Abstract
The pre-research project aims to propose a method of optimizing tooth surface modification (TSM) fitting under thermoelastic lubrication (TEL) conditions to reveal the most popular and concerned mechanism issues in the field of mechanical engineering. This is an exploratory study, mainly considering the gear comprehensive error and TSM state of TEL contact interfaces are extremely harsh, which complicates simulation analysis and optimal design. TSM simulation has fitted numerically agreement with optimized results obtained experimentally, which means that they can, whether isolated or by using a multiscale coupling method, start to be adopted to revise, and verify meta-models for thermoelastic characteristics (TECs) under TEL problems. This subject involves the TSM fitting of the theoretical teeth surface superimposed structure, and performs 3D and diagonal modification optimization design, obtains the modified surface position and normal vectors, according to load teeth contact analysis (LTCA), a variety of optimized modification models are established and complex curved surfaces are analyzed to fit the actual gear teeth surface thermoelastic contact numerical simulation, which has been further demonstrated and expressed in the type experiment combined with actual key working conditions and multiple influencing parameters, which is of great significance to the development of modern gear transmission system.
Highlights
The tooth surface modification (TSM) fitting optimization is related to the manufacturing and installation errors and the meshing impact caused by the thermoelastic deformation of alternating meshing.[1]
The uniform teeth surface pressure makes the teeth profile deformation run smoothly, reduces the vibration noise and attenuates the impact, in order to improve the influence of thermoelastic deformation of teeth surface on gear transmission performance and improve the anti-scuffing bearing capacity of teeth surface, which should not be ignored in the analysis of gear vibration noise and description of meshing gears instantaneous contact interface lubrication.[2,3,4]
(1) The results show that there is no edge contact after three-dimensional topology modification, but the teeth tip edge contact cannot be avoided after diagonal modification
Summary
The TSM fitting optimization is related to the manufacturing and installation errors and the meshing impact caused by the thermoelastic deformation of alternating meshing.[1]. The empirical simplified formula has been difficult to adapt to the technical requirements of high-index GTSs. Many scholars have carried out a lot of research work in the field of TSM and obtained results for reference.[18,19,20] Related to the key characterization index of gear mesh stiffness density, the load transmission error (LTE) of the gear pair is further realized from twodimensional teeth profile modification to threedimensional TSM and static trajectory to dynamic target parameter process step. The gears comprehensive error and TSM status and precise teeth surface geometric parameters have been noted, and the modified surface position and normal vectors have been deduced, in view of the multiple TSM optimized meta-models, the thermoelastic contact numerical simulation of complex curved surface fitting the actual teeth surface is analyzed to reduce the transmission error and vibration noise in order to improve meshing gear teeth thermoelastic anti-scuffing load-bearing performance.
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