Investigating the Influence of Geometry on Performance Characteristics of Mounted Cushions in Hydraulic Cylinders

Document Type : Research Article

Authors

1 Sari agricultural sciences and natural resources

2 biosystem mechanics, agricultural engineering, Sari university of agricultural sciences and natural resources,

Abstract

In this research, design, fabrication and evaluation of 5 different hydraulic cushions have been considered in order to optimize the stopping mechanism of pistons at the end of the course. The comparison of 5 cushion spears including Cylindrical, Conical, Sagittal, Double conical and Parabolic cushion have been studied with reviewing the motion behavior of piston and measuring displacement, speed, acceleration, flow rate and hydraulic pressure in an one way hydraulic cylinder. Results showed that the sagittal cushion with maximum pressure increasing of 1.98% for 200 kg load and 0.35% for 350 kg load had the lowest percentage of hydraulic pressure rise and cylindrical cushion with maximum pressure increasing of 11.98% for 200 kg load and 3.92% for 350 kg load had highest percentage of hydraulic pressure rise. Also operational time of sagittal cushion in experiments with 350 kg load was respectively 33.8 and 63.9 percent lower than that of conical and cylindrical cushion. Also double conical cushion has the nearest performance to the sagittal cushion. As a concluding result with tacking into account the low response time, steady speed reduction and steady rate of hydraulic oil discharge, sagittal cushion is recommended to be used in industries.

Keywords

Main Subjects

References

[1]  D. Kalantari (2012), Identification & Design of Hydraulic Systems, pp.45-525, Tehran:Naghous, (in Persian);
[2]  Ylinen A., Marjamäki H., Mäkinen J., 2014. A hydraulic cylinder model for multibody simulations, Computers and Structures, vol. 138, pp. 62–72;
[3]  Li J., Kawashima K., Fujita T., Kagawa T., 2013. Control design of a pneumatic cylinder with distributed model of pipelines, Precision Engineering, vol. 37, pp. 880– 887;
[4] Dix J. P. Inventor, 2006.  CNH  America  LLC,  New Holland, PA Assignee. Hydraulic cylinder cushioning. US patent 7,104,054 B1. Sep. 12;
[5] Spring K. D. Inventor; 1983. Allis-Chalmers Corporation Assignee, Cushion stop for hydraulic cylinder, US Patent 4,397,218, Aug. 9;
[6]  Langland Z. H. Invertor. 1975. Allis-Chalmers Corporation Assignee, Cushioned hydraulic actuators, US patent 3,877,344, Apr. 15;
[7]  Schwartz C., De Negri V. J., Climaco J. V., 2005. Modeling and Analysis of an Auto-Adjustable Stroke End Cushioning Device for Hydraulic Cylinders, J.  of the Braz. Soc. of Mech. Sci. & Eng., vol. 27, No. 4, pp. 415-425;
[8]  Cook W. C., Sampson B. M. Invertors. 1962. The Manufacturing Corporation, Solon, Ohio Assignee, Hydraulic cylinder cushion, US patent 3,025,836, Mar. 20;
[9] Rich L. B., Lansky J. Z. Inventors. 1977. Parker-Hannifin Corporation Assignee, Cushioning means for hydraulic cylinders, US patent 4,064,788, Dec. 27.
[10]  Wei Z. Y., Zhao H. F., Liu W., 2010 Cushion process of the hydraulic cylinder of hydraulic operating mechanism for high voltage circuit breaker, Transactions of the Chinese Society for Agricultural Machinery, vol. 44, pp. 216–221;
[11]  Lai Q., Liang L., Li J., Wu S., Liu J., 2016. Modeling and Analysis on Cushion Characteristics of Fast and High-Flow-Rate Hydraulic Cylinder, Mathematical Problems in Engineering, Article ID 2639480, 17 pages;
[12]   Meirmanova A., Nekrasova I., 2013. Mathematical Models of a Hydraulic Shock, Journal of Mathematical Analysis and Applications, vol. 408, pp. 76-90;
[13]  Teng C. K., Hsiao C. Y., Wang C. S., 2008. Effects of an absorber on impact characteristics in machine cushion design with area ratio modified guiding structure, Simulation modeling practice and theory, vol. 16, pp. 1200-1214;
[14]  Hauk N., 2011. The Power Balance during Cushioning For Hydraulic Cylinders, FASCICLE XIV MECHANICHAL ENGINEERING, ISSN 1224-5615;
[15] Chen X., Chen F., Zhou J., Li L., Zhang Y., 2015. Cushioning structure optimization of excavator arm cylinder, Automation in Construction, vol. 53, pp. 120-130;
[16] Prahallad Ch., Raveender A., 2017. Modeling and Optimization of Cushioning System in Hydraulic Cylinder to achieve Performance Characteristics, Imperial Journal of Interdisciplinary Research (IJIR), vol. 3, pp. 2122-2128;
[17] Kline k., 2016. Hydraulic system modeling and optimization to achieve performance characteristics, PhD Thesis, University of Iowa State, Iowa State;
[18]  Quadrant Plastic Engineering Products, EPP Ertalon 6SAPA6 product data sheet, 2011;
[19]  Quadrant Plastic Engineering Products, EPP Ertalon 6SAPA6 product and application guide, 2007;
[20]  Parker Hannifin Corporation Industrial Cylinder Division, Heavy Duty Hydraulic Cylinder Product sheet; 2012;
[21]   Ibrahim O., ElGendy H., ElShafee A. M., 2011. Speed Detection Camera System using Image Processing Techniques on Video Streams, International Journal of Computer and Electrical Engineering, vol.3, pp. 771-778;
[22]  G. Rabie, (2009). Fluid Power Engineering, Cairo: Mc Graw Hill, 443 pages;
[23]  J. P. Tullis, (1989). Hydraulic of piplelines, pp. 45- 48, New Jersey: Wiley-Interscience;
[24]   Liu W., Xu B., Yang H., Zhao H., Wu J., 2011. Hydraulic operating mechanisms for high voltage circuit breakers: progress evolution and future trends, Science China Technological Sciences 54 116–125;
Amirkabir Journal of Mechanical Engineering
Volume 51, Issue 6
January and February 2020
Pages 1187-1200

Files

Share

How to cite

Statistics