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  1. vdubinsky

    Piston Oscillation in Fluid - Resistance Force

    I would like to thank both of you for your valuable input and advice re: solving this problem!
  2. vdubinsky

    Piston Oscillation in Fluid - Resistance Force

    ivymike, thanks for your comment... but can you, please, be more specific? Can you please provide a formula along w/ brief explanatory comments or a reference to a book or a paper that could help my resolve this problem? It's not a homework, it's a calculation task that needs to be performed...
  3. vdubinsky

    Piston Oscillation in Fluid - Resistance Force

    I would like to estimate the resistance force applied to a piston that oscillates in a fluid. Let's say we have a piston with the surface area S that oscillates in water with the frequency Fo and the displacement magnitude Ao, i.e. x = Ao*sin(2*pi*Fo*t). How can I estimate (analytically or...
  4. vdubinsky

    Radial / Circumferential Resonance Frequency of Cylinder

    I would like to know the analytical solution (formula) for the natural RADIAL / CIRCUMFERENTIAL resonance frequency of a cylinder. Please note that I am NOT talking about a longitudinal resonance that depends on the cylinder length (let’s assume that the cylinder has an infinite length). I...
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