Study on Interaction of Shaker Table and Test Specimen for Different Mass Ratios and Assessment of Hydraulic Power Requirements for the Different Load Cases - Final Report.

Abstract

A series of dynamic tests was performed on two hydraulic multi-axis vibration test facilities of different size, using dummy-type test specimens of different mass and structural complexity. The tests were aimed at providing experimental data for an investigation of several aspects concerning the lay-out of such facilities as well as the development of related test methods. The study objectives included an investigation of the influence of the shaker table/specimen mass ratio on the quality of test results, an evaluation of multi-axis transient testing versus sequential single-axis testing and a demonstration of different system identification methods, applied to the obtained base driven test results. In addition, a parameter investigation on the power requirements of multi-axis test facilities was performed for typical test conditions. This report gives a description of the accomplished work and summarizes the major results.