Abstract
The influence of nonlinear impact behavior of partial failure collision rolling bearing is studied when the pitfall occurs in the inner ring. The piecewise non-smooth experiment model of three-degree-of-freedom rolling bearing system with fault in inner ring is established, and the experiment method is used to further reveal the bifurcations and chaos of bearing system through establishing the Poincaré mapping on the collision plane. The nonlinear impact behaviors are studied with the vibration force increasing, when the vibration frequency is determined. The impact signal spectrum characteristics are analyzed through changing the quality of the mass M1 after adding a force sensor. The study of nonlinear impact behaviors of the fault bearing system provides reliable basis for the design and fault diagnosis and provides theoretical guidance and technical support for the actual design in the safe and stable operation of large high-speed rotating machinery.
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