Fracture Analysis of Toughness Fracture Failure on Flexspline of Harmonic Reducers During the Service [PDF]
TeshugangThe reasons of the fatigue failure of flexspline are analyzed by observation analysis， observation and hardness determination of fracture morphology of microstructure.
Mu Xiaobiao, Zhang Yongqi, Gao Minyan, Yang Guoqiang, Zhang Chaolei
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Improving the Efficiency of Electric Rolling Stock Operation Through the Use of Adaptive Filtering Methods for High Harmonic Current Components in Traction Drive Systems [PDF]
Problems of the Regional Energetics, 2023 The aim of this work is to investigate the efficiency of various adaptive filtering methods for higher harmonic components of stator currents in a vector-controlled traction drive system to improve the operation efficiency of electric rolling stock.
Goolak S.
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Torsional Performance Analysis of Oldham Coupling for Harmonic Drive [PDF]
한국정밀공학회지, 2021 The robot industry has greatly improved over the past 50 years. It is expected that in the era of the 4th industrial revolution the field of applying robots will expand. Motors are essential in order to operate and control robots.
Joo Yeon Kim, Dae Sung Bae, Jae Duk Jang
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Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2022 Harmonic reducer is a transmission device with high transmission ratio and high accuracy, which is widely used in robotics and other instruments. Backlash reflects the positioning accuracy of harmonic drive, which is one of the key performances of ...
Yazhen WANG, Yipeng CHEN
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Modeling of Transmission Compliance and Hysteresis Considering Degradation in a Harmonic Drive
Applied Sciences, 2021 Transmission compliance and hysteresis behaviors are associated with harmonic drives. The experimental observation of a harmonic drive showed that these behaviors are significantly degraded with increasing service time, and their accurate modeling is ...
Ting Tang +4 more
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A Refined Dynamic Model of Harmonic Drive and Its Dynamic Response Analysis
Shock and Vibration, 2020 To highlight the key factors which influence the dynamic performance of the harmonic drive, a refined harmonic drive model considering nonlinear stiffness, kinematic error, and friction of the critical components is established.
Xian Zhang +4 more
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Sensorless five-phase induction motor drive with third harmonic injection and inverter output filter [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2020 The paper presents a sensorless control approach for a five-phase induction motor drive with third harmonic injection and inverter output filter. In the case of the third harmonic injection being utilised in the control, the physical machine has to be ...
P. Strankowski +4 more
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Compound optimal control of harmonic drive considering hysteresis characteristic [PDF]
Mechanical Sciences, 2019 Hysteresis behavior widely exists in the transmission process of harmonic drives. Eliminating the hysteresis effect is highly desired in the high-precision mechanical transmission, which results in challenges in the control design.
Q. Lu, T. Gang, G. Hao, L. Chen
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Journal of Advanced Mechanical Design, Systems, and ManufacturingVarious coordinate systems have been used in tooth profile analysis for cylindrical gears. An effective approach to tooth profile expression using normal polar coordinates is proposed.
Yuya MURAYAMA +3 more
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Nonlinear study of injection process types into the traveling wave tube with hollow electron beam
Journal of Theoretical and Applied Physics, 2019 In this paper, examples of all types of signal injection such as different signal , harmonic signal and multiple signal injections in a TWT including hollow electron beam near frequency 1800 MHz and within input powers lower than TWT saturation power has
H. Bayati, S. Saviz, A. H. Sari
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