Development of a Metasilencer Considering Flow in HVAC Systems
Source abstract
Abstract
Although the driving noise of electric vehicles has been reduced compared with that of internal combustion engine vehicles, a new interior noise problem is emerging. It is crucial to reduce the noise of the heating, ventilation, and air conditioning (HVAC) system, which is one of the main causes of interior noise. Therefore, in this study, a metasilencer with an acoustic metasurface structure is presented. The metasilencer was designed to restrain the travel direction of the sound wave of the target frequency into a U-shaped configuration using an acoustic metasurface while considering the flow noise effect of the HVAC system. Acoustic analysis confirmed the noise reduction frequency range and refraction effect of the metasurface. The speaker test confirmed the noise reduction effect of the silencer. The same was also confirmed via HVAC tests, even in the presence of a flow.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Acoustic Wave Phenomena Research · Noise Effects and Management · Vehicle Noise and Vibration Control
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Automotive Engineering, Dong-eui University, 176, Eomgwang-ro, Busanjin-gu, Busan 47340, Korea
Department of Mechanical Engineering, Dong-eui University, 176, Eomgwang-ro, Busanjin-gu, Busan 47340, Korea
R&D Division, Hyundai Motor Group, 150, Hyundaiyeonguso-ro, Namyang-eup, Hwaseong-si 18280, Gyeonggi-do, Korea
Funding
Hyundai Motor’s industry-academic research project · Grand Information Technology Research Center
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Show source-provided references
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