Results 11 to 20 of about 764,086 (315)
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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Machines, 2023 In this paper, a spatial parallel mechanism with five degrees of freedom is studied in order to provide a promising dynamic model for the control design.
Dingxu Guo +3 more
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Kinematic Calibration Method for Six-Hardpoint Positioning Mechanisms Using Optimal Measurement Pose
Applied Sciences, 2023 In this study, a kinematic calibration method is proposed. The method selects the optimal measurement poses based on the observability index O1, and is used for six-hardpoint positioning mechanisms, which can identify and compensate for kinematic ...
Zhiyuan Yu, Xiaoxia Wu, Fuguo Wang
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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.
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Controller Design for Parallel Mechanism Solar Tracker
Machines, 2023 Solar energy is considered a sustainable solution that has proven its technological competence for electricity generation among renewable energy sources.
Mustafa Engin
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Development of an Insect-like Flapping-Wing Micro Air Vehicle with Parallel Control Mechanism
Applied Sciences, 2022 Most traditional flapping-wing micro air vehicles (FMAVs) adopt a serial control mechanism, which means that one drive corresponds to one degree of freedom.
Zihao Chen +3 more
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Mapping the Tilt and Torsion Angles for a 3-SPS-U Parallel Mechanism
Robotics, 2023 This article presents the analysis of a parallel mechanism of type 3-SPS-U. The usual singularity approach is carried out with respect to the Euler angles of the universal joint. However, this approach is computationally expensive especially when stacked
Swaminath Venkateswaran, Damien Chablat
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Type Synthesis of 4-DOF Non-Overconstrained Parallel Mechanisms with Symmetrical Structures
Machines, 2022 This paper presents the type synthesis of 4-DOF non-overconstrained parallel mechanisms (PMs) with symmetrical structures. A special topological structure that includes two intermediate platforms and one moving platform is employed. Constraint conditions
Wei Ye, Qinchuan Li, Xinxue Chai
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Design and Experimental Research of 3-RRS Parallel Ankle Rehabilitation Robot
Micromachines, 2022 The ankle is a crucial joint that supports the human body weight. An ankle sprain will adversely affect the patient’s daily life, so it is of great significance to ensure its strength.
Yupeng Zou +5 more
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Applied Sciences, 2022 The platforms of parallel mechanisms usually suffer vibration loads. In these cases, structure elastodynamic analysis and elastodynamic optimization of parallel mechanisms are important. A tube structure is very common for parallel mechanisms.
Caizhi Zhou, Youcheng Han, Weizhong Guo
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