云南高校图书馆联盟文献共享服务平台- VARI

VARI: 作品数：166被引量：425H指数：11; 导出分析报告; 相关领域：一般工业技术医药卫生更多>>; 相关作者：魏俊伟郭万涛吴晓青赵渠森包建文更多>>; 相关机构：天津工业大学中航工业北京航空制造工程研究所中航复合材料有限责任公司东华大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家高技术研究发展计划天津市自然科学基金中央高校基本科研业务费专项资金更多>>

Energy and Buildings: 《建筑节能(中英文)》2025年第3期10-10,共1页; The present study develops a data-based compact model for the prediction of the fluid temperature evolution in district heating-and-cooling pipeline networks.This model is based on an existing“reduced-order model”by...; 关键词：District heating network Reduced-order model Variable mass flux Linear time-variant system Input-output relation

聚醚酰亚胺纳米纤维膜同步改善VARI成型CF/EP复合材料层间韧性和面内力学性能: 《材料工程》2025年第2期202-212,共11页阳泽濠宁博陈正国徐学宏刘卫平薛怿刘勇张辉俞建勇; 国家重点研发计划项目(2022YFB3709202);上海市科委科技创新行动计划高新技术领域项目(20511107300);上海市扬帆计划项目(19YF1417000);国家商用飞机制造工程技术研究中心创新基金项目(COMAC-SFGS-2020-1156)。; 研究了静电纺聚醚酰亚胺(PEI)纳米纤维膜对真空辅助树脂灌注(VARI)成型碳纤维/环氧树脂(CF/EP)复合材料层间韧性和面内力学性能的影响规律及其内在微观机制。研究发现,PEI纳米纤维膜与环氧树脂浸渍性良好且不影响树脂流动,适用于灌注温...; 关键词：碳纤维增强环氧树脂基复合材料真空辅助树脂灌注聚醚酰亚胺纳米纤维膜层间韧性面内力学性能

Study on Automated Placement Setting Agent and Placement Process of Dry Fiber: 《Transactions of Nanjing University of Aeronautics and Astronautics》2025年第1期112-122,共11页WANG Haoyu SUN Ying CHEN Haoran AN Luling DUAN Shaohua WANG Xianfeng; supported by Jiangsu Provincial Key Research and Development Program(No.BE2023014-4).; During the automated placement process of dry fibers,the positioning and fixation of dry fiber gauze belts are achieved by spraying setting agents.The amount of the setting agent is difficult to control when it is spr...; 关键词：automated placement technology of dry fiber room temperature setting agent preform preparation vacuum assisted resin infusion(VARI)molding

低成本VARI用中温固化环氧树脂基复合材料的制备及力学性能评价: 《宇航材料工艺》2024年第5期58-61,共4页张文卿孙波张晶尹亮左小彪李桂洋; 本文制备并评价了一种低成本真空辅助树脂灌注(VARI)成型工艺用的环氧树脂体系(V601)及其复合材料。本文通过DSC曲线、流变曲线、力学测试对该树脂基体及其复合材料进行评价。结果表明:V601环氧树脂体系可以在120℃/2 h固化制度下完全固...; 关键词：VARI 环氧树脂低成本复合材料力学性能

Research on heat dissipation characteristics of magnetic fluid bearings under multiple field coupling effects: 《High Technology Letters》2024年第3期263-270,共8页CHEN Liwen WU Weiying GAO Dianrong ZHAO Jianhua CUI Bingyan; the National Natural Science Foundation of China(No.52075468);the Natural Science Foundation of Hebei Province(No.E2020203052);the Key Scientific Research Projects of North China University of Technology(No.ZD-YG-202306-23);the Tangshan Science and Technology Project(No.23130201E).; This paper analyzes the sources of heat losses in magnetic fluid bearings,proposes various cou-pling relationships of physical fields,divides the coupled heat transfer surfaces while ensuring the continuity of heat fl...; 关键词：magnetic fluid bearing multi-physics field coupling multiple parameter varia-tion heat dissipation pattern

A model reduction approach for discrete-time linear time-variant systems with delayed inputs: 《Science China(Information Sciences)》2024年第4期193-213,共21页Ai-Guo WU Guang-Ren DUAN Yu WANG Jie ZHANG; supported by Shenzhen Science and Technology Program(Grant Nos.RCJC20210609104400005,KQTD20210811090146075);HIT Wuhu Robot Technology Research Institute(Grant No.HIT-CXY-CMP2-IARU-21-01);Science Center Program of National Natural Science Foundation of China(Grant No.62188101);National Natural Science Foundation of China(Grant No.62173112);Joint Funds of the National Natural Science Foundation of China(Grant No.U2013203)。; A model reduction approach is presented for discrete-time linear time-variant input-delayed systems.According to this proposed approach,a dynamical variable is constructed by taking advantage of the current state and ...; 关键词：reduction approach predictor-based feedback time-varying systems delayed input periodic system

圆环夹层复合材料VARI树脂充模模拟研究被引量：1: 《纤维复合材料》2023年第4期8-15,共8页陈斯吴海亮杨忠王威力娄小杰吴晓青; 夹层结构复合材料VARI成型过程中树脂流动较为复杂,容易产生干斑等缺陷。传统的试错法存在周期长、成本高等缺点,借助有限元软件研究其树脂流动过程是非常有必要的。本文采用有限元控制体积法模拟圆环型夹层结构复合材料的充模过程,计...; 关键词：夹层结构充模过程渗透率有限元模拟

高密肋结构整体壁板VARI成型技术研究: 《宇航材料工艺》2023年第4期59-64,共6页苏霞闫超李祎燊杨绍昌程龙; 高密肋壁板结构可采用真空辅助树脂渗透工艺(VARI)整体一次成型,但成型过程中存在加筋区预定型困难、树脂流动控制复杂等问题,导致制件尺寸精度和孔隙缺陷难以保证。为此,本文根据高密肋壁板多特征区域的特点,采用压实实验和注胶仿真模...; 关键词：加筋壁板整体成形 VARI

VARI工艺制备碳纤维/环氧树脂复合材料的耐腐蚀性能及断口形貌分析被引量：2: 《辽宁化工》2023年第6期808-811,共4页王琛琛王振彪常军张罡; 沈阳市科技局双百项目(项目编号:Y18-1-018)。; 研究了用真空辅助树脂灌注(VARI)成型工艺制备碳纤维复合材料的耐腐蚀性能,并对采用VARI工艺制备的碳纤维复合材料制件进行了断口形貌分析。结果表明:碳纤维树脂基复合材料的拉伸强度是395.93 MPa,弯曲强度是568.44 MPa,模拟海水中浸泡7...; 关键词：碳纤维/环氧树脂复合材料真空辅助树脂灌注成型工艺耐腐蚀性能断口形貌

Quantitative identification and the evolution characteristics of production–living–ecological space in the mountainous area:From the perspective of multifunctional land被引量：5: 《Journal of Geographical Sciences》2023年第4期779-800,共22页JI Zhengxin LIU Chao XU Yueqing SUN Minxuan WEI Hejie SUN Danfeng LI Yaoyao ZHANG Ping SUN Qiangqiang; National Natural Science Foundation of China,No.41971238,No.42101282,No.42001234。; Developed here is an integrated framework for identifying production–living–ecological space(PLES)quantitatively at grid scale from the perspective of multifunction land use,and 25 compound space types are classifie...; 关键词：land use function value evaluation production-living-ecological space spatial and temporal varia-tion Zhangjiakou

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