This study investigates the varying-order analysis based on mechanism, and realizes it in dynamic signal processing of rotary machinery. Firstly, the synthetic signatures consisting of fixed-order, varying-order components and resonance-related ones as well are designed to validate the developed computation schemes. Secondly, this work takes an electrical scooter as a test bench, which some experiments have been conducted on. The noise and vibration signatures are measured and processed to characterize different spectral components and identify their sources. Some of the annoying ones belong to fixed order (e.g., gear whine noise), varying order (e.g., CVT-belt noise) and structure resonance (e.g., the structure-borne noise originated from the CVT housing). Therefore, the concerned noise/vibration can subsequently be coped with via machine component modification.
|Number of pages||6|
|State||Published - 2001|
|Event||18th Biennial Conference on Mechanical Vibration and Noise - Pittsburgh, PA, United States|
Duration: 9 Sep 2001 → 12 Sep 2001
|Conference||18th Biennial Conference on Mechanical Vibration and Noise|
|Period||9/09/01 → 12/09/01|