Dynamics of Vibration in Crane Operation: An Elementary Modal and Harmonic Analysis

This work aims to study the dynamic aspects related to mechanical vibrations, focusing on vibrational analysis and harmonics concerning safety and maximum efforts supported by operators working with dynamic mechanical equipment. The main goal is the determination of resonance vibrations, displacements, and accelerations at the workstation of a crane operator. A modal and harmonic analysis was performed using the finite element method and the ANSYS software 2022 R1. The findings indicated that the primary vibration modes impacting the operator’s well-being occurred at 1, 2, and 8 Hz, potentially inducing pronounced resonance phenomena in the operator’s head, torso, and feet areas. Nevertheless, other vibration modes are less relevant within the vibrational context, and they should be avoided due to the resonance phenomenon in the system. It was found that the displacements in the crane seat were of the order of 1.4 mm, and the maximum vibration acceleration was 5.48 m/s2.