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Investigation of Critical Stress Combinations for Turbine Input Shaft of Transaxle Automotive Automatic Transmission
Current Issue
Volume 4, 2017
Issue 2 (March)
Pages: 13-20   |   Vol. 4, No. 2, March 2017   |   Follow on         
Paper in PDF Downloads: 105   Since Feb. 2, 2018 Views: 978   Since Feb. 2, 2018
Authors
[1]
Nagwa Ahmed Abdel-halim, Automotive Engineering Department, Faculty of Engineering, Helwan University, Cairo, Egypt.
Abstract
Hollow Turbine shaft is a starting part for torque, revolutions or energy into another component of the transmission. It for a transverse mounted four speed automotive automatic transmission whenever were introduced to study its stresses. It has two splined parts at its ends and in between a bearing support mounting on the without splined part. The engine power has been transmitted by a drive link assembly to the input gear sets shaft. The study of stressed states of splined and without splined parts of hollow turbine shaft resulting in fatigue failure under two different working operating conditions of torque has been done. Also, hollow turbine shaft is loaded by two vertical loads which are coming from torque converter, friction viscous clutch and drive link and sprocket assemblies. From that, there are many critical combinations of forces (contact, normal, twist and shearing forces) applied on hollow input turbine shaft. The critical forces can be possibility exist many types of cracks for cross section of shaft they are: inclined (torsion stress), longitudinal and transverse (shear stress), and vertical (bending stress). The torsion, shear, bending, and compound stresses are studied theoretically in this article.
Keywords
Transverse Automotive Automatic Transmission, Turbine Shaft Stresses, Torque Converter Torque Ratio, Torque Converter Weight, Shaft Crack
Reference
[1]
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[2]
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[3]
Donald Alexander Baker, “A finite Element Study of Stresses in Stepped Splined Shafts, and Partially Splined Shafts under Bending, Torsion, and Combined Loadings”, Master of Science in Mechanical Engineering, Faculty of the Virginia Polytechnic Institute and State University, Blacksburg, Virginia, May 4, 1999.
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[9]
N. A. Abdel-halim, “Study of Stress Sources and Critical Stress Combinations for the Input Shaft of a Longitudinally Mounted Four Speed Automotive Automatic Transmission Model”, Modern Mechanical Engineering, doi: 10.4236/mme.2013.31006, vol. 3, pp. 44-49, 2013. http://www.scirp.org/journal/mme
[10]
THK Co., LTD, “Compact Ball Spline”, Head office 3-11-6 Nishigotanda, shinagawa-ku, Tokyo, 141-8503 Japan, 2016. http://www.thk.com
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