Results 31 to 40 of about 724 (198)

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, Qiuping Liu, Yang Wang, Qianqian Liu   +3 more
doaj   +1 more source

Research on Load Stress in Bottom of Ultra-short Flexsplines of Harmonic Drives

Jixie chuandong
In order to reveal the stress distribution law of a bottom of the ultra-short flexspline under load, a theoretical calculation method of the load equivalent stress of the bottom of the flexspline is proposed.
Li Yifu, Chen Xiaoxia, Xing Jingzhong, Chen Liang   +3 more
doaj   +1 more source

Parametric analysis of tooth surface characteristics of flexspline in harmonic reducer after hobbing

Mechanism and Machine Theory
Chaosheng Song, Mengtang Li, Caichao Zhu   +2 more
exaly   +2 more sources

Analysis of Contact Mechanical Characteristics of Flexible Parts in Harmonic Gear Reducer

Shock and Vibration, 2021
Harmonic gear reducer is widely used in industrial robots, aerospace, optics, and other high-end fields. The failure of harmonic gear reducer is mainly caused by the damage of flexible bearing and flexspline of thin-walled vulnerable components. To study
Fanjie Li, Xiaopeng Li, Yajing Guo, Dongyang Shang   +3 more
doaj   +1 more source

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, Tao Tao, Gedong Jiang, Xuesong Mei, Chuang Zou, F. Viadero   +5 more
wiley   +1 more source

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, Wenlei Qin, Yongsheng Gao, Qiang Li, Zhigang Chen, Jie Zhao, Carlos Llopis-Albert   +6 more
wiley   +1 more source

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, Zhihao Liang, Zihao Fu, Giuseppe Vairo   +3 more
wiley   +1 more source

Research on finite element helical line direction modification of flexspline profile in harmonic reducer

Jixie qiangdu
To solve the stress concentration problem caused by tooth interference and insufficient tooth surface contact during the operation of harmonic reducers, an axial modification method based on the finite element method (FEM) was proposed.
ZHOU Weihong, WANG Zhonghou, CHEN Mingzhi, WANG Fa, MA Jingkai   +4 more
doaj   +1 more source

Quadratic Integral Sliding Mode Control for Nonlinear Harmonic Gear Drive Systems with Mismatched Uncertainties

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, Lingfei Xiao, Javier Martinez Torres   +2 more
wiley   +1 more source

Reliability Analysis to a Satellite‐Equipped Harmonic Gear Drive Subjected to Multisource Data and Imbalanced Information

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, Ketai He, Yanhua Du, Yanling Guo, Pidong Wang, Paul Williams   +5 more
wiley   +1 more source