Transfer Function Development of Uniaxial Horizontal Centrifugal Shaking Table

Soil as a special material featured with nonlinear stress-strain relationship plays a critical role in determining the magnitude of hazards in an earthquake. For a unique capability of simulating a combined environment of high gravity and shake loading, centrifugal shaking table provides an effective and advanced testing method to dynamic characteristics and failure mechanism of reduced scale soil models. From construction both at home and abroad, shaking tables often suffer waveform distortion and instability after installed on a centrifuge. The knowledge of this phenomenon is a dearth while relative theory is absolutely blank. Practically the construction of centrifugal shaking tables is still in an exploratory stage. This paper develops a transfer function of geotechnical shaking table with soil model and bucket to offer fundamental cognition of inherent mechanism, and establishes a theoretical procedure to evaluate the influence of bucket on shaking table.