Results 91 to 100 of about 15,235 (310)
Effect of Wind Turbine Blade Rotation on Triggering Lightning: An Experimental Study
Energies, 2016 Compared with other lightning targets on the ground, the most notable feature of a wind turbine is that the blades are usually in a rotating state when lightning strikes.
Xishan Wen +6 more
doaj +1 more source
Analytical periodic motions in a parametrically excited, nonlinear rotating blade
, 2013 The stability and bifurcation analyses of periodic motions in a rotating blade subject to a torsional excitation are investigated. For high speed rotations, cubic geometric nonlinearity and gyroscopic effects of the rotating blade are considered.
F. Wang, A.C.J. Luo
core +1 more source
Advanced Materials Technologies, EarlyView.The study considers the use of polymer/dielectric‐based multilayers piezoelectric Energy Harvesters (EH) to produce an output voltage and current, by exploiting the mechanical energy provided by human organs movements. In particular, the heart motion is considered from the kinematic viewpoint, and a multiphysics theoretical model is developed to assess
Hamdi Ezzin +5 more
wiley +1 more source
Vibration analysis of a rotating blade using dynamic discretization
, 2020 Vibration analysis of a rotating blade using dynamic ...
Christopher J. Norwood (9546627)
core +1 more source
Advanced Optical Materials, EarlyView.Large Faraday rotation at room temperature is observed in thin films of discotic copper (Cu2+: 3d9) and vanadyl (VO2+: 3d1) enaminoketone complexes. The large Verdet constant originates from a high density of paramagnetic centers, metal‐ligand p−d hybridization and π orbitals involved in optical transitions (identified by DFT calculations), as well as ...
Karolina Łempicka‐Mirek +8 more
wiley +1 more source
Experimental Investigation: Vibration Measurement of a Rotating Blade with Digital Image Correlation and Blade Tip-Timing. [PDF]
Micromachines (Basel), 2022 Liang Z, Zhang Y, Yue L.
europepmc +1 more source
Turbulent flow on a planar moving belt and a rotating disk: modelling and comparisons
, 2007 Modelling of the fully turbulent flow produced on a moving belt and of that induced on a rotating disk is described, for each of which a more analytical approach is adopted than previously seen.
McDarby, JM, Smith, FT
core
Turbine cooling and heat transfer modelling for gas turbine performance simulation [PDF]
, 2015 The successful design of cooling systems for gas turbine engines is a key factor to feasibility of new projects, as the trend for increasing turbine entry temperatures implies requirements for more sophisticated cooling methods.
Apostolidis, Asteris
core
Collision‐Resilient Winged Drones Enabled by Tensegrity Structures
Advanced Robotics Research, EarlyView.Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui +5 more
wiley +1 more source
Simulating eddy current sensor outputs for blade tip timing
Advances in Mechanical Engineering, 2018 Blade tip timing is a contactless method used to monitor the vibration of blades in rotating machinery. Blade vibration and clearance are important diagnostic features for condition monitoring, including the detection of blade cracks.
Nidhal Jamia +3 more
doaj +1 more source