Kazmierczak H., Cempel C., Pawlowski T., Kromulski J.

The mechanical system is modelled as an energy processor, which transforms the input power into effective power, destruction power of its elements and external dissipation power (noise). The elements of the mechanical object are subject to wear with different intensity. This is reflected in the dynamic characteristics of the object and the vibration load power characteristics causing the destruction of the machine. The paper presents the concept of an energy-based vibration identification method of the degradation of a reinforced concrete beam, subjected to static loads until failure. The method is used in testing the energy propagation and the structural changes in mechanical objects.