Results 11 to 20 of about 15,502,162 (342)

Dynamic Characteristic Analysis of the Multi-Stage Centrifugal Pump Rotor System with Uncertain Sliding Bearing Structural Parameters

open access: yesMachines, 2022
The traditional dynamic characteristic analysis of the multi-stage centrifugal pump rotor system is developed assuming the bearing structural parameters with constant values.
Lijun Lin   +5 more
semanticscholar   +1 more source

Dynamic characteristic analysis of spur gear system considering tooth contact state caused by shaft misalignment

open access: yesNonlinear dynamics, 2021
The effect of gear contact state change due to shaft misalignment on meshing stiffness is usually neglected in the traditional stiffness calculation model with misalignment error, the further influence mechanism of shaft misalignment on gear dynamic ...
Lantao Yang   +6 more
semanticscholar   +1 more source

Health status identification of modular-block-reinforced soil retaining walls after earthquakes

open access: yesYantu gongcheng xuebao, 2023
Distribution of dynamic characteristics (natural frequency and damping ratio) of large-scale shaking table model tests on a reinforced soil retaining wall (RSRW) under different working conditions is analyzed by using the time-domain identification ...
LI Sihan 1, 2, 3, CAI Xiaoguang 2, 3, 4, JING Liping 1, 5, CAI Boyuan 1, 3, HUANG Xin 1, 2, 3, XU Honglu 5
doaj   +1 more source

Modeling and Parameter Optimization of Dynamic Characteristic Variables of Ballast Bed during Operation for Dynamic Track Stabilizer

open access: yesComplex, 2021
,e high traffic density of railway line causes ballasted track to be extremely busy, and thus it is particularly important to improve the efficiency during railway maintenance.
Bo Yan, Jingjing Yang
semanticscholar   +1 more source

Development of the Reduced-Scale Vehicle Model for the Dynamic Characteristic Analysis of the Hyperloop

open access: yesEnergies, 2021
This study addresses the Hyperloop characterized by a capsule-type vehicle, superconducting electrodynamic suspension (SC-EDS) levitation, and driving in a near-vacuum tube.
Jinho Lee   +4 more
semanticscholar   +1 more source

Integration of Wavelet Denoising and HHT Applied to the Analysis of Bridge Dynamic Characteristics

open access: yesApplied Sciences, 2020
When the dynamic characteristics of a bridge structure are analyzed though Hilbert–Huang transform (HHT), the noise contained in the bridge dynamic monitoring data may seriously affect the performance of the first natural frequency identification. A time-
Xinpeng Wang   +4 more
doaj   +1 more source

Experimental Study of Dynamic Characteristics of Tailings With Different Reconsolidation Degrees After Liquefaction

open access: yesFrontiers in Earth Science, 2022
The construction period of most tailing ponds generally lasts for more than 10 years or even decades. During this period, it may be affected by more than one earthquake and is often subjected to vibrations generated by mining activities.
Wensong Wang   +8 more
doaj   +1 more source

Algorithms for analysis of stability and dynamic characteristics of signal generators at the physical level in FANET networks [PDF]

open access: yesMATEC Web of Conferences, 2020
To ensure the reliability of the physical level of Flying Ad Hoc Networks (FANET), the article substantiates the relevance of the study of stability and dynamic processes of signal formation and processing paths in the terminal and intermediate network ...
Vasilyev Gleb S.   +3 more
doaj   +1 more source

Dynamic normal forms and dynamic characteristic polynomial

open access: yesTheoretical Computer Science, 2008
We present the first fully dynamic algorithm for computing the characteristic polynomial of a matrix. In the generic symmetric case our algorithm supports rank-one updates in O(n^2 log n) randomized time and queries in constant time, whereas in the general case the algorithm works in O(n^2 k log n) randomized time, where k is the number of invariant ...
Frandsen, Gudmund Skovbjerg   +1 more
openaire   +2 more sources

Power Transmission Characteristics of the Magnetic Gear Reducer with a Variable Gear Ratio [PDF]

open access: yes한국정밀공학회지, 2019
The gear ratio variable topology of a magnetic gear with an integrated harmonic modulator is analyzed using a magnetic permeance model. A dynamic characteristic equation is derived in consideration of the gear ratio between each layer constituting the ...
Hoon Hee Won, Kwang Suk Jung
doaj   +1 more source

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