Also, fundamental frequencies
deviations of -0.5%,1%, and 2% were tested.
Based on results given in Tables 3-12, it can be concluded that in the case of the posed problem the highest accuracy was achieved by applying the DQM, also in most cases the accuracy of the results obtained by the HWM is higher than that obtained by the FDM (there fundamental frequencies
in Tables 3 and 7 are exceptions).
Corresponding fundamental frequencies
could be obtained through conducting a frequency-domain analysis on concrete beams under various pre-stress values.
The fundamental frequencies
are 131 Hz and 147 Hz, respectively.
However, when the sector plate is under the elastic boundary condition, the effects of the power-law exponent on the fundamental frequencies
of the sector plate are different and a little more complex.
On the basis of the previous research achievements on fundamental signal parameters in STWT, the initial two-tone fundamental frequencies
[[omega].sub.1] and [[omega].sub.2] are set as 1.50 and 1.52 GHz; phase and amplitude are 0.0[degrees], -10.0 dBm.
A modal analysis is also conducted to calculate the mode shapes and the fundamental frequencies
. bearings are kept free in all directions to calculate the mode shapes.
Applications up to three-phase, four-wire are supported by four V and four I inputs (via clamp-on probes) for 50-Hz, 60-Hz, and 400-Hz fundamental frequencies
. RMS measurements are refreshed each half-cycle and use a 200-kHz sampling rate.
In the initial period of dual-rotor experimental rig operation, the normal status should be firstly determined, and the specific practices are as follows: when the fundamental frequencies
[X.sub.1] and [X.sub.2] observed from the test and control system written in LABVIEW are most prominent ([X.sub.1] represents the fundamental of inner rotor and [X.sub.2] represents the fundamental of outer rotor), it is considered to be the normal status, as shown in Figure 3(a).
The tests were conducted to compare the fundamental frequencies
and bending stiffness and strength between realistic floor specimens and to determine how effective the different fastening systems are in developing the composite action between the sheathing and floor joists.
Some numerical comparisons have been performed with reference to Adali's paper  in which the fundamental frequencies
of clamped-free double-walled nanotubes have been computed by Rayleigh-Ritz (R-R) method.