Thermodynamic Research On Tension Front Jack

The thermodynamic characteristics of the front jack precision compensation and material selection are very important, the hydraulic oil viscosity is very sensitive to temperature change, the viscosity change will reduce the transfer efficiency and tr ansfer accuracy and other problems. An analyzing method for the internal thermodynamic characteristics of a single tension front jack based on the ANSYS finite element method is pres ented in this paper. The method of multi-field coupling is use d to analyze the thermodynamic characteristics of the front ja ck, the heat conduction model and the turbulence model are e stablished respectively for solid and fluid parts of the hydrauli c jack. According to the oil source temperature and environm ental temperature, the thermodynamic characteristics are simu lated and analyzed. The distribution law of temperature field and fluid field in the hydraulic cylinder are obtained when the jack works normally. Furthermore, the simulation results of the temperature distribution are compared with the experimental results, and the two trends are almost identical, which proves that the simulated method is correct to study the thermodyn amic characteristics of jacks. It provides a theoretical basis for precision compensation and structural improvement of the te nsion systems.