Test Bench with Controlled Impact Action for Analyzing Rotor-Bearing Assemblies

The article outlines the background and the process of creating a test bench for analyzing external impact actions applied to the rotor-bearing assemblies during their operation. Control systems for the test bench and the impact device are presented. The latter designed on the basis of a hydraulic cylinder with a hydraulic directional valve. The impact device can operate either in manual or programmable modes. Precise variation in velocity and magnitude of the impact (according to a predetermined law of variation) allows us to cover a wide range of possible external impacts applied to the rotor assembly. Automatic control of the test bench modules as well as the collection and processing of the experimental data is accomplished by a computer program developed in the LabView visual programming environment. The drivers for matching the frequency converter and the controller as well as all the software for the data measuring system operation, including the experiment itself and data processing was written in graphic programming language “G”.