Results 301 to 310 of about 175,182 (345)

Cotunneling rate on harmonic drive and triangle drive

Proceedings of 20th Biennial Conference on Precision Electromagnetic Measurements, 2002
In a single electron pump operated by harmonic drive and triangle drive, the cotunneling rate is calculated based the adiabatic and non-adiabatic tunneling model. The result shows that the cotunneling rate operated by the harmonic drive is larger than by the triangle drive in the case of adiabatic tunneling (i.e.
A. Iwasa, A. Fukushima, Y. Sakamoto
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Dynamics and Control of Instrumented Harmonic Drives

Journal of Dynamic Systems, Measurement, and Control, 1995
Since torque in harmonic drives is transmitted by a pure couple, harmonic drives do not generate radial forces and therefore can be instrumented with torque sensors without interference from radial forces. The installation of torque sensors on the stationary component of harmonic drives (the Flexipline cup in this research work) produce backdrivability
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Adaptive Control of Harmonic Drives

Journal of Dynamic Systems, Measurement, and Control, 2006
Aimed at achieving ultrahigh control performance for high-end applications of harmonic drives, an adaptive control algorithm using additional sensing, namely, the joint and motor positions and the joint torque, and their practically available time derivatives, is proposed.
Wen-Hong Zhu, Erick Dupuis, Michel Doyon
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Precision Control of Robots with Harmonic Drives

Proceedings 2007 IEEE International Conference on Robotics and Automation, 2007
Aimed at achieving ultra-high precision control performance for high-end applications of robots equipped with harmonic drives, an adaptive joint torque controller developed previously is extended to all the joints of seven degrees of freedom (DOF) robot manipulator using four different types of harmonic drives.
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Harmonic drives in tune with robots

Industrial Robot: An International Journal, 1994
Outlines the development of mechanical transmission elements used to drive industrial robots. Examines the performance requirements for precision gears and actuators, concentrating on harmonic drive reduction gearing and the key features which make it superior to conventional transmissions.
Rolf Slatter, Graham Mackrell
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The Mechanical Efficiency of Harmonic Drives: A Simplified Model

Journal of Mechanical Design, 2020
Abstract Harmonic drives are widely used devices in robotic and space applications. As for any device transmitting motion, its mechanical efficiency is one of the main concerns for the designer. In this paper, it is proposed a new model to estimate this significant feature.
Gravagno F., Mucino V. H., Pennestri Ettore   +2 more
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Harmonic analysis of slip-power recovery drives

IEEE Transactions on Industry Applications, 1992
A method of evaluating harmonic currents and voltages associated with slip power recovery drives is presented. The rectifier commutation overlap and DC link current ripple are included in the analysis by using a hybrid between the traditional d-q and a-b-c induction motor models. The harmonic components are determined from closed-form expressions which
Baghzouz, Yahia, Azam, M.
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Harmonic approximation of velocity oscillations in electrical drives

2016 IEEE Conference on Control Applications (CCA), 2016
The accuracy of an electrical drive moving at constant velocity significantly depends on the performance of the applied velocity estimation algorithm. In this paper, this dependence is investigated for estimation algorithms, which use digital filters and quantized encoder measurements. Assuming that the velocity controller, the estimation algorithm and
Viktor Kisner, Eric Lenz, Arne Wahrburg, Kim D. Listmann, Ulrich Konigorski   +4 more
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Analysis of structural vibration characteristics of Harmonic drive

2014 11th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI), 2014
We suggest experimental FFT Anlayzer system which analyzes static structural vibration and dynamic structural vibration of Harmonic drive used in the precision machining and Handling part in industry field and we also analyze characteristics of static structural vibration and dynamic structural vibration of Harmonic drive from advanced company to prove
Cheong Yoo, In-Gyu Park, Woong Choi
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A torque sensing technique for robots with harmonic drives

IEEE Transactions on Robotics and Automation, 1993
The authors propose a joint torque sensing technique making use of the existing structural elasticity of robots. The technique provides joint torque sensing without reducing the stiffness of the robot or changing the mechanical structure of the joints. The elasticity of the flexsplines of the harmonic drives is utilized to measure the joint torque. The
Minoru Hashimoto, Yoshihide Kiyosawa, Richard P. Paul   +2 more
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