Abstract
In order to evaluate and improve the adaptability of existing point machines under vibration of working environment, and provide vibrant parameter of environment for developing new point machines, and satisfy train requirement of high speed and heavy load, it has been tested and analyzed that vibration acceleration of several different point machines which transform different points, when different type trains pass through. Statistics, computation and analysis of testing data are completed respectively in time domain and frequency domain, also testing and analyzing results are given out in this paper. The results show that vibrant acceleration of point machine in vertical direction is maximal and the maximal value is in the range of 11 ∼ 38g, and the vibrant main frequency is in the range of 400 ∼ 800 Hz when trains pass through. Dynamic model of wheel-rail/point machine is set up, and the influence of installation of point machine on the vibrant acceleration is analyzed qualitatively, also main vibrant mode shapes of point machine are illustrated. The result, conclusion and suggestion obtained in this paper have some reference values for evaluating and advancing the adaptive ability of point machines under vibration of working environment, also for improving on design and installation of point machines.
| Original language | English |
|---|---|
| Pages (from-to) | 91-94 |
| Number of pages | 4 |
| Journal | Jixie Qiangdu/Journal of Mechanical Strength |
| Volume | 23 |
| Issue number | 1 |
| State | Published - Jan 2001 |
Keywords
- Point machine
- Testing research
- Vibrant acceleration