Optimization Design of Gear Comprehensive Modification for Large Speed Ratio Reducers based on MASTA
In order to optimize the vibration and noise level of the helical cylindrical gear transmission system of a certain high speed ratio reducer,it was conducted that the meshing and vibration noise simulation analysis of the first and second stage gear transmission by using MASTA.It was found that there were problems such as unbalanced load,stress concentra-tion,large vibration noise and so on,and there were significant transmission errors.With the goal of reducing transmission errors and tooth surface contact stress,tooth surface modification optimization design was carried out,and a tooth surface modification optimization model was established and solved.MASTA was used to analyze the modified model and conduct noise tests on its prototype to verify the effectiveness of tooth surface modification.The results showed that the MASTA a-nalysis results were in line with theoretical analysis,the simulation method was accurate,and the contact stress and trans-mission error of the modified gear were significantly reduced.The distribution of contact spots was uniform,and the vibra-tion noise was significantly reduced.Moreover,the first gear transmission had a more obvious effect than the second gear transmission.It could be seen that this optimized design scheme had a good effect on vibration reduction and noise reduction of reducers,which provided theoretical reference for the design of gears in such reducers.
万方数据
维普
