Parametric Finite Element Analysis And Structure Optimization Design Of Escalator Steel Frame

With the development of the society,the requirements for the modern escalators are getting higher and higher.Escalator steel frame,as the support of the entire escalator system,is a key component of the entire escalator system.The reliability of the escalator steel frame directly determines the safety of the escalator and therefore becomes the focus of escalator research.Considering the safety factor,the excessive safety factor is selected in the calculation of the steel structure of the escalator.The excessive safety factor causes great waste of the steel material.How to reduce the escalator cost and improve the product reliability has become the key to the sustainable development of the elevator company.The project relies on a company to escalator for the study,the design drawings for the extraction of characteristic parameters,research escalator steel frame structure,analysis of many types of escalator steel frame structure similarities and differences.In accordance with the needs of customers,the development of escalator steel frame automation analysis system can be automated escalator steel frame analysis.Enter the escalator steel frame modeling parameters in the interface,through the logical operation in the database to retrieve BOM,to BOM matching to obtain the modeling analysis of the relevant parameters to the CSV form.By calling ANSYS background batch calculation,and in the analysis of the system window shows the calculation results.So that non-professionals easier to get started operation,analysis and calculation process to achieve automation.Finite element calculation of the escalator steel frame static analysis,including analysis strength,rigidity and stability analysis,based on national standards GB 16899-2011 "Escalators and moving walkways manufacturing and installation of safety norms" determines whether or not compliance with safety requirements.Stability analysis was performed to obtain the critical buckling load value.Modal analysis determines the natural frequency and mode of the escalator steel frame structure and compares the external excitation frequency to avoid the unnecessary resonance loss.Using the structural optimization design method,under the premise of ensuring the strength and stiffness performance of the escalator steel frame structure,the total weight of the escalator steel frame is optimized.Optimize the design for the change in cross-sectional dimension of the escalator steel frame,to reduce the total weight of the escalator steel frame,save steel,reduce costs.