Results 31 to 40 of about 8,182 (119)

Effects of Wear, Backlash, and Bearing Clearance on Dynamic Characteristics of a Spur Gear System

IEEE Access, 2019
A six-degree-of-freedom gear pair torsional vibration model considering time-varying stiffness, damping, dynamic backlash, bearing radial clearance and comprehensive wear of the tooth surface is established by using the lumped mass method in this paper ...
Ying-Kui Gu, Wen-Fei Li, Jun Zhang, Guang-Qi Qiu   +3 more
doaj   +1 more source

Basic study on transmission error for gear made from different metals laminated in width direction to provide rigidity distribution

Mechanical Engineering Journal, 2023
To improve the load characteristics of the transmission error for helical gears, a gear made of laminated materials is proposed. The gear has three layers in which metals with different rigidities are laminated in the tooth width direction. The layers on
Fumitaka YOSHIZUMI, Takayuki AOYAMA, Yoshikatsu SHIBATA   +2 more
doaj   +1 more source

Reducing Tolerance‐Induced Spread on Transmission Error in Planetary Gear Stages Using Monte Carlo Simulations and Surrogate Models Acquired From a Design of Experiments Approach

Wind Energy
Significant variations in tonality levels are frequently observed among nominally identical wind turbine drivetrains, both in industrial test setups and during field operations, posing challenges to compliance with noise emission standards.
Bart De Smet, Jordi Marco I. Jordan, Bart Blockmans, Philip Becht, Nico De Bie, Frank Naets   +5 more
doaj   +1 more source

Explores for the source of the gears in traditional Japanese clock (Wadokei)

Nihon Kikai Gakkai ronbunshu, 2017
The purpose of this study is to understand the nature of one of the oldest gears used in traditional Japanese clock. Today's gear manufacturing technology in Japan came mostly from Europe and America, but we do not know exactly, when and how the ...
Akio UEDA, Jun WATANABE, Miyako MIYAZAKI, Aizoh KUBO, Hiroaki MATSUOKA   +4 more
doaj   +1 more source

Optimal Measurement Speed and Its Determination Method in the Transmission Precision Evaluation of Precision Reducers

Applied Sciences, 2019
Transmission error is the key index for characterizing the transmission precision of precision reducers, and its accurate measurement is significant for the precision evaluation of precision reducers.
Hang Xu, Zhaoyao Shi, Bo Yu, Hui Wang
doaj   +1 more source

Errors in Approximations to Maximum Transmissibility [PDF]

The Journal of the Acoustical Society of America, 1959
The error in using transmissibility at the undamped natural frequency in place of the maximum transmissibility of a single-degree-of-freedom system is less than 4% for all values of the damping ratio. The error is a maximum for a damping ratio of about 0.6 and decreases with both increasing and decreasing values of the damping ratio. The error in using
openaire   +1 more source

Investigation of the impact of cycloidal gear pin tooth wear on transmission error in precision planetary cycloidal reducers

International Journal of Metrology and Quality Engineering
In light of the alteration pattern of transmission error following wear of a cycloid gear and needle tooth, this study employs the precision planetary cycloidal 80E reducer as an example.
Xu Hang, Wei Chenzhou, Gui Wei, Yang Shufeng, He Yuanchun, Xie Guiping, Wu Yaoting   +6 more
doaj   +1 more source

Tooth contact analysis and manufacturing of dual lead worm gears in ISO type I

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2018
In this paper, the tooth contact pattern and transmission errors of dual lead worm gears in ISO type I are analyzed using tooth contact analysis (TCA) and the worm gears are manufactured.
Shigenori HAMADA, Kazumasa KAWASAKI, Isamu TSUJI   +2 more
doaj   +1 more source

A Method for Analyzing the Meshing Contact Performance of Real Tooth Surfaces of Spiral Bevel Gears

Lubricants
The meshing contact performance of spiral bevel gears is critical for transmission accuracy and service life but is inevitably influenced by manufacturing deviations.
Jing Deng, Hao Yang, Tianxing Li, Chuang Jiang, Shaoyang Li   +4 more
doaj   +1 more source

Research on the seedling picking trajectory error of the gear train seedling picking mechanism considering tooth backlash

Engineering Reports
The research investigated the tooth backlash influences the error in seedling picking trajectories of the gear train SPM. First, a sine function and the sum of random errors are taken into account is utilized to fit the tooth backlash of the firstly and ...
Fengjiao Du, Jiangang Liu, Peng Qi
doaj   +1 more source