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Jingtao Du
Harbin Engineering University
CouplingBoundary value problemVibrationFourier seriesMathematics
60Publications
11H-index
561Citations
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Publications 44
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#1Deshui Xu (HEU: Harbin Engineering University)H-Index: 1
#2Jingtao Du (HEU: Harbin Engineering University)H-Index: 11
Last. Chuan Tian (HEU: Harbin Engineering University)
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In this paper, flexural vibration and power flow transmission of a ship propulsion shafting structure are analyzed via energy principle description in conjunction with Rayleigh–Ritz procedure, in which the shafting vibration displacement is constructed as a superposition of Fourier series and boundary-smoothing supplementary functions. Effect of the distributed bearing support and thrust loading of propulsion shafting system is considered in terms of potential energy of system Lagrangian. Numeri...
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#1Yang Liu (HEU: Harbin Engineering University)H-Index: 2
#1Yang Liu (HEU: Harbin Engineering University)
Last. Li Cheng (PolyU: Hong Kong Polytechnic University)H-Index: 40
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The concept of the radiation modes, originally proposed for free-field problems, has found its widespread use in sound radiation analyses of vibrating structures and their active control applications. In this paper, the sound radiation of a flexible structure, flush-mounted inside a duct in both 2D and 3D configurations, is investigated via an energy-based formulation in conjunction with the near-field integration technique. The structural radiation characteristics are first discussed in terms o...
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#1Deshui Xu (HEU: Harbin Engineering University)
#1Deshui Xu (HEU: Harbin Engineering University)H-Index: 1
Last. Yuhao Zhao (HEU: Harbin Engineering University)
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In this article, flexural vibration and its power flow of an axially loaded beam with arbitrary boundary and non-uniform elastic foundation are analyzed via energy principle in conjunction with Ray...
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#1Jingtao Du (HEU: Harbin Engineering University)H-Index: 11
#2Qi Chen (HEU: Harbin Engineering University)
Last. Qi Chen (HEU: Harbin Engineering University)H-Index: 1
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As an advanced sensing technique, modal sensors have been attracting a lot of research interest in modal filtering and active control fields. Most of the existing investigations are mainly focused ...
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#1Peng Lyu (HEU: Harbin Engineering University)H-Index: 2
#2Jingtao Du (HEU: Harbin Engineering University)H-Index: 11
Last. Zhigang Liu (HEU: Harbin Engineering University)H-Index: 39
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In this paper, a semianalytical solution for the in-plane vibration analysis of annular panel with arbitrary distribution of internal point constraints is established for the first time. In-plane dynamic behavior of such panel structure is described via energy principle. A modified version of Fourier series is constructed for the in-plane vibration displacement expansion supplemented with the boundary smoothed terms, and the arbitrarily concentrated constraint in each field point is described in...
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#1Yang Liu (HEU: Harbin Engineering University)
#1Yang Liu (HEU: Harbin Engineering University)H-Index: 2
Last. Jingtao Du (HEU: Harbin Engineering University)H-Index: 11
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Abstract Bandgap characteristics of periodic structures can be investigated by the effective material properties via reflection and transmission coefficients. In this paper, for the first time, corresponding effective properties such as mass density, relative impendence and refractive index are presented for a duct embedded with membrane-cavity resonators in its sidewalls. Around the membrane or cavity resonant frequencies, the effective density varies drastically with the negative values, imply...
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#1Qi Chen (HEU: Harbin Engineering University)
#2Jingtao Du (HEU: Harbin Engineering University)H-Index: 11
Abstract Rotating beams are usually encountered in various dynamic analyses of rotation machineries, most of the current studies are mainly focused on the classical boundary conditions. From the viewpoint of engineering practice, elastic boundary supports will be of more significance. Motivated by such limitation, a Fourier series solution for vibration analyses of a rotating hub-beam with elastic boundary restraints and centrifugal stiffening is established by solving the governing differential...
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#1Yang Liu (HEU: Harbin Engineering University)H-Index: 2
#1Yang Liu (HEU: Harbin Engineering University)
Last. Jingtao Du (HEU: Harbin Engineering University)H-Index: 11
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In this paper, the vibroacoustic characteristics and noise reduction behavior of a duct–membrane system with attached strip masses are investigated analytically. Fully coupled structural–acoustic i...
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#1Y. F. Zhang (Dalian Maritime University)
#2Jingtao Du (HEU: Harbin Engineering University)H-Index: 11
Last. Yang Liu (HEU: Harbin Engineering University)H-Index: 2
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Purpose Structural–acoustic coupling problem can be commonly seen in sound field analysis and noise reduction areas. It is of great significance for the further research of the structural–acoustic coupling between flexible panel and enclosure cavity. For the purpose of this paper, a three-dimensional acoustic cavity with flexible partition is modeled.
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