ISO/TC 108/SC 6/WG 3 - Guidance for selection of vibration generators

This document establishes requirements to ensure appropriate exchange of information between manufacturers and users of auxiliary tables with a view to working out related specifications and possibly to comparing, in an objective way, the characteristics supplied by the manufacturers of auxiliary tables and associated guidance systems. This document is applicable to auxiliary tables which include slip tables and head expanders. It does not cover auxiliary tables with several degrees of freedom. This document provides three levels of description of the test equipment, as follows: a) minimum level; b) medium level; c) high level. This document gives a list of characteristics to be specified for each level of description.

This document provides guidance to select a vibration generator that will be used to evaluate frequency responses of a test structure or to study how vibration grows/decreases along the structure. These structural dynamics tests can be carried out under field or laboratory conditions (see the ISO 7626 or ISO 10846[4][5][6][7] series). This document describes the selection procedure in terms of the force developed by a single vibration generator. Meanwhile, to move massive structures such as dams or bridges, an assembly of vibration generators is usually applied. Properly phased generators produce in total the same force as calculated for a single vibration generator (see 6.2.6). Guidance also can be applied for the selection of equipment to be used for modal testing to determine natural frequencies, modal shapes and damping in a structure; however, for such a test, more factors than covered by this document usually need to be considered. This document deals only with translational excitation. For equipment applied to generate angular vibration, see Reference [8].

ISO 10813-1:2004 gives guidance for the selection of vibration generating equipment used for vibration environmental testing, depending on the test requirements. This guidance covers such aspects of selection as the equipment type, the model, and some main components, excluding the control system.