Test rig for characterization of a rotor vibration under impact loadings

摘要

A vibration testing apparatus for analyzing characteristics of a rotary system to which an impact load is applied is disclosed. According to an embodiment of the present invention, there is provided a driving apparatus including: a driving unit that generates rotational force; A rotor connected to the driving unit and configured to have a plurality of contact protrusions arranged at regular intervals in a circumferential direction; An impact hammer formed to be close to the outer circumferential surface of the rotor and configured to collide with a plurality of contact protrusions; A speed sensor for sensing the rotational speed of the rotor; And a displacement sensor for measuring a displacement occurring when the impact hammer collides with the impact hammer.Accordingly, the apparatus of the present invention has an effect of experimentally analyzing the influence of the cyclic impact load on the lateral vibration characteristics of the rotating system.Also, there is an effect that can be utilized for verifying the result of the theoretical analysis.