Abstract
The dynamic response of a complex one-dimensional system with clearances is considered. It is shown that the presence of the clearances results in a substantial amplification of the internal dynamic forces of the system. This behavior is compared with the characteristics of a simple general model of the clearance coupling called an impact pair. It is shown that the impact pair is capable of predicting the effects of clearances on the dynamics of one-dimensional systems and represents a valuable design tool.

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