Results 81 to 90 of about 124,655 (304)
An efficient numerical procedure for calculating periodic vibrations of elastic mechanisms
Vietnam Journal of Mechanics, 2016 This paper proposes a numerical procedure based on the well-known Newmark integration method to determine initial conditions for the periodic solution of a system of linear differential equations with time-periodic coefficients.
Nguyen Van Khang +2 more
doaj +1 more source
Advanced Functional Materials, EarlyView.The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal +10 more
wiley +1 more source
Control of Rotor-Blade Coupled Vibrations Using Shaft-Based Actuation
Shock and Vibration, 2006 When implementing active control into bladed rotating machines aiming at reducing blade vibrations, it can be shown that blade as well as rotor vibrations can in fact be controlled by the use of only shaft-based actuation.
René Hardam Christensen +1 more
doaj +1 more source
Fast Computation of Steady-State Response for Nonlinear Vibrations of High-Degree-of-Freedom Systems
, 2018 We discuss an integral equation approach that enables fast computation of the response of nonlinear multi-degree-of-freedom mechanical systems under periodic and quasi-periodic external excitation.
Breunung, Thomas +2 more
core +1 more source
Nonequilibrium identities of granular vibrating beds [PDF]
, 2013 We derive the integral fluctuation theorem around a nonequilibrium stationary state for frictionless and soft core granular particles under an external vibration achieved by a balance between an external vibration and inelastic collisions.
Hayakawa, Hisao
core +2 more sources
Advanced Functional Materials, EarlyView.This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger +11 more
wiley +1 more source
Flow-Induced Vibrations of a Square Cylinder in the Combined Steady and Oscillatory Flow
Journal of Marine Science and EngineeringThe paper presents a two-dimensional RANS–SST k–ω investigation of vortex-induced vibration of a square cylinder with two degrees of freedom under combined steady and oscillatory flow at the Reynolds number of 5000, Keulegan–Carpenter number of 10, mass ...
Henry Francis Annapeh +1 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Metal‐tetracene dimeric complexes are synthesized through the pyridyl coordination to either Pt(II) or Pd(II). Photophysical properties are systematically compared as a function of the metal using steady‐state and time‐resolved spectroscopy. The Pt(II) dimer exhibits efficient intramolecular singlet fission and subsequent intramolecular up‐conversion ...
Yifan Bo +4 more
wiley +1 more source
Active Control of a Small-Scale Wind Turbine Blade Containing Magnetorheological Fluid
Micromachines, 2018 This research study proposes a new active control structure to suppress vibrations of a small-scale wind turbine blade filled with magnetorheological (MR) fluid and actuated by an electromagnet.
Fevzi Cakmak Bolat, Selim Sivrioglu
doaj +1 more source
Advanced Functional Materials, EarlyView.This study uncovers a new switching mechanism in HfO2 and ZrO2, where the absence of a non‐polar layer along the a‐direction induces interaction between polar layers. Consequently, the switching barriers for growth are lower than those for nucleation in this direction, leading to a size‐dependent coercive field that matches experimental observations ...
Kun Hee Ye +6 more
wiley +1 more source