The method of Selecting the Characteristics of a Belt-Rope Damper with a Torsion Bar or a Single-Acting Hydraulic Cylinder

The article considers a new type of vibration dampener, which is a ribbon-cable system equipped with a single-acting hydraulic cylinder or torsion bar. The principle of operation of the damper is to generate internal forces to counteract the oscillatory movements of the protected object. This type of vibration dampener can be used on buildings and structures for various purposes experiencing seismic impacts. A mathematical method for determining the magnitude of external force influences on the protected nodes is given in order to select effective parameters of the damper. The torsional stiffness of the torsion bar and the stiffness of the spring of the hydraulic cylinder or the coefficient of resistance to the movement of the fluid of the hydraulic cylinder is taken as the parameter under study. The authors conducted a series of numerical experiments that showed the effectiveness of the developed vibration damping systems. The calculation results showed the effectiveness of this principle of operation of the damper. The greatest contribution to the damping of vibrations is made by the parameter of the longitudinal force in the belt (cable) of the damper, with an increase in which there is a significant decrease in the magnitude of the amplitude of vibrations.