ABSTRACT
The problem in bringing the real environment into the simulation or experimental tailored testing is to have a representative description of the loading which act on the component. The loading can be, for example, force, acceleration, displacement or strain. When we consider the lifetime estimation or the durability of components, these loadings are always dynamic. During operation the components are exposed to loadings which are secondary, and loadings which have strong importance on the lifetime. To reduce the test time or generating accelerating testing, the tailored loading spectrum must contain the most important loading data from the lifetime point of view. Generally mechanical dynamic loading consists of cyclic, random and shock loadings. These loadings can exist in translation or rotation motion. These excite forced the vibration and resonance vibration modes of the design which finally generate dynamic stresses in the component.
