Topology Optimization And Performance Analysis Of Loader Working Device

As a heavy material scraping machinery,CLG856 loader is widely used in engineering.But its energy consumption compared to small and medium loaders,there is a big disadvantage,which seriously affected its market competitiveness.Firstly,this paper studies the topology optimization principle and its practicability,and analyzes its application feasibility on the loader working device.In the process of specific analysis,the kinematic optimization of the working device is carried out,the corresponding multi-objective optimization model is established and the improved NSGA-2 algorithm is used to solve the optimization of the connecting rod size;And analyze the loader in a working cycle of the actual working conditions,according to the empirical formula to calculate its load in a variety of conditions.Using finite element analysis software ANSYS to analyze the stress distribution on the main components of the working device under various load conditions,it is found that the stress distribution is not uniform and there is the possibility of optimization.After analyzing the distribution of boom stress,the initial model of boom topology optimization is established to determine the reasonable design area and non-design area.The topological optimization of the boom structure is carried out by using the topology optimization module OptiStruct in Hyper Mesh software under different loads to find a reasonable distribution of materials under various conditions.Finally,the weighted flexibility optimization method is used to optimize the boom topology under multiple operating conditions.The optimized model is not only the weight is reduced,but also the mechanical properties are improved.As the loader working device is a moving part,their weight needs to consume a lot of useless work when it works.The paper not only analyzes the improvement of structural mechanics performance by topology optimization,but also qualitatively analyzes the advantages of energy consumption caused by the weight reduction of boom.Using multibody dynamics analysis software ADAMS to simulate the energy consumption of a different weight structure under a shovel cycle,and summed up the conclusion that the reduction in the weight of the work unit can effectively reduce the overall energy consumption.