Browse > Article
http://dx.doi.org/10.5050/KSNVE.2010.20.12.1147

Experimental Study for the Reduction of Wet-brake Squeal Noise in a Forklift  

Kim, Tae-Jong (부산대학교 기계공학부/기계기술연구원)
Koo, Ja-Ham (부산대학교 대학원 기계설계공학과)
Jeong, Weui-Bong (부산대학교 기계공학부)
Kim, Young-Hyun (현대중공업(주) 선박해양연구소)
Joo, Won-Ho (현대중공업(주) 선박해양연구소)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.20, no.12, 2010 , pp. 1147-1152 More about this Journal
Abstract
The wet brakes used in an industrial forklift often produce noise on braking. Elimination or reduction of this squeal noise is an important task for the improvement of comforts. In this paper, a test rig was developed which was possible for testing of brake noise and an experimental measurement on squeal noise was performed. The causes of the brake noise are identified by experimenting how the factors such as automatic transmission fluid, the groove of friction-plate pad and the material of friction-plate pad affect the squeal noise. In order to identify the squeal characteristics, the signal analyses for noise are performed by using frequency spectrums. Experimental results showed that the viscosity of automatic transmission fluid and the groove pattern of friction-plate pad largely affect the reduction of the wet brake squeal noise in an industrial forklift.
Keywords
Forklift; Squeal Noise; Wet Disc Brake; Test Rig; Automatic Transmission Fluid(ATF); Parameter Study;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Ra, D. J., Kim, J. H., Choi, S. B. and Kim, N. I., 2004, “Study on Riding Quality Improvement of a Forklift Truck through Structural Vibration Analysis,” Proceedings of the KSNVE Annual Autumn Conference, pp. 542-545.
2 Kim, W. H., Hong, I. H. and Chung, J. T., 2008, “A Study on Noise Reduction for the Driving System of a Forklift,” Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 18, No. 1, pp. 80-86.   DOI
3 Michael, R. A., 1992, “Key Elements of Wet Brake and Clutch Design,” SAE 921660.
4 Michael A. A., 1986, “Vibration and Noise in Oil-immersed Friction Couples-A Basic Discussion,” SAE 861202.
5 Friesen, T. V., 1983, “Chatter in Wet Brakes,” SAE 831318.
6 Scott, W., Suntiwattana, P., 1995, “Effect of Oil Additives on the Performance of a Wet Friction Clutch Material,” Wear, Vol. 181, pp. 850-855.
7 Severin, D., Dorsch, S., 2001, “Friction Mechanism in Industrial Brakes,” Wear, Vol. 249, pp. 771-779.   DOI
8 Stempien, Vincent M., 1981, “Wet Disk Brakes for Off-highway Vehicles,” SAE 811288.
9 Staph, H. E., 1985, “Experimental Study of Wet-Brake Friction,” SAE 851575.
10 Jang, H. K., Lee, S. H. and Kim, T. I., 1996, “Reduction of Wet Brake Squeal in Forklift,” Proceedings of the KSNVE Annual Autumn Conference, pp. 98-103.
11 Kim, T. J., Jeong, W. B., Kim, M. S., Kim, Y. H. and Joo, W. H., 2009, “Experimental Study of Wet-brake Squeal Noise in a Forklift,” Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 19, No. 5, pp. 996-1002.   DOI
12 Lee, D. I., Choi, H. W., Park, K. B. and Lee, S. K., 1996, “Dynamic Response Optimization for Vibration Reduction of the Fork-lift Truck,” Proceedings of the KSNVE Annual Spring Conference, pp. 155-160.
13 Yoo, H. H., Park, K. B., Shin, S. H. and Kim, T. I., 1997, “Development of a Procedure to Calculate Principal Internal Force for the Strength Design of a Forklift Truck Brake System,” The Korean Society of Automotive Engineers, Vol. 5, No. 5, pp. 27-36.
14 Kim, W. H., Joo, W. H. and Kim, S. K., 2004, “Vibration Characteristics and Countermeasures of a Transaxle Type Forklift Truck,” Proceedings of the KSNVE Annual Spring Conference, pp. 912-918.