Research Of Subentry Coefficient And Stiffness Of Pot Tending Machine

Aluminum electrolytic multi-function crane is mainly equipment for electrolytic aluminum production, in the environment.of high temperature, high dust, high magnetic field, high current, highly corrosive gas. Aluminum electrolytic versatile crane is essential critical and important equipment for safety product in aluminum electrolytic industry. Fierce international competition in the market more and more dependent on in the competition. These have all contributed technical performance of aluminum electrolytic multi-function crane to enter a new stage of development. Therefore, aluminum electrolytic multi-function crane reliability issues become the focus of competition products.To ensure the reliable operation of the Aluminum electrolytic multi-function crane, we need to start from three stages--design stage, production stage and use phase. The first phase is especially important. The traditional design method is the method of allowable stress,which will consider various parameters that affect the safety of the structure as setting value.This assumption is not accord with the actual project. Therefore, the limit state method has been proposed as the standard at home and abroad,considering load, material properties and other parameters being at random. The practice has proved that the dealing more accords with the actual situation.Based on the probability and mathematical statistics, stochastic process theory and engineering structure reliability theory, the thesis studies the load process of bridge crane metal structure, car displacement process and strength reliability design method,the main contents are as follows:Firstly, On the basis of the standard load spectrum, the thesis combines the statistical distributions and the distribution of car position to analyze the qualities of the load process.Then, The thesis receives the bridge crane stress spectrum by Monte Carlo method, check the hidden goal reliability of the current crane design code and calculate the design coefficient values with the limit state method. Finally, the thesis gets the specific steps of the reliability design according to the stress distributions of the bridge cranes and verifies the correctness of those methods with examples. The result of the research will provide certain theoretical basis for the further improvement of crane standards in our country and calculate for stiffness and strength by ANSYS, we can obtain the stiffness and strength for aluminum electrolytic multi-function crane with three girders is ok.