The elastic moduli were determined using an algorithm (Figure 2) that compared the experimentally determined natural frequencies
with those using the finite element method (FEM).
25) in the constitutive relations of different nonlocal beam theories and solving the resulting eigenvalue problem, the natural frequencies
of nanobeams embedded in an elastic medium can be obtained.
05, the 1st and 5th natural frequencies
of the structure are 1.
Stiff components like control arms and steering knuckles often behave in a quasi-static manner because their natural frequencies
are far higher than the frequencies characteristic in road, engine, and other service loading.
The aim of this work is to determine natural frequencies
and mode shapes of a hollow box shaped girder using detailed FEM and to compare the results with simple beam model which has the same cross sectional properties.
The natural frequencies
extracted from PSD of angle measurements are compared with the previous ones measured by the reference accelerometers.
5 mm), the natural frequencies
associated with the fundamental vibration modes of the FCoS are calculated and listed in Table 2.
As can be observed, there are a couple of trends in the MWD parameters of the HMW portion with the natural frequencies
of the bubble for the different resins: it is observed that the higher the [M.
2013) calculated natural frequencies
of three-layered functionally graded cylindrical shells with middle layer consisting of isotropic material resting on Winkler and Pasternak elastic foundations.
To calculate the sensitivity of the natural frequencies
of local defects were considered damage to homogeneous reduction of all the stiffness at point without changing in mass of the structure.
From the above simulation method, one can change the parameters, such as soil distribution, foundation dimensions, and pier condition, to perform numerous finite element analyses and get bridge natural frequencies
Based on the fact that natural frequencies
are sensitive indicators of structural integrity, the relationship between frequency changes and structural damage was discussed in a review by Salawu .