Experimental Research on Heat Conduction and Temperature Control Method in the Chamber of Large-Scale Geotechnical Centrifuge

Abstract

The high-speed rotation of the rotor in the large-scale geotechnical centrifuge generates significant heat due to air friction in the chamber, leading to an increase in temperature and affecting the normal operation of the machine and sensors. This paper conducted experiments and analysis on the heat conduction mechanism in the chamber of the super large-scale geotechnical centrifuge, as well as the theoretical analysis of heat dissipation methods for different heat sources. A scaled-down prototype model at a 1:15 ratio was designed to simulate the heat generation and dissipation caused by the friction of the high-speed rotor, and the reliability of the theoretical model was verified through testing. Based on this theoretical model, a temperature control method for the 1500g large-scale geotechnical centrifuge was proposed.