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http://dx.doi.org/10.14775/ksmpe.2015.14.3.131

Fatigue Life Prediction of the Carrier of Slewing Reducer for Tower Crane  

Cho, Seung-Je (Department of System Reliability, Korea Institute of Machinery & Materials)
Park, Young-Jun (Department of System Reliability, Korea Institute of Machinery & Materials)
Han, Jeong-Woo (Department of System Reliability, Korea Institute of Machinery & Materials)
Lee, Geun-Ho (Department of System Reliability, Korea Institute of Machinery & Materials)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.14, no.3, 2015 , pp. 131-140 More about this Journal
Abstract
The purpose of this study is to predict the fatigue life of a planet carrier of a slewing reducer for a tower crane. To predict the fatigue life of the carrier, the inertia endurance test was carried out, and then the input torque profile for the reducer was obtained. The load profile acting on the planet pins that assembled the carrier was calculated from the measured input torque profile using commercial gearbox analysis software. The stress profiles of the carrier weak points were analyzed from the calculated load profile and boundary conditions using commercial FE software, and the stress cycles were determined using the rainflow counting method. Finally, the fatigue life of the carrier was predicted using the equivalent stress range by considering the effect of mean stress, and an S-N curve was drawn up using the GL guideline and the cumulative damage law.
Keywords
Slewing Reducer; Planet Carrier; Stress Range; Cumulative Damage Law; Fatigue Life Prediction;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 "ANSYS V14.5 Program manual", TAESUNG S&E, Inc.
2 "KISSsoft 03-2014 Program manual", KISSsoft AG.
3 Cho, S. J., "Structural analysis of a planetary gear carrier in the slewing reducer for tower crane", J. of KSMPE, Vol. 13, No. 5, pp. 1-7, 2014.
4 "GL Guideline 2010", Germanischer Lloyd, 2010.
5 "DIN 7190", Deutsche Industric Normen, pp. 9, 1988.
6 Han, S. G., "Strength and Durability Analysis of the Double Planetary Gears", J. of KSMPE, Vol. 13, No. 5, pp. 28-34, 2014.