Review: Reducing Vibration Amplitude with Parametric Optimization and an Efficient Dynamic Vibration Absorber for a Supported Beam

Abstract

The primary vibrating system of the supported beam type, employed in numerous places such as bridges and double-beam constructions, has its theoretical natural frequencies and Mode shape specified. It is possible to lessen beam vibration and assess the efficiency of tuned vibration absorbers on a beam structure by determining the location and quantity of dynamic vibration absorbers (DVA) on a supported beam. When DVAs are present, the vibration amplitude lowers; the reduction amount depends on the number and location of DVAs. Additionally, the Vibration of the structural beam can be affected by the connected DVAs. Connecting the DVA at the optimal location of the vibrational peak is crucial, and it depends on the vibration modes. Harmonic analysis determines the harmonic response for external excitation. Finally, the operating conditions of the primary structure or equipment can affect the performance of the DVA. For instance, if the immediate structure experiences varying loads or forces, the DVA must be designed to accommodate these changes.