Dynamic Simulation Analysis of Wind Power Crane Multi-body System

Abstract

As the wind power industry expands into low-wind-speed regions, traditional wind turbine installation equipment struggles to adapt to complex working conditions such as rugged terrain, weak ground-bearing foundations, and confined construction spaces. Developing new-type non-attached wind turbine cranes suitable for these special environments has become an urgent engineering challenge. A wind turbine crane is specialized equipment used for the loading and unloading of wind turbine components, as well as an indispensable piece of engineering machinery in the development of modern green energy. During hoisting operations, the wind turbine blade inevitably experiences pendulum motion due to influences such as inertial force and centrifugal force.Aiming at the special construction conditions of low-wind-speed wind farms and the hoisting requirements of high-tower wind power equipment, this paper focuses on the research of a wind turbine crane that is efficient, safe, non-attached, adaptable to weak ground-bearing foundations, and suitable for limited construction areas. Using co-simulation technology with ANSYS and ADAMS, a rigid-flexible coupled dynamics model of the truss structure and wire rope was established: the boom and wire rope were flexibly processed in ANSYS to generate modal neutral files, which were then imported into ADAMS to complete the multi-body system modeling and simulation analysis. Through dynamic response analysis under typical working conditions such as slewing, hoisting, and luffing, it was found that the maximum dynamic load on the boom is 520,000 N (during hoisting) and the maximum partial load is 26,000 N (during operation). Moreover, the displacement fluctuation of the load during slewing does not exceed 1 m, verifying the overall stability of the non-attached tower crane boom during hoisting operations. This study provides key technical references for the optimized design of new-type wind turbine cranes.