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KINEMATICS FEATURE ANALYSIS OF A 3-DOF COMPLIANT MECHANISM FOR MICRO MANIPULATION 被引量:22
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作者 YuJingjun HuYida +2 位作者 BiShusheng ZongGuanghua ZhaoWei 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2004年第1期127-131,共5页
Kinematics and its related issues of a 3-DOF in-parallel compliant mechanismare focused on. The micro manipulation application that requires high accuracy is developed. Designof the developed micromanipulator is based... Kinematics and its related issues of a 3-DOF in-parallel compliant mechanismare focused on. The micro manipulation application that requires high accuracy is developed. Designof the developed micromanipulator is based on the modified Delta mechanism. The main advantages ofthis manipulator are the use of only revolute flexure hinges and the capability to produce puretranslation theoretically. The aim is to develop an efficient kinematic model used for positioningcontrol. For this purpose, the Jacobian matrix relating the end effector position with the actuatordisplacements is obtained by both theoretical derivation and experiment. Aiming at the abnormalityin the motion capabilities of the micromanipulator found in calibration experiment, the mobility ofthe compliant mechanism on a theoretical level is analyzed by using the matrix method and screwtheory. Both the experimental and theoretical results have verified that the compliant mechanismdoes have rotational motion. 展开更多
关键词 Compliant mechanism KINEMATICS CALIBRATION MOBILITY
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DYNAMIC MODELING OF METAMORPHIC MECHANISM 被引量:10
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作者 JinGuoguang DaiJiansheng 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2003年第1期94-99,共6页
The concept of metamorphic mechanism is put forward according to the changeof configurations from one state to another. Different configurations of metamorphic mechanism aredescribed through the method of Huston lower... The concept of metamorphic mechanism is put forward according to the changeof configurations from one state to another. Different configurations of metamorphic mechanism aredescribed through the method of Huston lower body arrays. Kinematics analyses for metamorphicmechanism with generalized topological structure, including the velocity, angular velocity,acceleration and angular acceleration, are given. Dynamic equations for an arbitrary configuration,including close-loop constraints, are formed by using Kane's equations. For an arbitrary metamorphicmechanism, the transformation matrix of generalized speeds between configuration zeta and zeta+1 isobtained for the first time. Furthermore, configuration-complete dynamic modeling of metamorphicmechanism including all configurations is completely established. 展开更多
关键词 Metamorphic mechanism CONFIGURATION Huston lower body arrays Transformation matrix Configuration-complete
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OPTIMAL DESIGN OF A 6-AXIS FORCE TRANSDUCER BASED ON STEWART PLATFORM RELATED TO SENSITIVITY ISOTROPY 被引量:10
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作者 JinZhenlin GaoFenfl GaoFeng 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2003年第2期146-148,共3页
The design method of a 6-axis force robot's transducer based on the Stewartplatform is detailed. For this purpose, the sensitivity isotropy evaluation criteria of thetransducer are defined, and by the aid of compu... The design method of a 6-axis force robot's transducer based on the Stewartplatform is detailed. For this purpose, the sensitivity isotropy evaluation criteria of thetransducer are defined, and by the aid of computer, the relationships between the criteria and theparameters of all the transducers based on the Stewart platform are investigated within thegeometric model of the solution space, which can provide the theoretical background for the optimalconstruction design of the 6-axis force transducer related to the sensitivity isotropy. 展开更多
关键词 6-axis force robot's transducer optimal construction design stewartplatform sensitivity isotropy
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The Redundant Arm Self-motion Control Based on Serf-tuning Fuzzy PID Controller
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作者 LiuYu SunLining DuZhijiang 《High Technology Letters》 EI CAS 2004年第2期57-60,共4页
A fuzzy control algorithm based on self-tuning PID proportional factor is presented. To a certain de-gree, it overcomes robot motion control's nonlinearity and uncertainty caused by joints coupled and fric-tion, a... A fuzzy control algorithm based on self-tuning PID proportional factor is presented. To a certain de-gree, it overcomes robot motion control's nonlinearity and uncertainty caused by joints coupled and fric-tion, and decreases overshoot of end manipulator's tracking desired curves. The controller's structure is very simple but effective. With this control method, a 7-DOF redundant ann's self-motion developed by the authors is investigated. Research results show that the said controller restrains track overshoot and preferable merits. 展开更多
关键词 比例因子 自调整模糊PID控制器 弹道寻迹误差 自运动控制 机器人
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Operation principle of a novel curvature plastic fiber optic sensor
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作者 付宜利 LiuRenqiang WangShuguo 《High Technology Letters》 EI CAS 2005年第2期197-201,共5页
The operation principle of a new type of intensity modulate macrobend curvature optical fiber senor was presented based on surface light scattering theory. Sensor's static and dynamic performance was investigated.... The operation principle of a new type of intensity modulate macrobend curvature optical fiber senor was presented based on surface light scattering theory. Sensor's static and dynamic performance was investigated. This type of sensor can distinguish between positive and negative bending directions. When curvature radius is larger than 50mm, the sensor will keep good linearity. Two-dimensional shape measurement experiments using curvature sensors have been implemented. 展开更多
关键词 曲率测量 光纤传感器 光线散射 移动机器人
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