Results 241 to 250 of about 17,843 (276)

Compensation for synchronous component of angular transmission errors in harmonic drive gearings

2010 11th IEEE International Workshop on Advanced Motion Control (AMC), 2010
This paper presents a modeling and compensation methodology for angular transmission errors in harmonic drive gearings. In this research, effects of synchronous component in the transmission error on the positioning performance are analytically examined.
Masafumi Yamamoto, Makoto Iwasaki, Makoto Kainuma, Yoshifumi Okitsu, Kato Yuki, Kozo Sasaki, Toshio Yajima   +6 more
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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), 1999
Synchronous 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, null Jeong Won Choi, null Suk Gyu Lee   +2 more
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Modified Model Predictive Control for a Positioning Mechanism with Harmonic Drive Gear

2015 25th International Conference on Computer Theory and Applications (ICCTA), 2015
Servo actuators, mechanisms used to produce or control motion in mechanical systems, provided with harmonic drives have been widely used in many applications such as industrial precision positioning mechanisms. However, harmonic drives exhibit performance features more turbulent than that of conventional gear transmissions.
Esam H. Abdelhameed, Tarek Hassan Mohamed, Makoto Iwasaki   +2 more
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Modeling and compensation for angular transmission error in harmonic drive gearings

IEEJ Transactions on Electrical and Electronic Engineering, 2009
AbstractThis 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, Makoto Iwasaki, Hiromu Hirai, Yoshifumi Okitsu, Kozo Sasaki, Toshio Yajima   +5 more
openaire   +1 more source

Study on the Gear Tooth Influence Coefficients of Flexspline of Harmonic Drive

Advanced Materials Research, 2013
The 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, Han Ning Mo, Jian Cheng Gao, Wen Jing Wang, Deng Qi Cui, Long Liu, Tan Wang, Yue Fei 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, 1993
Abstract 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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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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Fuzzy impedance control based on a built-in torque sensor in harmonic drive gear

2017 IEEE International Conference on Robotics and Biomimetics (ROBIO), 2017
To meet the intrinsically safe demands for joint torque measuring and joint compliance in collaborative manipulator (co-manipulator), a torque measuring method by using a built-in torque sensor in harmonic drive gear (HDG) has been improved. Based on that novel torque sensor, fuzzy impedance control strategy is proposed and tested in a physical ...
Xiaowei Tan, Yong Jiang, Yifeng Song, Guowei Liu, Zhengguo Zhu   +4 more
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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, 2007
The 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, 2004
Consider 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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