A New Methodology for Estimating Material Damping Coefficient from Impact-Induced Vibrations using a Low-Cost Sensor System

Creative Commons License

Altunterim A., Bilgin S.

International Conference on Next-Generation Engineering Technologies (ISNET'2025), Antalya, Türkiye, 30 Ekim - 01 Kasım 2025, ss.32-33, (Tam Metin Bildiri)

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Antalya
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.32-33
  • Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
  • Akdeniz Üniversitesi Adresli: Evet

Özet

This study presents a robust methodology for extracting the damping coefficient, a key physical property of materials, using a low-cost, IoT-based vibration analysis system. An impact-echo method was employed to generate transient vibrations on a concrete specimen, which were captured by an MPU6050 accelerometer. A signal processing pipeline, involving filtering and Hilbert transform, was used to extract the signal envelope. The damping coefficient was then estimated by applying an Ordinary Least Squares (OLS) linear regression to the logarithmic amplitudes of successive peaks. The proposed method demonstrates high accuracy and reliability, providing a foundational step for non-destructive material classification.