DASM Institute participated in the International Seminar on Aerospace Technology – ISATECH 2023

On the afternoon of August 24, the research team from the DASM Institute and their colleagues presented a method for optimizing the sound absorption performance of double-layer porous structures at the International Conference on Aircraft Technology, MRO & Operations – ISATECH 2023.

Organized at Le Quy Don Technical University (236 Hoang Quoc Viet Street, Cau Giay, Hanoi), ISATECH 2023 took place from August 24 to 26 in a hybrid format combining in-person and online participation. This scientific event gathered numerous researchers, scientists, manufacturers, and enterprises from France, Brazil, Hungary, Romania, Portugal, Turkey, China, South Korea, Singapore, as well as leading domestic training and research institutions such as Hanoi University of Science and Technology, Le Quy Don Technical University, and Phenikaa University.

“Optimization of acoustic performance of double-layer absorbers based on cellular foams” is a research work by the DASM research team led by Dr. Vu Viet Dung and his colleague Dr. Trinh Van Hai. This research develops a method for optimizing the sound absorption coefficient of double-layer sound-absorbing panels based on open-cell foam materials. The obtained results show that the microstructural parameters of the internal foam layers can be controlled to achieve the desired sound absorption effect in the low and medium frequency ranges.

The presentation by the representative of the authoring group received special attention and lively discussion from the participating delegates. The scientific significance and practical value of the work were highly appreciated. The paper provides a useful foundation for exchanging deep insights into the latest trends in material design applied to practice, especially in the aviation field. This contributes to improving the acoustic environment and controlling noise to bring comfort and convenience; contributing to the development of repair and maintenance capabilities as well as providing one of the potential solutions for a series of challenges facing the aviation industry.

ISATECH 2023 is an international, multidisciplinary conference aimed at addressing topical engineering problems in the aerospace field, such as: aircraft design and optimization, aerospace propulsion systems, aircraft guidance and control, modern manufacturing, MRO, air transport operations, the use of artificial intelligence in aerospace, clean energy and emission reduction, aerospace law, and the electrification of flying vehicles, among others.

In fact, aviation is one of the fastest-growing industries in the world due to the many exciting, multidisciplinary advancements appearing daily in aerospace engineering and energy. It is also one of the most expensive industries because it requires high reliability as well as rigorous, long-term maintenance processes, constantly demanding innovative solutions and featuring diverse research topics. Among the more than 50 topics of this year's seminar, several are related to acoustics and advanced materials, such as:
• Acoustics, vibration, and noise
• Composite materials and ceramics
• Conventional and advanced materials and structures
• Material and structural failure
• Fatigue and fracture of materials

Accordingly, the knowledge, information, and rich experiences gained by the DASM expert team through ISATECH 2023 serve as the basis for the DASM Institute to continue orienting its strategic investment and development in the coming period. The event also affirms the Institute's position as one of the pioneering and leading scientific organizations in the fields of acoustics, acoustic materials, and acoustic consulting in Vietnam.

Nhat Minh/ DASM