Flow-induced periodic snap-through dynamics
WebMar 3, 2024 · The stability and post-critical behaviour of periodic snapping are investigated experimentally for a buckled elastic sheet with two clamped ends under an external … WebOct 14, 2013 · We consider the dynamic snapping instability of elastic beams and shells. Using the Kirchhoff rod and Föppl-von Kármán plate equations, we study the stability, …
Flow-induced periodic snap-through dynamics
Did you know?
WebFlow-induced periodic snap-through dynamics Hyeonseong Kim et al-Delayed bifurcation in elastic snap-through instabilities Mingchao Liu et al-This content was … WebInstead, we ran united atom molecular dynamics simulations of bimodal polyethylene blends, comprising linear chains at a 50 : 50 mix of long (1000 carbon) and short …
http://fluid.kaist.ac.kr/?page_id=153 WebExperiments combining mechanical rheometry with polarimetry (birefringence and scattering dichroism) have been conducted on a 6% solution of polystyrene (1.86x106 molecular weight) in dioctyl phthalate. Birefringence is used to measure the extent of segmental orientation, whereas the dichroism is sensitive to orientation and deformation of …
WebJul 8, 2024 · Lid-driven cavity flow-induced dynamics of a neutrally buoyant solid: Effect of Reynolds number, flexibility, and size; Physics of Fluids 34, 073310 ... The solid undergoes a transient spiraling motion before attaining a periodic orbit-based limit cycle. The flow also attains the periodic state after the initial transients. WebDec 1, 2024 · Herein, a flow-induced vibration effect based TENG (F-TENG) for continuously capturing and monitoring multidirectional breeze (1.8–4.3 m s⁻¹) is …
WebFlow-induced periodic snap-through dynamics. Kim, Daegyoum. The stability and post-critical behaviour of periodic snapping are investigated experimentally for a buckled elastic sheet with two clamped ends under an external uniform flow. In addition to experimental investigations, low-order numerical simulations are conducted with the elastica ...
WebContinuous exposure to fluid-dynamic loading induces snap-through oscillations from an initial equilibrium state. While the critical flow velocity for bifurcation is inversely related to the ratio of the streamwise distance of the sheet to its length, it is not significantly … china\u0027s best buffetWebHowever, irregular and random motions in the fluid-structure coupled dynamics greatly deteriorate the consistency and efficiency of the output power performance. Here, we report a novel mechanism of a periodic snap-through triboelectric energy harvester based on the bi-stable property of structural buckling and integrated dielectric-electrode ... china\\u0027s best buffetWebAbstract. The stability and post-critical behaviour of periodic snapping are investigated experimentally for a buckled elastic sheet with two clamped ends under an external … china\u0027s belt \u0026 road initiativeWebJul 8, 2024 · Lid-driven cavity flow-induced dynamics of a neutrally buoyant solid: Effect of Reynolds number, flexibility, and size; Physics of Fluids 34, 073310 ... The solid … china\u0027s best brownsburg indianaWebOct 17, 2013 · At intermediate input amplitudes, the snap through mass oscillates in a multiharmonic (figures 9(c) and (d)) or aperiodic (figures 9(e) and (f)) fashion between the two equilibrium positions. When the input amplitude is relatively large, the snap through mass has high and periodic orbits about the two stable equilibrium positions. china\\u0027s best brownsburgWebOct 13, 2024 · The product of more than 40 years of research and development at the Canadian Nuclear Laboratories, this authoritative reference covers all relevant aspects of flow-induced vibration technology, including vibration failures, flow velocity analysis, vibration excitation mechanisms, fluidelastic instability, periodic wake shedding, acoustic ... granary kitchenWebAug 25, 1997 · The flow induced by periodic vortex rings wrapped around a columnar vortex core - Volume 345. ... (1989) model for the columnar vortex dynamics and by numerical solution of the axisymmetric Navier–Stokes and Euler equations in the vorticity–velocity formulation using a viscous vorticity collocation method, are used to … granary just eat