云南高校图书馆联盟文献共享服务平台- 国家自然科学基金(51221004)

国家自然科学基金(51221004): 作品数：52被引量：185H指数：7; 导出分析报告; 相关作者：廖湘平龚国芳周华杨华勇顾临怡更多>>; 相关机构：浙江大学国网浙江省电力公司电力科学研究院湖南城市学院更多>>; 相关期刊：《Journal of Wuhan University of Technology(Materials Science)》《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》《高分子学报》《Frontiers of Information Technology & Electronic Engineering》更多>>; 相关主题：英文DEVICE油膜故障检测鲁棒观测器更多>>; 相关领域：自动化与计算机技术机械工程金属学及工艺交通运输工程更多>>

A Numerical Method for Extrication Characteristics of TBM Cutter-Head with the HVC被引量：1: 《Chinese Journal of Mechanical Engineering》2019年第6期17-25,共9页Huasheng Gong Haibo Xie Huayong Yang; Supported by Major State Basic Research Development Program of China(973 Program,Grant No.2013CB035400);National Natural Science Foundation of China(Grant Nos.51275451,51575476);Science Fund for Creative Research Groups of National Natural Science Foundation of China(Grant No.51221004); Achieving highly efficient extrication of the tunnel boring machine(TBM)cutter-head driving system from the collapsed surrounding rock has become a key problem globally,and significant effort has been directed to impr...; 关键词：TBM Hydro-viscous clutch Explicit pressure equation Extrication strategy

Evaluation of the hemolysis and fluid dynamics of a ventricular assist device under the pulsatile flow condition被引量：1: 《Journal of Hydrodynamics》2019年第5期965-975,共11页Huan Li Zhe Gou Feng Huang Xiao-dong Ruan Wen-wei Qian Xin Fu; Project supported by the National Natural Science Foundation of China(Grant No.51505455);the Science Fund for Creative Research Groups of the National Natural Science Foundation of China(Grant No.51221004).; When the rotary blood pumps are used as ventricular assist devices,the pump flow rate will have a pulsatile component even at a constant impeller rotational speed due to the remaining beating of the natural heart.Howe...; 关键词：VENTRICULAR assist DEVICES HEMOLYSIS PULSATILE flow CARDIOVASCULAR system NUMERICAL simulation

非接触式定位隔振平台机电联合仿真分析被引量：1: 《浙江大学学报（工学版）》2019年第1期146-157,共12页李劲林王佳斌何闻; 国家自然科学基金创新研究群体资助项目(51221004);国家重点研发计划资助项目(2016YFB0500803);国家重大科学仪器设备开发专项资金资助项目(2013YQ470765); 为了研究工作于空间微重力环境的非接触式定位隔振平台的工作性能,利用机电联合仿真方法对平台的6自由度定位和微振动隔振功能进行仿真分析.介绍所设计非接触式定位隔振平台的工作原理,其中平台的激励单元、位置测量单元和加速度测量单...; 关键词：微振动非接触式定位隔振联合仿真

中等时间尺度下弹道明胶的线性黏弹性模型: 《高分子材料科学与工程》2018年第12期95-100,共6页马小林范毓润; 国家自然科学基金创新研究组资助项目(51221004); 在不同时间尺度下,明胶表现出不同的黏弹性行为。应用蠕变和应力松弛模式研究质量分数为10%的弹道明胶在中等时间尺度下的线性黏弹性行为。低剪切速率下的连续加载-卸载实验显示,在常规感知的时间尺度下(～1min)弹道明胶接近完全弹性体...; 关键词：弹道明胶老化行为中等时间尺度线性黏弹性 BURGERS模型蠕变与应力松弛

主动式水下拖曳升沉补偿系统的非线性控制被引量：5: 《中南大学学报（自然科学版）》2018年第3期612-617,共6页李世振魏建华胡波李盛茂; 国家自然科学基金资助项目(51221004)~~; 针对主动式水下拖曳升沉补偿系统的非线性时变负载特性,设计一种基于扩展扰动观测器的非线性鲁棒位移控制器。在该控制系统中,将扰动负载分成时变的未知负载与可以建模的负载2部分,并考虑系统动力学的非线性特性,采用滑模控制技术补偿...; 关键词：主动升沉补偿扩展扰动观测器非线性控制位移控制水下拖曳系统

Effect of Crystallographic Orientation on Quenching Stress during Martensitic Phase Transformation of Carbon Steel Plate被引量：1: 《Journal of Wuhan University of Technology(Materials Science)》2017年第5期1213-1219,共7页潘龙何闻 GU Bangping; Funded by the Creative Research Groups of National Natural Science Foundation of China(No.51221004);the National Natural Science Foundation of China(Nos.51375443,50675200); During quenching, the residual stresses are affected by the crystallographic orientation of martensite, because the nonuniform thermal stresses affect the crystallographic orientation of the lathshaped martensite and ...; 关键词：residual stresses martenstic transformation crystallographic orientation transformation induced plasticity expansion coefficient

Quantitative feedback controller design and test for an electro-hydraulic position control system in a large-scale reflecting telescope被引量：1: 《Frontiers of Information Technology & Electronic Engineering》2017年第10期1624-1634,共11页Xiong-bin PENG Guo-fang GONG Hua-yong YANG Hai-yang LOU Wei-qiang WU Tong LIU; supported by the National Basic Research Program(973)of China(No.2013CB035400);the National High-Tech R&D Program(863)of China(No.2012AA041803);the National Natural Science Foundation of China(No.51221004); For the primary mirror of a large-scale telescope, an electro-hydraulic position control system(EHPCS) is used in the primary mirror support system. The EHPCS helps the telescope improve imaging quality and requires a...; 关键词：Large-scale reflecting telescope Quantitative feedback theory Electro-hydraulic position control system Micron-level position control capability System identification Robust stability

Modeling and loading compensation of a rotaryvalve-controlled pitch system for wind turbines: 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2017年第9期718-727,共10页Xiu-xing YIN Yong-gang LIN Wei LI; supported by the Science Fund for Creative Research Groups of the National Natural Science Foundation of China(No.51221004);the National Natural Science Foundation of China(No.51275448);the Fundamental Research Funds for the Central Universities(No.2015QNA4005),China; A rotary valve-controlled pitch system is proposed to regulate the generator power and smooth power fluctuationsfor a wind turbine. Design details and dynamic modeling of this pitch system are presented and analyzed. ...; 关键词：Wind TURBINE PITCH system ROTARY VALVE LOADING COMPENSATION

弹道明胶老化初级阶段的模型被引量：2: 《高分子学报》2017年第8期1382-1388,共7页马小林范毓润; 国家自然科学基金(基金号51221004)创新研究组资助项目; 用流变震荡模式研究了10 wt%浓度的弹道明胶在冷却和等温下的老化行为.对明胶从sol-gel点冷却到某个目标温度的过程,通过不同冷却速率的实验,建了一个弹性模量与温度的线性关系.不同温度下明胶的等温老化实验表明,弹性模量-时间曲线具...; 关键词：弹道明胶冷却模型等温老化模型二级反应动力学老化速率常数

应用于数字变量马达的高速开关阀被引量：2: 《浙江大学学报（工学版）》2016年第8期1551-1560,共10页胡小东顾临怡张范蒙; 国家自然科学基金资助的国家重点实验室创新基金资助项目(51221004); 为了研制满足数字变量马达需要的"高频响、大流量,低开阀压差,低节流损耗"高速开关阀,设计一种新型的二位三通滑阀结构的高速开关阀,采用阀套运动的结构来减小液动力有效的提升阀的开关速度,采用中位死区的结构来实现预降压和预升压以...; 关键词：高速开关阀高频响大流量阀套运动中位死区低开阀压差低节流损耗

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