The Interactived Rapid Design And Optimiztation For Double Beams Structure Of Overhead Crane

Many overhead cranes which are serving in manufactories are designed by using traditional calculating methods, some parts are designed on experience and this would reduce the work of material or even waste some material. In recent years, many advanced design tools, which are applied for improving the effective of material and decreasing the safety factors, have been used widely. However, engineers have to own theoretical background to judge the correctness of the result if they want to use these approaches. As a numerical method, The Finite Element Method can solve the complicated structure calculation by dispersing the whole continuous region as discrete continuous regions and using interpolation calculation methods, this method demand the engineer good theoretical background of FEM.The research aims to reduce the burden of designers, the EFM model and 3D model about the structure of overhead crane can be obtained respectively by making program, finally the working drawings can be obtained on the basis of 3D model and the FEM model is working for design. Because of the simple mechanical structure, The program can be written more easily by using VS2012、SQL Server2008、Solid Works2012 and ANSYS12.1. The versatility of the program can be increased by using these tools. The engineers can optimize the structure and design more reasonable structure by analysing calculation conditions of overhead cranes. Finally, the stress of overhead crane can be deduced by optimizing the local structure of partition, this would reduce the situation of stress concentration near the toe of weld and avoid the crack between partition and plate which usually occasions in projects, this would increase the reliability and safety of overhead crane.The result of this research will help designers obtaining three different types of connection between main beams and side beams and three different types of track fixing instead of a single type of overhead crane, a simple method for optimizing the beam cross section has been deduced, another method for reducing the stress concentration near the toe of weld at the bottom of big clapboard has been deduced. The engineers can reduce design period and improve quality of products by using this program. It is clear that this study is useful for engineering.