Effect of vehicle ride on the fatigue life of a lower arm ball joint /
Ground vehicles undergo broad range of vibrations throughout their operational lifetime which not only produce discomfort for the passengers, but also affect the life of suspension components. Consequences of those vibrations on front suspension ball joint have been studied in this thesis by combini...
Saved in:
| Main Author: | |
|---|---|
| Format: | Thesis |
| Language: | English |
| Subjects: | |
| Online Access: | Click here to view 1st 24 pages of the thesis. Members can view fulltext at the specified PCs in the library. |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Ground vehicles undergo broad range of vibrations throughout their operational lifetime which not only produce discomfort for the passengers, but also affect the life of suspension components. Consequences of those vibrations on front suspension ball joint have been studied in this thesis by combining rigid body dynamics with finite element analysis. MacPherson quarter was modelled in CATIA V5 and simulated in ANSYS Workbench by giving random road profile as the system input in which three different type of dampers were defined to obtain three different ride qualities. Reaction forces occurring at the ball joint were calculated and based on the results, stress analysis was conducted. High stress concentrations were found mainly at the neck region and at the contact area between the ball joint and its socket. Highest magnitude of stress occurred with the best ride quality while lowest amount of stresses were found when the ride quality was worst. Using these stress results, fatigue lives of the ball joint were determined and compared against each ride quality. It was concluded that the comfortable ride has significant impact on suspension ball joint and manufacturers need to have a trade-off between ride quality and life of suspension components. |
|---|---|
| Physical Description: | xv, 65 leaves : illustrations ; 30cm. |
| Bibliography: | Includes bibliographical references (leaves 57-59). |