首页|Effect of nitrile butadiene rubber hardness on the sealing characteristics of hydraulic O-ring rod seals
Effect of nitrile butadiene rubber hardness on the sealing characteristics of hydraulic O-ring rod seals
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The nitrile butadiene rubber(NBR)hardness effect on the sealing characteristics of hydraulic O-ring rod seals is analyzed based on a mixed lubrication elastohydrodynamic model.Parameterized studies are conducted to reveal the mechanism of the influence of rubber hardness on the static and dynamic behavior of seals.The optimized selections of rubber hardness are then investigated under different conditions.Results show that the low hardness seal is prone to stress concentration due to the extrusion effect under high pressure conditions;it is also more prone to leaking.A high hardness seal can better prevent leakage by reducing film thickness but it will cause large frictional power loss and increase the probability of wear failure.The choice of low hardness is recommended to reduce friction with the premise that leakage requirements are met.
Nitrile butadiene rubber(NBR)hardnessSealing characteristicsOptimized selectionO-ring seal
Xiaoxuan LI、Bingqing WANG、Xudong PENG、Yuntang LI、Xiaolu LI、Yuan CHEN、Jie JIN
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College of Quality and Safety Engineering,China Jiliang University,Hangzhou 310018,China
College of Mechanical and Electrical Engineering,China Jiliang University,Hangzhou 310018,China
College of Mechanical Engineering,Zhejiang University of Technology,Hangzhou 310023,China
国家自然科学基金浙江省自然科学基金Fundamental Research Funds for the Provincial Universities of Zhejiang China
NETL
NSTL
万方数据
