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A decoupled method for time-dependent reliability-based design optimization

Science China(Technological Sciences) 2025年第1期68卷 308-320页

作者： Dequan ZHANG Meide YANG Xu HAN State Key Laboratory of Reliability and Intelligence of Electrical Equipment School of Mechanical EngineeringHebei University of TechnologyTianjin 300401China State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body College of Mechanical and Vehicle EngineeringHunan UniversityChangsha 410082China

Time-dependent reliability-based design optimization(TRBDO)has received extensive attention because of its ability to achieve optimal solutions that help meet the requirement for whole lifecycle reliability by quantitatively considering dynamic ***,directly solving TRBDO problems is computationally expensive,if not prohibitive,owing to the need to repeatedly evaluate time-dependent probabilistic *** address this challenge,an efficient decoupled method called sequential optimization and time-dependent reliability assessment(SOTRA)is proposed in this *** method transforms the original TRBDO problem,initially formulated probabilistically,into a problem using percentile formulation after discretizing time-dependent performance *** adopting the equivalent minimum performance target point(EMPTP)concept,the TRBDO problem is further converted into an equivalent deterministic optimization problem,which is subsequently solved through a sequential iteration process involving deterministic optimization and time-dependent reliability *** efficiently and robustly search an EMPTP for reliability analysis,a time-dependent self-adaptive finite-step length method is *** verify the proposed SOTRA method against existing TRBDO methods,a numerical example,a benchmark structural design case of a simply supported beam,and an engineering application for flexible wheel design are exemplified in this *** results demonstrate that the proposed SOTRA method exhibits high efficiency and robustness in solving TRBDO problems.

关键词： reliability-based design optimization dynamic uncertainties time-dependent reliability analysis decoupled method sequential optimization and reliability analysis

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Enhancing solid-state lithium metal battery performance via indium-based modification of electrolytes and lithium metal surfaces:mechanistic insights and optimization

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Science China Chemistry 2025年第3期68卷 1144-1158页

作者： Zhongkai Wu Chen Liu Ziling Jiang Lin Li Siwu Li Chaochao Wei Qiyue Luo Xia Chen Long Zhang Shijie Cheng Chuang Yu State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China School of Chemistry and Chemical Engineering Huazhong University of Science and TechnologyWuhan 430074China Interdisciplinary Research Center of Smart Sensors Academy of Advanced Interdisciplinary ResearchXidian UniversityXi’an 710126China College of Physics and Energy Fujian Normal UniversityFuzhou 350117China

Argyrodite-based solid-state lithium metal batteries exhibit significant potential as next-generation energy storage ***,their practical applications are constrained by the intrinsic poor stability of argyrodite towards Li metal and exposure to air/***,an indium-involved modification strategy is employed to address these *** optimized doping yields a high Li-ion conductivity of 7.5 mS cm^(-1)for Li_(5.54)In_(0.02)PS_(4.47)O_(0.03)Cl_(1.5)electrolyte,accompanied by enhanced endurance against air/moisture and bare Li *** retains 92.0%of its original conductivity after exposure to air at a low dew point of-60℃in dry ***,a composite layer comprising Li-In alloy and Li F phases is generated on the surface of lithium metal anode via the reaction between InF_(3)and molten *** layer effectively mitigates Li dendrite growth by creating a physical barrier from the robust LiF phase,while the Li-In alloy induces uniform Li-ion deposition and accelerates Li transport dynamics across the interphase between the solid electrolyte/Li ***,the In-doped electrolyte facilitates the in-situ generation of Li-In alloy within its voids,reducing local current density and further inhibiting lithium dendrite ***,the combination of the Li_(5.54)In_(0.02)PS_(4.47)O_(0.03)Cl_(1.5)electrolyte and the InF_(3)@Li anode provides exceptional electrochemical performances in both symmetric cells and solid-state lithium metal batteries across different operating ***,the LiNbO_(3)@LiNi_(0.7)Co_(0.2)Mn_(0.1)O_(2)/Li_(5.54)In_(0.02)PS_(4.47)O_(0.03)Cl_(1.5)/InF_(3)@Li cell delivers a high discharge capacity of 167.8 mAh g^(-1)at 0.5 C under 25℃and retains 80.0%of its initial value after 400 *** work offers a viable strategy for designing functional interfaces with enhanced stability for sulfide-based solid-state lithium batteries.

关键词： Li_(5.5)PS_(4.5)Cl_(1.5)solid electrolyte In_(2)O_(3)dual-doping InF_(3)surface-modification chemical/electrochemical stability electrochemical performance

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Manipulating Interfacial Stability via Preferential Absorption for Highly Stable and Safe 4.6 V LiCoO_(2) Cathode

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Nano-Micro Letters 2025年第8期17卷 95-110页

作者： Long Chen Xin He Yiqing Chen Youmin Hou Yujie Zhang Kangli Wang Xinping Ai Yuliang Cao Zhongxue Chen Key Laboratory of Hydraulic Machinery Transients Ministry of EducationSchool of Power and Mechanical EngineeringWuhan UniversityWuhan 430072People’s Republic of China State Key Laboratory of Advanced Electromagnetic Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074People’s Republic of China Hubei Key Laboratory of Electrochemical Power Sources College of Chemistry and Molecular SciencesWuhan UniversityWuhan 430072People’s Republic of China

Elevating the upper cutoff voltage to 4.6 V could effec-tively increase the reversible capacity ofLiCoO_(2)(LCO)cathode,whereas the irreversible structural transition,unstable electrode/electrolyte interface and potentially induced safety hazards severely hinder its industrial *** a robust cathode/electrolyte interface film by electrolyte engineer-ing is one of the efficient approaches to boost the performance of high-voltage LCO(HV-LCO);however,the elusive interfacial chemistry poses substantial challenges to the rational design of highly compatible ***,we propose a novel electrolyte design strategy and screen proper solvents based on two factors:highest occupied molecular orbital energy level and LCO absorption ***(2,2,2-trifluoroethyl)phosphate is determined as the optimal solvent,whose low defluorination energy barrier significantly promotes the construction of LiF-rich cathode/electrolyte interface layer on the surface of LCO,thereby eventually suppresses the phase transition and enhancesLi+diffusion *** rationally designed electrolyte endows graphite||HV-LCO pouch cells with long cycle life(85.3%capacity retention after 700 cycles),wide-temperature adaptability(-60–80℃)and high safety(pass nail penetration).This work provides new insights into the electrolyte screening and rational design to constructing stable interface for high-energy lithium-ion batteries.

关键词： Electrolyte design LiF-rich interface Wide-temperature High-safe 4.6 V LCO

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Multi-objective Optimization Method of arc Armature Based on Anti-Transition 19th

Multi-objective Optimization Method of arc Armature Based on...

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19th Annual Conference of China Electrotechnical Society, ACCES 2024

作者： Gu, Anbang Xia, Shengguo Key Laboratory of Pulsed Power Technology Ministry of Education Huazhong University of Science and Technology Wuhan China State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan China

ISBN: (纸本)9789819608966

Three optimization objectives are proposed to suppress transition during the armature launching process: the deviation rate of the current density distribution on the armature rail’s contact surface under steady-state current, the deviation rate of the current density distribution on the throat’s surface under steady-state current, and the deviation degree of the overfill contact pressure’s center of action. The NSGA-2 multi-objective optimization algorithm is used to optimize the armature structure. Firstly, the random response surface of the optimization objectives is established in a large range of armature geometrical parameters, and then the range of values of armature geometrical parameters is obtained according to the limitations of the armature structure in the actual problem, and then the optimization of the armature structure is carried out and the optimal compromise solution is screened out in this range. The simulation results show that the optimized armature, compared with the benchmark armature, has a more centered distribution of the overfill contact pressure on the contact surface, smaller current peaks on the contact surface of the armature rails during the launching process, and lower maximum temperature at the throat, which indicates that the optimized armature is more capable of suppressing the armature start-up phase transition, the magnetic saw of the throat transition, and the current falling-edge phase transition. © Beijing Paike Culture Commu. Co., Ltd. 2025.

关键词： Multiobjective optimization

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Facile synthesis of hybridized Co/Fe-ZIF under solvent-free conditions for efficient oxidation evolution reaction electrocatalysis

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Nano Research 2025年第1期18卷 362-372页

作者： YinSheng Xu Zihan Li Zhonghan Cheng Somboon Chaemchuen State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Department of Chemical Engineering Faculty of EngineeringMahidol UniversityNakhon Pathom 73170Thailand State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China

Developing non-noble catalyst synthesis under green conditions with efficient electrochemical reactions is a challenging task in green energy *** meet this challenge,the synthesis of hybridized non-noble cobalt and iron in the zeolitic-imidazole framework(Co/Fe-ZIF)through a solid-state thermal(SST)method is *** the obtained Co/Fe-ZIF structure,iron atoms are uniformly dispersed and randomly hybridized with primary cobalt atoms and imidazole linker,similar to the structure of *** hybridized Co/Fe-ZIF shows potential as an electrocatalyst for oxidation evolution reaction(OER).The optimal iron-incorporating catalyst,Co/Fe_(0.2)-ZIF,demonstrates remarkable performance with a minimized overpotential of 285 mV at the current density(j)of 10 mA·cm^(-2)in 1 M *** synergistic effect of iron and cobalt ions on the catalyst provides active sites that bind to intermediate(OOH^(*))more strongly and facilitate high electron charge transfer,enhancing efficient ***,the synergistic Co/Fe_(0.2-)ZIF catalyst demonstrates excellent durable reaction time compared to non-iron catalyst(ZIF-67)and conventional catalyst(RuO_(2)).

关键词： zeolitic-imidazole frameworks solid-state thermal method solvent-free synthesis electrocatalyst oxidation evolution reaction

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A comprehensive review of deactivation and modification of selective catalytic reaction catalysts installed in cement kilns

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Journal of Environmental Sciences 2025年第2期148卷 451-467页

作者： Yang Zheng Yi Xing Guoliang Li Jiajia Gao Rui Li Qi Liu Tao Yue School of Energy and Environmental Engineering University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

After the ultralow emission transformation of coal-fired power plants,cement production became China’s leading industrial emission source of nitrogen *** gas dust contents at the outlet of cement kiln preheaters were as high as 80-100 g/m^(3),and the calcium oxide content in the dust exceeded 60%.Commercial V_(2)O_(5)(-WO_(3))/TiO_(2) catalysts suitable for coal-fired flue gas suffer from alkaline earth metal Ca poisoning of cement kiln flue *** studies have also identified the poisoning of cement kiln selective catalytic reaction(SCR)catalysts by the heavy metals lead and *** of the poisoning process is the primary basis for analyzing the catalytic *** review summarizes and analyzes the SCR catalytic mechanism and chronicles the research progress concerning this poisoning *** on the catalytic and toxification mechanisms,it can be inferred that improving the anti-poisoning performance of a catalyst enhances its acidity,surface redox performance-active catalytic sites,and shell layer *** data provide support in guiding engineering practice and reducing operating costs of SCR ***,future research directions for SCR denitrification catalysts in the cement industry are *** study provides critical support for the development and optimization of poisoning-resistant SCR denitrification catalysts.

关键词： Cement Flue Gas NH_(3)-SCR CaO Poisoning Mechanism Anti-poisoning Modification

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Designing carboxymethyl cellulose based hydrogel electrolyte membranes enhanced by inorganic nanoparticle toward stable zinc anode

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Green Energy & Environment 2025年第3期10卷 537-550页

作者： Xiangye Li Yuan Li Yu Jiang Dahui Wang Fen Ran State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals Department of Polymeric Materials EngineeringSchool of Material Science and EngineeringLanzhou University of TechnologyLanzhou730050China

Aqueous zinc metal batteries have garnered substantial attention ascribing to affordability,intrinsic safety,and environmental benignity Nevertheless,zinc metal batteries yet are challenged with potential service life issues resulted from dendrites and side *** this paper,a strategy of nanoparticles doped hydrogel is proposed for constructing carboxymethyl cellulose/graphite oxide hybrid hydrogel electrolyte membranes with exceptional ionic conductivity,anti-swelling property,and simultaneously addressing the dendrites and parasitic *** pivotal functions of the carboxymethyl cellulose/graphite oxide hydrogel electrolyte in mitigating hydrogen evolution and fostering accelerated Zn deposition have been elucidated based on principles of thermodynamic and reaction *** carboxymethyl cellulose/graphite oxide hydrogel electrolyte endows exceptional cycling longevity (800 h at 1 mA cm^(-2)/1 mAh cm^(-2)) for Znjj Zn battery,as well as high Coulombic efficiency for Znjj Cu battery (averagely 99.14%within 439 cycles at 1 mA cm^(-2)/1 mAh cm^(-2)).The assembled Znjj NH_(4)V_(4)O_(10)battery delivers a high reversible specific capacity of 328.5 mAh g^(-1)at 0.1 A g^(-1).Moreover,the device of Znjj NH_(4)V_(4)O_(10)pouch battery remains operational under severe conditions like bending and *** work provides valuable reference in developing inorganic nanoparticle hybrid hydrogel electrolyte for realizing high-performance zinc metal batteries.

关键词： Carboxymethyl cellulose Graphite oxide Hydrogel electrolyte Anti-swelling

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An Iterative Tuning Method for Feedforward Control of Parallel Manipulators Considering Nonlinear Dynamics

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Chinese Journal of Mechanical engineering 2025年第1期38卷 295-305页

作者： Xiaojian Wang Jun Wu Beijing Key Laboratory of Transformative High-end Manufacturing Equipment and Technology Tsinghua UniversityBeijing 100084China State Key Laboratory of Tribology in Advanced Equipment and Institute of Manufacturing Engineering Department of Mechanical EngineeringTsinghua UniversityBeijing 100084China

Feedforward control is one of the most effective control techniques to increase the robot’s tracking ***,most of the dynamic models used in the feedforward controllers are linearly simplified such that the nonlinear and time-varying characteristics of dynamics in the workspace are *** this paper,an iterative tuning method for feedforward control of parallel manipulators by taking nonlinear dynamics into account is *** on the robot rigid-body dynamic model,a feedforward controller considering the dynamic nonlinearity is *** iterative tuning method is given to iteratively update the feedforward controller by minimizing the root mean square(RMS)of the joint errors at each *** effectiveness and extrapolation capability of the proposed method are validated through the experiments on a 2-DOF parallel *** research proposes an iterative tuning method for feedforward control of parallel manipulators considering nonlinear dynamics,which has better extrapolation capability in the whole workspace of manipulators.

关键词： Parallel manipulator Dynamic model Feedforward control Iterative learning control Parameter design

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A numerical method for predicting bursting strength of composite rocket motor case considering filament winding process-induced stress

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Chinese Journal of Aeronautics 2025年第2期38卷 505-518页

作者： Jiqiu LIANG Fei ZHAO Dan WU Anxin DING Hubei Key Laboratory of Advanced Aerospace Propulsion Technology Wuhan 430040China System Design Institute of Hubei Aerospace Technology Academy Wuhan 430040China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

A numerical method to predict the bursting strength of filament wound composite rocket motor case is proposed *** method can evaluate the longitudinal stress evolution of each composite layer as impregnated filaments with fiber tension are wound layer by layer,and consider the effects of accumulated stress and deformation during filament winding on the bursting strength of composite ***∅520 mm composite cases as a case study,the filament-winding-process-induced stress and deformation as well as progressive damage behavior are numerically predicted,followed by a comparison with experimental *** numerical results show that the predicted bursting pressures for composite cases manufactured on the mandrels with and without a flexible component are 14.20 MPa and 21.40 MPa,*** values exhibit slight deviation from the measured pressures of 13.50 MPa and 21.57 ***,the predicted damage locations,situated respectively in the dome and cylinder,agree well with the experimental *** observations indicate that use of flexible component reduces the load-bearing capacity of the ***,it validates the reliability and accuracy of the proposed numerical method in predicting the bursting strength of composite cases.

关键词： Composite case Fiber tension Bursting strengt hProgressive damage analysis Filament winding

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Insight into slag-enhanced thermal desorption at the organo-mineral interface of clay soils

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Pedosphere 2025年第2期35卷 312-324页

作者： Juan ZHANG Xin WANG Xinyue DU Shukai FAN Hui LIU Minghua ZHANG State Key Laboratory of Advanced Metallurgy School of Metallurgical and Ecological Engineering University of Science and Technology Beijing State Key Laboratory of Mineral Processing Environmental Engineering InstituteBGRIMM Technology Group Shandong Institute of Geophysical & Geochemical Exploration College of Agricultural and Environmental Sciences University of California

Multiple active components in steel slags can optimize soil texture and catalyze the thermal desorption of refractory organic pollutants,especially polycyclic aromatic hydrocarbons （PAHs）.In this study,a safety and risk assessment was conducted on toxic metals present in collected steel slags,and the refining slag with a high content of free-Ca O from the XG iron and steel plant （XGRS） was selected and used to regulate the plasticity index （PI） of clay *** the clay soil with high liquid limit and high plasticity （CH）,the PI reduced from 34.3% to 24.8% with steel slags at an addition ratio of 10%（mass percent）,and for the clay soil with low liquid limit （CL）,the PI decreased from 22.8% to 16.5%,resulting in silt soil with optimal thermal *** thermal removal efficiency of PAHs in CH decreased from 81.9% to 74.0% at 350°C as the soil water content increased from 0 to 150 g kg-1,due to the hydration and swelling of clay minerals and the heat loss associated with dehydroxylation and *** efficiency further decreased to 68.7% using 2%（mass percent） Ca O as an additive due to the delayed dehydr（oxyl）ation of clay minerals and enhanced aromatization of soil organic *** contrast,addition of 2% high-content titania-bearing slag （HTBS） enhanced the removal efficiency of high-ring PAHs,with the efficiency increasing for 5-ring from 52.6% to 59.7% and for 6-ring from 76.6% to 81.8%.This is due to the presence of amorphous TiO2and crystalline CaTiO3in HTBS,which can degrade water to produce reactive oxygen *** 2% XGRS addition facilitated the complete removal of PAHs by air-supplemented lattice oxygen,leading to the oxidation of C–C bonds in CH to C–O,C=O,and O–C=O functional *** study provides valuable insights into the use of additives to enhance the thermal remediation of PAH-contaminated clay soils via activating oxygen species and oxidizing C–C bonds in organo-mineral complexes within clay soils.

关键词： catalytic degradation clay dehydration origanic pollutants polycyclic aromatic hydrocarbons reactive oxygen species remediation steel slags

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