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Effect of cavitation bubble collapse on hydraulic oil temperature

Journal of Central South University 2016年第7期23卷 1657-1668页

作者：沈伟张健孙毅张迪嘉姜继海 Department of Mechatronics Engineering University of Shanghai for Science and TechnologyShanghai 200093China Department of Mechatronics Engineering Harbin University of CommerceHarbin 150000China Beijing Institute of Precision Mechatronics and Control Equipment Beijing 100076China School of Mechatronics Engineering Harbin Institute of TechnologyHarbin 150000China

Cavitation bubble collapse has a great influence on the temperature of hydraulic oil. Herein, cone-type throttle valve experiments are carried out to study the thermodynamic processes of cavitation. First, the processes of growth and collapse are analysed, and the relationships between the hydraulic oil temperature and bubble growth and collapse are deduced. The effect of temperature is then considered on the hydraulic oil viscosity and saturated vapour pressure. Additionally, an improved form of the Rayleigh–Plesset equation is developed. The effect of cavitation on the hydraulic oil temperature is experimentally studied and the effects of cavitation bubble collapse in the hydraulic system are summarised. Using the cone-type throttle valve as an example, a method to suppress cavitation is proposed.

关键词： cavitation bubble collapse hydraulic oil temperature Rayleigh-Plesset equation cone-type throttle valve

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仿真实验:良好散热型液压油箱及工况监控研究

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中国科技信息 2012年第7期 144-145页

作者：龙藤刘晓南北京建筑工程学院

High level oil temperature is one of the most important factories reasons for hydraulic system to *** order to improve ability of heat-radiation and control oil temperature within proper scope,new type oil tanks are required which are made up by plate-fin *** analysis indicates that the new type oil tanks have a good natural ability of *** further enhance ability of heat-radiation,it should be fixed a fan in the bottom of the oil tanks,which can strengthen the ability of *** monitoring equipment,monitoring system can monitor the parameters of oil tanks in real time,and control the oil temperature within proper *** experiments tell us some significant data.

关键词： hydraulic system hydraulic source hydraulic oil temperature monitoring system

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