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Stress distribution of blast furnace shell is important to the security of structural system. According to real loads of blast furnace and temperature loads, this paper carries on the analysis of elastic finite element to a blast furnaces utilizing the software ANSYS. The result shows that most areas of the blast furnace are in elastic state, and only a few around holes are in plasticity state as the result of stress concentration; temperature loads have great influence over the structure stress and displacement. We obtain the stress distribution of blast furnace that is useful in the design of subsequent blast furnace.

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This paper takes a salient pole permanent magnet wind generator as the research object and summarizes the calculation method of its super-transient reactance parameters. The analytical method and parameter identification method are selected to analyze the influencing factors of the direct axis super-transient reactance parameters. Finally, the variation law of direct axis super-transient reactance parameters with the number of parallel branches, short pitch ratio, and diameter of damping windings is obtained, which provides a certain reference for the dynamic performance evaluation of permanent magnet motors.