ABSTRACT

Vibration testing is usually performed by applying a vibratory excitation to a test object and monitoring

the structural integrity of the object and its performance of its intended function. The technique may be

useful in several stages: (1) design development, (2) production, and (3) utilization of a product. In the

initial design stage, the design weaknesses and possible improvements can be determined through

the vibration testing of a preliminary design prototype or a partial product. In the production stage, the

quality of the workmanship of the final product can be evaluated using both destructive and

nondestructive vibrating testing. A third application termed product qualification, is intended for

determining the adequacy of a product of good quality for a specific application (e.g., the seismic

qualification of a nuclear power plant) or a range of applications.