Enhancing vibration attenuation through material optimization in dynamic vibration absorbers

This research presents an innovative methodology for enhancing vibration attenuation in fixed-fixed beam systems through the application of dynamic vibration absorbers (DVAs) fabricated from various materials. Employing an advanced Experimental Modal Analysis (EMA), our study meticulously identifies the natural frequencies, mode shapes, and Frequency Response Functions (FRFs) of the system to precisely tune the DVAs. We investigate the vibrational performance of aluminium, stainless steel, brass, and titanium DVAs at motor speeds of 14.8 Hz, 35 Hz, and 46.5 Hz. Our findings reveal that these materials exhibit unique vibration attenuation properties, with aluminium demonstrating superior effectiveness at higher frequencies. This significant improvement in vibration reduction highlights the critical role of material selection in DVA design. This study provides valuable insights for optimizing vibration-sensitive systems, offering a robust framework for enhancing stability and performance across various industrial applications.