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Xi-hua Li,Xiao-hong Chen
《工程管理前沿(英文)》 2015年 第2卷 第3期 页码 266-276 doi: 10.15302/J-FEM-2015048
关键词: multi-criteria decision making trapezoidal intuitionistic fuzzy numbers Choquet integral fuzzy measure aggregation operator
Mesoscale fabrication of a complex surface for integral impeller blades
Xibin WANG,Tianfeng ZHOU,Lijing XIE,Li JIAO,Zhibing LIU,Zhiqiang LIANG,Pei YAN
《机械工程前沿(英文)》 2017年 第12卷 第1期 页码 116-131 doi: 10.1007/s11465-017-0426-1
Integral impeller is the most important component of a mini-engine. However, the machining of a mesoscale impeller with a complex integral surface is difficult because of its compact size and high accuracy requirement. A mesoscale component is usually manufactured by milling. However, a conventional milling tool cannot meet the machining requirements because of its size and stiffness. For the fabrication of a complex integral impeller, a micro-ball-end mill is designed in accordance with the non-instantaneous-pole envelope principle and manufactured by grinding based on the profile model of the helical groove and the mathematical model of the cutting edge curve. Subsequently, fractal theory is applied to characterize the surface quality of the integral impeller. The fractal theory-based characterization shows that the completed mesoscale integral impeller exhibits a favorable performance in terms of mechanical properties and morphological accuracy.
关键词: mesoscale fabrication micro-milling tool mesoscale milling impeller blade
LU Yanjun, HEI Di, WANG Yuan, DAI Rong, LU Yanjun, LIU Heng, YU Lie
《机械工程前沿(英文)》 2008年 第3卷 第2期 页码 193-199 doi: 10.1007/s11465-008-0023-4
关键词: proportional integral bifurcation corresponding integral differential predictor-corrector mechanism
Investigation on the integral output power model of a large-scale wind farm
BAO Nengsheng, MA Xiuqian, NI Weidou
《能源前沿(英文)》 2007年 第1卷 第1期 页码 67-78 doi: 10.1007/s11708-007-0006-x
关键词: power model actual energy large-scale practical measurement
基于改进级联观测器的永磁同步电机智能分数阶积分滑模控制 Research Articles
肖玲斐1,2,马磊明3,黄欣浩1
《信息与电子工程前沿(英文)》 2022年 第23卷 第2期 页码 328-338 doi: 10.1631/FITEE.2000317
方俊,疏学明,袁宏永,郑昕
《中国工程科学》 2004年 第6卷 第1期 页码 37-43
对稳定线性热分层环境下湍浮力羽流无量纲积分方程首次采用数值解法进行求解,得出浮力通量、动量通量等参量在轴线上的变化规律以及羽流中性浮力点的高度和羽流最大上升高度。2种不同尺度空间及不同烟气羽流出口条件的实验表明,实际火灾烟气羽流最大上升高度与理论计算结果及文献经验公式相符,从而表明积分模型数值解的有效性,并为高大空间火灾烟气输运规律研究及探测技术发展提供了理论及实验依据。
Heavy vehicle dynamics with balanced suspension based on enveloping tire model
Yongjie LU, Shaopu YANG, Shaohua LI
《机械工程前沿(英文)》 2010年 第5卷 第4期 页码 476-482 doi: 10.1007/s11465-010-0120-z
关键词: heavy vehicle integral balanced suspension enveloping properties ride comfort road-friendliness
基于动态等值及数值积分灵敏度的快速紧急控制策略计算 Research Articles
Yi-fan GAO, Jian-quan WANG, Tan-nan XIAO, Dao-zhuo JIANG
《信息与电子工程前沿(英文)》 2019年 第20卷 第8期 页码 1119-1132 doi: 10.1631/FITEE.1700389
Qi-yan Tian, Jian-hua Wei, Jin-hui Fang, Kai Guo,jhfang@zju.edu.cn
《信息与电子工程前沿(英文)》 2016年 第17卷 第1期 页码 55-66 doi: 10.1631/FITEE.15a0160
勾莹,滕斌,宁德志
《中国工程科学》 2004年 第6卷 第7期 页码 75-80
应用边界积分方程方法研究了波浪与2个相连三维浮体的相互作用问题。计算中考虑了浮体相互间的水动力干涉,通过联立各浮体的运动方程以及运动连续条件求得浮体运动量。计算了2个铰连接漂浮方箱组成的系统,同Newman的结果进行了对比,当入射波的频率不在系统的自振频率附近时,结果与Newman的结果吻合良好,在自振频率附近时,铰接点处的转角和垂向位移都发生快速变化,而Newman未提到这一现象。
High-bandwidth nanopositioning via active control of system resonance
Linlin LI, Sumeet S. APHALE, Limin ZHU
《机械工程前沿(英文)》 2021年 第16卷 第2期 页码 331-339 doi: 10.1007/s11465-020-0619-x
关键词: nanopositioning stage high-bandwidth resonant mode control tracking control integral resonant control
TAO Wenquan, WU Junmei
《能源前沿(英文)》 2008年 第2卷 第1期 页码 71-78 doi: 10.1007/s11708-008-0001-x
关键词: inherent mechanism integral surface rectanglar longitudinal
Control algorithm of a servo platform
Shouyong XIE, Xiwen LI, Shuzi YANG, Mingjin YANG,
《机械工程前沿(英文)》 2010年 第5卷 第3期 页码 353-355 doi: 10.1007/s11465-010-0098-6
关键词: grey prediction proportional integral derivative (PID) control improved algorithm weight servo platform
Jian GONG
《工程管理前沿(英文)》 2017年 第4卷 第1期 页码 106-109 doi: 10.15302/J-FEM-2017001
关键词: super-high-rise building green building integral steel platform formwork system large volume concrete concrete pumped for super-high building deep and large foundation pit combined anterograde and retrograde methods digitalized construction technology
Convergence performance comparisons of PID, MRAC, and PID+MRAC hybrid controller
Dan ZHANG,Bin WEI
《机械工程前沿(英文)》 2016年 第11卷 第2期 页码 213-217 doi: 10.1007/s11465-016-0386-x
This study proposes a hybrid controller by combining a proportional-integral-derivative (PID) control and a model reference adaptive control (MRAC), which named as PID+MRAC controller. The convergence performances of the PID control, MRAC, and hybrid PID+MRAC are also compared. Through the simulation in Matlab, the results show that the convergence speed and performance of the MRAC and the PID+MRAC controller are better than those of the PID controller. In addition, the convergence performance of the hybrid control is better than that of the MRAC control.
关键词: proportional-integral-derivative (PID) control model reference adaptive control hybrid control convergence speed comparison
标题 作者 时间 类型 操作
Trapezoidal Intuitionistic Fuzzy Aggregation Operator Based on Choquet Integral and Its Application to
Xi-hua Li,Xiao-hong Chen
期刊论文
Mesoscale fabrication of a complex surface for integral impeller blades
Xibin WANG,Tianfeng ZHOU,Lijing XIE,Li JIAO,Zhibing LIU,Zhiqiang LIANG,Pei YAN
期刊论文
Stability and coupling dynamic behavior of nonlinear journal active electromagnetic bearing rotor system
LU Yanjun, HEI Di, WANG Yuan, DAI Rong, LU Yanjun, LIU Heng, YU Lie
期刊论文
Investigation on the integral output power model of a large-scale wind farm
BAO Nengsheng, MA Xiuqian, NI Weidou
期刊论文
Heavy vehicle dynamics with balanced suspension based on enveloping tire model
Yongjie LU, Shaopu YANG, Shaohua LI
期刊论文
High-bandwidth nanopositioning via active control of system resonance
Linlin LI, Sumeet S. APHALE, Limin ZHU
期刊论文
Numerical investigation and analysis of heat transfer enhancement in channel by longitudinal vortex based on field synergy principle
TAO Wenquan, WU Junmei
期刊论文