| Hydraulic excavator is more and more widely used along with the high development of national economy; therefore the market is increased quickly. Many single proprietorship and joint venture enterprises enter into Chinese market make the competition of excavator market more and more fiercer.Implement is the main component of excavator, it is very important to excavator performance. Boom is the main working component of implement, the design of boom is much more crucial. To design reliable and economic structure and dimension for boom, it must use advanced design method.Computer-Aided Engineering analysis technique and software become the key important technique element in this circumstance. By using CAE technique, it can analyze the performance and reliability of project and product, also can simulate the working condition and operating action, make it to find out the design defect at an early date, validate the product function and performance. At the product development period, enterprise use CAE technique to simulate components or products, so product defect could be found out before prototype made, then optimize the product design. In this way, it cuts down the product develop cost greatly, also makes a strong foundation for new product stabilization and marketing leading-in, accordingly enterprise competitive power would be highly enhanced.For the working simulation technique this article wrote, it means checking stress for specified position of boom with different working condition and loading, also analyze the working condition, then according to analysis result, choose the most effective working condition and loading to structure intensity as the next step Finite Element Analysis’s. In this article, through analyzing the boom structure, establish the predigest method of boom FEA analysis and disposal way for restriction and loading. At the end of the article, after validating the analysis result by field test, evaluate the analysis reliability. |
