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Gear Synchronizer Flow Field Analysis And Synchronicity Research

Posted on:2012-06-21Degree:MasterType:Thesis
Country:ChinaCandidate:Y W ChenFull Text:PDF
GTID:2212330338491352Subject:Mechanical and electrical engineering
Abstract/Summary:PDF Full Text Request
Gear Type Flow Divider is widely used in metallurgy, water conservancy, engineering machinery, for it is very easy to fit and debugging. But at present domestic related products accuracy also isn't up to scratch.Through the synchronizer internal flow field of research, In order to further improve the gear of shunt provide theoretical basis for shunt accuracy, This article from the internal flow field, Using FLUENT software of the internal flow field in regional numerical simulation. Through setting different structural parameters, find out the main factors of influence shunt accuracy.First, by surveyed and mapped a foreign brand product, then establish the gear motor shunt geometric modeling, and eatabished the modeling using the measured dimension. It has rendered accurate involute gea through CAXA software. The internal flow field of the gear motor was meshed using FLUENT Gambit former processor. Due to the grid huge, and computer hardware limitations, the computer models are parallel computing solution.Secondly, for seeking the relationship of shunt error and the motor speed, tooth crest and shell clearance, differential pressure, according to the actual working condition, set up different speed, shell and tooth crest of inner-space value, differential pressure value; Introducing standard k-turbulence model, setting the boundary conditions of flow field analysis, using dynamic grid technology to solve the model. Using FLUENT soft monitor function, set flow detection. Gear motor respectively on the export of shunt flow test. Using FLUENT software detected flow data import EXCEL for graphical processing, can get the two export flow value of the gear motor shunt.Limited to computer condition limit and the haste, here I just analysis the four situation. Finally, analyzed the FLUENT software simulation results, the flow measuring data, and the pressure of convective of the gear motor shunt's internal flow field. According to different parameters to detect flow value analysis synchronization error, flows pulsation. Utilizing pressure image analysis trapped oil phenomenon. The results obtained are analyzed. The diversion error of the gear motor shunt were given in in different load, different speed, different tooth crest and shell clearance value under the condition the leakage of gear eed is not considered. The correctness of the theoretical reasoning was verified through simulation and calculation of flow pulsation. Pocketed oil phenomenon was simulated in detali through the simulation analysis of pressure image And there are specific numerical to illustrate the harm of pocketed oil phenomenon.
Keywords/Search Tags:Gear Type Flow Divider, Flow field analysis, FLUENT, Flow divide precision, Tooth crest and shell clearance
PDF Full Text Request
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