Protection of objects from unmanned aerial vehicles

Introduction. Since the beginning of a special military operation, unmanned aerial vehicles (UAV) have been used to strike industrial, transport, energy and civilian facilities. Currently, a physical method of protecting such objects is actively used — the installation of protective enclosing structures (PES) based on mesh fences. Their function is to prevent the UAV and the charge it carries from contacting the protected object.

Research methods. The main damaging factor in the attack of the UAV is the effect of an air shock wave from the explosion of a charge (munition) on the enclosing structures of buildings and structures. The intensity of the explosive charge at short distances from the charge decreases in proportion to the distance to the third degree, therefore, it is relevant to solve the problem of estimating the minimum distances from the mesh screen to the protected object. In this paper, this problem was solved using computational methods based on empirical relations of M.A. Sadovsky.

Aim. To evaluate the effectiveness of the PES for the protection of buildings and structures from an air shock wave and to assess the possibility of designing and realization of PES in practice.

Objectives. Determination of the minimum distance from the elements preventing the contact of the charge carried by the UAV with the protected object; analysis of the possibility of technical implementation of the PES with the calculated parameters.

Calculation results. As a result of calculations, the values of the minimum distances from the mesh fence of the PES to the protected object were obtained with charges of different masses.

Conclusions. The analysis of the results showed that the use of PES is an effective way to protect buildings and structures from UAV attacks. The existing design solutions and materials of the PES make it possible to implement acceptable security of objects from UAV attacks.

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