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中南大学学报(英文版)

Journal of Central South University

Vol. 23    No. 7    July 2016

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Effect of cavitation bubble collapse on hydraulic oil temperature
SHEN Wei(沈伟)1, ZHANG Jian(张健)2, SUN Yi(孙毅)3, ZHANG Di-jia(张迪嘉)4, JIANG Ji-hai(姜继海)4

1. Department of Mechatronics Engineering, University of Shanghai for Science and Technology,
Shanghai 200093, China;
2. Department of Mechatronics Engineering, Harbin University of Commerce, Harbin 150000, China;
3. Beijing Institute of Precision Mechatronics and Control Equipment, Beijing 100076, China;
4. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150000, China

Abstract: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.

 

Key words: cavitation; bubble collapse; hydraulic oil temperature; Rayleigh–Plesset equation; cone-type throttle valve

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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