Quayside container bridge crane is a professional equipment for loading and unloading containers at the wharf.The front girder,trapezoidal frame and pull rod of a quayside container crane are often subjected to alternating load and impact load,and will be affected by corrosion,film peeling and cracks in the open-air wharf environment,which will seriously affect its rigidity.Therefore,taking the quayside container crane as the research object,a damage simulation method of quayside container crane based on stiffness reduction method is proposed.A finite element model was established to simulate the damage of the front girder,trapezoidal frame and pull rod of the quayside container crane,and the displacement and strain under different stiffness reduction degrees were obtained.Considering that these three kinds of damages do not exist independently,the orthogonal test was performed to simulate these three kinds of damages based on the damage model,and the response data under multi-damage conditions were obtained,which further unveils the damage law of the quayside container crane under actual working conditions.
万方数据
维普
