Abstract Hysteresis widely exists in civil structures, and dissipates the mechanical energy of systems. Research on random vibration hysteretic systems, however, is still insufficient, particularly when excitation non-Gaussian. In this paper, radial basis function (RBF) neural network (RBF-NN) method adopted as a numerical to investigate Bouc-Wen system under Poisson white noise excitations. Th...

In regions prone to seismic activity, buildings constructed on soft soil pose a significant concern due their inferior performance. This situation often results in considerable structural damage, substantial economic loss, and increased risk human life. To address this problem, study focuses the retrofitting of steel moment-resisting frames using friction metal-yielding dampers, taking into acc...

The tendon sheath mechanism plays an important role in many robotic systems from surgical devices to robot hands. However, many unexpected properties such as nonlinear hysteresis and backlash, which appear in the tendon sheath system, cause major losses in force transmission. This report deals with the characterization of hysteresis phenomenon, which is attributed to the presence of frictional ...

This article presents numerical studies on semi-active seismic response control of structures equipped with Magneto-Rheological (MR) dampers. A multi-layer artificial neural network (ANN) was employed to mitigate the influence of time delay, This ANN was trained using data from the El-Centro earthquake. The inputs of ANN are the seismic responses of the structure in the current step, and the ou...

References: [1] Wen Shen, On the Shape of Avalanches, J. Math. Anal. Appl., 339(2008), 828-838. [2] Debora Amadori and Wen Shen, Global Existence of large BV solutions for a Model of Granular Flow, To appear in Communications in Partial Differential Equations. [3] Debora Amadori and Wen Shen, The Slow Erosion Limit for a Model of Granular Flow, preprint 2008. Available online: www.math.psu.edu/...

Ghrelin, a brain-gut peptide that induces anxiety and other abnormal emotions, contributes to the effects of insomnia on emotional behavior. In contrast, the traditional Chinese Medicine remedy Wen Dan Tang reduces insomnia-related anxiety, which may perhaps correspond to changes in the brain-gut axis. This suggests a possible relationship between Wen Dan Tang's pharmacological mechanism and th...

Periodic metafoundations have proven to inherit valuable properties from wave propagating in phononic periodic structures the very low-frequency regime. Therefore, finite locally resonant (LRMs) represent a novel type of seismic isolation for ultralow-frequency applications. In this context, it is still unknown impact that massive resonators with varying frequencies or devices hysteretic behavi...