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Development of an analytical model to estimate the churning losses in high-speed axial piston pumps
《机械工程前沿(英文)》 2022年 第17卷 第2期 doi: 10.1007/s11465-021-0671-1
关键词: axial piston pump rotating parts high rotational speed churning losses drag torque
Effect of adjusted mesoscale drag model on flue gas desulfurization in powder-particle spouted beds
《化学科学与工程前沿(英文)》 2022年 第16卷 第6期 页码 909-920 doi: 10.1007/s11705-021-2100-8
关键词: adjusted mesoscale drag model particle image velocimetry water vaporization desulfurization reaction numerical simulation
New nonlinear stiffness actuator with predefined torque‒deflection profile
《机械工程前沿(英文)》 2023年 第18卷 第1期 doi: 10.1007/s11465-022-0721-3
关键词: compliant actuator nonlinear stiffness actuator nonlinear spring predefined torque−deflection profile
Analysis and characterization of wind-solar-constant torque spring hybridized model
Shantanu ACHARYA,Subhadeep BHATTACHARJEE
《能源前沿(英文)》 2014年 第8卷 第3期 页码 279-289 doi: 10.1007/s11708-014-0312-z
关键词: hybrid vertical axis wind turbine Stirling engine solar-thermal energy wind energy constant torque spring
Moulay Rachid DOUIRI, Mohamed CHERKAOUI
《能源前沿(英文)》 2013年 第7卷 第4期 页码 456-467 doi: 10.1007/s11708-013-0264-8
关键词: adaptive neuro-fuzzy inference system (ANFIS) artificial neural network direct torque control (DTC) fuzzy logic induction motor
Analytical model and finite element computation of braking torque in electromagnetic retarder
Lezhi YE,Guangzhao YANG,Desheng LI
《机械工程前沿(英文)》 2014年 第9卷 第4期 页码 368-379 doi: 10.1007/s11465-014-0314-x
An analytical model has been developed for analyzing the braking torque in electromagnetic retarder by flux tube and armature reaction method. The magnetic field distribution in air gap, the eddy current induced in the rotor and the braking torque are calculated by the developed model. Two-dimensional and three-dimensional finite element models for retarder have also been developed. Results from the analytical model are compared with those from finite element models. The validity of these three models is checked by the comparison of the theoretical predictions and the measurements from an experimental prototype. The influencing factors of braking torque have been studied.
关键词: electromagnetic retarder magnetic field distribution magnetic circuit finite element method
基于大气阻力的立方星编队飞行非线性规划控制算法 Article
Sheng-chao DENG, Tao MENG, Zhong-he JIN
《信息与电子工程前沿(英文)》 2017年 第18卷 第7期 页码 867-881 doi: 10.1631/FITEE.1500493
Abdelkarim AMMAR,Amor BOUREK,Abdelhamid BENAKCHA
《能源前沿(英文)》 2020年 第14卷 第4期 页码 836-849 doi: 10.1007/s11708-017-0444-z
关键词: induction motor direct torque control (DTC) space vector modulation (SVM) sliding mode control (SMC) sliding mode observer (SMO) dS1104
A total torque index for dynamic performance evaluation of a radial symmetric six-legged robot
Kejia LI, Xilun DING, Marco CECCARELL
《机械工程前沿(英文)》 2012年 第7卷 第2期 页码 219-230 doi: 10.1007/s11465-012-0320-9
This article focuses on the dynamic index and performance of a radial symmetric six-legged robot. At first the structure of the robot is described in brief and its inverse kinematics is presented. Then the dynamic model is formulated as based on the Lagrange equations. A novel index of total torque is proposed by considering the posture of the supporting legs. The new index can be used to optimize the leg’s structure and operation for consuming minimum power and avoiding unstable postures of the robot. A characterization of the proposed six-legged robot is obtained by a parametric analysis of robot performance through simulation using the presented dynamic model. Main influences are outlined as well as the usefulness of the proposed performance index.
F. BENCHABANE, A. TITAOUINE, O. BENNIS, K. YAHIA, D. TAIBI, A. GUETTAF
《能源前沿(英文)》 2012年 第6卷 第3期 页码 247-254 doi: 10.1007/s11708-012-0190-1
关键词: direct torque control (DTC) sensorless control extended Kalman filter (EKF) permanent magnet synchronous motor (PMSM) boost-rectifier
Method of internal 3D flow field numerical simulation for hydrodynamic torque converter
SHANG Tao, ZHAO Dingxuan, ZHANG Yuankun, GUO Xiangen, SHI Xiangzhong
《机械工程前沿(英文)》 2008年 第3卷 第1期 页码 86-90 doi: 10.1007/s11465-008-0012-7
关键词: velocity distribution calculation numerical simulation three-element centrifugal converter
Static balancing of planar articulated robots
Giuseppe QUAGLIA,Zhe YIN
《机械工程前沿(英文)》 2015年 第10卷 第4期 页码 326-343 doi: 10.1007/s11465-015-0355-9
Static balancing for a manipulator’s weight is necessary in terms of energy saving and performance improvement. This paper proposes a method to design balancing devices for articulated robots in industry, based on robotic dynamics. Full design details for the balancing system using springs are presented from two aspects: One is the optimization for the position of the balancing system; the other is the design of the spring parameters. As examples, two feasible balancing devices are proposed, based on different robotic structures: The first solution consists of linkages and springs; the other consists of pulleys, cross mechanisms and (hydro-) pneumatic springs. Then the two solutions are compared. Pneumatic, hydro-pneumatic and mechanical springs are discussed and their parameters are decided according to the requirements of torque compensation. Numerical results show that with the proper design using the methodology presented in this paper, an articulated robot can be statically balanced perfectly in all configurations. This paper therefore provides a design method of the balancing system for other similar structures.
关键词: robotics static balancing pneumatic spring mechanical spring torque compensation
周勇,李正军,马超,王小宁
《中国工程科学》 2014年 第16卷 第3期 页码 43-49
海洋二号(HY-2A)卫星要求微波散射计和微波辐射计实现扫描过程中所产生的力矩波动不能影响卫星姿态稳定度。这两个载荷使用永磁同步电动机矢量控制,对负载直接驱动;通过电机本体采用齿槽转矩优化设计、采用固定角度计时法消除量化误差、相电流测量误差控制、逆变器死区补偿等措施,抑制转矩波动。通过电机本体和控制策略进行联合精确模型仿真,分析了系统的转矩波动。由在轨遥测数据分析可得,实现了大惯量旋转部件的精确控制。
戴巨川, 吴新开,文丽
《中国工程科学》 2009年 第11卷 第4期 页码 91-95
在感应电机直接转矩控制(DTC)调速系统中,常规PID速度调节器在电机受到扰动的情况下,需要花费较长时间才能使电机恢复到稳态值。为此,将一种新型的自抗扰控制器(ADRC)引入感应电机直接转矩控制调速系统中,设计速度ADRC调节器代替PID调节器,基于模型参考自适应控制(MRAS)方法设计速度观测器。对比分析了PID与ADRC两种方案下无速度传感器直接转矩控制交流调速系统性能。仿真试验结果表明,采用ADRC后,系统动态响应更快,抗扰动能力更强,在电机参数摄动的情况下,电机运行速度与指令速度偏差更小。
标题 作者 时间 类型 操作
Development of an analytical model to estimate the churning losses in high-speed axial piston pumps
期刊论文
Effect of adjusted mesoscale drag model on flue gas desulfurization in powder-particle spouted beds
期刊论文
Analysis and characterization of wind-solar-constant torque spring hybridized model
Shantanu ACHARYA,Subhadeep BHATTACHARJEE
期刊论文
Comparative study of various artificial intelligence approaches applied to direct torque control of induction
Moulay Rachid DOUIRI, Mohamed CHERKAOUI
期刊论文
Analytical model and finite element computation of braking torque in electromagnetic retarder
Lezhi YE,Guangzhao YANG,Desheng LI
期刊论文
Robust SVM-direct torque control of induction motor based on sliding mode controller and sliding mode
Abdelkarim AMMAR,Amor BOUREK,Abdelhamid BENAKCHA
期刊论文
A total torque index for dynamic performance evaluation of a radial symmetric six-legged robot
Kejia LI, Xilun DING, Marco CECCARELL
期刊论文
Sensorless direct torque control for salient-pole PMSM based on extended Kalman filter fed by AC/DC/AC
F. BENCHABANE, A. TITAOUINE, O. BENNIS, K. YAHIA, D. TAIBI, A. GUETTAF
期刊论文
Method of internal 3D flow field numerical simulation for hydrodynamic torque converter
SHANG Tao, ZHAO Dingxuan, ZHANG Yuankun, GUO Xiangen, SHI Xiangzhong
期刊论文