New Designed Bushings for Reaching Intended Stiffness Values and Their Analysis in Torque Rod of Heavy Commercial Vehicles

Year 2020, Volume: 7 Issue: 2, 33 - 41, 25.07.2020

Mustafa Taş Mehmet Ziya Okur , Sami Gökberk Biçer

Abstract

The combination of various parts designed to absorb shock and vibrations in all motor vehicles constitutes the suspension system. The torque rod with the bushings at both ends, an important component of the suspension system, is the connecting element used in heavy commercial vehicles to connect the axle to the chassis. Providing defined movements and isolating noise and vibrations of the torque rod and other suspension components can be achieved by the proper combination of metal and rubber. Rubber-metal parts (bushings and joints) contribute to the damping of axial and torsional loads and increase driving comfort. In this study, the stiffness values of the bushings of the torque rods which are used in heavy commercial vehicles were provided to be in the desired range. Geometric dimensions of the metal component and amount of rubber of the bushing was modified in order to improve the axial, radial, torsional and cardanic stiffness values of the bushings. The analyses were performed with the aid of FEM and dynamic test devices.

Keywords

Torque Rod, Bushings, Stiffness Values, Finite Element Method (FEM)

References

• [1] Türkdoğru N.G., “Aktif Süspansiyon Sistemlerinde Hata Tespiti ve Analizi” İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, Yüksek Lisans Tezi (2008).
• [2] İnternet: http://www.ditas.com.tr/urunler (Acsessed 6 September 2018)
• [3] Durmuş A, Özgün R.E., Ülkü S. “Kauçuk-Metal Burçlarda Kauçuk Sertliği ve Çaplama Işleminin Kopma Mukavemetine Etkisi” 5. Otomotiv Teknolojileri Kongresi (OTEKON2010), 07-08 Haziran 2010, Bursa, s.425-432 (2010).
• [4] Dahil L. “Effect on the Vibration of the Suspension System”, Metalurgija, 56, 3(4), 375-378 (2017).
• [5] Akkoyunlu, S. “Küresel mafsallarda aşınma dayanımının incelenmesi ve iyileştirilmesi” Ege Üniversitesi, Fen bilimleri Enstitüsü. Master Tezi (2008).
• [6] Güvenç M.A., Gürel E.G, Akdı S., Birol Y. “Otomotiv Süspansiyon Sistemlerinde Kullanılan Küresel Mafsalların Dinamik Yük Altında Yorulmaya Isıl İşlem Tekniklerinin Etkisi” 15. International Materials Symposium (IMSP’2014), 15-17 October 2014. Pamukkale University, Denizli (2014).
• [7] Yılmaz O, Samet K, Koçak H, Karataş Ç. “An investigation of manufacturing of assembled part by using chromium interface in powder injection molding process” Journal of the Faculty of Engineering and Architecture of Gazi University (2018).
• [8] Öncü I.C., Dova A., “Titreşim Sönümleme Elemanı Olan Kauçuk Burçta Çaplama İşleminin Ömre Etkisinin Sonlu Elemanlar Analizi ve Deneysel Çalışma ile İncelenmesi” Academic Platform Journal of Engineering and Science, 6-2, 10-18 (2018).
• [9] Güven C., Erkek M.Y., Kaya N. “Kauçuk Burçların Şekil Optimizasyonu” 7. Otomotiv Teknolojileri Kongresi (Otekon 2014), 26 - 27 Mayıs 2014, Bursa (2014).
• [10] Uludamar E, Taş M., Biçer S.G., Yıldırım C., Yıldırım E.A, Çelebi K. “Investigating the Effect of Weight Reduction of Rod-End in Drag-Link Product with Finite Element Analysis, Fatigue Test, and a Case Study” International Journal of Automotive Technology, 21 (2), 513-518 (2020).
• [11] Geren N., Akçalı O.O., Bayramoğlu M, “Parametric design of automotive ball joint based on variable design methodology using knowledge and feature-based computer assisted 3D modelling”, Engineering Applications of Artificial Intelligence, 66, 87-103 (2017).