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Generation of Motion Pattern Based on the Cooperation of Locally Controlled Self-Excited Oscillators and its Application to Vibration Transportation

基于局控自激振荡器配合的运动模式生成及其在振动传输中的应用

基本信息

批准号：
12650233
负责人：
KURITA Yutaka
金额：
$ 2.5万
依托单位：
THE UNIVERSITY OF SHIGA PREFECTURE
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2000
资助国家：
日本
起止时间：
2000 至 2002
项目状态：
已结题

项目摘要

The aim of this study is to investigate the mechanism of the generation of motion pattern based on the cooperation of locally controlled self-excited oscillators.First, we investigated the cooperation mechanism between self-excited oscillators from the viewpoint of frequncy entrainment. We used self-excited oscillators which is, controlled by velocity feedback with variable gain, because its mechanism to change the state of oscillation into self-excitation and vibration suppression is simple. When external force to the oscillator is small, the velocity feedback has a positive gain and self-excited vibration is generated. When external force is large and vibration amplitude reaches reference only by forced vibration, the velocity feedback actively suppresses vibration, and frequency entrainment occurs. The synchronization limit of foeced entrainment is derived from the resonance curve of forced vibration. Frequency entrainment in the plural oscillators can be treated as forced entrainment by substituting external force for the interaction of other oscillators.Then we investigated the mechanism of the generation of motion pattern. We showed any phase delay between the oscillators can be generated by apllying the control force, which can be made from properly weighted displacement and velocity of adjascent oscillators, to each oscillator. This method enables us to generate any motion pattern.Finally, we applied this method to drive vibration transportation machines, and we realized vibration transportation by cooperation of decentralized self-excited vibratory machines.

本研究的目的是探讨局域控制自激振子合作产生运动模式的机制。首先，我们从频率夹带的角度研究了局域控制自激振子之间的合作机制。我们采用自激振子，这是由速度反馈控制的可变增益，因为它的机制，以改变振荡状态的自激和振动抑制是简单的。当外力较小时，速度反馈具有正增益，产生自激振动。当外力较大且振幅仅通过强迫振动达到参考值时，速度反馈主动抑制振动，并发生频率夹带。由受迫振动的共振曲线导出了强迫卷吸的同步极限。通过用外力代替其他振子之间的相互作用，可以将多振子之间的频率卷吸视为强迫卷吸，并研究了运动模式产生的机理。我们证明了振子之间的任何相位延迟都可以通过对每个振子施加控制力来产生，该控制力可以由相邻振子的适当加权的位移和速度产生。最后，将该方法应用于振动输送机的驱动中，实现了分散式自激振动机的协同振动输送。