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Structural vibration control using nonlinear damping amplifier friction vibration absorbers: 《Applied Mathematics and Mechanics(English Edition)》2025年第5期965-988,共24页S.CHOWDHURY S.ADHIKARI; the postdoctoral research grant received from the University of Glasgow for the partial financial support for this research work。; This paper introduces damping amplifier friction vibration absorbers(DAFVAs),compound damping amplifier friction vibration absorbers(CDAFVAs),nested damping amplifier friction vibration absorbers(NDAFVAs),and levered ...; 关键词：damping amplifier friction vibration absorber(DAFVA) compound damping amplifier friction vibration absorber(CDAFVA) nested damping amplifier friction vibration absorber(NDAFVA) levered damping amplifier friction vibration absorber(LDAFVA) H2 and H∞optimization approaches

Complex retraction equivalent source method for solving external acoustic problems: 《Chinese Journal of Acoustics》2025年第1期45-65,共21页CHEN Jie XIANG Yu SHI Ziyu; supported by the National Natural Science Foundation of China(12364055,51775121).; In order to overcome the non-unique solution problem of the conventional equivalent source method at the corresponding eigenfrequency,the basic guidelines of adding virtual damping into the equivalent source method is...; 关键词：Equivalent source method Complex source point Virtual damping NONUNIQUENESS EIGENFREQUENCY

Silk damping in scalar-induced gravitational waves:a novel probe for new physics: 《Science China(Physics,Mechanics & Astronomy)》2025年第1期75-81,共7页Yan-Heng Yu Sai Wang; supported by the National Natural Science Foundation of China(Grant No.12175243);the National Key R&D Program of China(Grant No.2023YFC2206403);the Science Research Grants from the China Manned Space Project(Grant No.CMS-CSST-2021-B01);the Key Research Program of the Chinese Academy of Sciences(Grant No.XDPB15)。; Silk damping is well known in the study of cosmic microwave background(CMB)and accounts for suppression of the angular power spectrum of CMB on large angular multipoles.In this article,we study the effect of Silk damp...; 关键词：scalar-induced gravitational waves Silk damping new physics

Adaptive Control Strategy for Inertia and Damping of Virtual Synchronous Generator Based on CNN-LSTM Data-Driven Model: 《Wuhan University Journal of Natural Sciences》2024年第6期579-588,共10页LUAN Xiyu ZENG Guohui ZHAO Jinbin TIAN Jiangbin ZHANG Zhenhua LIU Jin; With the application of distributed power sources,the stability of the power system has been dramatically affected.Therefore,scholars have proposed the concept of a virtual synchronous generator(VSG).However,after the...; 关键词：virtual synchronous generator(VSG) adaptive control frequency restoration convolutional neural network-long short-term memory(CNN-LSTM)

MR damping design of the drive joints of the lunar-based extravehicular spacesuit booster mechanism: 《Journal of Southeast University(English Edition)》2024年第4期410-416,共7页Lü Hongzhan Yang Hai Jiang Yu; The Natural Science Foundation of Shanghai(No.20ZR1401300).; Considering the special walking behavior of astronauts on the lunar surface,to reduce the impact on their bones and improve safety during extravehicular operations and walking,a magnetorheological(MR)damping mechanism...; 关键词：extravehicular spacesuit MAGNETORHEOLOGICAL flexible transmission damping characteristics

Mechanism of Ta on the microstructure and properties of Fe-Mn damping alloys: 《Tungsten》2024年第4期767-777,共11页Gui-Xiang Liu Kun Zhang Chao Han Xiao-Lin Shao Jun Lu Lin Zhang Xiao-Song Jiang Zi-Xuan Wu Liu Yang; supported by the Key Labora tory of Infrared Imaging Materials and Detectors,Shanghai Insti tute of Technical Physics,Chinese Academy of Sciences(No.IIM DKFJJ-21-10);China Postdoctoral Science Foundation(No 2018T110993)。; Fe-Mn-Co-xTa alloys(x=0,1,2,3 wt.%)were fabricated using spark plasma sintering to explore the influence of Ta content on the microstructure,mechanical properties,and damping characteristics of Fe-17Mn-3Co damping all...; 关键词：Fe-Mn-Co TA Spark plasma sintering Mechanical properties DAMPING

Dynamic Train Vertical Sperling Index Evaluation Model Considering Wheel-Rail Contact Loss: 《Journal of Shanghai Jiaotong university(Science)》2024年第6期1103-1115,共13页LIU Yiling ZHANG Jingwei LIU Xuewen WANG Yansong ZHOU Yueting; the National Natural Science Foundation of China(Nos.51675324,11972257 and 11832014);the Project of the Science and Technology Commission of Shanghai Municipality(No.19030501100);the Technical Service Platform for Vibration and Noise Testing and Control of New Energy Vehicles(No.18DZ2295900)。; In this study,a half-space 13-degree-of-freedom vehicle model,a double track model,and a train-bridge interaction model were integrated to form a combined people-train-rail-bridge interaction model to analyze the vert...; 关键词：equivalent mechanical model people-train-rail-bridge interaction Sperling index analysis massspring-damping theory

Microstructure,Mechanical Properties and Damping of SiC/Mg97Zn1Y2 Composites: 《Journal of Wuhan University of Technology(Materials Science)》2024年第6期1580-1585,共6页WAN Diqing TANG Hao WANG Houbin WANG Yu YANG Fan SUN Yumeng WANG Yongyong; Funded by the National Natural Science Foundation of China(No.51665012)。; SiC particles were added to the Mg97Zn1Y2 alloy to improve its mechanical properties and damping properties.The microstructure,mechanical properties,and strain amplitude dependence of high-damping and high-strength Si...; 关键词：high damping high strength magnesium matrix composites strain amplitude

Bresse Beam with Damping and Logarithmic Source: 《Chinese Annals of Mathematics,Series B》2024年第5期685-702,共18页Sebastiao CORDEIRO Carlos BALDEZ Carlos RAPOSO Ducival PEREIRA Octavio VERA; supported by UTA MAYOR(Nos.2022-2023,4764-22,2023-2024,4772-23)。; This paper investigates the stabilization of a Bresse system with internal damping and logarithmic source.The authors use the potential well theory.For initial data in the stability set created by the Nehari surface,t...; 关键词：Bresse beam Logarithmic source Global solution Exponential decay Numerical approach

Landau quantization effects on damping Kawahara solitons in electron–positron–ion plasma in rotating ionized medium: 《Communications in Theoretical Physics》2024年第10期141-150,共10页E I El-Awady S Hussain N Akhtar; For the dynamics of three-dimensional electron–positron–ion plasmas,a fluid quantum hydrodynamic model is proposed by considering Landau quantization effects in dense plasma.Ion–neutral collisions in the presence o...; 关键词：Kawahara equation solitary and cnoidal waves quantum plasma magnetoplasmas Landau quantization Coriolis force

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