- ISSN 0258-2724
- CN 51-1277/U
- EI Compendex
- Scopus
- Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
- Chinese S&T Journal Citation Reports
- Chinese Science Citation Database
| Citation: | GUO Wenjie, ZHAI Yuliu, LUO Wenjun, ZHANG Pengfei, HONG Xian. Elastic Wave Control of Rail Structure Based on Inertial Amplification Mechanism[J].Journal of Southwest Jiaotong University.doi:10.3969/j.issn.0258-2724.20240262
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The problem of vibration and noise caused by train operation is increasingly prominent, and it is difficult for traditional tuned mass damper (TMD) to achieve lightweight and broadband vibration reduction for rail. In view of this, inertial amplification mechanism (IAM) was introduced to achieve greater effective working quality of TMD by using inerter, so as to enhance the suppression of rail structure vibration. A new method for solving the complex band characteristics was proposed by using the energy method and the virtual spring method, based on which the complex band analysis model of the rail structure configured with IAM-TMD was established, and the accuracy of the model was verified with the solving results of the finite element method (FEM). On this basis, the influence mechanism of IAM on the vibration reduction effect of traditional rail TMD was investigated by taking the complex band characteristics as the evaluation index, and the modulation effects of IAM mass ratio, lever angle, and damping coefficient on the propagation of vibration wave in the rail structure were analyzed. The results show that the imaginary part of the complex band can describe the attenuation process of wave propagation inside the bandgap well. After the application of the IAM with
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