具滑動軸承二級齒輪減速箱之振動特徵模擬與最適軸承間隙選配

Vibration Analysis and Bearing Clearance Selection of a Two-stage Gear Reducer with Sliding Bearings

陸郁仁(Yu-Ren Lu) ； 吳育仁(Yu-Ren Wu)

《應用聲學與振動學刊》 8卷1&2期 (2016/12) Pp. 17-26

https://doi.org/10.6282/JASV.2016.8.1.2.03

摘要

本文旨在建立一具滑動軸承二級齒輪減速箱之多體動力分析模型，以模擬油膜動壓下對齒輪及轉軸之振動特徵，並以理論與量測值進行驗證，最終給予一最適之軸承間隙組合。研究中依據軸負載建立數學模型計算油膜動態阻尼及剛度，並於多體動力學分析軟體RecurDyn 中進行簡化模型建立，用以模擬齒輪動載下轉速及接觸力訊號，並與實際振動加速度量測訊號驗證模型之等效性；最後，利用田口法對軸承間隙進行最適選配，以最小化轉速波幅及齒輪嚙合力波幅為設計目標，建立一套具滑動軸承齒輪減速箱之設計流程。

關鍵字

齒輪減速箱 ； 滑動軸承 ； 轉速波幅 ； 軸承間隙

並列摘要

This study aims to establish the multi-body dynamic model for a two-stage gear reducer with sliding bearings in purpose to simulate the vibration characteristics of the gear-shaft-bearing system which is supported by the oil dynamic pressure. The theoretical calculation and practical experiments are also practiced to validate the reliability and accuracy of established model. Further, a set of bearing clearance values is suggested by using Taguchi's method to reduce the rotation speed fluctuation of the gear reducer as well as the vibration and noise.

並列關鍵字

Gear Reducer ； Sliding Baring ； Rotation Speed Fluctuation ； Bearing Clearance