Results 51 to 60 of about 4,853 (302)
Computation of Aerodynamic Damping for Flutter Analysis of a Transonic Fan
, 2011 This paper describes the computational analysis of aerodynamic damping for prediction of flutter characteristics of a transonic fan stage that consists of a highly loaded rotor along with a tandem stator.
Parthasarathy Vasanthakumar +1 more
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Dual‐Mode Magnetic Elastomer for On‐Demand Motion and Degradation
Advanced Functional Materials, EarlyView.A dual‐mode magnetic elastomer is introduced, enabling DC field‐driven programmable actuation and AC field‐driven magnetothermal degradation. GHz‐range magnetic fields generate ultrafast heating of magnetic nanoparticles that activates cleavage of the silicone elastomer matrix.
Jieun Han +13 more
wiley +1 more source
Changes in the Damping Ratio and Energy Transfer Ratio Due to Damage in a Composite Beam
Engineering TransactionsThis paper investigates changes in the modal parameters of a composite beam resulting from damage introduced to the bottom flange of a steel I-beam. Variations in the modal damping ratio and energy transfer ratio (ETR) are analysed.
Małgorzata Jarosińska
doaj +1 more source
Advances in Materials Science and Engineering, 2015 Composite materials are increasingly used in wind blade because of their superior mechanical properties such as high strength-to-weight and stiffness-to-weight ratio.
Tai-Hong Cheng +3 more
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Modal Parameter Tracking in a Carbon Fiber-Reinforced Structure over Different Carbon Fiber Angles
Journal of Marine Science and Engineering, 2021 The dynamics of carbon fiber-reinforced plastic (CFRP) change according to the carbon fiber angle, and a mode order shift may occur in CFRP specimens. The variation trends in modal parameters differ in each mode; thus, an efficient mode-tracking method ...
Chan-Jung Kim
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Advanced Functional Materials, EarlyView.Field‐free spin‐orbit torque domain‐wall synapses integrated with stochastic MTJ neurons enable compact hardware Boltzmann machines. Leveraging intrinsic stochasticity and multi‐level conductance, the system achieves efficient probabilistic learning with high accuracy, demonstrating a scalable spintronic platform for energy‐efficient edge AI.
Aijaz H. Lone +8 more
wiley +1 more source
Applied Sciences, 2023 An automated operational modal analysis (AOMA) method that considers the uncertainty in modal parameters is presented and data acquired from actual bridges are used to validate it.
Keunhee Cho, Jeong-Rae Cho
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Damping System Designs using Nonlinear Frequency Analysis Approach [PDF]
, 2012 The main purpose of this thesis focuses on the investigation of the frequency domain analysis and design approaches for nonlinear damping systems. With the development of modern mechanical and civil engineering structures, the vibration control has ...
Guo, Pengfei
core
Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers
Advanced Functional Materials, EarlyView.We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar +6 more
wiley +1 more source
Dynamic Modification and Damage Propagation of a Two-Storey Full-Scale Masonry Building
Advances in Civil Engineering, 2019 The progressive change of modal characteristics due to accumulated damage on an unreinforced masonry (URM) building is investigated. The stone URM building, submitted to five consecutive shakings, has been experimentally studied on the shaking table of ...
Leonidas Alexandros S. Kouris +2 more
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