Bilyalı rulman yerel kusurlarının neden olduğu titreşimlerin modellenmesi

Makinalarda sıklıkla kullanılan rulmanlardaki hasarın, titreşimlerin ölçülmesi ve analiziyle tespit edilebileceği birçok sayısal ve deneysel çalışmayla gösterilmiştir. Titreşimlerin analiziyle kusur tespitindeki en kritik nokta, kusurun rulmanın çalışmasını engelleyecek seviyeye gelmeden önce ve doğru olarak tespit edilebilmesidir. Bunun için kusur sonucu ortaya çıkan titreşim davranışının iyi bilinmesi gereklidir. Bu çalışmada açısal temaslı bir bilyalı rulmanın dış bileziğinde, iç bileziğinde ve yuvarlanma elemanında oluşan yerel kusurlar modellenmiş, rulmanda oluşan ezilmeler ve iç kuvvetler analiz edilmiştir.

Modeling of vibrations caused by localized defects in ball bearings

Condition monitoring of ball bearings by analyzing vibration signals is successfully applied both numerically and experimentally. The most critic point in vibration analysis is early and successful detection of defect formation. The characteristic vibrations due to these defects ought to be understood well enough for this reason. In this study, localized defects in balls and rings of an angular contact ball bearing are modeled and deformations at the contact between ball and rings as well as internal forces are analyzed.

PDF

___

1. Kanai, H., Abe, M. ve Kido, K., 1987, “Estimation of the Surface Roughness on the Race or Ball of Ball Bearing by Vibration Analysis”, Trans. ASME J. Vibration, Stress ve Reliability in Design, Vol. 109, pp. 60-68.
2. McFadden, P.D. ve Smith, J.D., 1984, “Vibration Monitoring of Rolling Element Bearings by the Hihg-Frequency Resonance Technique-A Review”, Int. J. of Tribology, Vol. 17, pp. 3-10.
3. Tandon, N. ve Choudhury, A., 1999, “A Review of Vibration and Acoustic Measurement Methods for the Detection of Defects in Rolling Element Bearigns”, Tribology Int., Vol.32, pp. 469-480.
4. McFadden, P.D. ve Smith, J.D., 1984, “Model for the Vibration Produced by a Single Point Defect in a Rolling Element Bearing”, JSV, Vol. 96(1), pp. 69- 82.
5. McFadden, P.D. ve Smith, J.D., 1985, “The Vibration Produced by Multiple Point Defects in a Rolling Element Bearing”, JSV, Vol. 98(2), pp. 263-273.
6. Tandon, N. ve Choudhury, A., 1997, “An Analytical Model for the Prediction of the Vibration Response of Rolling Element Bearing due to Localized Defect”,JSV, Vol.205(3), pp. 275-292.
7. Kiral, Z. ve Karagülle, H., 2003, “Simulation and analysis of Vibration Signals Generated by Rolling element Bearing with Defects”, Tribology Int., Vol. 36, pp. 667-678.
8. Sopanen, J. ve Mikkola, A., 2003, “Dynamic Model of a Deep-groove Ball Bearing Including Localized and Distributed Defects. Part 1: Theory”, Proc. IMechE Part K: J. of Multi-body Dynamics, Vol 217, pp. 201-211.
9. Sopanen, J. ve Mikkola, A., 2003, “Dynamic Model of a Deep-groove Ball Bearing Including Localized and Distributed Defects. Part 1: Theory”, Proc. IMechE Part K: J. of Multi-body Dynamics, Vol 217, pp. 213-223.
10. Karaçay, T. “Açısal Temaslı Rulmanlarla Yataklanmış Şaftların Dinamiği Ve Rulman Hatalarının Deneysel Analizi”, Doktora Tezi, Gazi Üniversitesi, Fen Bilimleri Enstitüsü, Ankara, 2006.
11. Ho, D. ve Randall, R.B., 2000, “Optimisation of Bearing Diagnostic Techniques Using Simulated and Actual Bearing Fault Signals”, MSSP, Vol. 14(5), pp. 763-788.
12. Brie, D., 2000, “Modelling of the Spalled Rolling Element Bearing Vibration Signal: An Overview and Some New Results”, MSSP, Vol. 14(3), pp. 353-369.