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This work is devoted to studying the influence of the bar on the orbitaldynamics of globular clusters. The orbits of 45 globular clusters in thecentral galactic region with a radius of 3.5 kpc were analyzed using spectraldynamics methods in order to identify objects captured by the bar. To form the6D phase space required for orbit integration, the most accurate astrometricdata to date from the Gaia satellite (EDR3), as well as new refined averagedistances to globular clusters, were used. Since the parameters of the MilkyWay bar are known with very great uncertainty, the orbits were constructed andtheir frequency analysis was carried out with varying the mass, length andangular velocity of rotation of the bar in a wide range of values with a fairlysmall 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 ofbar parameters. For the first time, an analytical expression has been obtainedfor the dependence of the dominant frequency $f_X$ on the angular velocity ofrotation of the bar. In addition, the probabilities of capturing globularclusters by the bar were determined when the bar parameters were varied incertain ranges of values according to a random distribution law. A list of 14globular clusters with the most significant capture probabilities is given,with five GCs - NGC6266, NGC6569, Terzan 5, NGC6522, NGC6540 - showing theprobability capture by bar $\geq 0.2$. A conclusion is made about theregularity of the orbits of globular clusters based on the calculation ofapproximations of the maximum characteristic Lyapunov exponents.

The Influence of the Bar on the Dynamics of Globular Clusters in the  Central Region of the Milky Way. Frequency Analysis of Orbits According to  Gaia EDR3 Data