Rock Removal Support Crack Reason Analysis And Improve Design For HXN5 Type Locomotive

Type HXN5 AC drive diesel locomotive is a new type of heavy haul freight locomotive made by CSR Qishuyan Co. Ltd. This locomotive is designed by the General Electric Corp. In the beginning of 2013, Xinjiang province Korla locomotive depot use this locomotive. This section of the rail line has the typical curves, the ramp, rail joint much, led to the process by section HXN5 locomotive on the rock removal cracked cantilever structure of batch, the regularity of daily use, the locomotive existence serious security hidden danger.Firstly, our project group analysis and statistical the crack regular position based on HXN5 locomotive rock removal cantilever structure. Then design the locomotive 3D model of rock removal and cantilever structure using Pro/E software. Utilize the ANSYS software for locomotive rock removal cantilever structure of finite element analysis. Based on the region which has cracked stress distribution and models trends under the finite element analysis. According to the optimization design theory of locomotive rock removal cantilever structure was improve designed, and use the software of ANSYS analysis and compare the finite element analysis result before and after the optimization designed of the rock removal. Analysis results show that compared with the original structure of optimized structure, strength and rigidity have obvious ascending. In order to further verify the actual effect of the optimization solution, the resistance strain gauge method and cantilever structure before and after the improved of HXN5 locomotive should be comparative analysis of stress test and vibration test, test results shows that the improved design method is correct and effective.The work of this project solved the HXN5 locomotive rock removal cantilever structure in Xinjiang province Korla section of bad rail line conditions produce batch crack problems. It will run the risk coefficient of locomotive is reduced to a minimum, meet China’s modernization of railway heavy haul freight locomotive requirements. At the same time, also provides the reference value for the study of similar problems at home and abroad locomotive.