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Reduction in Floor Impact Noise Using Resilient Pads Composed of Machining Scraps.
Donghyeon Lee1, Jonghoon Jeon1, Wanseung Kim1
1Department of Mechanical Engineering, Hanyang University, Seoul 04763, Republic of Korea.
Polymers
|October 26, 2024
Summary
Machining scraps can be used as resilient pads to reduce floor impact noise in buildings. These scrap pads offer a sustainable alternative to traditional polymeric pads, effectively minimizing noise transmission.
Area of Science:
- Materials Science
- Acoustics Engineering
- Sustainable Construction
Background:
- Floor impact noise is a major concern in multi-story buildings, affecting residents' quality of life.
- Floating floors with polymeric pads are used to mitigate noise, but sustainable alternatives are needed.
Purpose of the Study:
- To investigate the use of helically shaped machining scraps as a resilient material for floor impact noise reduction.
- To evaluate the performance of scrap pads as an alternative to polymeric pads in floating floor systems.
Main Methods:
- Dynamic elastic modulus and loss factor of scrap pads were measured using vibration testing.
- Heavyweight impact sound experiments were conducted in an actual building.
- An analytical model was used to simulate the floating floor structure's response.
Main Results:
- Scrap pads demonstrated a low dynamic elastic modulus and high loss factor compared to polymeric pads.
- The proposed scrap pads significantly reduced structure-borne vibration and sound generation in impact noise tests.
- Experimental and analytical results confirmed the effectiveness of scrap pads.
Conclusions:
- Helically shaped machining scraps are a viable and sustainable alternative resilient material for floating floors.
- The use of scrap pads contributes to minimizing floor impact noise and promotes eco-friendly construction solutions.
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