Vibration dissipation of an axially traveling string with boundary damping

• Main Authors: En Wei Chen, Jun Wang, Kai Zhong, Yimin Lu, Haozheng Wei
• Format: Article
• Language: English
• Published: JVE International 2017-12-01
• Series: Journal of Vibroengineering
• Subjects: axially traveling string; vibration dissipation; nature frequencies; viscous damper; traveling wave
• Online Access: https://www.jvejournals.com/article/18651

At present, the control of vibration problem of many engineering equipment can be simplified as a study on transverse vibration of axially traveling string system. In this paper, transverse vibration control and energy dissipation of axially traveling string system is investigated by using a boundary viscous damper. By analyzing the nature frequencies of the fixed length and the variable length of the string system, the resonance frequency of the external concentrated force is obtained. The amplitude and the energy reflection ratio of reflected wave to incident wave is investigated respectively by the force equilibrium principle and the energy equation at the boundary. According to amplitude and the energy reflection ratio, the range and the optimal value of damping coefficient are obtained. The effect of vibration dissipation with a viscous damper and an external concentrated force at the left boundary is investigated respectively by the numerical simulation.