考慮交變負荷和擠壓膜之軸頸軸承分析

Ａnalysis of journal bearings under consideration of varying loading and squeezed film

高裕翔(Yu-Siang Gao)

指導教授 ： 蘇侃

國立臺灣大學/工學院/機械工程學研究所/碩士(2008年)

https://doi.org/10.6342/NTU.2008.03216

摘要

本文分析軸頸軸承在交變負荷下的運動軌跡，並考慮了溫度方程式、雷諾方程式以及運動方程式。利用有限差分法、四階朗基-庫特法解出共偶的此三個方程式，以機車引擎曲軸軸承作為分析的資料，而汽缸爆炸的衝擊力做為分析的交變負荷，最後分析的結果顯示:在同一爆炸週期中，可獲得軸心之穩定軌跡，同時顯示軸承動態之負載能力遠大於靜態。

關鍵字

軸頸軸承 ； 交變負荷 ； 擠壓膜項

並列摘要

This thesis analyzes dynamic orbits of journal bearings by using adiabatic equation , Renold’s equation , and motion equation .By using finite difference method , 4th order Runge-Kutta method of numerical analysis there three couple equations can be solve.
Taking a journal bearing employed in motorcycle as an example. The results show that: A steady orbit was obtained for an explosion cycle and that the dynamic loading capacity of the bearing was much higher than the steady one.

並列關鍵字

journal bearing ； varing loading ； squeezed film term

參考文獻

2. Kim, J. , Palazzolo, A., and Gadangi, R. “Dynamic characteristics of TEHD tilt pad journal bearing simulation including multiple mode pad flexibility model.” ASME, v 117, n 1, Jan, 1995, p 123-135

3. So, H. and. Chang, T. S. “Characteristics of a Hybrid Journal Bearing with One Recess Part 2: Thermal Analysis”, Tribology International, February 1986, Vol. 19, No. 1, pp.11-18.

4. So, H. and. Chang, T. S. “Characteristics of a Hybrid Journal Bearing with One Recess Part 1: Dynamic Considerations”, Tribology International, December 1986, Vol. 18, No. 6, pp.331-339.

5. So, H. and. Chang, T. S. “Characteristics of a Hybrid Journal Bearing with One Recess Part 2: Thermal Analysis”, Tribology International, February 1986, Vol. 19, No. 1, pp.11-18.

6. So, H. and. Chang, T. S. “Characteristic of an oil squeeze film” ASME J. oF Lub.Tech .Vol.104 1982