Finite Element Analysis Of Telescopic Boom Structures For Railway Cranes Based On ANSYS

A very important tool involved in railway rescue work is the railway rescue crane,of which the telescopic boom is the main component of the railway rescue crane,its design is reasonable to a large extent affects the crane’s load-bearing capacity.This thesis addresses the strength and stiffness of the telescopic boom of the railway rescue crane,taking into account the elevation angle of zero,the heaviest lifting weight and the longest telescopic boom extension and other five typical special conditions,using Solid Works 2020 to establish a three-dimensional model of the telescopic boom,based on ANSYS-Workbench finite element analysis of the telescopic boom structure of the QTJS160 type railway crane.According to the analysis results of the conventional model,the weak link in the original telescopic boom is improved by adding reinforcement plates to improve the structure of the telescopic boom so that its strength and stiffness are improved and the safety and reliability of the telescopic boom is enhanced,providing design reference and suggestions for enterprises.On the basis of the improved model,the arm thickness of the telescopic boom is optimised.The strength and stiffness of the optimised telescopic boom model is checked using ANSYS finite element analysis software,and the mechanical performance of the optimised model is verified to be up to standard according to the simulation results.The details of this article are.(1)The structural form of the railway rescue crane boom is analysed and the three aspects of the telescopic boom are described in detail in terms of the form of the boom’s cross section,the driving method and the telescopic method.(2)A three-dimensional model of the telescopic boom of the railway rescue crane was built.The secondary structure of the model is simplified accordingly,and some reinforcement bars and reinforcement plates of the telescopic boom are removed to speed up the model building and the running speed of the finite element analysis.The force analysis of the established model is also carried out to obtain the load distribution of the telescopic boom.(3)Pre-processing of the telescopic arm model for finite element analysis using ANSYS software,which includes material setting of the arm body and slider,meshing of the boom model,setting the load and adding constraints to the telescopic arm for the model after meshing.(4)For the conventional telescopic arm model,five typical special working conditions are selected for finite element analysis,and after obtaining the analysis results,the model is strengthened for the analysis results.(5)Establish the strengthened model of the telescopic arm and carry out finite element analysis on the telescopic arm model to obtain the analysis results and satisfy the design conditions.Based on the finite element analysis of the strengthened model,the plate thickness of the telescopic arm model is adjusted from the perspective of model lightweighting,and the optimized model is subjected to static analysis to provide design suggestions for enterprises.