Recent content by okinaw

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    Critical speed of a vertical shaft

    Thanks to both of you, I read the article of wikipedia but I have some doubts. The article says that the critical speed is calculated approximately as: ω≈√g/ymax being: g=gravity ymax= static deflections (under gravitational loading only) Depending on the orientation of the shaft, the...
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    Critical speed of a vertical shaft

    Hi everyone, I have to calculate the critical speed of a vertical shaft. I have been looking on internet how to calculate, and I have found that this critical speed is based on the type of the supports of the shaft. The type of supports determine the deflection of the shaft (δ) and for this...
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    Column under a concentric axial load (Buckling)

    So, to summarize: If there is no eccentricity and the applied load is less than critical buckling load, there is no displacement. Am I correct? If a displacement happens, it is because there is an eccentricity and due to this eccentricity the column bends. In this case, the displacement would...
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    Column under a concentric axial load (Buckling)

    Thanks for your answer Nidum. I would try to be certain. The column is fixed in both ends. The load on the column is applied through the center of gravity of its cross section. The applied load (F) is less than the critical buckling force, which is calculated by Eulers formula Fcr = (π^2* E*I)...
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    Column under a concentric axial load (Buckling)

    Hi everyone, I have a cylindrical column under a concentric axial load. The load which is applied in the column is less than the critical buckling force (according to Euler´s formula). Due to this load, the column suffers a displacement (buckling effect), and I would like to determine which is...
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