Dynamic Optimal Design Of Articulated Dump Frame For Mine

Articulated Dump Truck is an important short-range mechanical transport equipment in the mine or down into the mine, it has high use frequency and has the characteristics of locomotive, flexible, multi-function, economy, so it is widely used in mine haulage. Articulated Dump Truck is vital for transporting cinders, cement, stones, materials and equipments down into mine, meanwhile it has complicated structure and poor use condition, bear larger mass, it often travel poor road conditions. Frame is a very important load-bearing and crucial component for Articulated Dump, it has a direct effect on whole vehicle performance, frame’s design and analysis is not only key quality assurance of design, but also important tool to test operation status for existing products. Meanwhile it becomes an important reflection for design level of the whole vehicle for Articulated Dump Truck.This paper study target is one Articulated Dump Truck by a Design&Research Institute, frame was made structure analysis and optimal design.Frame is subjected to dynamic loading in actual operating process, dynamic characters was need to be analyzed, meanwhile it has larger mass, dynamic optimum design and lightweight design were carried out under dynamic load. Firstly, based on finite element theory, finite element model was established for frame using Hypermesh, static analysis was made for finite element model of the frame under the condition of bend and torsion full load Secondly, dynamic performance was analyzed by Hypermesh, including constraint and free Modes, harmonic response analysis, and transient dynamic analysis, so dynamic performance was validated whether was well or not. Finally, the frame minimum mass was considered as the target function, result parameters of static and dynamic analysis as constraint conditions, thickness of major components for frame as the design variables to be optimized based on sensitivity, design variables what is more sensitive were selected to be new design variables and to do dynamic optimum design, then optimize results were gotten. Static and dynamic analysis were executed for optimized frame according to optimized results, static and dynamic performance were validated whether were well or not, meanwhile lightweight degree was calculate.The results of analysis showed that after optimized static and dynamic performance still were well and could satisfy lightweight requirement, it also reduced the weight by10.93%, knowledge and method what were involved with this paper have a certain reference value for frame structure analysis of mining machine manufacturers.