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Energy harvesting via nonlinear energy sink for whole-spacecraft

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Science China(Technological Sciences) 2019年第9期62卷 1483-1491页

作者： zhang yewei LU YanNan CHEN LiQun Faculty of Aerospace Engineerings Shenyang Aerospace UniversityShenyang 110136China School of Science Harbin Institute of TechnologyShenzhen 518055China

This paper presents nonlinear energy sink with giant magnetostrictive-piezoelectric material for energy harvesting of the wholespacecraft vibration reduction system. The whole-spacecraft vibration attenuation system can effectively reduce vibration and achieve self-tuning enhanced energy harvesting range. The open-circuit voltage generated at low frequency is affected by the magnetic field force, alternating magnetic field and relative displacement. In order to acquire a steady periodic solution of the energy harvesting system, a combination of the harmonic balance method and pseudo arc length continuation technique is *** numerical outcomes are consistent with the analytical outcomes in a certain range, which also proves the accuracy and reliability of the results. The amplitude and voltage of the energy harvesting system are analyzed by parameters such as cubic stiffness, viscous damping, and external excitation acceleration. In addition, this paper provides a new idea for broadband energy harvesting.

关键词： nonlinear energy sink giant magnetostrictive-piezoelectric material pseudo arc length continuation technique energy harvesting

Aeroelastic Properties and Nonlinear Vibration Control of a Simply-Supported Lattice Sandwich Beam Embedded with Nitinol-Steel Wire Ropes

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Acta Mechanica Solida Sinica 2022年第5期35卷 755-764页

作者： yewei zhang Xichao Chen Donghui Li Jian Zang College of Aerospace Engineering Shenyang Aerospace UniversityShenyang110136China

As a novel vibration absorber,Nitinol-steel wire rope(NiTi-ST)has rarely been studied on vibration suppression for lattice sandwich beams in supersonic *** this paper,NiTi-ST with nonlinear stiffness and hysteretic damping is embedded in a lattice sandwich beam to control the beam's *** nonlinear restoring and hysteretic damping force of NiTi-ST are treated as *** dynamic equation is established based on Hamilton's *** amplitude responses of the beam with different NiTi-ST configurations are *** vibration-suppression effects and energy dissipation of lattice sandwich beam with different NiTi-ST configurations under different air velocities are also *** frequency-domain and time-domain methods are used to analyze the structural aeroelastic *** results show that the use of NiTi-ST can significantly suppress excessive vibration of a lattice sandwich beam in supersonic airflow.

关键词： Lattice sandwich beam Nonlinear vibration control Nitinol-steel wire rope Supersonic airflow

Research on linear/nonlinear viscous damping and hysteretic damping in nonlinear vibration isolation systems

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Applied Mathematics and Mechanics(English Edition) 2020年第7期41卷 983-998页

作者： Zhong zhang Muqing NIU Kai YUAN yewei zhang Science and Technology on Reliability and Environment Engineering Laboratory Beijing Institute of Structure and Environment EngineeringBeijing 100076China School of Science Harbin Institute of TechnologyShenzhen 518055China College of Aerospace Engineering Shenyang Aerospace UniversityShenyang 110136China

A nonlinear vibration isolation system is promising to provide a high-efficient broadband isolation *** this paper,a generalized vibration isolation system is established with nonlinear stiffness,nonlinear viscous damping,and Bouc-Wen(BW)hysteretic *** approximate analytical analysis is performed based on a harmonic balance method(HBM)and an alternating frequency/time(AFT)domain *** evaluate the damping effect,a generalized equivalent damping ratio is defined with the stiffness-varying characteristics.A comprehensive comparison of different kinds of damping is made through numerical *** is found that the damping ratio of the linear damping is related to the stiffness-varying characteristics while the damping ratios of two kinds of nonlinear damping are related to the responding *** linear damping,hysteretic damping,and nonlinear viscous damping are suitable for the small-amplitude,medium-amplitude,and large-amplitude conditions,*** hysteretic damping has an extra advantage of broadband isolation.

关键词： vibration isolation nonlinear damping Bouc-Wen(BW)model harmonic balance method(HBM)

Resonance response of fluid-conveying pipe with asymmetric elastic supports coupled to lever-type nonlinear energy sink

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Applied Mathematics and Mechanics(English Edition) 2022年第12期43卷 1873-1886页

作者： Runqing CAO Zhijian WANG Jian ZANG yewei zhang Faculty of Aerospace Engineering Shenyang Aerospace UniversityShenyang 110136China

This paper studies the vibration absorber for a fluid-conveying pipe,where the lever-type nonlinear energy sink(LNES)and spring supports are coupled to the asymmetric ends of the *** pseudo-arc-length method integrated with the harmonic balance method is used to investigate the steady-state responses ***,the numerical solution of the fluid-conveying pipe is calculated with the Runge-Kutta ***,a special response,called the collapsible closed detached response(CCDR),is first observed when the vibration response of mechanical structures is ***,the relationship between the CCDR and the main structure primary response(PR)is *** addition,the closed detached response(CDR)is also observed to research the resonance response of the fluid-conveying *** appearance of either the CCDR or the CDR does affect the resonance ***,the mentioned two phenomena underline that the trend of vibration responses under external excitation goes continuous and ***,the main advantage of the LNES is presented by contrasting the LNES with the nonlinear energy sink(NES)coupled to the same pipe *** is found that the LNES can reduce the resonance response amplitude by 91.33%.

关键词： fluid-conveying pipe vibration attenuation collapsible closed detached response(CCDR) lever-type nonlinear energy sink(LNES) elastic support

An active high-static-low-dynamic-stiffness vibration isolator with adjustable buckling beams:theory and experiment

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Applied Mathematics and Mechanics(English Edition) 2024年第3期45卷 425-440页

作者： Kefan XU Muqing NIU yewei zhang Liqun CHEN School of Science Harbin Institute of TechnologyShenzhen 518055Guangdong ProvinceChina College of Aerospace Engineering Shenyang Aerospace UniversityShenyang 110136China Shanghai Key Laboratory of Mechanics in Energy Engineering Shanghai Frontier Science Center of MechanoinformaticsShanghai Institute of Applied Mathematics and MechanicsSchool of Mechanics and Engineering ScienceShanghai UniversityShanghai 200444China Shanghai Institute of Aircraft Mechanics and Control Shanghai 200092China

High-static-low-dynamic-stiffness(HSLDS)vibration isolators with buckling beams have been widely used to isolate external *** active adjustable device composed of proportion integration(PI)active controllers and piezoelectric actuators is proposed for improving the negative stiffness stroke of buckling beams.A nonlinear output frequency response function is used to analyze the effect of the vibration *** prototype of the active HSLDS device is built,and the verification experiment is *** results show that compared with the traditional HSLDS vibration isolator,the active HSLDS device can broaden the isolation frequency bandwidth,and effectively reduce the resonant amplitude by adjusting the active control *** maximum vibration reduction rate of the active HSLDS vibration isolator can attain 89.9%,and the resonant frequency can be reduced from 31.08 Hz to 13.28 ***,this paper devotes to providing a new design scheme for enhanced HSLDS vibration isolators.

关键词： active control high-static-low-dynamic-stiffness(HSLDS) vibration isola-tor dynamic analysis

A Supersonic Aerodynamic Energy Harvester:A Functionally Graded Material Beam with a Giant Magnetostrictive Thin Film

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Acta Mechanica Solida Sinica 2022年第1期35卷 161-173页

作者： Zhengqi Qin Weijiao Chen Jian Zang yewei zhang College of Aerospace Engineering Shenyang Aerospace UniversityShenyang 110136China

In this study,a simply supported functionally graded material beam with a giant magnetostrictive thin film(GMF)was selected as an energy *** on the theory of large deformation and the Villari effect of GMF,piston theory was used to simulate the dynamic equation of the whole structure under supersonic aerodynamic pressure and in a thermal environment by using Hamilton^principle,and the energy harvesting effect of GMF was simulated by using a Runge-Kutta *** the critical flutter velocity,the maximum voltage output and energy harvesting results were discussed as they were affected by external factors such as the geometric model of structure parameters,slenderness ratio,gradient index,number of turns of an electromagnetic coil,airflow velocity,and *** electromechanical coupling coefficient/C33 was 71%.The results show that this proposed harvester can achieve an optimal harvesting effect by adjusting the parameters appropriately,and collect energy in thermal and supersonic environments using the GMF,which provides power to sensors of the health monitoring system of the aircraft’s own structure.

关键词： Supersonic aerodynamic energy harvesting Functionally graded material(FGM)beam Giant magnetostrictive thin film(GMF)

A novel way for vibration control of FGM fluid-conveying pipes via NiTiNOL-steel wire rope

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Applied Mathematics and Mechanics(English Edition) 2023年第6期44卷 877-896页

作者： Jian ZANG Ronghuan XIAO yewei zhang Liqun CHEN College of Aerospace Engineering Shenyang Aerospace UniversityShenyang 110136China Shanghai Institute of Applied Mathematics and Mechanics School of Mechanics and Engineering ScienceShanghai UniversityShanghai 200444China

In this study,a coupling model of fluid-conveying pipes made of functionally graded materials(FGMs)with NiTiNOL-steel(NiTi-ST)for vibration absorption is *** vibration responses of the FGM fluid-conveying pipe with NiTi-ST are studied by the Galerkin truncation method(GTM)and harmonic balance method(HBM).The harmonic balance solutions and the numerical results are ***,the linearized stability of the structure is *** effects of the structure parameters on the absorption performance are also *** results show that the NiTi-ST is an effective means of vibration ***,in studying the effect of the NiTi-ST,a closed detached response(CDR)is first *** is noteworthy that the CDR may dramatically change the vibration amplitude and that the parameters of the NiTi-ST may determine the emergence or disappearance of the *** vibration absorption device can be extended to offer more general vibration control in engineering applications.

关键词： NiTiNOL-steel(NiTi-ST) functionally graded material(FGM)fluid-conveying pipe vibration absorption harmonic balance method(HBM) closed detached response(CDR)

Nonlinear Vibration Isolation of Spacecraft System by a Bionic Variable-Stiffness Device Enhanced by Electromagnetic Component

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Acta Mechanica Solida Sinica 2023年第6期36卷 921-932页

作者： Zeyu Chai Xuyuan Song Jian Zang yewei zhang College of Aerospace Engineering Shenyang Aerospace UniversityShenyang 110136China

This study addresses the modified bionic vibration isolation technology by introducing the electromagnetic system to simulate biological damping *** has been proven effective in improving the vibration *** assuming the spacecraft-adapter system as a two-degree-of-freedom system,an excellent simplified model can be *** novel bionic vibration isolation device(ABVS-EMVI),which combines an active bionic variable-stiffness device(ABVSVI)with the electromagnetic system,is proposed for the purpose of isolating vibration and harvesting energy at the same *** dynamic equations of the spacecraft-adapter system with ABVS-EMVI are obtained using the Taylor expansion within the framework of the Lagrange equation,and the harmonic balance method is introduced to acquire the amplitude and voltage response of the *** results indicate that the electromagnetic system can enhance the vibration isolation performance and provide energy harvesting *** confirming the ability of ABVS-EMVI to deal with different forms and amplitudes of excitation,the performance of vibration isolation and energy harvesting is investigated in terms of various parameters,and several new conclusions have been drawn.

关键词： Bionic structure Electromagnetic system Vibration isolation Energy harvesting

Vibration reduction evaluation of a linear system with a nonlinear energy sink under a harmonic and random excitation

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Applied Mathematics and Mechanics(English Edition) 2020年第1期41卷 1-14页

作者： Jiren XUE yewei zhang Hu DING Liqun CHEN Shanghai Institute of Applied Mathematics and Mechanics Shanghai Key Laboratory of Mechanics in Energy EngineeringSchool of Mechanics and Engineering ScienceShanghai UniversityShanghai 200072China Faculty of Aerospace Engineering Shenyang Aerospace UniversityShenyang 110136China

The nonlinear behaviors and vibration reduction of a linear system with a nonlinear energy sink(NES)are *** linear system is excited by a harmonic and random base excitation,consisting of a mass block,a linear spring,and a linear viscous *** NES is composed of a mass block,a linear viscous damper,and a spring with ideal cubic nonlinear *** on the generalized harmonic function method,the steady-state Fokker-Planck-Kolmogorov equation is presented to reveal the response of the *** path integral method based on the Gauss-Legendre polynomial is used to achieve the numerical *** performance of vibration reduction is evaluated by the displacement and velocity transition probability densities,the transmissibility transition probability density,and the percentage of the energy absorption transition probability density of the linear *** sensitivity of the parameters is analyzed for varying the nonlinear stiffness coefficient and the damper *** investigation illustrates that a linear system with NES can also realize great vibration reduction under harmonic and random base excitations and random bifurcation may appear under different parameters,which will affect the stability of the system.

关键词： nonlinear energy sink(NES) Gauss-Legendre polynomial transmissibility percentage of energy absorption