Research for Dynamic Characteristics of Electro-Hydraulic Proportional Relief Valve Based on AMESim

Abstract:

The electro-hydraulic proportional relief valve which will be used widely, has better stability and pollution resistance compared with the traditional nozzle flapper and the electro-hydraulic proportional reversing valve in the hoist constant deceleration braking system. The model of the G-π bridge electro-hydraulic proportional relief valve is built in this paper based on the simulation software-AMESim and the characteristic curves of the port pressure are plotted according to different step signals. The influence that the oil elastic modulus exerts to the dynamic characteristics of the valve is also studied in this paper, which provides data supports for the rational design of the valve structure and the hydraulic oil with certain elastic modulus. As the core component of the hoist constant deceleration, the electro-hydraulic proportional relief valve provides the theory basis for the next research of the constant deceleration.

• Periodical: Advanced Materials Research (Volumes 466-467)
• Pages: 518-522
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.466-467.518
• Online since: February 2012
• Authors: Xian Feng Wang, Xing Ming Xiao, Xiao Yan Zhang
• Keywords: AMEsim, Constant Deceleration, Dynamic Characteristic, Electro-Hydraulic Proportional Relief Valve

References

[1] Huai-gang Lei, Gui-lin Xie. Research of the Hoist Constant Deceleration Braking System[J]. The Coal of Jiangsu, 1995, 01: 21-23 (In Chinese).

[2] Jian-guo Han, Feng-guang Shen. The Application of the Constant Deceleration Braking System in the Import Hoist [J]. Mining Machinery, 2006, 05: 154-155 (In Chinese).

[3] Jian-Ma, Yong-zhong Li. The New Hydraulic Braking System[J]. Coal Mine Machinery, 1999, 8: 40-41(In Chinese).

[4] Yong-xiang LU. Historical Progress and Prospects of Fluid Power Transmission and Control [J]. Proceedings of the fifth International Conference on Fluid Power Transmission and Control. Beijing: International academic Publishers, 2001: 1-11.

[5] Duo-wen Shen, Study on Characteristics of the π Bridge Electro Hydraulic Proportional Relief Valve [D]. Xiangtan: Hunan University of Science and Technology, 2007(In Chinese).

[6] Yanping HU, Jianghua Wei. The Theory and Application of π Bridge Hydraulic Resistance Networks [J]. Transaction of Nonferrous Metal of China, 1999, 9.