The Analysis of the First Order Bending Stiffness of Vehicle Body in Different Loading Conditions

Abstract:

The first order vertical bending mode of vehicle and its stiffness are very important to the dynamic characteristics. A high-speed vehicle body was selected to study on, the differences of the sections stiffness features were considered, with the unknown sections geometry sizes, mass and mass distribution. Under the different load, the first order bending stiffness of the seven sections and the equal bending stiffness of the vehicle body was calculated only using the modal test data. The result was validated by the tested mode frequency. The research showed that the sections upon air-spring have lower stiffness, and the rice loading on the vehicle body would reduce the vehicle body bending stiffness. However, the middle section stiffness would increase with fixed number of passengers on the vehicle.

• Periodical: Advanced Materials Research (Volumes 765-767)
• Pages: 79-83
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.765-767.79
• Online since: September 2013
• Authors: Fei Li Qiu, Li Min Zhang, Wei Hua Zhang, Xian Liang Sun
• Keywords: Section Bending Stiffness, Vehicle Body Bending Stiffness, Vehicle Body Load, Vertical Bending

References

[1] Baoshuan Tian, Xinwen Wu, in: The analysis and thinking about the standard of the truck train stiffness, in press. Rolling stock (2010).

[2] Xiao-bo Liu, in: The 0ptimum designs of cross-section structure on locomotive car body, edited by Ekct Locomotives& Mass Transit Vehicles(2008).

[3] Railway vehicles－Specification for evaluation the strength design and accreditation test. TB/T 1335-(1996).

[4] Rolling stock General requirements of vehicle body for passenger car. JIS E7103-(2006).

[5] Railway vehicles－Specification for evaluation the dynamic performance and accreditation test. GB/T 5599-(1985).

[6] Zhongliang Liu, Changqi Yang, in: Processing on parameters identification with multiple-excitation, edited by Journal of vibration and shock (2011).

[7] Weihua Zhang. Dynamic Simulation of Railway Vehicles, edited by China railway publish house (2006), in press.

[8] Debao Li, Qiuhai Lu. Experiment Modal analysis and application, edited by Science Press (2001).

[9] Feili Qiu, Limin Zhang. Line Modal Test of High-speed Train Body Using Test. Lab. Noise and Vibration Control. 2012, 32(2), pp, 67-70.

[10] Yan Wu. The modal test and analysis of the coach vehicle body. Journal of the China railway society. Vol. 16 No. 4. 1996, pp, 7-14.

[11] Juan Wu, Jiasheng Zhang. Simulation and Modeling of the Tester Applied to Test the Impedance of Hydraulic Booster Location System. Mach Ine Tool & Hydraulics. Vol. 36 No. 7, 2008, pp, 134-136.

[12] Guoqin Zhang, Jianming Ju. The method calculation research of the train body dynamic stiffness. Sci-Tech Innovation &Productivity. No. 6 Jun, 2010, totals No. 197, pp, 069-072.

[13] Jianyong Yu. The Influence of the Hanging Device on Complete Car's Model. Noise and Vibration Control. No. 5 Oct, 2012, pp, 97-98.