Results 41 to 50 of about 36,766 (308)
Buildings, 2022 In order to study the relationship between an aerostatic three-component coefficient (ATCC) and bridge flutter and to quickly evaluate the flutter performance of bridges, we proposed a method based on the empirical formula of the ATCC.
Hui Gao +4 more
doaj +1 more source
Experimental and numerical investigation of aerodynamic damping
, 2023 This thesis introduces a new aeromechanical test facility for axial compressor rotors called ACTIVE (Axial Compressor Test rig for the Investigation of blisk Vibrations with an active Excitation system). Thanks to the closed loop design, the test facility can be operated at variable pressure levels as well as at vacuum without changing the test setup ...
openaire +2 more sources
Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study
Advanced Engineering Materials, EarlyView.This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud +7 more
wiley +1 more source
Optimal mistuning for enhanced aeroelastic stability of transonic fans [PDF]
, 1983 An inverse design procedure was developed for the design of a mistuned rotor. The design requirements are that the stability margin of the eigenvalues of the aeroelastic system be greater than or equal to some minimum stability margin, and that the mass ...
Crawley, E. F., Hall, K. C.
core +1 more source
Non-linear autopilot design using the philosophy of variable transient response [PDF]
, 2009 The novel non-linear controller design methodology of Variable Transient Response (VTR) is presented in this research. The performance of VTR is compared to that of successful non-linear controller designs (such as Robust Inverse Dynamics Estimation and ...
Brindley, Joseph +2 more
core +1 more source
Advanced Engineering Materials, EarlyView.The results demonstrate a simulation‐driven workflow that applies LSB topology optimization with additive manufacturing constraints to mission‐specific load cases, integrating European Cooperation for Space Standardization compliant verification and manufacturability to develop structurally efficient rover suspension components.
Stelios K. Georgantzinos +11 more
wiley +1 more source
Micromachines, 2020 Temperature rise and elastic deformation are unavoidable issues occurring in high-speed gas microbearings due to the dominant small-scale fluid dynamics in rarefied gas flow applications.
Yao Wu, Lihua Yang, Tengfei Xu, Wei Wu
doaj +1 more source
Time-domain harmonic balance method for aerodynamic and aeroelastic simulations of turbomachinery flows [PDF]
, 2013 A time-domain Harmonic Balance method is applied to simulate the blade row interactions and vibrations of state- of-the-art industrial turbomachinery configurations. The present harmonic balance approach is a time-integration scheme that turns a periodic
Besicovitch A.S. +5 more
core +1 more source
Advanced Functional Materials, EarlyView.By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu +5 more
wiley +1 more source
Research on the Coupled Bending–Torsional Flutter Mechanism for Ideal Plate
Applied SciencesIn order to explore the inducing mechanism of negative damping of bending–torsional coupling flutter, an ideal plate with a width of 0.45 m was taken as the research object.
Guang Hong +3 more
doaj +1 more source