Strength Calculation and Structural Improvement Design of Supporting Rollers for Rotary Reaction Vessels
A rotary reaction vessel with a hyperstatic structure is supported by 8 rollers.This article proposes a roller strength calculation method to provide a theoretical basis for optimizing the support system.Firstly,simplify the statically indeterminate structure into a statically indeterminate structure and calculate the support reaction force based on the ultimate support situation.Furthermore,for hyperstatic structures,establish static equilibrium equations and deformation coordination equations to solve the roller support reaction force,and then determine the maximum bending stress and contact stress of the roller based on bending and contact theory.And the maximum bending stress of the roller under certain working conditions was obtained through finite element calculation and experimentation.Compare the experimental results and finite element results with the theoretical calculation results,and propose a structural improvement plan to address the stress concentration phenomenon on the roller.The comparison of results shows that the proposed stress calculation method and structural improvement plan are feasible.
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