracal Shell Used in MRI Equipment" J. Smart Materials and Structures. 4. 75-81 (1995)

J. Qiu 和 J. Tani：“MRI 设备中使用的圆柱形壳体的振动控制”J. 智能材料和结构。

Y.J.Zhu,M.Sasaki,F.Fujisawa: "Piezopolymer Flexible Micro-Actuator with Multi-Degrees of Freedom" Proc.5nd Int.Conf.on Adaptive Structures. 607-616 (1994)

Y.J.Zhu，M.Sasaki，F.Fujisawa：“具有多自由度的压电聚合物柔性微执行器”Proc.5nd Int.Conf.on Adaptive Structures。