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Wheel loaders as a major construction machinery in the national economy plays an important role , its performance will directly affect the efficiency of production , life and maneuverability . Loader bucket loader working device , traditional design methods can not meet the requirements of modern design . Developed rapidly with the development of computer technology and the finite element method , is an analysis of the computational complexity of the structure is extremely effective numerical methods . It first ground of successive analysis object is divided into a finite number of unit consisting of discrete combinations thereof, the use of mechanical knowledge to analyze the mechanical characteristics of each unit , and then combine the individual cell characteristics , and the formation of an overall configuration of the control equations , obtained by calculating, overall the structure of the displacement field and stress field results . The finite element method calculation process is very specification , the main steps are done by computer , is a very effective method of analysis . ZL50 loader working conditions , analysis of to select partial load and is set out in the two conditions . Then establish a bucket entity model with Pro / E , and imported into the finite element software ANSYS stress analysis . Attempts to discover from the two conditions , effect the bucket edges lower part of the ear plate wall junction Bucket , Bucket bottom and surgeon board with Celi plate junction stress was relatively large , and the partial load stress more , in order to improve the safety factor of the model proposed improvements: welding stress large bucket bottom part four reinforcing plate side of the first one to strengthen plate distance bucket side 300mm, distance of two adjacent plates 770mm, in order to increase the strength of the bucket bottom . The model stress improved significantly smaller to get better improvement , especially in the original model, the maximum stress . The finite element analysis method of the loader bucket topology optimization research and analysis , the minimum objective function to the overall quality of the loader bucket loader bucket bucket wall , side panels , ear plate , side blades , bucket bottom reinforcing plate , the surgeon plate, the thickness of the reinforcing plate as design variables, and after iterative optimization , in the case to meet the stress constraints , the weight of the bucket decreased from 1214.076kg to 1165.647kg reduced 48.429kg decreased by 3.99 % , saving the material .
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