Abstract
In this study, a test setup was designed and manufactured in order to study vibration based self-loosening characteristics of preloaded bolted joints, especially used in the automobile industry. Details of the designed test setup and its operating principles are presented in addition to the test setups available in the literature. Using the test system developed and implementing a design of experiments procedure, first trials were conducted by using the test setup. Under predefined conditions, it is possible to identify when theloosening of bolts occurs and what tightening moment value is required to prevent self-loosening.
References
1 K.Cavdar: Self-loosening problems of preloaded bolted joints, Uludag University, The Faculty of Engineering Journal20 (2015) No. 1, pp. 103–11810.17482/uujfe.55509Search in Google Scholar
2 M.Buchmann: Advanced Monitoring System for Bolted Connections in Vehicle Constructions, MSc Thesis, Nelson Mandela University, South Africa (2010)Search in Google Scholar
3 G. H.Junker: New criteria for self-loosening of fasteners under vibration, Society of Automotive Engineers78 (1969), pp. 314–33510.4271/690055Search in Google Scholar
4 G. E.Ramey, R.C.Jenkins: Experimental Analysis of Thread Movement in Bolted Connections due to Vibrations, Report of the Research Project NAS8-39131 (1995)Search in Google Scholar
5 B.Eccles: Why Nuts and Bolts Can Self-Loosen, www.boltscience.com, visited June 2011.Search in Google Scholar
6 S.Hareyama, R.Takada, T.Shimodaira, K.Tamura, A.Hoshi, M.Nakashima: A proposal for the absolute estimation method on self-loosening of bolted joints during off-road vehicle operation, International Journal of Automotive Engineering3 (2012), pp. 47–5310.20485/jsaeijae.3.1_47Search in Google Scholar
7 S. M.Aware: Transverse vibration test rig for threaded fasteners, Journal of Emerging Technologies and Innovative Research2 (2015), No. 4, pp. 1023–1030Search in Google Scholar
8 Y.Yamamoto, S.Kasei: Investigations on the self-loosening of threaded fasteners under transverse vibration, Journal of Japan Society of Precision Engineering42 (1976) No. 6, pp. 507–51110.2493/jjspe1933.43.1069Search in Google Scholar
9 DIN 65151: 2002–08: Dynamic Testing of the Locking Characteristics of Fasteners under Transverse Loading Conditions (Vibration Test), beuth, Berlin, Germany (2002) 10.31030/9271748Search in Google Scholar
10 DIN 25201-4: 2010-03: Design Guide for Railway Vehicles and Their Components – Bolted joints – Part 4: Securing of Bolted Joints, Beuth, Berlin, Germany (2004) 10.31030/9552627.Search in Google Scholar
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