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SEMI-ACTIVE: 作品数：50被引量：81H指数：5; 导出分析报告; 相关领域：机械工程交通运输工程建筑科学更多>>; 相关作者：宋志顺钟小勇朱自兰李章兵刘振东更多>>; 相关机构：北京理工大学华南理工大学湖南科技大学中国石油大学（华东）更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金中国航空科学基金中国博士后科学基金湖南省教育厅科研基金更多>>

Semi-Active Sound Absorption Method with Acoustic Impedance Matching: 《Journal of Donghua University(English Edition)》2025年第1期64-70,共7页ZHU Congyun ZHANG Shaoqi DING Guofang; National Natural Science Foundation of China(No.51705545)。; The active sound absorption technique excels in mitigating low-frequency sound waves,yet it falls short when dealing with medium and high-frequency sound waves.To enhance the sound-absorbing effect of medium and high-...; 关键词：acoustic impedance semi-active sound absorption rigid wall cavity depth sound absorption coefficient

An electromagnetic semi-active dynamic vibration absorber for thin-walled workpiece vibration suppression in mirror milling被引量：1: 《Applied Mathematics and Mechanics(English Edition)》2024年第8期1315-1334,共20页Jianghua KONG Bei DING Wei WANG Zhixia WANG Juliang XIAO Hongyun QIU; Project supported by the National Natural Science Foundation of China(Nos.12172248,12021002,12302022,and 12132010);the Tianjin Research Program of Application Foundation and Advanced Technology of China(No.22JCQNJC00780);IoT Standards and Application Key Laboratory of the Ministry of Industry and Information Technology of China(No.202306)。; As critical components of aircraft skins and rocket fuel storage tank shells,large thin-walled workpieces are susceptible to vibration and deformation during machining due to their weak local stiffness.To address thes...; 关键词：semi-active dynamic vibration absorber(SADVA) mirror milling selfsensing vibration absorption tuning thin-walled workpiece

Design,Testing and Control of a Magnetorheological Damper for Knee Prostheses: 《Journal of Bionic Engineering》2024年第4期1788-1800,共13页Hounan Song Yu Cao Wei Chen Lei Ren Yongxin Ma Kunyang Wang Xu Wang Yao Zhang Luquan Ren; funded by Key Technologies Research and Development Program(2018YFC2001300);the Science and Technology Research Project of Educational Department of Jilin Province(JJKH20241259KJ);the National Natural Science Foundation of China(91948302,91848204,52021003);the Project of Scientific and Technological Development Plan of Jilin Province(20220508130RC).; This study aims to develop a magnetorheological(MR)damper for semi-active knee prostheses to restore the walking ability of transfemoral amputees.The core dimensions of the MR damper were determined via theoretical ma...; 关键词：Semi-active knee prosthesis Magnetorheological damper Theoretical analysis ADAMS and MATLAB co-simulation

Phase deviation of semi-active suspension control and its compensation with inertial suspension: 《Acta Mechanica Sinica》2024年第6期141-153,共13页Yi Yang Changning Liu Long Chen Xiaoliang Zhang; supported by the National Natural Science Foundation of China(Grant No.52202471);the National Natural Science Foundation of China:Regional Innovation and Development Joint Fund(Grant No.U20A20331);Jiangsu Funding Program for Excellent Postdoctoral Talent(Grant No.2022ZB659);the National Natural Science Foundation of China(Grant No.52002156 and 52072157);the Postgraduate Education Reform Project of Jiangsu Province(Grant No.KYCX21_3333).; The performance of vehicle suspension is evaluated based on three conflicting indexes:body acceleration,suspension deflection,and dynamic tire load,which vary across different frequency bands.The suspension control st...; 关键词：Vibration isolation Vibration control Phase deviation Control compensation Semi-active suspension

Truly optimal semi-active damping to control free vibration of a single degree of freedom system: 《Theoretical & Applied Mechanics Letters》2024年第2期142-145,共4页Viet Duc La Ngoc Tuan Nguyen; supported by Vietnam Academy of Science and Technology(Grant No.VAST01.04/22-23)。; This paper studies a single degree of freedom system under free vibration and controlled by a general semiactive damping.A general integral of squared error is considered as the performance index.A one-time switching ...; 关键词：Analytical optimization Quadratic integral Lyapunov equation Pontryagin maximum principle

Uncertainty in the seismic performance of semi-active base isolation systems: 《Earthquake Research Advances》2023年第2期62-70,共9页Xiaoyue Wang Zhe Qu; the Natural Science Foundation of China(grant number 52122811);the National Key Research and Development Program of China(grant number 2019YFE0112700).; In a conventional base isolation system,minimizing the seismic responses of the superstructure is always at the cost of increasing the isolator's response.The semi-active control of the isolator has been considered an...; 关键词：Seismic isolation Semi-active control MR damper Control performance UNCERTAINTY

Improving seeking precision by utilizing ghost imaging in a semi-active quadrant detection seeker被引量：4: 《Chinese Journal of Aeronautics》2021年第12期171-176,共6页Siyuan WANG Lijing LI Wen CHEN Mingjie SUN; co-supported by National Natural Science Foundation of China(Nos.61922011 and 61675016);the Fundamental Research Funds for the Central Universities。; Conventional semi-active laser guidance takes advantage of the laser designator to illuminate the stable and uniform laser spot on target precisely.The seeker collects the reflected light by a quadrant detector and ou...; 关键词：Digital micro-mirror device Ghost imaging Guidance system Image acquisition Semi-active laser seeker

An adjustable anti-resonance frequency controller for a dual-stage actuation semi-active vibration isolation system: 《Frontiers of Information Technology & Electronic Engineering》2021年第10期1390-1401,共12页Bo ZHAO Weijia SHI Bingquan WANG Jiubin TAN; Project supported by the National Natural Science Foundation of China(No.51975160)。; In the semiconductor manufacturing industry,the dynamic model of a controlled object is usually obtained from a frequency sweeping method before motion control.However,the existing isolators cannot properly isolate th...; 关键词：Semi-active vibration isolation Dual-stage actuation Dynamic vibration absorption Adjustable anti-resonance frequency controller

Effect of cooperative injection and suction jet on power extraction characteristics of a semi-active flapping airfoil: 《Acta Mechanica Sinica》2021年第9期1433-1445,I0003,共14页Jianyang Zhu Mingkang Zhu Tinghai Cheng; This work was supported by the National Natural Science Foundation of China(Grants 51975429 and 51705380);the Wuhan Application Foundation Frontier Project(Grant 2019010701011404).; A novel cooperative injection and suction jet was employed in this work to improve the power extraction characteristics of a semi-active flapping airfoil(S-AFA).The combined Taguchi method and numerical simulations wa...; 关键词：Cooperative injection and suction jet Power extraction efficiency Semi-active flapping airfoil Vortex Pressure

Pseudo-active actuators:A concept analysis被引量：1: 《International Journal of Mechanical System Dynamics》2021年第2期230-247,共18页Xianxu Bai Guannan He; The authors wish to acknowledge the Fundamental Research Funds for the Central Universities(No.JD2019JGPY0018)for the support of this study.; The superior performance of active vibration control systems largely depends on the four-quadrant controllable execution capability in the available force-velocity diagram of active actuators.Although semi-active vibr...; 关键词：FOUR-QUADRANT pseudo-active actuator pseudo-active suspension semi-active actuator TOPOLOGY

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