首页期刊导航|浙江大学学报（英文版）（A辑：应用物理和工程）
期刊信息/Journal information
浙江大学学报（英文版）（A辑：应用物理和工程）
浙江大学学报（英文版）（A辑：应用物理和工程）

杨卫

月刊

1673-565X

jzus_zzy@zju.edu.cn

0571-87952783；87952331

310027

杭州浙大路38号浙大学报英文版编辑部

浙江大学学报（英文版）（A辑：应用物理和工程）/Journal Journal of Zhejiang University Science A：Applied Physics & EngineeringCSCDCSTPCD北大核心EISCI
查看更多>>JZUS-A:《浙大学报(英文版)(A辑：应用物理和工程)》Journal of Zhejiang University SCIENCE A focuses on Applied Physics & Mathematics, Civil Engineering, Environmental, Energy, Materials, Chemical Engineering, Mechanical, EEE, Computer & Information Sciences. JZUS-A has been indexed & abstracted by Science Citation Index-Expanded (SCI-E), Ei Compendex, CA, SA, AJ, ZM, CSA (AHTD/ AI/ AP/ ASF/ CDCD/ CE/ CI/ CIS/ Corr/ C-WC/ EC/ EMA/ MBF/ ESPM/ MD/ MG/ OA/ OT/ SS/ WR). JZUS-A welcomes the high-quality research articles, reviews, science letters, report, news & views etc from all over the world, and also welcomes your online submission at or by to get more information about JZUS-A, thanks.
正式出版
收录年代

    Recent progress in the development of dielectric elastomer materials and their multilayer actuators

    Shengchao JIANGJunbo PENGLvting WANGHanzhi MA...
    183-205页
    查看更多>>摘要：Dielectric elastomers (DEs) have emerged as one of the most promising artificial muscle technologies, due to their exceptional properties such as large actuation strain, fast response, high energy density, and flexible processibility for various configurations. Over the past two decades, researchers have been working on developing DE materials with improved properties and exploring innovative applications of dielectric elastomer actuators (DEAs). This review article focuses on two main topics: recent material innovation of DEs and development of multilayer stacking processes for DEAs, which are important to promoting commercialization of DEs. It begins by explaining the working principle of a DEA. Then, recently developed strategies for preparing new DE materials are introduced, including reducing mechanical stiffness, increasing dielectric permittivity, suppressing viscoelasticity loss, and mitigating electromechanical instability without pre-stretching. In the next section, different multilayer stacking methods for fabricating multilayer DEAs are discussed, including conventional dry stacking, wet stacking, a novel dry stacking method, and micro-fabrication-enabled stacking techniques. This review provides a comprehensive and up-to-date overview of recent developments in high-performance DE materials and multilayer stacking methods. It highlights the progress made in the field and also discusses potential future directions for further advancements.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    A method for support stiffness failure identification in a steel spring floating slab track of urban railway: a case study in China

    Junyuan ZHENGCaiyou ZHAODuojia SHIPing WANG...
    206-222页
    查看更多>>摘要：The extensive use of steel spring floating slab tracks has effectively addressed the challenge of alleviating the environmental vibrations induced by urban rail transit systems. However, under the combined action of train dynamic loads and complex environmental factors, problems, such as the fracture of steel spring vibration isolators and suspension vibrations induced by the uneven settlement of the base, often occur. The failure of isolator support stiffness is often hidden in its early stages and is challenging to identify by conventional detection methods. At the same time, it will aggravate the wheel-rail interaction, accelerate the deterioration of track structure, and even affect the driving safety. This study first establishes a detailed coupled train-floating slab track-foundation analytical model. Then the influence of the vibration isolator support stiffness failure on the dynamic indices of the floating slab track system response is analyzed. A set of defect identification methods that can detect the number of failed steel springs, severity of damage, and their location is proposed. Finally, an intelligent monitoring system for support stiffness of floating slab track is built by combining the density-based spatial clustering of applications with noise algorithm and statistical data analysis and is applied to a rail line in southern China. During a three-year monitoring campaign, a suspension failure and a fracture of a steel spring were each successfully detected and detailed failure information was obtained. Field investigation results were consistent with the damage identification results. After repair, the track structure dynamic response returned to the average pre-damage level and further deterioration had been arrested. The proposed damage identification methods and monitoring system provide an approach for intelligent identification of track structure support stiffness failures.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Non-uniform thermal behavior of single-layer spherical reticulated shell structures considering time-variant environmental factors: analysis and design

    Wucheng XUXiaoqing ZHENGXuanhe ZHANGZhejie LAI...
    223-237页
    查看更多>>摘要：Contrary to conventional design methods that assume uniform and slow temperature changes tied to atmospheric conditions, single-layer spherical reticulated shells undergo significant non-uniform and time-variant temperature variations due to dynamic environmental coupling. These differences can affect structural performance and pose safety risks. Here, a systematic numerical method was developed and applied to simulate long-term temperature variations in such a structure under real environmental conditions, revealing its non-uniform distribution characteristics and time-variant regularity. A simplified design method for non-uniform thermal loads, accounting for time-variant environmental factors, was theoretically derived and validated through experiments and simulations. The maximum deviation and mean error rate between calculated and tested results were 6.1 ℃ and 3.7％, respectively. Calculated temperature fields aligned with simulated ones, with deviations under 6.0 ℃. Using the design method, non-uniform thermal effects of the structure are analyzed. Maximum member stress and nodal displacement under non-uniform thermal loads reached 119.3 MPa and 19.7 mm, representing increases of 167.5％ and 169.9％, respectively, compared to uniform thermal loads. The impacts of healing construction time on non-uniform thermal effects were evaluated, resulting in construction recommendations. The methodologies and conclusions presented here can serve as valuable references for the thermal design, construction, and control of single-layer spherical reticulated shells or similar structures.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Development of underwater electric manipulator based on interventional autonomous underwater vehicle (AUV)

    Xiaohui HUJiawang CHENHang ZHOUZiqiang REN...
    238-250页
    查看更多>>摘要：In applications such as marine rescue, marine science, archaeology, and offshore industries, autonomous underwater vehicles (AUVs) are frequently used for survey missions and monitoring tasks, with most operations being performed by manned submersibles or remotely operated vehicles (ROVs) equipped with robotic arms, as they can be operated remotely for days without problems. However, they require expensive marine vessels and specialist pilots to operate them. Scientists exploring oceans are no longer satisfied with the use of manned submersibles and ROVs. There is a growing desire for seabed exploration to be performed using smarter, more flexible, and automated equipment. By improving the field operation and intervention capability of AUVs, large-scale and long-range seafloor exploration and sampling can be performed without the support of a mother ship, making it a more effective, economical, convenient, and rapid means of seafloor exploration and sampling operations, and playing a critical role in marine resource exploration. In this study, we explored the integration technology of underwater electric robotic arms and AUVs and designed a new set of electric manipulators suitable for water depths greater than 500 m. The reliability of the key components was analyzed by finite element analysis and, based on the theory of robot kinematics and dynamics, simulations were performed to verify the reliability of the key components. Experiments were conducted on land and underwater, trajectory tracking experiments were completed, and the experimental data in air and water were compared and analyzed. Finally, the objectives for further research on the autonomous control of the manipulator underwater were proposed.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Churning loss characteristics of a wet three-phase high-speed reluctance motor

    Zhenzhou ZHANGMingzhu DAIChenchen ZHANGYi CHEN...
    251-267页
    查看更多>>摘要：With the increasing requirements of electro-hydrostatic actuators (EHAs) for power, volume, and pressure, there is a growing tendency in the industry to combine the motor and pump to form a so-called 'motor pump' to improve the integration. In this paper, a novel structure for a wet three-phase high-speed reluctance motor pump is proposed, which can further improve integration by removing the dynamic seal on the pump shaft, thereby avoiding the problems of dynamic seal wear and oil leakage and improving heat dissipation under high-speed working conditions. However, after the motor is wetted, the churning loss caused by immersion of the rotor in the oil causes additional fluid resistance torque. Based on fundamental fluid mechanics, an analytical model of the churning torque of a wet motor was established. To verify the accuracy of the analytical model, a simulation model of churning loss was established based on computational fluid dynamics (CFD), and the churning torque and flow field state were analyzed. Finally, an experimental prototype was designed and manufactured, and a test bench for churning loss was built. The oil churning torque was measured at different speeds and temperatures. The results from the analytical, simulation, and experimental models agreed well. The experimental results validated the analytical model and CFD simulation. This research provides a practical method for calculating the churning loss and serves as guidance for future optimization of churning loss reduction.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Synthesis and characterization of three new solid polyoxometalates based on Wells-Dawson-derived sandwich-type polyanions[Co4(H2O)2(P2W15O56)2]16-

    Jijie YEXuan XUChuande WU
    268-274,后插1-后插6页
    查看更多>>摘要：Three polyoxometalate-based hybrid coordination materials, [Co8(H2O)34(pz)2{Co4(H2O)2P4W30O112}]·16H2O (compound 1), [H3O]4[Co6(H2O)22(pz)2{Co4(H2O)2P4W30O112}]·21H2O (compound 2), and [H3O]4[Co6(H2O)22{Co4(H2O)2P4W30O112}]·29H2O (compound 3) (pz=pyrazine), were built from the linkage of [Co4(H2O)2(P2W15O56)2]16- (abbreviated as {Co4P4W30}) polyanions and pz and/or cobalt(Ⅱ) cations. Although compounds 1 and 2 consisted of the same components, their lamellar networks were quite different. The inorganic lamellar network in compound 3 was constructed by connecting {Co4P4W30} units with cobalt(Ⅱ) cations. This work demonstrates that the coordination modes of {Co4P4W30} are very sensitive to synthesis conditions, while the ring-belt tetrametals are easily substituted by different transition metal cations under mild reaction conditions.
      原文链接:
    • NETL
    • NSTL
    • 万方数据