  This work is devoted to studying the influence of the bar on the orbital
dynamics of globular clusters. The orbits of 45 globular clusters in the
central galactic region with a radius of 3.5 kpc were analyzed using spectral
dynamics methods in order to identify objects captured by the bar. To form the
6D phase space required for orbit integration, the most accurate astrometric
data to date from the Gaia satellite (EDR3), as well as new refined average
distances to globular clusters, were used. Since the parameters of the Milky
Way bar are known with very great uncertainty, the orbits were constructed and
their frequency analysis was carried out with varying the mass, length and
angular velocity of rotation of the bar in a wide range of values with a fairly
small step. The integration of orbits was carried out at 2.5 billion years ago.
As a result, bar-supporting globular clusters were identified for each set of
bar parameters. For the first time, an analytical expression has been obtained
for the dependence of the dominant frequency $f_X$ on the angular velocity of
rotation of the bar. In addition, the probabilities of capturing globular
clusters by the bar were determined when the bar parameters were varied in
certain ranges of values according to a random distribution law. A list of 14
globular clusters with the most significant capture probabilities is given,
with five GCs - NGC6266, NGC6569, Terzan 5, NGC6522, NGC6540 - showing the
probability capture by bar $\geq 0.2$. A conclusion is made about the
regularity of the orbits of globular clusters based on the calculation of
approximations of the maximum characteristic Lyapunov exponents.
