Composites Science and Engineering ›› 2020, Vol. 0 ›› Issue (5): 63-68.

• APPLICATION RESEARCH • Previous Articles     Next Articles

STUDY ON VIBRATION PROPERTIES OF CARBON FIBER REINFORCEDCOMPOSITE TUBES WITH DIFFERENT INNER DIAMETERS

SUN Ze-yu1,2,3, YU Xu-duo4, TAO Lei1,2, GAO Hong-ping4   

  1. 1.College of Materials Science and Engineering, Donghua University, Shanghai 201620, China;
    2.Center for Civil Aviation Composites, Donghua University, Shanghai 201620, China;
    3.Key Laboratory of Shanghai City for Lightweight Composites, Donghua University, Shanghai 201620, China;
    4.Shanghai Fishman New Materials Technology Company, Shanghai 201620, China
  • Received:2019-10-11 Online:2020-05-28 Published:2020-05-28

Abstract: In this study, the vibration characteristics of carbon fiber reinforced composite tubes with various inner diameters were studied using finite element analysis and experimental modal test. The results indicated that natural frequency of composite tubes increased with the increases in the inner diameter. The high accordance of the simulated and measured results indicated the reliability of the simulation. Under the free state, the first vibration of composite tubes with different inner diameters occurred bending vibration. During the vibration, position 1/4 and 3/4 of the tube did not deform but the middle and both ends deformed greatly. With the increase of the inner diameter of the composite tubes, the vibration attenuation coefficient decreased gradually. The change of damping property caused by the inner diameter of the shaft tube has a great influence on the vibration attenuation of the composite tube under free state, but the damping change has little influence on the natural frequency of the shaft tubein the free state.

Key words: CFRP, drive shaft, natural frequency, damping, vibration performance

CLC Number: