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2nd International Conference of Mechanical System Dynamics, ICMSD 2023

作者： Wei, Long Zhang, Zhong Ren, Fang Gao, Bo Hao, Ziyuan Science and Technology On Reliability and Environment Engineering Laboratory Beijing Institute of Structure and Environment Engineering Beijing100076 China

ISBN: (纸本)9789819980475

In order to better use the video motion amplification method in the dynamic test of vibrating objects, it is first necessary to determine the appropriate video motion amplification algorithm. This article first briefly introduces three well known video motion magnification methods as the liner EVM, the PVM and the fast PVM. Then the performances of different video motion magnification methods are compared through cantilever vibration measurement experiments and data analysis, and finally some suggestions for selecting appropriate video motion magnification methods in vibration measurement are given. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Vibration measurement

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Research on the Virtual Experiment of the Ground Active Flutter Suppression via the Receptance Method 2nd

Research on the Virtual Experiment of the Ground Active Flut...

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2nd International Conference of Mechanical System Dynamics, ICMSD 2023

作者： Yang, Zhijun Zhang, Zhong Gao, Bo Guo, Jing Science and Technology On Reliability and Environment Engineering Laboratory Beijing Institute of Structure and Environment Engineering Beijing100076 China

ISBN: (纸本)9789819980475

Active flutter suppression technology can greatly expand the flight envelope of aircraft and provide technical support for aircraft weight reduction design. However, it is difficult to carry out the experiments on active flutter suppression technology, and there are great risks to verify this technology in flight test and wind tunnel test. In order to establish a safe and controllable experimental system on active flutter suppression, a virtual experimental verification model for active ground flutter suppression of aircraft wing and wing structure is presented in this paper based on the ground flutter experiment system. In the ground flutter experiment system, the rigid-flexible coupling reduced order model of wing and wing structure is established via Craig-Bampton method. The doublet lattice method is used to establish the generalized aerodynamic force based on the structural mode, and the vibrator is used to provide the excitation force to track the real-time aerodynamic signal. The receptance method is used to establish the active flutter suppression system. The simulation results show that the established virtual experiment platform for active ground flutter suppression can verify the control effect of the control system, and the Active flutter suppression system based on the receptance method can greatly improve the flutter boundary of aircraft wing and wing structure. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Flight envelopes

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Structure-performance relationship between denitration performance and catalytic interface morphologies of MnCeO_(x)/P84 catalytic filters

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Journal of Rare Earths 2025年第3期43卷 516-525,I0004页

作者： Bo Yang Yujie Lei Maosen Ni Liuying Wang Qiong Huang Mindong Chen Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology(CICAEET) Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution ControlSchool of Environmental Science and EngineeringNanjing University of Information Science&TechnologyNanjing210044China

MnCeO_(x)/P84 catalytic filters with spherical,flower-like,cubic and rod-like catalytic interfaces were synthesized respectively,and their catalytic activities in the NH_(3)-SCR reaction were *** MnCeO_(x)/P84 catalytic filter with spherical catalytic interfaces(recorded as S-MnCeO_(x)/P84)exhibits the best catalytic denitration *** NO_(x)removal efficiency of S-MnCeO_(x)/P84 reaches the highest value of 98.6%at 160℃when the catalyst loading is 100 g/m^(2).At the same time,S-MnCeO_(x)/P84 exhibits good SO_(2)resistance and stability,achieving a NO_(x)removal rate of 83%at 190℃with 30 ppm SO_(2).The characterization results illustrate that the MnCeO_x active component in S-MnCeO_(x)/P84 is present in weak crystalline states,tightly wrapped around the surface of the filter fiber,and uniformly dispersed,and the mesopore is the main pore structure of the S-MnCeO_(x)/P84,which can provide a channel for the catalytic reaction to *** the same time,transmission electron microscopy(TEM)characterization shows that y-MnO_(2)is the main form of MnO_(2)in the S-MnCeO_(x)/*** analysis of H_(2)temperature programmed reduction(H_(2)-TPR).NH_(3)temperature programmed desorption(NH_(3)-TPD)and in-situ diffuse reflectance infrared spectra(DRIFTS)show that S-MnCeO_(x)/P84 has good redox ability at 100-200℃and has abundant Lewis acid sites and Bronsteds acid sites,which provides an important guarantee for its superior low-temperature NH_(3)-SCR denitration performance.

关键词： Catalytic filter Nitrogen oxides(NO_x) Denitration Catalytic interface Rare earths

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Reinforcing and toughening mechanism of the in-situ metastable nanostructured alumina-titanium oxide composite coating

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材料科学技术（英文版） 2025年第5期208卷 120-131页

作者： Yu-duo Ma Yong Yang Li-wu Yuan Wei Tian Hongjian Zhao Hebei Key Laboratory of New Functional Materials School of Materials Science and EngineeringState Key Laboratory of Reliability and Intelligence of Electrical EquipmentHebei University of TechnologyTianjin 300401China Hebei Huabei Diesel Engine Co. Ltd.Shijiazhuang 050081China Hebei Key Laboratory of New Functional Materials School of Materials Science and EngineeringState Key Laboratory of Reliability and Intelligence of Electrical EquipmentHebei University of TechnologyTianjin 300401China AECC Sichuan Gas Turbine Establishment Chengdu 610500China

High porosity and high brittleness are the main reasons that limit the long-term service life of the alumina-titanium oxide composite ***,a metastable nanostructured alumina-titanium oxide composite coating with high density and high properties was synthesized by plasma spraying of TiO2-Al composite *** main phases of the metastable nanostructured alumina-titanium oxide were y-Al2O3,TiO and *** coating,as prepared,contains various metastable microstructures,such as fine-grained,intra-/inter-granular,and"self-locking"*** metastable microstruc-tures are important for the improvement of hardness and toughness of the *** with other alumina-based composite coatings,the metastable nanostructured alumina-titanium oxide compos-ite coating showed the most impressive overall *** reinforcing and toughening mechanism of the metastable alumina-titanium oxide composite coating included fine grain strengthening and self-toughening of the metastable microstructure.

关键词： In-situ synthesis Metastable oxide Nanostructured coating Reinforcing and toughening mechanism

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Characterization of the interfacial structure and fracture behavior of in situ synthesized ceramics to reinforce Ni-based composite coatings

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材料科学技术（英文版） 2025年第5期208卷 11-25页

作者： Yuxin Wang Yanchun Dong Yun Tian Jianing Liu Dongyao Zhang Chunli Qiu Yanqi Zhao Yong Yang School of Materials Science and Engineering Hebei University of TechnologyTianjin 300132China Key Lab.for New Type of Functional Materials in Hebei Province School of Materials Science and EngineeringState Key Laboratory of Reliability and Intelligence of Electrical EquipmentHebei University of TechnologyTianjin 300132China

This work used the in-situ synthesis of molten-state nitride ceramic phase-reinforced Ni-based alloy coat-ings,aiming to improve the phase-interface bonding through the interdependent co-solidification be-tween molten *** XRD was used to analyze the physical phases of the composite *** microstructure and phase-interface structure were characterized in detail by combining SEM,TEM,HRTEM,FFT,and SAED *** tester and microforce microhardness tester were em-ployed to measure the surface hardness and elastic modulus of the composite *** fracture be-havior of the composite coatings was characterized by observing the fracture morphology of the coatings using SEM combined with the EDS *** was found that the formation mechanisms of inter-facial misfit dislocation assistance,lattice distortion,aggregation of stacking faults,and specific growth orientation between the y-Ni matrix phase and each ceramic phase in NiCrBSi-TiCrN composite coat-ings improved the lattice matching between the two-phase interface,which resulted in the formation of atomically corresponding coherent lattice relations and stepped interfacial semi-coherent lattice relations,and enhanced the degree of phase-interface *** this basis,the composite coatings with high Cr content further inhibited the expansion of interphase penetration cracks due to the existence of Cr-rich zones at the phase interface,thus exhibiting high fracture *** work provides new opinions on the improvement of phase-interface bonding and composition design of Ni-based composite coatings.

关键词： In situ synthesis NiCrBSi-TiCrN composite coating Phase interface Fracture behavior

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Advancing performance assessment of a spectral beam splitting hybrid PV/T system with water-based SiO_(2)nanofluid

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Frontiers in Energy 2024年第6期18卷 799-815页

作者： Bin Yang Yuan Zhi Yao Qi Lingkang Xie Xiaohui Yu Hebei Key Laboratory of Thermal Science and Energy Clean Utilization School of Energy and Environment EngineeringHebei University of TechnologyTianjin 300401China

Spectral beam split is attracting more attention thanks to the efficient use of whole spectrum solar energy and the cogenerative supply for electricity and *** can selectively absorb and deliver specific solar spectra,making various nanofluids ideal for potential use in hybrid photovoltaic/thermal(PV/T)systems for solar spectrum *** the effects of design parameters is extremely beneficial for optimal frequency divider design and system performance *** water-based SiO_(2)nanofluid with excellent thermal and absorption properties was proposed as the spectral beam splitter in the present study,to improve the efficiency of a hybrid PV/T ***,a dual optical path method was applied to get its spectral transimissivity and analyze the impact of its concentration and optical path on its optical ***,a PV and photothermal model of the presented system was built to investigate the system *** result indicates that the transimissivity of the nanofluids to solar radiation gradually decreases with increasing SiO_(2)nanofluid concentration and optical *** higher nanofluid concentration leads to a lower electrical conversion efficiency,a higher thermal conversion efficiency,and an overall system *** the overall efficiency and economic cost,the optimal SiO_(2)nanofluid concentration is 0.10 wt.%(wt.%,mass fraction).Increasing the optical path(from 0 to 30 mm)results in a 60.43%reduction in electrical conversion efficiency and a 50.84%increase in overall system ***,the overall system efficiency rises sharply as the optical path increases in the 0–10 mm range,and then slowly at the optical path of 10–30 ***,the overall system efficiency increases first and then drops upon increasing the focusing *** maximum efficiency is 51.93%at the focusing ratio of 3.

关键词： full-spectrum solar energy photovoltaic/thermal(PV/T)system water-based nanofluid system efficiency

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Natural tourmaline activated peracetic acid for efficient degradation of sulfadiazine: Reaction mechanisms and catalyst reusability

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Progress in Natural science:Materials International 2023年第4期33卷 458-466页

作者： Zhendong Chen Liuyang He Shitai Shen Desong Zhang Zhuqi Chen Li Wu Lie Yang Hubei Key Laboratory of Mineral Resources Processing and Environment School of Resources and Environmental Engineering Wuhan University of Technology School of Environmental Science and Engineering Huazhong University of Science and Technology Key Laboratory of Vegetation Ecology of the Ministry of Education School of Environment Northeast Normal University

Peracetic acid（PAA） has received extensive attention in the water treatment due to its high oxidation potential and low toxicity of by-products. In this study, natural non-toxic mineral tourmaline（TM） was used to activate PAA to remove sulfadiazine（SDZ）. The TM/PAA system could remove 92 % SDZ in 120 min. The radical analysis confirmed the co-existence of both free radical and non-free radical degradation pathways in the TM/PAA system,indicating that singlet oxygen（1O2） and acetyl（per）oxy radicals(CH3C（O）O· and CH3C（O）OO·) were the main reactive oxygen species. The Fe2+/Fe3+ratio on the TM surface decreased during the degradation of SDZ due to Fe2+consumption. The effect of water matrix on SDZ removal indicated that Cl-, SO42-and NO3-posed little effect on SDZ removal, while CO32-inhibited SDZ removal by affecting pH. Particularly, humic acid（HA） slightly promoted SDZ removal. Ten by-products of SDZ were identified by HPLC-MS/MS, and four possible transformation pathways（SO2detachment, S–N breakage, amino acid oxidation, and hydroxylation） were *** was recycled five times and the removal of SDZ remained above 85 %, confirming its excellent *** work indicates the TM/PAA system is of great potential for the application on the organic contaminant removal.

关键词： Peracetic acid Tourmaline Singlet oxygen Organic radicals

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Furan-derived Schiff base covalent adaptable thermosets with recyclability and anti-flammability

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Green Chemical engineering 2024年第3期5卷 364-373页

作者： Ping Zhang Shuyu Jia Ruishi Xie Lin Chen Ying Xiong State Key Laboratory of Environment-friendly Energy Materials School of Materials Science and EngineeringSouthwest University of Science and TechnologyMianyang621010China

Conventional thermosetting polymers,mostly derived from nonrenewable petroleum resources,are not reprocessable and recyclable due to their highly cross-linked three-dimensional networks and face the disadvantage of high *** solve these issues,in this study,we synthesized a novel Schiff base covalent adaptable thermoset from a furan-derived tri-aldehyde monomer(TMFP)and a furan-derived di-amine monomer(DFDA).The as-prepared TMFP-DFDA-Vitrimer exhibited superior anti-flammability with a high limiting oxygen index(LOI)of 35.0%and a UL-94 V-0 rating,which was attributed to the excellent charring ***,TMFPDFDA-Vitrimer could also be conveniently recycled by chemical decomposition under a mixed hydrochloric acid/tetrahydrofuran(HCl/THF)*** recycling for 5 times,the thermal,mechanical,and flame retardant properties of the recycled TMFP-DFDA-Vitrimer retained almost unchanged compared to the original *** work provides a prime instance to develop advanced thermosetting polymers from abundant furan-based compounds.

关键词： Furan-based compounds Vitrimer Recyclability Flame retardancy

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Impact of annealing on structural and corrosion resistance properties of Ti_(20)Zr_(20)Hf_(20)Be_(20)Ni_(20)high-entropy metallic glass

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Rare Metals 2025年第1期44卷 565-580页

作者： Ke-Ran Li Pan Gong Dong-Liang Wang Cheng Zhang Hu Huang Muhammad Yasir Mao Zhang Xin-Yun Wang State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China Research Institute of Huazhong University of Science and Technology in Shenzhen Shenzhen 518057China Key Laboratory of CNC Equipment Reliability Ministry of EducationSchool of Mechanical and Aerospace EngineeringJilin UniversityChangchun 130022China Department of Materials Science&Engineering Institute of Space TechnologyIslamabad 44000Pakistan

This study comprehensively investigates the effects of annealing on the structural,electrochemical properties and passivation film characteristics of Ti_(20)Zr_(20)Hf_(20)Be_(20)Ni_(20)(at%)high-entropy metallic glass(HE-MG).Subjected to various annealing temperatures,the samples were analyzed in a 3.5 wt%NaCl solution to evaluate changes in their microstructure and assess their corrosion *** reveal that the HE-MG undergoes multistage crystallization,displaying an amorphous matrix integrated with face centered cubic(FCC)and Ni_(7)Zr_(2)phases between 420 and 500℃,indicating robust thermal *** assessments identify a critical temperature threshold:Below the glass transition temperature(Tg),the HE-MG maintains excellent corrosion resistance,promoting stable passivation *** Tg,enhanced long-range atomic rearrangement during relaxation increases passivation layer defects and significantly diminishes corrosion resistance.X-ray photoelectron spectroscopy(XPS)analyses show that the primary components of the passivation layer are TiO_(2),ZrO_(2),HfO_(2)and *** annealing temperatures lead to enhanced Be and Ni content and decreased Ti,Zr and ***,high mixing entropy and significant atomic size mismatch suppress long-range atomic rearrangement and *** crystallization begins above Tg by_(20)℃,with crystalline phases evenly distributed within the matrix without drastically affecting corrosion *** investigation highlights the impact of thermal treatment on the properties of HE-MG,contributing valuable insights into optimizing their performance and applications.

关键词： High-entropy metallic glass Annealing Corrosion resistance Glass transition temperature Cluster

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A wood pulp sponge cleaning wipe as a high-performance bioanode material in microbial electrochemical systems for its vast biomass carrying capacity,large capacitance,and small charge transfer resistance

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Journal of Materials science & technology 2024年第14期181卷 1-10页

作者： Pinpin Yang Yaqian Gao Weihua He Jingkun An Jia Liu Nan Li Yujie Feng School of Environmental Science and Engineering Academy of Ecology and EnvironmentTianjin University300072 TianjinChina State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150090China

Microbial electrochemical systems are a promising green and sustainable technology that can transform waste into *** conversion efficiency and lowering system costs,particularly for elec-trodes,are the primary directions that promote practical *** sponges made from wood pulp have been industrially mass-produced in various application scenarios due to their porosity and green *** this study,the three-dimensional(3D)porous cellulose sponges carbon(CSC)was obtained by directly carbonizing cellulose sponges at different temperatures(600,700,800,900,1000,and 1100℃).It has been successfully used as a high-performance anode in microbial fuel cells(MFCs).The carbonization temperature significantly impacted the materials’specific surface area,con-ductivity,and *** greater the anode material’s carbonization temperature,the lower the charge transfer resistance and the higher the maximum power density(CSC-1100,4.1±0.1 W m^(-2)).The CSC-700's maximum power density(3.62±0.11 W m^(-2))was the highest power density reported to date among lignocellulose-based anodes with relatively low energy *** pleated multilayer porous surface promotes microbial adhesion and can build thicker biofilms with the highest biomass of 2661±117μg cm^(-2)(CSC-1100)and containing 86%electrogenic bacteria(Geobacter).To investigate the effect of conducting polymers on the material’s surface,we introduced polyaniline and *** found that the CSC-1000/PPy bioanodes produced a maximum power density(4.18±0.05 W m^(-2)),slightly higher than of without polypyrrole-modified(CSC-1000,3.99±0.06 W m^(-2)),indicating that the CSCs anode surface had excellent electron transfer efficiency and could achieve the same amount of energy as the polypyrrole *** study introduced a promising method for fabricating high-performance anodes using low-cost,industrialized,and sustainable materials.

关键词： Polyaniline Polypyrrol Capacitance anode Electrogenic biofilms Extracellular electron transfer

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