Browse > Article
http://dx.doi.org/10.7735/ksmte.2012.21.4.525

Structural Analysis of Engine Mounting Bracket  

Han, Moon-Sik (계명대학교 기계자동차공학과)
Cho, Jae-Ung (공주대학교 기계자동차공학부)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.21, no.4, 2012 , pp. 525-531 More about this Journal
Abstract
This study aims at the structural analysis of vibration and fatigue according to the configuration of engine mount. Maximum equivalent stress or deformation is shown at bracket or case respectively. As harmonic vibration analysis, the maximum displacement amplitude is happened at 4,000Hz. Among the cases of nonuniform fatigue loads, 'SAE bracket history' with the severest change of load becomes most unstable but 'Sample history' or 'Saw tooth' becomes most stable. In case of 'Sample history' or 'Saw tooth' with the average stress of 4,200MPa or 0MPa and the amplitude stress of -3,000MPa or 7MPa, the possibility of maximum damage becomes 70%. This stress state can be shown with 7 times more than the damage possibility of 'SAE bracket history' or 'SAE transmission'. The structural result of this study can be effectively utilized with the design on engine mount by investigating prevention and durability against its damage.
Keywords
Engine mounting bracket; Natural frequency; Harmonic vibration analysis; Nonuniform fatigue loads; Fatigue life; Fatigue damage; Rainflow matrix; Durability;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
1 Yi, H. K., Han, K. J., Hwang, T. W., and Sohn, D. Y., 2000, "Reliability Evaluation of Engine Mount Bracket Based on the Interference Theory," Proceeding of 2000 KSAE Autumn Conference, pp. 853-857.
2 Kim, J. W., Chung, K. W., Park, J. S., and Chung, J. D., 2010, "A Life Cycle Cost Model and Procedure for the Acquisition of Rolling Stocks," Journal of The Korean Society for Railway, Vol. 13, No. 3, pp. 257-263.   과학기술학회마을
3 Cho, J. U., and Han, M.S., 2010, "Analysis of Fatigue Damage at Wheel under Variable Load," Journal of KSMTE, Vol. 19, No. 6, pp. 753-759.   과학기술학회마을
4 Suh, C. M., Oh, S. Y., Park, D. K., and Jang, J. H., 2009, "Fatigue Characteristics of Engine Rubber Mount for Automotive," Journal of Ocean Engineering and Technology, Vol. 23, No. 5, pp. 45-53.   과학기술학회마을
5 Swanson, J., 2009, ANSYS 12.0, ANSYS Inc.
6 Kuk, J. Y., and Lim, J. H., 2008, "A Study on Vibration Characteristics of Engine Mount System of a Medium Duty Truck at the Key On/Off," Transactions of KSAE, Vol. 16, No. 4, pp. 97-102.   과학기술학회마을
7 Jung, J. H., Kim, J. W., Kim, Y. S., and Kim, J. H., 2011, "Engine Mount Bracket by Aluminum High Pressure Die Casting Process," Proceeding of 2011 KSAE Autumn Conference, pp. 956-961.
8 Sa, J. S., and Kim, K. S., 1991, "A Study on the Engine Mounting System of the 4WD Vehicle by Experimental Modal Analysis," The Korean Society for Noise and Vibration Engineering, Vol. 1, No. 1, pp. 39-43.   과학기술학회마을