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http://dx.doi.org/10.9725/kts.2020.36.1.34

Stress and Life Evaluation of Universal Joint of Cardan Shaft for Waterjet System of Special-Purpose Vehicle  

Bae, Myungho (Dept. of Aviation Maintenance, Changwon Moonsung University)
Lee, Taeyoung (Katem)
Cho, Yonsang (Dept. of Mechanical Engineering, DongA University)
Publication Information
Tribology and Lubricants / v.36, no.1, 2020 , pp. 34-38 More about this Journal
Abstract
The powertrain of the waterjet system of a special-purpose vehicle makes use of the cardan shaft, which is composed of universal joints and shafts. These universal joints, composed of spiders and needle roller bearings, have to be designed with consideration for the bending and compressive stresses of the spiders and needle roller bearings, and the rating lives of the bearings. The bending and compressive stresses of the spider and bearing of a universal joint have been studied by many researchers. However, to design a universal joint effectively, overall consideration of the different specifications of needle roller bearings is necessary. In this study, the bending stresses of spiders and compressive stresses of needle roller bearings are calculated to design universal joints for powertrain cardan shafts with different roller diameters of bearing. Furthermore, the rating lives of the needle roller bearings are predicted using the calculated basic dynamic load ratings of the bearings. As a result, roller diameters less than 𝜙2.5 mm are found suitable through an analysis of the bending stress of the spider. All compressive stresses between spider and bearing, regardless of roller diameter, satisfy the requirements. Moreover, roller diameters of more than 𝜙2 mm are found suitable for the required rating life.
Keywords
universal joint; spider; needle roller bearing; bending stress; compressive stress; rating life;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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