检索范围:
排序: 展示方式:
Kinematical synthesis of an inversion of the double linked fourbar for morphing wing applications
J. AGUIRREBEITIA, R. AVILéS, I. FERNáNDEZ, M. ABASOLO
《机械工程前沿(英文)》 2013年 第8卷 第1期 页码 17-32 doi: 10.1007/s11465-013-0364-5
This paper presents the kinematical features of an inversion of the double linked fourbar for morphing wing purposes. The structure of the mechanism is obtained using structural synthesis concepts, from an initial conceptual schematic. Then, kinematic characteristics as instant center of rotation, lock positions, dead point positions and uncertainty positions are derived for this mechanism in order to face the last step, the dimensional synthesis; in this sense, two kinds of dimensional synthesis are arranged to guide the wing along two positions, and to fulfill with the second one some aerodynamic and minimum actuation energy related issues.
关键词: morphing wing structural synthesis dimensional synthesis geometrical kinematics
Albert ALBERS, Duotai PAN, Leif MARXEN, Claudia BECKE,
《机械工程前沿(英文)》 2010年 第5卷 第3期 页码 261-269 doi: 10.1007/s11465-010-0100-3
关键词: microgear optical distance measurement profile deviation CWL sensor micromechanical technology (MMT)
Maryam ZANDIYEHVAKILI, Isa HOJAT, Mehdi MAHMUDI
《结构与土木工程前沿(英文)》 2019年 第13卷 第3期 页码 716-724 doi: 10.1007/s11709-018-0508-0
关键词: architectural-structural interaction geometrical features structure architectural form Iranian ancient architecture
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
Enhancing power generation of piezoelectric bimorph device through geometrical optimization
Action NECHIBVUTE,Albert CHAWANDA,Pearson LUHANGA
《能源前沿(英文)》 2015年 第9卷 第2期 页码 246-246 doi: 10.1007/s11708-015-0360-z
Contact of surfaces and contact characteristics of offset surfaces
CAO Lixin, GONG Hu, LIU Jian
《机械工程前沿(英文)》 2008年 第3卷 第3期 页码 318-324 doi: 10.1007/s11465-008-0067-5
关键词: relative important geometrical relationship geometrical invariant calculation
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)
Francesco PENTA,Cesare ROSSI,Sergio SAVINO
《机械工程前沿(英文)》 2016年 第11卷 第2期 页码 184-194 doi: 10.1007/s11465-016-0385-y
This study aims to optimize the geometrical parameters of an under-actuated mechanical finger by conducting a theoretical analysis of these parameters. The finger is actuated by a flexion tendon and an extension tendon. The considered parameters are the tendon guide positions with respect to the hinges. By applying such an optimization, the correct kinematical and dynamical behavior of the closing cycle of the finger can be obtained. The results of this study are useful for avoiding the snap-through and the single joint hyperflexion, which are the two breakdowns most frequently observed during experimentation on prototypes. Diagrams are established to identify the optimum values for the tendon guides position of a finger with specified dimensions. The findings of this study can serve as guide for future finger design.
关键词: tendon-driven fingers mechanical finger design under-actuated mechanical systems
Geometrical nonlinear deformation model and its experimental study on bimorph giant magnetostrictive
LIU Wei, JIA Zhenyuan, WANG Fuji, ZHANG Yongshun, GUO Dongming
《机械工程前沿(英文)》 2008年 第3卷 第3期 页码 313-317 doi: 10.1007/s11465-008-0048-8
关键词: magnetostrictive nonlinear magnetostriction inaccurate geometrical nonlinearity
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
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
Generation of closed-form inverse kinematics for reconfigurable robots
ZHAO Jie, WANG Weizhong, GAO Yongsheng, CAI Hegao
《机械工程前沿(英文)》 2008年 第3卷 第1期 页码 91-96 doi: 10.1007/s11465-008-0013-6
关键词: different effectiveness generation reconfigurable algebraic
Inverse kinematics analysis and numerical control experiment for PRS-XY style hybrid machining tool
JIA Dongyong, ZHANG Jianmin, SUN Hongchang, NIU Zhigang
《机械工程前沿(英文)》 2007年 第2卷 第2期 页码 235-238 doi: 10.1007/s11465-007-0041-7
标题 作者 时间 类型 操作
Kinematical synthesis of an inversion of the double linked fourbar for morphing wing applications
J. AGUIRREBEITIA, R. AVILéS, I. FERNáNDEZ, M. ABASOLO
期刊论文
Application and evaluation of optical distance measurements in geometrical quality testing of microgears
Albert ALBERS, Duotai PAN, Leif MARXEN, Claudia BECKE,
期刊论文
The role of geometrical features in the architectural-structural interaction: Some case studies of the
Maryam ZANDIYEHVAKILI, Isa HOJAT, Mehdi MAHMUDI
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
Enhancing power generation of piezoelectric bimorph device through geometrical optimization
Action NECHIBVUTE,Albert CHAWANDA,Pearson LUHANGA
期刊论文
Contact of surfaces and contact characteristics of offset surfaces
CAO Lixin, GONG Hu, LIU Jian
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
Analysis of suitable geometrical parameters for designing a tendon-driven under-actuated mechanical finger
Francesco PENTA,Cesare ROSSI,Sergio SAVINO
期刊论文
Geometrical nonlinear deformation model and its experimental study on bimorph giant magnetostrictive
LIU Wei, JIA Zhenyuan, WANG Fuji, ZHANG Yongshun, GUO Dongming
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
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
Generation of closed-form inverse kinematics for reconfigurable robots
ZHAO Jie, WANG Weizhong, GAO Yongsheng, CAI Hegao
期刊论文
Inverse kinematics analysis and numerical control experiment for PRS-XY style hybrid machining tool
JIA Dongyong, ZHANG Jianmin, SUN Hongchang, NIU Zhigang
期刊论文