«BISON» FRICTIONAL SIMULATORS AND STRENGTH TRAINING IN JOINT LIMITS

The purpose of the work was to improve friction simulators with many degrees of freedom, aimed at creating devices that use a frictional way to create a training load, but have minimal amplitude limits when performing training exercises. Methodology. In the process of solving the problem, computer and physical modelling techniques, construction and control tests were used. Scientific novelty. During the study, a new frictional simulator with many degrees of freedom was developed. At the same time, the device for the first time used dual spherical hinges, which allowed increasing the number of loaded degrees of freedom from twelve to eighteen. The overall effect of the innovative design solution is to remove the constructive restrictions on the amplitude of training exercises, which, in turn, has allowed ensuring an effective load for the extended amplitude of complex spatial movements in the joints, including limits and close to the limit. In addition, the scientific novelty is presented in the design solution related to the adjustment of the load in the twin hinges. Thus, the original technical solution allowed ensuring the use of only two adjustments, each of which ensures the installation of load on the appropriate paired hinge. Conclusions. A new device from the family of friction simulators with many degrees of freedom, distinguished by a significant increase in the spatial amplitude of training exercises, has been proposed. This is achieved using an innovative design in which each hinge is paired, as the result of that the device having actually a four hinges. An important aspect of the proposed device is the ability to set a training load, performing only two adjustments when automatically fixing its value