BenA

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BenA
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40
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7
  • A random vibration problem

    The displacement of the midpoint from the equilibrium at the time 1.1s is -0.121. (redo)


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  • Steady state heat flow with source

    My heat flow problem where I found the steady state temperature distribution: $$u_t=3u_{xx}+1$$

    My boundary conditions were: $$u(0,t)=-3$$ and $$u(1,t)=4$$

    Since $u_t=0$ when the bar is in steady state I used this to solve for $u_{xx}$, which I got was $u_{xx}=\frac{-1}{3}$. Then integrating twice: $$u(x)=\frac{-1}{6}x^2+Cx+D$$

    I found these constants by using my boundary conditions: $C=\frac{43}{6}$ and $D=-3$

    Finally I got: $$u(x)=\frac{-1}{6}x^2+\frac{43}{6}x-3$$

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  • Random heat evolution problem

    (Redo) A metal bar of length 1 lies along the unit interval. Its temperature distribution is given by: $$g(x)=4x^2-2x$$

    At time t=0, its left end is set to t=-3 and the right end t=-1. Sketch of temperature distribution at times t=0, t=.01, t=.1, and t=10 is below:


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  • Modeling 2D Heat Flow

    The temperature at the midpoint of the insulated side of the triangle at 1s was 0.096.

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  • Eigenranking

    My team matrix: [

      [0,3,3,2,2],

      [4,0,1,3,1],

      [1,4,0,4,2],

      [2,1,3,0,2],

      [3,1,4,2,0]

     }

    Team 3: rating = 0.4848807961654844
    Team 5: rating = 0.47317429197368976
    Team 1: rating = 0.4632070845269747
    Team 2: rating = 0.4163867448282543
    Team 4: rating = 0.39122624975897735
    

    Team 3 had the highest rating at 0.48488.

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  • Modeling a steady state heat distribution in 2D

    With my unique conditions I formed a polygon where $\kappa=0$ and $f=0$, meaning there was no external heat source present and no signs of growth/decay. After reaching steady state the temperature in the lower right hand corner of the polygon was $u=0.87677$.


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