Vibration Characteristic Analysis of a Rack-Climbing Lift Platform Based on a Rigid–Flexible Coupled Model

In response to the difficulty of accurately analyzing the vibration characteristics of guide frame lifting platforms using multi-rigid body models, this paper proposes a flexible-rigid coupling dynamic equation and simulation model. By integrating ANSYS APDL and ADAMS, an organic replacement between the flexible components and rigid bodies is achieved during the process of flexibilizing the lifting platform. A joint ANSYS-ADAMS simulation is conducted to analyze the axial vibration characteristics of the guide frame lifting platform under standard operating conditions. Additionally, simulations are performed to assess the impact of various operating conditions, including running speed, load magnitude, off-center loading, and braking time, on the vibration characteristics of the platform. The accuracy and validity of the proposed model are verified through experimental data on axial vibration characteristics and vibration acceleration. This research provides a theoretical foundation and model support for subsequent structural optimization, comfort design, and vibration pattern studies of lifting platforms