Results 21 to 30 of about 861,541 (263)

UNIVERSAL SOFTWARE SYSTEM “STADYO” FOR THE NUMERICAL SOLUTION OF LINEAR AND NONLINEAR PROBLEMS OF THE FIELD THEORY, STATICS, STABILITY AND DYNAMICS OF SPATIAL COMBINED SYSTEMS: GENERAL PARAMETERS AND SUPERELEMENTAL FEATURES

open access: yesInternational Journal for Computational Civil and Structural Engineering, 2018
The distinctive paper presents the general papers of the science-based universal software system “STADYO” intended for the numerical solution of stationary and nonstationary problems of field theory, analy-sis of static, temperature and dynamic stress ...
Alexander M. Belostotsky   +2 more
doaj   +1 more source

Copper-Catalyzed Dual Cyclization for the Synthesis of Quinindolines

open access: yesMolecules, 2020
A synthetic approach to quinindoline derivatives by the Cu-catalyzed dual cyclization has been developed. This catalytic reaction is a practical method for the systematic synthesis of quinindoline core structure, which contains a limited-step synthetic ...
Hung-Kai Wang   +5 more
doaj   +1 more source

Stabilized Solution to Spurious Mode Problem and Ill-Conditioning in Interface Force Based Substructure Coupling Method

open access: yesShock and Vibration, 2018
There are two major types of substructure mode synthesis methods, i.e., the fixed-interface component mode synthesis and free-interface component mode synthesis.
Hui-hua Feng   +2 more
doaj   +1 more source

Tabu Genetic Cat Swarm Algorithm Analysis of Optimization Arrangement on Mistuned Blades Based on CUDA

open access: yesShock and Vibration, 2021
Tabu genetic cat swarm optimization algorithm is proposed for optimization arrangement on mistuned blades. Furthermore, it is improved to be an innovative parallel algorithm based on Compute Unified Device Architecture (CUDA), whose performance is ...
Yi Cai   +4 more
doaj   +1 more source

A Combination of Modal Synthesis and Subspace Iteration for an Efficient Algorithm for Modal Analysis within a FE-Code

open access: yesShock and Vibration, 2003
Various well-known modal synthesis methods exist in the literature, which are all based upon certain assumptions for the relation of generalised modal co-ordinates with internal modal co-ordinates.
M.W. Zehn
doaj   +1 more source

Reduction of Coupling Interface Degrees of Freedom in Mixed-Interface Component Mode Synthesis

open access: yesApplied Sciences, 2020
A new coupling interface degrees of freedom (DOFs) reduction technique for the mixed-interface component mode synthesis (MCMS) method is proposed, which referred to as the MCMS-rid method.
Yu Tang, Hui Qin
doaj   +1 more source

Study on the Vibration Characteristics of Yaw Gear System for Large-Capacity Offshore Wind Turbine

open access: yes한국해양공학회지, 2023
Vibration and noise must be considered to maximize the efficiency of a yaw system and reduce the fatigue load acting on a wind turbine. This study investigated a method for analyzing yaw-system vibration based on the change in the load-duration ...
HyoungWoo Lee   +2 more
doaj   +1 more source

Vibration Analysis of the Helical Gear System Using the Integrated Excitation Model

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
The vibration of the helical gear system is generated by three kinds of excitation. The first cause is a displacement excitation due to the tooth surface error.
Takayuki NISHINO
doaj   +1 more source

Vibration analysis by substructure synthesis method (5th report, A method with identified characteristic matrices)

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1985
In this paper, a new substructure synthesis method is proposed. S total structure is divided into some components (substructures). The characteristic matrices (the mass, the damping and the stiffness matrices) of reduced degrees of freedom are identified for each component theoretically or by vibration tests.
OOKUMA, Masaaki, NAGAMATSU, Akio
openaire   +3 more sources

Study on damping characteristics of steam turbine hollow vane with damper

open access: yesNihon Kikai Gakkai ronbunshu, 2014
A vane used in a low pressure end of steam turbine is usually fixed to a shroud and a casing by welding both ends. In such a vane structure, the damping in loading operation is comprised of the material damping and the aerodynamic damping, because the ...
Yasutomo KANEKO   +3 more
doaj   +1 more source

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