Sentence examples for modal frequency estimates from inspiring English sources

A correlation analysis is then conducted showing that environmental and operational factors (e.g. temperature and pedestrian traffic) induce significant nonlinear effects on the modal frequency estimates, which may mask subtle early damage.

For a given mode, the amplitude and phase are extracted from the band-pass filtered residual (signal after the other modes are removed), where the band-pass filter is applied about the previous modal instantaneous frequency estimate.

The approach of Prony model to estimate the electromechanical properties of power grids can be broken down into two parts [2, 3]: first, calculating the eigenvalues of discrete model for estimating the modal frequency and damping ratio; second, computing the weights or coefficients to further extract the mode shapes properties.

First, a numerical model (Rayleigh's energy method) and an experimental modal analysis of the rotor-only are utilized to V&V the bending natural frequency estimates of a rotor FEM simulation model.

Thereafter, an analytical model (two degree of freedom method) and a modal analysis of the integrated rotor-AMB system are employed to V&V the rigid body natural frequency estimates of a rotor-AMB FEM simulation model.

Modal frequency, modal damping ratio, mode shape magnitude, and mode shape angle are the key parameters describing the electromechanical modal properties of a power system [1].

Both static loading and modal frequency analysis are performed.

Then, the modal frequency is reduced to lower frequencies (20,100 and 200 Hz).

It is observed that the wavelengths of the modal shapes generally decrease with the modal frequencies of the cantilever deck, and the wavelength of the mode shape with modal frequency 3.373 Hz just equals the vehicle length of 25 m.

The next section examines the relationship between the modal frequency and transmissibility.

The relation between the modal frequency and vibration has not been studied.