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MBA, Ph.D in Management
Harvard university
Feb-1997 - Aug-2003
Professor
Strayer University
Jan-2007 - Present
Calculate the theoretical first resonant frequency of the beam with the following information.
ai coefficients = (3.526 , 22.03 , 61.70 , 120.91 , 199.85)
Beam Length (L) = 11.5 inch
Beam width (b) = 1.0 inch
Beam thickness (h) = 0.125 inch
Â
Use young's modulus and density for 7075 aluminum.
Â
Mass per unit length is ​m​¯​​
Â
Natural frequency is: f​i​​(a​i​​)=​2π​​a​i​​​​√​​​m​¯​​L​4​​​​EI​​​​​
Â
Moment of Inertia is: I=​12​​bh​3​​​​
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