SHOCK IMPACT AND VIBRATION PROTECTION DEVICE Russian patent published in 2021 - IPC G12B3/08 F16F15/00 H05K7/02 H05K7/14 

FIELD: physics.

SUBSTANCE: invention can be used in equipment used in conditions of intense shock impact and vibration. The technical result is achieved by the fact that the device for protection against shock impact and vibration has a body with a base on which the equipment is installed in the form of a package of printed circuit boards, made in the form of two disks of larger and smaller diameters placed on top of each other and rigidly fixed to each other without a gap. The package of printed circuit boards is mounted on a disk of a smaller diameter, and a disk of a larger diameter interacts with the surface of the end surface of the body. The base is installed with the ability to move in two perpendicular planes relative to the axis of rotation of the body when the device is exposed to external forces that exceed in value the force with which the disk of a larger diameter is pressed by the surface against the end surface of the body. A transition disk is installed in the body, to which a disk of a smaller diameter is connected cantilevered by flexible rods, providing a gap between the disk of a smaller diameter and the body, which, with the maximum displacement of the base relative to the axis of rotation of the body, is at least 2 times higher than the amplitude of natural oscillations of the disks of a larger and smaller diameter at the resonant frequency. The gap between the transition disk and the body is at least 5 times greater than the maximum body displacement under shock impact. Flexible rods are located asymmetrically relative to the axis of rotation of the body.

EFFECT: ensuring the use of electronic equipment with electronic components that are not adapted to shock conditions with acceleration exceeding 5000g, in limited volumes of compartments of a small-sized aircraft in a wide range of frequencies of high-intensity effects, with a minimum response time of the damping properties of the structure to shock impact and vibration, taking into account that, that impacts of different nature can coincide at the same time.

1 cl, 1 dwg