Development of an efficient design method for vibrating machines utilizing synchronization phenomena.
Monozukuri (Saitama University Research Seed Collection 2025-27 p.69)
Keywords: synchronization phenomenon, nonlinear vibrations, mechanical vibration theory, mechanics, utilization of vibrations
The synchronization phenomenon refers to the occurrence where entities with different rhythms are drawn into the same rhythm through some means. This phenomenon is characterized by the ability to align to the same rhythm without special control and has been applied in a wide range of fields, not only in mechanical vibrations but also in electrical and electronic engineering. However, there are issues regarding the unknown mechanisms of occurrence and the methods to achieve the desired frequency and amplitude, necessitating trial-and-error approaches using intuition and empirical rules to find optimal design values for effectively applying synchronization phenomena in vibrating machines. In this research, we proposed a method to efficiently investigate the parameters that lead to the occurrence of synchronization phenomena by focusing on the energy consumed by the entire system and the energy exchanged. The proposed method allows for the estimation of optimal design values using formulas to achieve the desired frequency and amplitude. Currently, we are developing optimal design methods for vibrating conveyors and other applications of synchronization phenomena based on this proposed method.
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basic information
Miwa Sueda, Assistant Professor Graduate School of Science and Engineering, Department of Mechanical Science, Human Support Engineering Area 【Recent Research Themes】 ● Mechanical analysis of pumping motion (a motion that generates propulsion through vertical movement of the center of gravity) ● Analysis of friction vibrations generated in string instruments ● Development of power generation devices utilizing self-excited vibrations
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【Appeal Points to the Industry】 ● Frequency control of multiple rotating machines that does not require theoretical control ● Optimal design of vibrating machines based on energy conditions 【Examples of Practical Application, Use Cases, and Utilization】 ● Application to vibrating machines (vibrating conveyors, vibrating screens, etc.) ● Development of vibration control mechanisms for rotating machines using motors and other devices
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Experimental device modeled after a vibrating conveyor.
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The Saitama University Open Innovation Center is a center that functions as a liaison office for industry-academia-government collaboration. It consists of three departments: the Industry-Academia-Government Collaboration Department, the Intellectual Property Department, and the Startup Support Department, each staffed with coordinators well-versed in various fields. The center's activities include solving technical challenges in companies, supporting the implementation of joint research, and conducting technology transfer aimed at introducing and utilizing Saitama University's intellectual property.