Abstract: We study first-crossing problem of two-degrees-of-freedom (2DOF) strongly nonlinear mechanical oscillators analytically. The excitation is the combination of a deterministic harmonic function and Gaussian white noises ...

Abstract: This paper proposes a flexible dry friction plate to mitigate the vibration of thin-walled structures for one resonance crossing. Based on a cantilever beam–friction damper finite element model, the geometry and material ...

Abstract: Aerosol samples were collected from the northwest China desert region (i.e., Minqin), a coastal suburb area (i.e., Qingdao), and an island from the Yellow Sea (i.e., Qianliyan), respectively, in spring and summer of 1995 ...