Carrying Out of Strenght Tests of Geared Motor Box as Part of a Frequency-Controlled Traction Electric Drive

In according to the widespread use of an asynchronous electric drive in transport, research is currently being carried out aimed at improving the dynamic and static performance of the drive. In addition, more and more attention is paid to reducing the level of vibration and acoustic noise, due to the fact that the traction electric drive units to the end customer, such as a traction converter, a geared motor unit, a top-level control unit, are supplied from different manufacturers, which requires a separate preliminary check and testing of operating modes. No less relevant is the issue of increasing the level of vibration when the GMB is powered from a voltage inverter with PWM. The purpose of this work is to perform experimental studies of the vibroactivity of the GMB, powered by a two-level voltage inverter at the stage of acceptance tests.