Results 21 to 30 of about 207 (124)
Topological Optimization Design and Analysis of Ultra-short Harmonic Flexspline
Jixie chuandong, 2020 In order to study the ultra-short harmonic reducer with high performance， the topology optimization theory is introduced into the design of harmonic flexspline design. The objective function of stiffness is defined based on compromise programming method，
Yan Li +3 more
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Deformation Investigations on the Flexspline with the Conic Curve Combined Cam Wave Generator
Mathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021 The deformation of the flexspline and the meshing quality are largely determined by the profile of a wave generator. The wave generator with a combined profile can effectively reduce or improve the deformation stress and strain of the flexspline for improving the transmission efficiency and reducing wear or noise.
Shuyan Wang +3 more
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Modeling and Fatigue Characteristic Analysis of the Gear Flexspline of a Harmonic Reducer
Mathematics, 2022 The failure of harmonic gear drive is mainly caused by the fatigue fracture of flexible wheels and the fatigue damage of flexible bearings. In this paper, the stress sensitivity and fatigue life characteristics of flexible wheels with thin-walled vulnerable components are studied. Firstly, the structure of the flexible wheel of a B3-80 general harmonic
Hexu Yang +4 more
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A Refined Dynamic Model of Harmonic Drive and Its Dynamic Response Analysis
Shock and Vibration, Volume 2020, Issue 1, 2020., 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. A dedicated experimental apparatus based on double motor twisting is constructed to measure the characteristics of harmonic ...
Xian Zhang +5 more
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Disturbance Elimination for the Modular Joint Torque Sensor of a Collaborative Robot
Mathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020 The ability to obtain accurate torque information and detect collision information is the key demand for collaborative robots. Given the highly integrated modular joint, the joint torque‐sensing system is disturbed by other elements during online measurement, affecting the accuracy of measurement.
He Zhang +6 more
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A Novel Strain Wave Gear Reducer with Double Flexsplines
Actuators, 2023 Strain wave gear reducers, also known as harmonic drives, are widely used in industrial robots and collaborative robots. The zero-backlash feature is very important for these applications. However, this places extremely high demands on the machining accuracy of the strain wave gear reducer. Excessive manufacturing errors will lead to excessive backlash,
Zilong Ling +6 more
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A Mathematical Model for Parametric Tooth Profile of Spur Gears
Mathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020 Spur gears are widely used transmission components. In the traditional design process, the noninvolute part of the tooth profile curve is difficult to describe with mathematical equations. This article puts forward a new parametric modeling method, which can describe the modified involute part of spur gears and parameterize and optimize the transition ...
Guodong Zhai +3 more
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Research on the effects of geometrical parameter of flexspline on harmonic reducer [PDF]
Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering, 2015 The paper obtains the equivalent stress of the two kinds of flexsplines after inserted into the wave generator according to the principle of harmonic gear reducer and using finite element method got different flexspline models with different length and length of the gear tooth to study how these factors influence their equivalent stress.
Rui Mu, Changzhong Hao, Kai Fu
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Mathematical Problems in Engineering, Volume 2018, Issue 1, 2018., 2018 For a class of nonlinear harmonic gear drive systems with mismatched uncertainties, a novel robust control method is presented on the basis of quadratic integral sliding mode surface, and the closed‐loop system has satisfying performance and strong robustness against mismatched uncertainties and nonlinear disturbances.
Runze Ding +2 more
wiley +1 more source
International Journal of Aerospace Engineering, Volume 2018, Issue 1, 2018., 2018 We propose a Bayesian‐based reliability framework for a satellite‐equipped harmonic gear drive (HGD) mainly addressing two unsettled issues in existing research works, that is, an efficient aggregation method for multilevel system with imbalanced information and the multisource data fusion in a hierarchical structure. The proposed approach improves the
Lechang Yang +5 more
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