Results 71 to 80 of about 73,894 (273)

Experimental investigation of mistuned bladed disks system vibration

, 2007
Bladed disks are critical structural components in jet engines and other turbomachinery. The nominal design for a bladed disk is typically assumed to have identical blades. However, there are always small, random variations in the blade properties due to
Li, Jia
core   +4 more sources

Bio‐Inspired Gradient Coatings Enhance the Leading Edge Erosion Resistance of Wind Blades

Advanced Science, EarlyView.
Rain‐induced erosion of the wind turbine blade leading edge poses a critical challenge to maintenance and operation. Here, we propose a bio‐inspired approach for erosion protection utilising a platelet‐reinforced polyurethane coating with a graded through‐thickness architecture.
Natalia Sofia Guevara‐Sotelo, Julie Teuwen, Kunal Masania   +2 more
wiley   +1 more source

Turbine engines bladed disks’ with circular damping links forced vibration [PDF]

, 2013
Викладено методику досліджень вимушених коливань вінців робочих лопаток турбомашин з коловими демпферними зв’язками. З використанням методу кінцевих елементів розроблено удосконалену математичну модель секції «сектор диску - лопатка з демпферними зв ...
Моргун, С. А., Каиров, А. С., Kairov, A., Morgun, S.   +3 more
core   +1 more source

Stabilizing Zinc Anodes via a Zeolite‐Induced Localized Supersaturated Electrolyte Interface

Angewandte Chemie, EarlyView.
A low‐Si/Al‐ratio ZSM‐5 (LZ5) interphase induces a localized supersaturated electrolyte interface on Zn, with a local Zn2+ concentration exceeding 10 M in a 1 M ZnSO4 bulk electrolyte. Continuous Zn2+ enrichment within the zeolite nanochannels creates an H2O‐deficient, anion‐enriched solvation environment, promoting rapid desolvation, uniform ...
Xiaoqi Liu, Yipu Xu, Linjiao Wei, Hongman Sun, Zhengxing Qin, Xizhi Zhang, Dahai Zhang, Xianguo Li, Han Hu, Wei Xing, Yu Zhang, Bin Luo, Zifeng Yan   +12 more
wiley   +2 more sources

Investigation of vibration characteristics for bladed-disks with dry friction nonlinearity

MATEC Web of Conferences, 2018
This paper focuses on the vibration characteristics of the bladed-disk subjected to the dry friction damping under periodic excitation. Firstly, the multi-harmonic equation basing on the frequency-domain analysis is established to predicate the steady ...
Liu Tianyuan, Xie Yonghui, Zhang Di
doaj   +1 more source

Ultrafast Chemical Pre‐Sodiation of Pseudocapacitive CaV8O20 Anodes for High‐Performance Sodium‐Ion Capacitors

Advanced Science, EarlyView.
An ultrafast (2‐minute), gas‐free chemical pre‐sodiation strategy using Na‐benzophenone is developed to compensate for initial sodium loss in calcium vanadate (CaV8O20). Driven by the Ca2+ ‘spectator effect’, the framework enables highly reversible, quasi‐zero‐strain solid‐solution sodium storage, explicitly bypassing destructive conversion reactions ...
Neetu Bansal, Anwar Hussain, Radhey Shyam Yadav, Prakash Kumar Pathak, Minjoong Kim, Tobias Mattisson, Heejoon Ahn, Rahul R. Salunkhe   +7 more
wiley   +1 more source

A Bioinspired, Multimodal Soft Tactile Skin with Task‐Adaptive Perception for Intelligent Robotic Manipulation

Advanced Science, EarlyView.
Perception in robotic manipulation improves through the cooperative and complementary operation of biologically inspired multimodal tactile sensors. Receptor‐specific contribution analysis identifies which sensing modalities are required for specific tactile tasks.
Yu‐Jin Lee, Hyeonung Kang, Ju Yeon Woo, Daekyum Kim, Chang‐Soo Han   +4 more
wiley   +1 more source

Nonlinear Vibrations of Low Pressure Turbine Bladed Disks: Tests and Simulations

Applied Sciences
One of the most effective methods to limit the mechanical vibrations of bladed disks is the use of friction damping at mechanical joint interfaces. Unfortunately, dedicated tests to assess the impact of mistuning and the effectiveness of friction dampers
Umidjon Usmanov, Giuseppe Battiato, Christian Maria Firrone, Marta Conte, Emanuele Rosso, Antonio Giuseppe D’Ettole   +5 more
doaj   +1 more source

Analysis of Forced Response for Bladed Disks Mistuned by Material Anisotropy Orientation Scatters

, 2017
A new method is developed for the forced response analysis of mistuned bladed disks manufactured from anisotropic materials and mistuned by different orientations of material anisotropy axes.
Chaoping Zang, E. P. Petrov, Yuanqiu Tan
core   +1 more source

Safety of Sodium‐Ion Batteries: Evaluation and Perspective from Component Materials to Cells, Modules, and Packs

Advanced Energy Materials, EarlyView.
This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim, Seoa Kim, Erik A. Wu, Darren H. S. Tan, Shawn Peng, Xiaolin Li   +5 more
wiley   +1 more source