System design on heavy trailer of towing tank
CHEN Yu long, ZHANG Liang
（No. 710 Research & Development Institute, CSIC., Yichang 443003, China）

Abstract: In order to verify the design of heavy trailer of towing tank, a heavy trailer structure was presented. The basic components were introduced, and the working principle of towing test of the trailer system was expounded emphatically. Using the 3D design software CREO2.0, the model of the trailer was built based on the parameter design. Based on the solid model, the finite element analysis software HyperMesh and Abaqus were used to simulate the static stiffness and strength and the natural frequency of the trailer and the central bridge lifting rod. On the basis of this, the correlation analysis and calculation of the track system which affected the precision of the trailer was carried out. The research results show that the structure strength and natural frequency of the trailer can meet the design requirements.

Key words: towing tank; trailer; stiffness; strength; natural frequency