Results 1 to 10 of about 11,525,512 (295)
Parallel mechanisms for visual search in zebrafish. [PDF]
PLoS One, 2014 This research was funded by project grant G1000053 from the National Centre for the Replacement, Reduction and Refinement of animals in research (NC3Rs; UK) and by the Medical Research Council (MRC; UK).
Proulx MJ +3 more
europepmc +14 more sources
Stiffness modeling of parallel mechanisms at limb and joint/link levels [PDF]
IEEE Transactions on robotics, 2017 Drawing on screw theory and the virtual joint method, this paper presents a general and hierarchical approach for semianalytical stiffness modeling of parallel mechanisms.
Chetwynd, D. G. +3 more
core +2 more sources
Actuation Spaces Synthesis of Lower-Mobility Parallel Mechanisms Based on Screw Theory
, 2021 The lower-mobility parallel mechanism has been widely used in the engineering field due to its numerous excellent characteristics. However, little work has been devoted to the actuator selection and placement that best satisfy the system’s functional ...
Shihua Li +3 more
semanticscholar +1 more source
Dynamics and Isotropic Control of Parallel Mechanisms for Vibration Isolation
IEEE/ASME transactions on mechatronics, 2020 Parallel mechanisms have been employed as architectures of high-precision vibration isolation systems. However, their performances in all degrees of freedom (DOFs) are nonidentical. The conventional solution to this problem is isotropic mechanism design,
Xiaolong Yang +7 more
semanticscholar +1 more source
, 2020 The current type synthesis of the redundant actuated parallel mechanisms is adding active-actuated kinematic branches on the basis of the traditional parallel mechanisms, or using screw theory to perform multiple getting intersection and union to ...
Yongquan Li, Yang Zhang, Lijie Zhang
semanticscholar +1 more source
Optimal dimensional synthesis of force feedback lower arm exoskeletons [PDF]
, 2008 This paper presents multi-criteria design optimization of parallel mechanism based force feedback exoskeletons for human forearm and wrist. The optimized devices are aimed to be employed as a high fidelity haptic interfaces.
Patoglu, Volkan +3 more
core +1 more source
, 2020 The current research of reconfigurable parallel mechanism mainly focuses on the construction of reconfigurable joints. Compared with the method of changing the mobility by physical locking joints, the geometric constraint has good controllability, and ...
Duanling Li +4 more
semanticscholar +1 more source
Parallel Mechanisms. Parallel CMM (Coordinate Measuring Machine Using Parallel Mechanism).
Journal of the Japan Society for Precision Engineering, 1997 本解説では,座標測定機の種々の構成を紹介し,新しい座標測定機としてパラレルCMMの構成を考えた.しかし,4章に示したようにパラレルCMMの実用化には多くの課題が残されている.これを解決するためにはいくつかの基本的なアイデアの実用化が必要である.特に絶対的な校正の問題は,多関節タイプやスカラタイプの座標測定機を含めて大きな課題であると考えている.直交型の座標測定機が座標測定機として成熟しつつあることを考えると,パラレルCMMは,その高速性を生かしたり,小さくて高精度の座標測定を目指したり,逆に大きくて低価格な測定機を目指すなど,直交型の座標測定機とのうまい住み分けを目指す必要があると考えている.
Kiyoshi TAKAMASU, Masahiko HIRAKI
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Type Synthesis of Lower Mobility Parallel Mechanisms: A Review
Chinese Journal of Mechanical Engineering, 2019 Type synthesis of mechanisms aims to systematically determine all possible structures for a specific mobility requirement. Numerous methods based on different theories were proposed for type synthesis of lower mobility parallel mechanisms in past decades.
W. Ye, Qinchuan Li
semanticscholar +1 more source
Contact Quantization: Quantum Mechanics = Parallel transport [PDF]
Archivum Mathematicum, 2018 Quantization together with quantum dynamics can be simultaneously formulated as the problem of finding an appropriate flat connection on a Hilbert bundle over a contact manifold. Contact geometry treats time, generalized positions and momenta as points on an underlying phase-spacetime and reduces classical mechanics to contact topology.
Herczeg G., Latini E., Waldron A.
openaire +3 more sources