Results 21 to 30 of about 18,357 (296)

Usage of modal synthesis method with condensation in rotor dynamics

open access: yes, 2008
The paper deals with mathematical modelling of vibration and modal analysis of rotors composed of a flexible shaft and several flexible disks. The shaft is modelled as a one dimensional continuum whereon flexible disks modelled as a three dimensional continuum are rigid mounted to shaft.
Zeman, Vladimír, Šašek, Jakub
openaire   +2 more sources

The Nonlinear Dynamic Characteristics of an Industrial Turbine Engine with Eccentric Squeeze Film Dampers

open access: yesApplied Sciences, 2023
Squeeze film dampers are often used to suppress vibration in turbine engines and play an important role in rotor systems. In this paper, the nonlinear dynamic characteristics of an industrial turbine engine fitted with squeeze film dampers are ...
Shan Zeng   +5 more
doaj   +1 more source

Turbine wheel reduced modal model for self-excited vibration suppression by inter-blade dry-friction damping [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2023
A new approach to calculations based on the modal synthesis method is proposed for the evaluation of structural and dry-friction damping effects on self-excited vibrations due to aeroelastic instability in bladed turbine wheels.
Luděk Pešek   +2 more
doaj   +1 more source

Modal Analysis and Structure Optimization of Permanent Magnet Synchronous Motor

open access: yesIEEE Access, 2020
Permanent magnet synchronous motors are the core components of electric vehicles and widely used in the field of electric vehicles. The existence of vibration will reduce the operating efficiency and service life of the motor, which is the key factor to ...
Jian Zhao   +6 more
doaj   +1 more source

MMNeRF: Multi-Modal and Multi-View Optimized Cross-Scene Neural Radiance Fields

open access: yesIEEE Access, 2023
We present MMNeRF, a simple yet powerful learning framework for highly photo-realistic novel view synthesis by learning Multi-modal and Multi-view features to guide neural radiance fields to a generic model.
Qi Zhang   +3 more
doaj   +1 more source

The modal sensitivity, robustness and roughness of dynamic systems (review article) [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2021
The review focuses on the development of theories of sensitivity and modal sensitivity, robustness and roughness of dynamic systems. In modern theory of dynamic systems and automatic control systems, there is a need to study the properties of sensitivity,
Roman O. Omorov
doaj   +1 more source

Cross Modal Facial Image Synthesis Using a Collaborative Bidirectional Style Transfer Network

open access: yesIEEE Access, 2022
In this paper, we present a novel collaborative bidirectional style transfer network based on generative adversarial network (GAN) for cross modal facial image synthesis, possibly with large modality gap.
Nizam Ud Din   +4 more
doaj   +1 more source

Algorithms for synthesis of control systems for dynamic objects based on the modal method [PDF]

open access: yesE3S Web of Conferences, 2023
Algorithms for the synthesis of control systems for dynamic objects based on the modal method are given. Algorithms have been developed for determining the placement of poles in multidimensional systems with proportional-differential feedback on the ...
Sevinov Jasur, Boeva Oqila
doaj   +1 more source

Substructure elimination method for vibration systems governed by a one-dimensional wave equation

open access: yesMechanical Engineering Journal, 2023
This paper presents a vibration analysis using the substructure elimination method for vibration systems governed by a one-dimensional wave equation. The utilization of a one-dimensional continuous body serves as a suitable approach for understanding the
Keisuke YAMADA, Jinchen JI
doaj   +1 more source

Research Progress of Synthesis and Modification Methods Based on Dynamic Substructures

open access: yesShock and Vibration, 2020
In the process of model modification of large and complex structures, substructure synthesis method and modal reduction method have been widely used, but there are still some difficulties in precision control and engineering application in the process of
Jintao Su, Bangdong Wang
doaj   +1 more source

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