Results 11 to 20 of about 1,511 (225)
Deformation of flexible gear of harmonic drive
Journal of Physics: Conference Series, 2020 Abstract Harmonic drives have high load capacity, kinematic accuracy, and small weight and dimensions’ parameters, compared to other transmissions. Due to the variable stiffness in the areas of the teeth and tooth sockets, the toothed rim of the harmonic drive during bending takes the shape of a polyhedron.
A V Baris, Yu V Vanag
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The Comparison of the Amount of Backlash of a Harmonic Gear System
Tehnički vjesnik, 2021 This article presents a study of the amount of harmonic gear system backlash. The study shows a method for an effective measuring of the amount of backlash in harmonic gear systems. Given that this calculation tasks demand a lot of iterative operations, this article introduces a new method for creating 2D and 3D models of a harmonic gear system. At the
Majchrák*, Maroš +3 more
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A design of HDPE flexible spline of harmonics gear [PDF]
MATEC Web of Conferences, 2018 In a design of a small robot, selecting a servo-motor is the most important method in designing process. Common miniature servo motors for small robots normally use conventional gear train set or planetary gear set. Gear train and planetary gear give very low gear ratio whereas its weight is too heavy.
Chotiprayanakul Pholchai +2 more
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Vibration Responses of the Bearing-Rotor-Gear System with the Misaligned Rotor
Machines, 2022 The bearing-rotor-gear system is an important mechanical component for transmitting motion and power. Due to the complex responses, the condition assessment of the transmission system becomes more difficult. Thus, a model of the bearing-rotor-gear system
Fengtao Wang +3 more
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Analytical Method for Magnetic Field of Eccentric Magnetic Harmonic Gear [PDF]
IEEE Access, 2020 Eccentric magnetic harmonic gears (EMHG) can achieve high speed ratio transmission and large torque output by modulating the air gap length between permanent magnets (PM). The analytical method is based on the boundary perturbation method. The vector magnetic potential perturbation equation in the air gap region is established, and the general solution
Libing Jing, Jun Gong, Tong Ben
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Jixie chuandong, 2022 Hysteresis stiffness is an inherent property of harmonic gear drive. In the traditional dynamic modeling of harmonic gear drive，the stiffness is considered as fixed stiffness or piecewise fixed stiffness，which will lead to reduction of the accuracy of ...
Linfeng Qiu +5 more
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Development of Harmonic Drive Combining Four Arcs for Conventional Kinematic Application
Machines, 2022 This paper proposes a modified harmonic cam, which is used to design a harmonic drive. Conventional harmonic drives using a sinusoidal cam type pertain to an elastic body concept and are thus difficult to design and evaluate.
Taesu Kim +4 more
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On the Kinematic Error in Harmonic Drive Gears
Journal of Mechanical Design, 1998 Harmonic drive gears are widely used in space applications, robotics, and precision positioning systems because of their attractive attributes including near-zero backlash, high speed reduction ratio, compact size, and small weight. On the other hand, they possess an inherent periodic positioning error known as kinematic error responsible for ...
Ghorbel, F. H. +2 more
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Simulation of meshing characteristics of harmonic reducer and experimental verification
Advances in Mechanical Engineering, 2018 This article studies the causes of the time-varying stiffness of harmonic drive gear and the number of meshing teeth and the meshing length under different torques. Multi-pair tooth meshing characterizes the operating process of the harmonic gear reducer.
Jianfeng Ma +3 more
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Advanced Robotics Research, EarlyView.This review maps the methods to monitor robots’ health by fusing vibration, sound, control signals, vision, force, and oil information with artificial intelligence. It identifies deep learning, transfer learning, digital twins, and physics‐informed models as key methodological pathways enabling earlier diagnosis, safer human–robot collaboration, and ...
Yuting Qiao +6 more
wiley +1 more source