MODAL

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Dynamic coupled thermo-hydro-mechanical problem for heterogeneous deep-sea sediments under vibration of mining vehicle
《Applied Mathematics and Mechanics(English Edition)》2023年第4期603-622,共20页Wei ZHU Xingkai MA Xinyu SHI Wenbo MA 
Project supported by the National Natural Science Foundation of China(Nos.12072309,61603322)。
Due to the influence of deep-sea environment,deep-sea sediments are usually heterogeneous,and their moduli of elasticity and density change as depth changes.Combined with the characteristics of deep-sea sediments,the ...
关键词：heterogeneous deep-sea sediment coupled thermo-hydro-mechanical Green-Lindsay generalized thermoelastic theory normal modal anlalysis dynamic re-sponse 
Size-dependent modal interactions of a piezoelectrically laminated microarch resonator with 3:1 internal resonance被引量：1
《Applied Mathematics and Mechanics(English Edition)》2020年第10期1517-1538,共22页A.NIKPOURIAN M.R.GHAZAVI S.AZIZI 
The nonlinear interactions of a microarch resonator with 3:1 internal resonance are studied.The microarch is subjected to a combination of direct current(DC)and alternating current(AC)electric voltages.Thin piezoelect...
关键词：microarch resonator internal resonance multiple time scales method micro-electro-mechanical system(MEMS) piezoelectric actuation electrostatic excitation 
Suppression of multiple modal resonances of a cantilever beam by an impact damper被引量：13
《Applied Mathematics and Mechanics(English Edition)》2020年第3期383-400,共18页Xiaofeng GENG Hu DING Kexiang WEI Liqun CHEN 
the National Natural Science Foundation of China(No.11772181);the Program of Shanghai Municipal Education Commission(No.2019-01-07-00-09-E0018);the Key Research Projects of Shanghai Science and Technology Commission(No.18010500100)。
Impact dampers are usually used to suppress single mode resonance. The goal of this paper is to clarify the difference when the impact damper suppresses the resonances of different modes. A cantilever beam equipped wi...
关键词：impact damper cantilever beam impacting gap multiple modes viscous damper 
Coupled flapwise-chordwise-axial-torsional dynamic responses of rotating pre-twisted and inclined cantilever beams subject to the base excitation被引量：9
《Applied Mathematics and Mechanics(English Edition)》2019年第8期1053-1082,共30页Jin ZENG Hui MA Kun YU Zhitao XU Bangchun WEN 
Project supported by the National Natural Science Foundation of China(No.11772089);the Fundamental Research Funds for the Central Universities of China(Nos.N170308028 and N170306004);the Program for the Innovative Talents of Higher Learning Institutions of Liaoning of China(No.LR2017035);the Liaoning Revitalization Talents Program of China(No.XLYC1807008)
A rotating pre-twisted and inclined cantilever beam model (RPICBM) with the flapwise-chordwise-axial-torsional coupling is established with the Hamilton principle and the finite element (FE) method. The effectiveness ...
关键词：MODAL characteristic vibration response flapwise-chordwise-axial-torsional base excitation ROTATING TIMOSHENKO beam 
An eigen theory of static electromagnetic field for anisotropic media
《Applied Mathematics and Mechanics(English Edition)》2009年第5期643-652,共10页郭少华 
supported by the National Natural Science Foundation of China (No.50778179)
Static electromagnetic fields are studied based on standard spaces of the physical presentation, and the modal equations of static electromagnetic fields for anisotropic media are derived. By introducing a new set of ...
关键词：anisotropic media static electromagnetic field standard spaces modal equation 
Multidimensional modal analysis of liquid nonlinear sloshing in right circular cylindrical tank
《Applied Mathematics and Mechanics(English Edition)》2007年第8期1007-1018,共12页余延生 马兴瑞 王本利 
Project supported by the National Defense Pre-research Foundation of‘Tenth Five-Year-Plan’of China (No.41320020301)
The multidimensional modal theory proposed by Faltinsen, et al. （2000） is applied to solve liquid nonlinear free sloshing in right circular cylindrical tank for the first time. After selecting the leading modes and ...
关键词：circular cylindrical tank nonlinear free sloshing multidimensional modal method asymptotic modal system dispersion effect 
MODAL SYNTHESIS METHOD FOR NORM COMPUTATION OF H_∞ DECENTRALIZED CONTROL SYSTEMS (II)
《Applied Mathematics and Mechanics(English Edition)》2004年第2期123-134,共12页钟万勰 吴志刚 高强 梁以德 F.W.Williams 
theNationalKeyBasicResearchSpecialFoundationofChina(G1 9990 3 2 80 5) ;theNationalNaturalScienceFoundationofChina ( 1 973 2 0 2 0 ;1 0 2 0 2 0 0 4) ;theUKEngi neeringandPhysicalSciencesResearchCouncil(GR/R0 543 7/ 0 1 )
When using H_∞ techniques to design decentralized controllers for large systems, the whole system is divided into subsystems, which are analysed using H_∞ control theory before being recombined. An analogy was estab...
关键词：H_∞  control decentralized control modal synthesis generalized Rayleigh quotient extended Wittrick-Williams algorithm 
MODAL PART ANALYSIS OF SLOSH OF THE LIQUID IN A CYLINDRICAL CONTAINER IN THE CASE OF SMALL BOND NUMBER被引量：1
《Applied Mathematics and Mechanics(English Edition)》1999年第9期979-984,共6页苟兴宇 王本利 马兴瑞 黄怀德 李铁寿 
the National Defense Foundation
Reconstruction of liquid free slosh modes by curved quiet free surface was investigated in the case of small Bond number by means of modal part analysis method in this paper. It is shown that the curved liquid quiet f...
关键词：slosh Bond number modal part modal part analysis 
A MODEL IDENTIFICATION METHOD OF VIBRATING STRUCTURES FROM INCOMPLETE MODAL INFORMATION
《Applied Mathematics and Mechanics(English Edition)》1995年第5期971-976,共6页郑小平 姚振汉 蘧时胜 
The accurate mathematical models for complicated structures are verydifficult to construct.The work presented here provides an identification method for estimating the mass, damping , and stiffness matrices of linear ...
关键词：vibrating structures model identification incompleteexperiemntal modal data the least squares method iteration technique 
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