Results 131 to 140 of about 11,806 (306)
Noise of elastic vibrations of the helicopter blade under an aerodynamic load
Авіаційно-космічна техніка та технологіяThis study develops a theoretical model of vibration-induced noise generation in helicopter blade elastic vibrations. Vibration and aerodynamic noises are generated during helicopter rotor rotation.
Petro Lukianov, Sergii Karmazin
doaj +1 more source
Effect of rotor stiffness and lift offset on the aeroacoustics of a coaxial rotor in level flight
, 2009 The acoustic characteristics of a twin contra-rotating coaxial rotor configuration with significant flapwise stiffness are investigated in steady forward flight.
Brown, R.E. +5 more
core
Sputtering Mechanism of an Unsintered Organic–Inorganic Sputtering Target for Perovskite Solar Cells
Advanced Energy Materials, EarlyView.An unsintered MAPbI3 sputtering target fabricated via a mechanochemical route enables large‐area vacuum deposition of perovskite absorber layers, while revealing an ion–photon coupled decomposition mechanism that governs target erosion and film composition under RF plasma exposure.
Doha Lim +9 more
wiley +1 more source
The use of pseudo-inertia in asymptotic modelling of constraints in boundary value problems
, 2009 In recent publications, the validity of using positive and negative inertial penalty parameters and the advantage of this approach over the conventional positive penalty function approach have been established for linear eigenvalue problems.
Ilanko, Sinniah, Henderson, L.
core +1 more source
Cycling Performance of Sodium‐Metal Chloride Battery Cells and Modules Based on Iron and Zinc
Advanced Energy Materials, EarlyView.High‐utilization sodium–metal chloride cells with a mixed‐metal Fe, Zn, NaCl cathode enable efficient high‐temperature cycling (300°C) while reducing cost and environmental impact. Near‐theoretical capacity and high efficiency are achieved in single cells.
William Nash +10 more
wiley +1 more source
Advanced Intelligent Discovery, EarlyView.Flexible tactile sensors have considerable potential for broad application in healthcare monitoring, human–machine interfaces, and bioinspired robotics. This review explores recent progress in device design, performance optimization, and intelligent applications. It highlights how AI algorithms enhance environmental adaptability and perception accuracy
Siyuan Wang +3 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract The complex evolutionary history behind modern mammalian chewing performance and hearing function is a result of several changes in the entire skeletomuscular system of the skull and lower jaw. Lately, exciting multifunctional 3D analytical methods and kinematic simulations of feeding functions in both modern and fossil mammals and their ...
Julia A. Schultz
wiley +1 more source
Diagnosis of Impeller Faults in a Centrifugal Pump Using Vibration Signals
Centrifugal pumps are widely used in many critical applications. To ensure the safety and high performance of pump operations vibration techniques are generally used for condition monitoring.
Al-Braik, Abdulrahman +3 more
core
Validating Blade Vibration Amplitudes from Blade Tip-Timing Data Analysis
, 2004 peer reviewedBlade Tip-Timing (BTT) is a method for the measurement of blade vibration in rotating bladed assemblies such as those found in turbomachinery.
Gallego-Garrido, Jon +1 more
core
Deflection and Vibration Analysis of a Flex Fan Blade Using the Finite Element Technique. [PDF]
, 1972 A flex-fan has flexible blades which undergo large deformation under centrifugal forces to give the desired air-flow and power-consumption characteristics with speed.
Gossain, Devendra M.
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