An experimental setup for determining the dissipative properties of materials of elements of general ship systems

摘要

The utility model relates to techniques for testing materials and structures, in particular to methods for studying the damping properties of structural materials. The essence of the utility model lies in the fact that the experimental setup provides the determination of the damping properties of materials of various tubular and rod structures with vibration-absorbing coatings applied to them by damped transverse vibrations of the samples. The technical result is to obtain a true dependence of the energy dissipation characteristics of the material on the amplitude of one or another type of deformation. An experimental setup for determining the dissipative properties of materials of elements of general ship systems, containing a mechanical part, a vibration system and an excitation system, while the mechanical part consists of a massive plate with racks installed on it, on racks and on the plate there are beams containing adjusting devices to ensure length changes and spatial arrangement of strings and their replacement; the vibration system consists of two massive shoes made with the possibility of fixing the test sample with wedge clamps, carriages are attached to the shoes from above and below to ensure accurate suspension of the samples in the vibration nodes of the vibration system, while the vibration system is suspended on strings between the beams; the oscillation excitation system consists of ferromagnetic plates and brackets made with the possibility of their location on both sides of the test sample, an electromagnet is located on each bracket, and ferromagnetic plates are located opposite each of the electromagnets, the electromagnets are rigidly connected to one of the shoes and made impact on another shoe by forming a closed power circuit, and the vibration excitation system is located on the vibration system. 1il.