%0 Journal Article %A mirshekari, erfan, Poormohamad, Bahman %T Correction and improvement of the vibrations of air fans by increasing the Stiffness and changing the natural frequencies of the structure %J Journal of New Applied and Computational Findings in Mechanical Systems %V 2 %N 3 %P 20-33 %D 2022 %R %U https://sanad.iau.ir/fa/Article/927267