Results 31 to 40 of about 181,181 (303)
Kinematics and workspace analysis of a 3ppps parallel robot with u-shaped base [PDF]
, 2017 This paper presents the kinematic analysis of the 3-PPPS parallel robot with an equilateral mobile platform and a U-shape base. The proposed design and appropriate selection of parameters allow to formulate simpler direct and inverse kinematics for the ...
Baron, Luc, Chablat, Damien, Jha, Ranjan
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Mechanism Design and Performance Analysis of a Wearable Hand Rehabilitation Robot
Machines, 2022 Hand rehabilitation is critical to the recovery of post-stroke patients. However, designing a modular mechanism of the hand to improve the human-machine compatibility and precision of operation is still a challenge. This paper proposes a new type of hand
Jiazheng Du +6 more
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Self-Motions of General 3-RPR Planar Parallel Robots [PDF]
, 2008 This paper studies the kinematic geometry of general 3-RPR planar parallel robots with actuated base joints. These robots, while largely overlooked, have simple direct kinematics and large singularity-free workspace. Furthermore, their kinematic geometry
Bonev, I.A. +11 more
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IEEE Access, 2019 Large diameter space deployable antenna is the key equipment for communication and data transmission between spacecraft and base stations on earth. Based on the overconstrained scissors mechanism, a double-hoop truss deployable antenna mechanism is ...
Bo Han +4 more
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ARE PARALLEL ROBOTS MORE ACCURATE THAN SERIAL ROBOTS? [PDF]
Transactions of the Canadian Society for Mechanical Engineering, 2007 It is widely claimed that parallel robots are intrinsically more accurate than serial robots because their errors are averaged instead of added cumulatively, an assertion which has not been properly addressed in the literature. This paper addresses this void by comparing the kinematic accuracy of two pairs of serial-parallel 2-DOF planar robots.
Briot, Sébastien, Bonev, Ilian
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Kinematic and dynamic characteristics' analysis of a scissor multi-rod ring deployable mechanism [PDF]
Mechanical Sciences, 2023 In this paper, the authors developed a double-layer ring truss deployable antenna mechanism (RTDAM) based on a scissor unit, which can be used as the deployment and support mechanism in large-aperture satellite antenna. Firstly, three configuration state
B. Han +9 more
doaj +1 more source
Configuration Design of an Upper Limb Rehabilitation Robot with a Generalized Shoulder Joint
Applied Sciences, 2021 For stroke patients with upper limb motor dysfunction, rehabilitation training with the help of rehabilitation robots is a social development trend. Existing upper limb rehabilitation robots have difficulty fully fitting the complex motion of the human ...
Hao Yan +6 more
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Machines, 2021 Muscle weakness is the primary impairment causing mobility difficulty among stroke survivors. Millions of people are unable to live normally because of mobility difficulty every year.
Musong Lin +6 more
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Dynamic whole-body motion generation under rigid contacts and other unilateral constraints [PDF]
, 2013 The most widely used technique for generating wholebody motions on a humanoid robot accounting for various tasks and constraints is inverse kinematics. Based on the task-function approach, this class of methods enables the coordination of robot movements
Et Al. Dy +12 more
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Aerospace, 2023 A multi-dimensional morphing wing skeleton mechanism is proposed with double-sided triangular pyramid units, which can realize continuous variable span-wise bend, span-wise twist, and sweep.
Hui Yang +3 more
doaj +1 more source