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Synthesis of spherical parallel manipulator for dexterous medical task
Abdelbadia CHAKER, Abdelfattah MLIKA, Med Amine LARIBI, Lotfi ROMDHANE, Sa?d ZEGHLOUL
《机械工程前沿(英文)》 2012年 第7卷 第2期 页码 150-162 doi: 10.1007/s11465-012-0325-4
This paper deals with the design and the analysis of a spherical parallel manipulator (SPM) for a haptic minimally invasive surgery application. First the medical task was characterized with the help of a surgeon who performed a suture technique called anastomosis. A Vicon system was used to capture the motion of the surgeon, which yielded the volume swept by the tool during the anastomosis operation. The identified workspace can be represented by a cone with a half vertex angle of 26°. A multi objective optimization procedure based on genetic algorithms was then carried out to find the optimal SPM. Two criteria were considered, i.e., task workspace and mechanism dexterity. The optimized SPM was then analyzed to determine the error on the orientation of the end effector as a function of the manufacturing errors of the different links of the mechanism.
关键词: spherical parallel manipulator (SPM) anastomosis haptic motion capture optimization workspace dexterity genetic algorithm manufacturing errors
Contribution to the design of robotized tele-echography system
T. ESSOMBA, M. A. LARIBI, J. P. GAZEAU, S. ZEGHLOUL, G. POISSON
《机械工程前沿(英文)》 2012年 第7卷 第2期 页码 135-149 doi: 10.1007/s11465-012-0326-3
This paper introduces the design of a master-slave robotized system for tele-ultrasound application. The objective of these researches is to design the slave manipulator of this system and its control device (master part). The specification process of the architecture kinematic is based on the analysis of expert’s gesture during ultrasound examinations. These studies have been carried out using a motion capture system. The medical gestures were analyzed in terms of ultrasound probe attitude and used in the definition of the kinematics specifications of the proposed manipulator. The Spherical Parallel Mechanism is selected because its characteristics meet the constraint requirements. The optimal synthesis of spherical parallel manipulators is performed using a real-coded Genetic Algorithm based method. Simulations on the actuator responses of the structure allowed us the validate it. In order to control this robot, we have also designed a haptic device that provides easiness to use as well as force feedback. Its orientation control strategy is based on a use of an adaptative kalman filter which efficiency was demonstrated during experimentations.
关键词: tele-echography motion capture spherical parallel mechanism genetic algorithm adaptative kalman filter
Offline motion planning and simulation of two-robot welding coordination
Tie ZHANG, Fan OUYANG
《机械工程前沿(英文)》 2012年 第7卷 第1期 页码 81-92 doi: 10.1007/s11465-012-0309-4
This paper focuses on the two-robot welding coordination of complex curve seam which means one robot grasp the workpiece, the other hold the torch, the two robots work on the same workpiece simultaneously. This paper builds the dual-robot coordinate system at the beginning, and three point calibration method of two robots’ relative base coordinate system is presented. After that, the non master/slave scheme is chosen for the motion planning, the non master/slave scheme sets the poses versus time function of the point u on the workpiece, and calculates the two robot end effecter trajectories through the constrained relationship matrix automatically. Moreover, downhand welding is employed which can guarantee the torch and the seam keep in good contact condition all the time during the welding. Finally, a Solidworks-SimMechanics simulation platform is established, and a simulation of curved steel pipe welding is conducted. The results of the simulation illustrate the welding process can meet the requirements of downhand welding, the joint displacement curves are smooth and continuous and no joint velocities are out of working scope.
关键词: complex curve seam two robots coordinated welding motion planning
Dynamic modelling and simulation of a post-combustion CO capture process for coal-fired power plants
《化学科学与工程前沿(英文)》 2022年 第16卷 第2期 页码 198-209 doi: 10.1007/s11705-021-2057-7
关键词: CO2 capture post-combustion capture simulation dominant factor
Reduction potential of the energy penalty for CO capture in CCS
《能源前沿(英文)》 2023年 第17卷 第3期 页码 390-399 doi: 10.1007/s11708-023-0864-x
关键词: CO2 capture and storage (CCS) CO2 separation energy penalty
Dawid P. Hanak, Vasilije Manovic
《化学科学与工程前沿(英文)》 2020年 第14卷 第3期 页码 453-459 doi: 10.1007/s11705-019-1892-2
关键词: carbon capture energy storage renewable energy sources decarbonisation fossil fuels
Synthesis of Intermittent-Motion Linkages with Slight Difference in Length Between Links
CHEN Xin-bo, YU Zhen
《机械工程前沿(英文)》 2006年 第1卷 第1期 页码 76-79 doi: 10.1007/s11465-005-0007-6
The design of intermittent-motion linkages using traditional methods is usually complicated. In this paper, (1) a new method for realizing intermittent motion, using linkages with a slight difference in length between links, is studied; (2) some new types of intermittent-motion linkages and their software for visual analysis and design are developed; and (3) influences of some design parameters on intermittent-motion characteristics are clarified. Results confirmed that the theory and the software are useful, making the synthesis of intermittent-motion linkages clear and easy.
关键词: synthesis useful intermittent intermittent-motion traditional
Application of membrane separation technology in post-combustion carbon dioxide capture process
Mo LI,Xiaobin JIANG,Gaohong HE
《化学科学与工程前沿(英文)》 2014年 第8卷 第2期 页码 233-239 doi: 10.1007/s11705-014-1408-z
关键词: membranes carbon dioxide capture separation polymers post-combustion
China’s policy framework for carbon capture, utilization and storage: Review, analysis, and outlook
《能源前沿(英文)》 2023年 第17卷 第3期 页码 400-411 doi: 10.1007/s11708-023-0862-z
关键词: carbon capture utilization and storage (CCUS) policy content analysis China
Design and modeling of continuum robot based on virtual-center of motion mechanism
《机械工程前沿(英文)》 2023年 第18卷 第2期 doi: 10.1007/s11465-022-0739-6
关键词: VCM mechanism continuum robot flexural joint pseudo-rigid body model cable-driven
《能源前沿(英文)》 2023年 第17卷 第3期 页码 380-389 doi: 10.1007/s11708-023-0872-x
关键词: CO2 capture carbonation theoretical modeling operando techniques reaction visualization
Measurement and analysis of typical motion error traces from a circular test
LI Xiaoli, LIU Huanlao
《机械工程前沿(英文)》 2008年 第3卷 第2期 页码 146-150 doi: 10.1007/s11465-008-0033-2
关键词: machine compensation direction combination desired efficient
Rini NISHANTH, Andrew WHYTE, V. John KURIAN
《工程管理前沿(英文)》 2018年 第5卷 第3期 页码 357-368 doi: 10.15302/J-FEM-2018022
Floating production storage and offloading (FPSO) units increasingly represent a practical and economic means for deep-water oil extraction and production. Systems thinking gives a unique opportunity to seek a balance between FPSO technical performance(s), with whole-cost; stakeholder decision-making is charged to align different fit-for-use design specification options’ that address technical-motion(s), with respective life-cycle cost analyses (LCCA). Soft system methodology allows situation based analyses over set periods-of-time by diagnosing the problem-at-hand; namely, assessing the antecedents of life-cycle cost relative to FPSO sub-component design alternatives. Alternative mooring- component comparisons for either new-build hulls or refurbished hulls represent an initial necessary consideration to facilitate extraction, production and storage of deep-water oil reserves. Coupled dynamic analysis has been performed to generate FPSO motion in six degrees of freedom using SESAM DeepC, while life-cycle cost analysis (LCAA) studies give net-present-value comparisons reflective of market conditions. A parametric study has been conducted by varying wave heights from 4 – 8 m to understand FPSO motion behavior in the presence of wind and current, as well as comparing the motions of turreted versus spread mooring design alternatives. LCCA data has been generated to compare the cost of such different mooring options/hull conditions over 10 and 25-year periods. Systems thinking has been used to explain the interaction of problem variables; resultantly this paper is able to identify explicit factors affecting the choice of FPSO configurations in terms of motion and whole-cost, toward assisting significantly with the front-end engineering design (FEED) phase of fit-for-purpose configured FPSOs, in waters off Malaysia and Australia.
关键词: FPSO LCCA spread/turret-mooring DeepC cost motion soft-systems
《能源前沿(英文)》 2023年 第17卷 第3期 页码 412-427 doi: 10.1007/s11708-023-0879-3
关键词: coal-to-liquid carbon capture utilization and storage (CCUS) carbon footprint levelized cost of liquid lifecycle assessment
标题 作者 时间 类型 操作
Synthesis of spherical parallel manipulator for dexterous medical task
Abdelbadia CHAKER, Abdelfattah MLIKA, Med Amine LARIBI, Lotfi ROMDHANE, Sa?d ZEGHLOUL
期刊论文
Contribution to the design of robotized tele-echography system
T. ESSOMBA, M. A. LARIBI, J. P. GAZEAU, S. ZEGHLOUL, G. POISSON
期刊论文
Dynamic modelling and simulation of a post-combustion CO capture process for coal-fired power plants
期刊论文
Linking renewables and fossil fuels with carbon capture via energy storage for a sustainable energy future
Dawid P. Hanak, Vasilije Manovic
期刊论文
Synthesis of Intermittent-Motion Linkages with Slight Difference in Length Between Links
CHEN Xin-bo, YU Zhen
期刊论文
Application of membrane separation technology in post-combustion carbon dioxide capture process
Mo LI,Xiaobin JIANG,Gaohong HE
期刊论文
China’s policy framework for carbon capture, utilization and storage: Review, analysis, and outlook
期刊论文
measurements: Powerful tools for revealing the mechanism of alkali carbonate-based sorbents for CO capture
期刊论文
Measurement and analysis of typical motion error traces from a circular test
LI Xiaoli, LIU Huanlao
期刊论文
Floating production storage and offloading systems’ cost and motion performance: A systems thinking application
Rini NISHANTH, Andrew WHYTE, V. John KURIAN
期刊论文