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Yue WANG, Jingjun YU, Xu PEI
《机械工程前沿(英文)》 2018年 第13卷 第3期 页码 368-375 doi: 10.1007/s11465-018-0519-5
A new forward kinematics algorithm for the mechanism of 3-RPS (R: Revolute; P: Prismatic; S: Spherical) parallel manipulators is proposed in this study. This algorithm is primarily based on the special geometric conditions of the 3-RPS parallel mechanism, and it eliminates the errors produced by parasitic motions to improve and ensure accuracy. Specifically, the errors can be less than 10-6 . In this method, only the group of solutions that is consistent with the actual situation of the platform is obtained rapidly. This algorithm substantially improves calculation efficiency because the selected initial values are reasonable, and all the formulas in the calculation are analytical. This novel forward kinematics algorithm is well suited for real-time and high-precision control of the 3-RPS parallel mechanism.
关键词: 3-RPS parallel mechanism forward kinematics numerical algorithm parasitic motion
Inverse Kinematics Analysis of General 6R Serial Robot Mechanism Based on Groebner Base
WANG Yan, HANG Lu-bin, YANG Ting-li
《机械工程前沿(英文)》 2006年 第1卷 第1期 页码 115-124 doi: 10.1007/s11465-005-0022-7
This study presents a solution for the inverse kinematics problem in serial 6R manipulator. Using only seven equations composed of Duffy s four kinematical equations containing three angles and three corresponding angles identical equations instead of the traditional 14 equations, the authors reduced the inverse kinematics problem in the general 6R manipulator to a univariate polynomial with a minimum degree based on the Groebner Base method. From that, they concluded that the maximum number of the solutions is 16, generally. Also, the mathematics mechanization method can be extended to solve other mechanism problems involving nonlinear equations symbolically.
关键词: identical manipulator univariate polynomial mechanism traditional
Zi-wu REN,Zhen-hua WANG,Li-ning SUN
《信息与电子工程前沿(英文)》 2015年 第16卷 第7期 页码 607-616 doi: 10.1631/FITEE.14a0335
关键词: Inverse kinematics problem 8-DOF humanoid manipulator Biogeography-based optimization (BBO) Differential evolution (DE)
《化学科学与工程前沿(英文)》 2023年 第17卷 第10期 页码 1470-1483 doi: 10.1007/s11705-023-2329-5
关键词: forward osmosis membrane graphene oxide quantum dots graft modification anti-fouling membrane XDLVO theory
Hongtao ZHU, Wenna LI
《环境科学与工程前沿(英文)》 2013年 第7卷 第2期 页码 294-300 doi: 10.1007/s11783-013-0486-3
关键词: forward osmosis membrane bioreactor bisphenol A microfiltration
A review on the forward osmosis applications and fouling control strategies for wastewater treatment
《化学科学与工程前沿(英文)》 2022年 第16卷 第5期 页码 661-680 doi: 10.1007/s11705-021-2084-4
关键词: forward osmosis wastewater treatment membrane fouling fouling control
China Keeps Carrying Forward the Key Special Project of “Air Pollution Causes and Control”
Huan Liu,Kebin He
《环境科学与工程前沿(英文)》 2016年 第10卷 第5期 doi: 10.1007/s11783-016-0881-7
《环境科学与工程前沿(英文)》 2022年 第16卷 第9期 doi: 10.1007/s11783-022-1550-7
• A fine fibre (40–60 nm diameter) interlayer (~1 µm thickness) was electrospun.
关键词: Forward osmosis Electro-spinning Interfacial polymerisation Fouling Polyvinylidene fluoride
Fugui XIE,Xin-Jun LIU
《机械工程前沿(英文)》 2016年 第11卷 第2期 页码 135-143 doi: 10.1007/s11465-016-0389-7
This study introduces a high-speed parallel robot with Schönflies motion. This robot exhibits a promising prospect in realizing high-speed pick-and-place manipulation for packaging production lines. The robot has four identical limbs and a single platform. Its compact structure and single-platform concept provides this robot with good dynamic response potential. A line graph method based on Grassmann line geometry is used to investigate the mobility characteristics of the proposed robot. A generalized Blanding rule is also introduced into this procedure to realize mutual conversion between the line graphs for motions and constraints. Subsequently, the inverse kinematics is derived, and the singularity issue of the robot is investigated using both qualitative and quantitative approaches. Input and output transmission singularity indices are defined based on the reciprocal product in screw theory and the virtual coefficient by considering motion/force transmission performance. Thereafter, the singular loci of the proposed robot with specific geometric parameters are derived. The mobility analysis, inverse kinematics modeling, and singularity analysis conducted in this study are helpful in developing the robot.
关键词: parallel robot mobility inverse kinematics singularity transmission performance
General closed-form inverse kinematics for arbitrary three-joint subproblems based on the product of
《机械工程前沿(英文)》 2022年 第17卷 第2期 doi: 10.1007/s11465-022-0681-7
关键词: inverse kinematics Paden–Kahan subproblems three-joint subproblems product of exponential closed-form solution
《环境科学与工程前沿(英文)》 2021年 第15卷 第6期 doi: 10.1007/s11783-021-1428-0
• The boron concentration in diluted DS can satisfy the irrigation water standard.
关键词: Fertilizer drawn forward osmosis (FDFO) Boron removal Specific energy consumption (SEC) Seawater reverse osmosis (SWRO) Irrigation water production
Akshay Jain, Zhen He
《环境科学与工程前沿(英文)》 2018年 第12卷 第4期 doi: 10.1007/s11783-018-1052-9
Resource recovery from wastewater is a key function of bioelectrochemical systems. NEW resources to recover include Nutrient, Energy, and Water. Identifying proper application niches can guide BES research and development. More efforts should be invested to the application of recovered resources. A mindset for energy performance and system scaling is critically important.
关键词: Bioelectrochemical systems Resource recovery Wastewater treatment Energy Nutrients
《结构与土木工程前沿(英文)》 2021年 第15卷 第6期 页码 1453-1479 doi: 10.1007/s11709-021-0767-z
关键词: damage detection deep feed-forward neural networks functionally graded carbon nanotube-reinforced composite plates modal kinetic energy
《化学科学与工程前沿(英文)》 2022年 第16卷 第5期 页码 755-763 doi: 10.1007/s11705-022-2137-3
关键词: forward osmosis lithium-ion battery draw solution lithium-containing wastewater water treatment
Moving policy and regulation forward for single-use plastic alternatives
《环境科学与工程前沿(英文)》 2021年 第15卷 第3期 doi: 10.1007/s11783-021-1423-5
关键词: Single-use plastic alternatives Policy Regulation Sustainable development
标题 作者 时间 类型 操作
Fast forward kinematics algorithm for real-time and high-precision control of the 3-RPS parallel mechanism
Yue WANG, Jingjun YU, Xu PEI
期刊论文
Inverse Kinematics Analysis of General 6R Serial Robot Mechanism Based on Groebner Base
WANG Yan, HANG Lu-bin, YANG Ting-li
期刊论文
Ahybrid biogeography-based optimization method for the inverse kinematics problem of an 8-DOF redundant
Zi-wu REN,Zhen-hua WANG,Li-ning SUN
期刊论文
Enhanced permeability and biofouling mitigation of forward osmosis membranes via grafting graphene quantum
期刊论文
Bisphenol A removal from synthetic municipal wastewater by a bioreactor coupled with either a forward
Hongtao ZHU, Wenna LI
期刊论文
A review on the forward osmosis applications and fouling control strategies for wastewater treatment
期刊论文
China Keeps Carrying Forward the Key Special Project of “Air Pollution Causes and Control”
Huan Liu,Kebin He
期刊论文
Design of nanofibre interlayer supported forward osmosis composite membranes and its evaluation in fouling
期刊论文
Analysis of the kinematic characteristics of a high-speed parallel robot with Schönflies motion: Mobility, kinematics
Fugui XIE,Xin-Jun LIU
期刊论文
General closed-form inverse kinematics for arbitrary three-joint subproblems based on the product of
期刊论文
Fertilizer drawn forward osmosis as an alternative to 2nd pass seawater reverse osmosis: Estimation of
期刊论文
“NEW” resource recovery from wastewater using bioelectrochemical systems: Moving forward with functions
Akshay Jain, Zhen He
期刊论文
A deep feed-forward neural network for damage detection in functionally graded carbon nanotube-reinforced
期刊论文
Lithium-based draw solute for forward osmosis to treat wastewater discharged from lithium-ion battery
期刊论文