【研究論文獎-得獎心得分享】范維平

國立高雄科技大學 范維平

競賽題目：應用於低頻彎曲波之具寬頻可調性的垂直排列環狀彈性超材料

It is a great honor to introduce myself and to share my experience of participating in the 2025 student competition organized by the Taiwan Society of Precision Engineering (TSPE). My name is Duy Binh Pham (范維平), and I am currently a Ph.D. student in the Department of Mechanical Engineering at National Kaohsiung University of Science and Technology, under the supervision of Distinguished Professor Shyh-Chour Huang. My research focuses on elastic and acoustic metamaterials, particularly on wave modulation mechanisms that provide practical solutions for vibration and noise control in mechanical engineering applications. In 2025, I had the valuable opportunity to present my research at the TSPE annual meeting, where I was honored to receive the Second Place Award. This recognition is highly meaningful to my academic career and has brought me great encouragement and motivation.

The primary purpose of participating in the TSPE 2025 student competition was to present our research group’s recent achievements in addressing critical challenges in vibration and noise control. Specifically, our work aims to develop structures capable of maintaining tuned operational frequency ranges without requiring continuous external energy input. This is a significant limitation in many existing systems, which often suffer from high operational costs, instability, and complexity. In addition, our study demonstrates a notable advancement in tuning performance compared to current state-of-the-art designs, achieving continuous, manual, and stable tunability. My presentation, entitled “Vertically spaced ring-like elastic metamaterials for broadband tunability of low-frequency flexural waves” (應用於低頻彎曲波之具寬頻可調性的垂直排列環狀彈性超材料), was recognized with the Second Place Award among many outstanding participants. The proposed concept shows strong potential for real-world applications, such as vibration mitigation in infrastructures, frame structures, and vibration barriers, contributing to enhanced structural durability and reduced costs in fabrication, operation, and maintenance.

Our project presents an innovative structural design and tuning strategy for modulating flexural vibration suppression, a phenomenon commonly encountered in engineering systems. The proposed approach relies entirely on manual tuning, eliminating the need for re-fabrication or external energy sources. Furthermore, the structure is lightweight and can be efficiently fabricated using 3D printing technology, making it both cost-effective and practical. A key feature of our design is the ability to precisely tune the frequency range of vibration attenuation, which is essential for adapting to varying operational conditions. The effectiveness and feasibility of the proposed concept were validated through analytical modeling, numerical simulations, and experimental testing.

Throughout the development of this project, we encountered several significant challenges. One of the most demanding tasks was the conceptual design of a mechanism capable of overcoming the limitations of existing structures while introducing a novel working principle. This required careful consideration of both geometric configuration and functional performance. Another major challenge was the development of an accurate analytical model for a structurally complex system, while still ensuring computational efficiency. In addition, numerical simulations were time-consuming and required meticulous parameter tuning.

Experimental validation also presented difficulties, as discrepancies occasionally arose between analytical, numerical, and experimental results, necessitating repeated testing and careful verification. Despite these challenges, our strong commitment to advancing vibration control technologies, along with our belief in the practical value of our work, enabled us to overcome these obstacles and achieve our research goals.

Participating in the competition was a highly rewarding experience. I vividly recall presenting our research in front of an audience of distinguished researchers and peers. It was inspiring to observe the diverse and innovative work presented by other participants, which highlighted the rapid development of engineering technologies. During my presentation, I had the opportunity to engage with expert judges who provided insightful questions, constructive feedback, and valuable suggestions for improving both the current study and future research directions. I was particularly impressed by their deep understanding of our work and their genuine interest in our research efforts. In addition, the event provided an excellent platform for networking, allowing me to connect with researchers and engineers from both academia and industry, which greatly broadened my perspective.

From this experience, I have gained not only technical insights but also a deeper understanding of the importance of professional attitude, dedication, and responsibility in research. The overall organization of the event, including the competition sessions, invited talks, and award ceremony, was highly professional, and the fairness of the student competition was especially commendable. This experience has inspired me to continue striving for excellence in my research and to contribute meaningful solutions that benefit society. Moreover, it has helped me further develop my presentation skills, expand my professional network, and strengthen my motivation for future academic pursuits.

張貼日期：2026/05/04