Results 31 to 40 of about 17,490 (206)

A Model for Analysis of Time-Varying Mesh Stiffness of Helical Gears with Misalignment Errors

open access: yesTransactions of FAMENA, 2021
A mathematical model is proposed to calculate the time-varying mesh stiffness (TVMS) of helical gears under the condition of gear misalignment by combining the slice method. The proposed method aims to reveal the influences of different misalignment errors (centre distance error, action plane error and off action plane error) on the TVMS of helical ...
He, Zeyin, Tang, Weiyi, Sun, Shizheng
openaire   +3 more sources

Dynamics analysis of hyperboloidal-type normal circular-arc gears

open access: yesNantong Daxue xuebao. Ziran kexue ban
To investigate the effects of meshing stiffness, transmission error, and backlash on the dynamic response of hyperboloidal-type normal circular-arc gears(HNCGs), a dynamical equation of the gear pair is established, and simulation analysis is conducted ...
CHEN Houjun; ZHANG Xiaoping; SHI Donghe; QU Chang
doaj   +1 more source

A method for static and dynamic load analysis of standard and modified spur gears [PDF]

open access: yes, 1983
The mesh stiffness and dynamic load characteristics for several cases of the Normal Contract Ratio and High Contact ratio gearing. The considered contact ratios were grouped in the general range of 1.7,2.0, and 2.3.
Kasuba, R.
core   +1 more source

Analytical modeling of spindle-tool dynamics on machine tools using Timoshenko beam model and receptance coupling for the prediction of tool point FRF [PDF]

open access: yes, 2006
Regenerative chatter is a well-known machining problem that results in unstable cutting process, poor surface quality and reduced material removal rate.
Budak, Erhan   +4 more
core   +3 more sources

NONLINEAR DYNAMIC RESPONSES OF LOCOMOTIVE EXCITED BY RAIL CORRUGATION AND GEAR TIME-VARYING MESH STIFFNESS

open access: yesTransport, 2022
Rail corrugation is usually generated in modern railway transportations, such as high-speed railway, urban railway, and heavy-haul railway. It is one of the major excitations to the wheel–rail dynamic interaction, which will cause extra vibration and noise, failures, or even risk of derailment to the vehicle and its components.
Chen, Zaigang   +3 more
openaire   +2 more sources

A Semi-analytical Calculation Method for Time-varying Meshing Stiffness and Transmission Error of Spiral Bevel Gear

open access: yesJixie chuandong, 2019
The traditional method of calculating time-varying meshing stiffness of spiral bevel gears mostly adopted finite element static analysis method, but it needed to be calculated many times, also the single tooth meshing stiffness calculated by the mean ...
Liao Ping   +3 more
doaj  

Comparison of the Time Varying Mesh Stiffness of Gears with Single and Multi-Mode Damage

open access: yesKey Engineering Materials
Gears in service conditions experience inevitable tooth damage. These damages can cause changes in the time-varying mesh stiffness depending on the mode of damage. The time-varying mesh stiffness of gears is an essential input in calculating gear dynamic responses.
Oreavbiere, Aselimhe, Khan, Muhammad
openaire   +1 more source

Stiffness Calculation and Influence Factor Analysis of Spur Gear Pair Considering Time-varying Friction

open access: yesJixie chuandong, 2019
Aiming at the problem of time-varying friction in the meshing process of spur gear pair, the meshing model of spur gear pair is established, and the relative sliding velocity, rolling speed, sliding-rolling ratio, comprehensive radius of curvature and ...
Tao Zhang   +3 more
doaj  

Dynamic Analysis of Helical Gears With Sliding Friction and Gear Errors

open access: yesIEEE Access, 2018
In helical gears, the meshing stiffness fluctuation caused by the time-varying contact lines and gear errors is a main factor affecting the dynamic characteristics of the helical gears.
Wenchao Mo, Yinghou Jiao, Zhaobo Chen
doaj   +1 more source

Numerical simulation of three-phase flow in an external gear pump using immersed boundary approach [PDF]

open access: yes, 2019
This paper presents a three-phase fully compressible model applied along with an immersed boundary model for predicting cavitation occurring in a two dimensional gear pump in the presence of non-condensable gas (NCG).
Gavaises, M.   +3 more
core   +1 more source

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