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  • Users: mina1363
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  1. mina1363

    Natural frequency and mode shapes of continuos systems

    Hi, Is there anyone who has a good understanding of vibration of continuos systems. I need to calculate the natural frequencies of a 1D bar governed by the wave equations: d^u/dt^2 = sqrt(E/rho)*d^u/dx^2 . I have an idea of how to obtain the natural frequencies using fixed or free boundary...
  2. mina1363

    1D bar, fixed at one ends, Forced at the other end

    Hi All, I am having difficulty understanding a set of results I have obtained by solving the dynamic equations of a 1D bar, fixed on the left hand side, and excited by an external force of F0*sin(w*t)on the right hand side. I have integrated in time using an explicit Euler scheme. I suspect for...
  3. mina1363

    Heat transfer analysis of an aluminium sheet

    I am trying to model the heat trasfer in a square Aliminuim sheet. Heat is applied to the sheat from a heater block that is attatched to the Aliminuim sheet in the middle. The power from the heater is 150 W and the sheet is initially at room temperature.I'm not sure about a few things: 1) When...

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