Investigation of the effects of surface roughness on stress distribution and moment carrying capacity at shrink‐fitted joints

Abstract

An important design parameter in shrink‐fitted joints is the average surface roughness values of the shaft and hub. During assembly, the surface roughness is crushed and the theoretical tightness value decreases between the shaft and the hub. The decrease in the tightness value negatively affects the joint performance. In this study, six models with six different surface roughnesses were created using ANSYS finite element analysis program. Then, the effects of surface roughness on the stress distribution and moment bearing capacity of the shaft‐hub joints are examined numerically and analytically. Lame equations were used in the analytical study. As a result of the study, it was determined that the surface roughness values significantly affect the stress distribution and moment bearing capacity in the shaft‐hub joints

Investigation of the effects of surface roughness on friction behavior in hydrodynamic radial plain bearings

“…Yapılan çalışmalar pürüzlüğün azalmasıyla birlikte yataktaki yük taşıma kapasitesinin arttığını ortaya koymaktadır, (Burwell vd., 1941). Yüzey pürüzlülüğünün yatak performansına etkilerinin literatürde birçok yaklaşım modellerine ait nümerik ve analitik çalışmalar oldukça mevcut iken (Bhaskar vd., 2013;Eric vd., 1999;Saraç, 2022;Bhuvaneshwari vd., 2014), gerçek şartlarda yüzey pürüzlüğünün deneysel çalışmaları ise sınırlı kalmaktadır. Bu nedenle, bu çalışmada özellikle sınır ve karışık sürtünme bölgesinde yüzey pürüzlüğünün yatak performansı üzerindeki etkileri deneysel olarak ele alınmıştır.…”