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http://dx.doi.org/10.5293/kfma.2015.18.2.048

Motion Characteristics of Hydraulic Actuator with Various Cushion Shapes  

Kim, Jin-Hyoung (Graduate School of Mechanical Engineering, Sungkyunkwan University)
Kang, Hyun-Su (Graduate School of Mechanical Engineering, Sungkyunkwan University)
Han, Su-Min (HKC Co., Ltd.)
Kim, Youn-Jea (School of Mechanical Engineering, Sungkyunkwan University)
Publication Information
The KSFM Journal of Fluid Machinery / v.18, no.2, 2015 , pp. 48-53 More about this Journal
Abstract
Hydraulic actuator is a primary component of the hydraulic valve systems. This paper describes a motion characteristic of hydraulic actuator with various configurations of cushion. It plays an important role in protecting the actuator from the shock when the piston reaches the end position. Numerical analyses were conducted by using commercial code, ANSYS with k-${\varepsilon}$ turbulent model. The results for pressure and velocity distributions in the hydraulic actuator with different cushion shapes were graphically depicted.
Keywords
Hydraulic actuator; Cushion; Motion characteristics; CFD;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Kim, D. S., Park, J. B. and Lee, W. H., 2002, "The Characteristic Analysis of Cushioning Pneumatic Cylinder", KSME., Spring Annual Conference, pp. 1950-1956 (in Korean).
2 Lee, Y. B. and Yoon, Y. H., 2013, "Modeling & Simulation of a Hydraulic Servo Actuator Cushion for Power Plants", Journal of the KSTLE, Vol. 29, No. 1, pp. 7-12 (in Korean).
3 Lee, Y. B., Ko, J. M. and Park, J. H., 2008, "Study of the Cushion Characteristics in Accordance with Shapes Cushion Ring of Hydraulic Cylinder", KSFC., Vol. 5, No. 2, pp. 14-19 (in Korean).
4 Choi, J. S., Kim, J. H. and Ju, B. H., 2010, "Study of the Cushion Characteristics in Accordance with Hydraulic Excavator's Behavior", KFPS., Spring Annual Conference, pp. 44-47 (in Korean).
5 Lee, S. K., Kim, D. S. and Kim, H. U., 1999, "An Experimental Study on the Cushion Characteristics of Hydraulic Cylinder", KIMS., Vol. 11, No. 2, pp. 53-61 (in Korean).
6 Jambhrunkar, G. D., Gulhane, N. P. and Biradar M. G., 2012, "CFD Analysis of Hydraulic Cylinder to Evaluate Performance of Cushioning in Cylinder", IJMPE., Vol. 1, No. 1, pp. 93-98.
7 Abdalla, M. O., Nagarajan, T. and Hashim, F. M., 2012, "Improvement of Actuation Speed of Hydraulic Cylinders : Using Novel Flow Control Valve System,", IRAM., CCIS. 300, pp. 331-339.
8 최봉수, 2009, "FLUENT Dynamic Mesh Method를 이용한 유압식 쇼크 업소버(shock absorber) 해석", Journal of the Fluid Machinery, Vol. 12, No. 3, pp. 75-78 (in Korean).   DOI
9 ANSYS FLUENT Theory Guide, ANSYS Inc., 2011.