Results 181 to 190 of about 798 (216)
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Synchronous operation for DC servo-motors with harmonic drive gearing
FUZZ-IEEE'99. 1999 IEEE International Fuzzy Systems. Conference Proceedings (Cat. No.99CH36315), 1999Synchronous operation is a control strategy that is widely applied to industrial field for high efficiency and precision. This paper proposes an active synchronous control algorithm by considering the weight value which is alteration of traditional synchronous operation algorithm, and simulates it for five DC servo-motors with harmonic drive.
null Yeon Tae Kim +2 more
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Improving the Reliability of EMA by using Harmonic Drive Gears
SAE Technical Paper Series, 2005<div class="htmlview paragraph">Attention in using electro-mechanical actuators (EMA) in aircraft is increasing. The long-term vision is to replace hydraulic actuation completely and to come to the all-electric aircraft. Several challenges are waiting on this path.
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Modeling and compensation for angular transmission error in harmonic drive gearings
IEEJ Transactions on Electrical and Electronic Engineering, 2009AbstractThis paper presents a novel modeling and compensation approach for the angular transmission error in harmonic drive gearings. In the modeling, physical phenomena of the transmission error due to nonlinear elastic deformations in micro‐displacement region are especially dealt with, as well as the synchronous component which has been discussed in
Masafumi Yamamoto +5 more
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Non-Linear Dynamic Modeling and Experiment of Harmonic Gear Drive
Applied Mechanics and Materials, 2014A non-linear torsional vibration model of harmonic gear drive is proposed in the current study. The model includes clearance, nonlinearity torsional stiffness and nonlinearity damping. The clearance model is developed by introducing the piecewise-linear displacement functions.
Hui Bo Zhang +5 more
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Study on the Gear Tooth Influence Coefficients of Flexspline of Harmonic Drive
Advanced Materials Research, 2013The gear teeth have influence on the stresses in flexspline, through the influence coefficients of gear tooth of flexspline. For the purpose of theoretically clarifying this influence, the profile of the gear tooth of the flexspline is simplified as two simple shapes of rectangle and trapezoid. The gear tooth influence on the stresses in the flexspline
Hong Bing Xin +7 more
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Kinematic Error, Compliance, and Friction in a Harmonic Drive Gear Transmission
19th Design Automation Conference: Volume 1 — Mechanical System Dynamics; Concurrent and Robust Design; Design for Assembly and Manufacture; Genetic Algorithms in Design and Structural Optimization, 1993Abstract In this experimental examination, the behavior of harmonic-drive kinematic error, compliance, and friction was characterized. In particular, kinematic error was confirmed to appear primarily at frequencies that were multiples of the wave-generator rotational velocity, and static stiffness measurements were found to yield a range
Timothy D. Tuttle, Warren P. Seering
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Investigation of the Meshing Conditions of a Flat Wheel Harmonic Gear Drive
Volume 7: 10th International Power Transmission and Gearing Conference, 2007The function principle of the flat wheel harmonic gear drive is similar to the basic principle of the classical harmonic drives. The flexible and the solid gear of the drive are coaxial flat wheels. The rotating wave generator deforms periodically and elastically different portions of an annular face gear on the flexible member in axial direction into ...
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A Novel Harmonic Drive With Pure Involute Tooth Gear Pair
Journal of Mechanical Design, 2004Consider commercially available “harmonic drives” or “strain wave gearings” (all patented designs). The tooth profiles of the mating pairs of teeth of the noncircular (pitch curve) flex gear and circular (pitch circle) ring gears are nearly conjugate and noninvolute. Evidently none of them offers ideal gear kinematics.
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Stresses in flex gear of a novel harmonic drive with and without pay load
Australian Journal of Mechanical Engineering, 2022Vineet Sahoo +2 more
exaly
Kinematic Characteristics Analysis of Gear Teeth in Harmonic Drive
2023Guocheng Zhou +3 more
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