Skip to main content
main-content
Top

Hint

Swipe to navigate through the chapters of this book

2020 | OriginalPaper | Chapter

Study on the Non-linear Parametric Model of Hydraulic Dampers Before Relieving for Railway Vehicles

Authors: Hongxing Gao, Maoru Chi, Xuesong Jin, Shulin Liang, Changxin Chi, Xiaozhi Zhou

Published in: Advances in Dynamics of Vehicles on Roads and Tracks

Publisher: Springer International Publishing

share
SHARE

Abstract

The objective of this work is to establish an accurate non-linear parametric model which relates the physical parameters with the damping characteristics of the hydraulic damper before relieving. A new non-linear parametric model including the sub-models of the orifice, hydraulic fluid, pressure chambers, reservoir chamber, etc. is established based on the theory of the fluid mechanics. Subsequently, a new force element of the hydraulic damper based on the new non-linear model is developed with Fortran language in the secondary development environment of the multi-body dynamics software SIMPACK. Used the force element, the force-displacement and force-velocity characteristics of the modified yaw damper with the base diameter of 0.4 and 0.6 mm are calculated under different amplitudes and frequencies of the sinusoidal excitation. Comparing with the experimental results obtained under the same condition, it shows that the new model can accurately model the nonlinear static and dynamic characteristics. Furthermore, the leakages for the high frequency, the air release and cavitation for the modelling of the fluid shortage, the non-constant flow coefficient of the orifice and the dynamic states of the fluid should be included in the modelling of the hydraulic damper before relieving. The non-linear parametric model proposed in this paper is more applicable to the railway vehicle system dynamics simulation and individual system description of the hydraulic damper.
Literature
1.
go back to reference Alonso, A., Giménez, J.G., Gomez, E.: Yaw damper modelling and its influence on railway dynamic stability. Veh. Syst. Dyn. 49(9), 1367–1387 (2011) CrossRef Alonso, A., Giménez, J.G., Gomez, E.: Yaw damper modelling and its influence on railway dynamic stability. Veh. Syst. Dyn. 49(9), 1367–1387 (2011) CrossRef
2.
go back to reference Conde, Mellado A., Gomez, E., Vinolas, J.: Advances on railway yaw damper characterisation exposed to small displacements. Int. J. Heavy Veh. Syst. 13(4), 263–280 (2006) CrossRef Conde, Mellado A., Gomez, E., Vinolas, J.: Advances on railway yaw damper characterisation exposed to small displacements. Int. J. Heavy Veh. Syst. 13(4), 263–280 (2006) CrossRef
3.
go back to reference Surace, C., Worden, K., Tomlinson, G.R.: On the non-linear characteristics of automotive shock absorbers. Proc. Inst. Mech. Eng. Part D: J. Automot. Eng. 206(1), 3–16 (1992) CrossRef Surace, C., Worden, K., Tomlinson, G.R.: On the non-linear characteristics of automotive shock absorbers. Proc. Inst. Mech. Eng. Part D: J. Automot. Eng. 206(1), 3–16 (1992) CrossRef
4.
go back to reference Lang, H.H.: A study of the characteristics of automotive hydraulic dampers at high stroking frequencies. Ph.D. thesis, University of Michigan (1977) Lang, H.H.: A study of the characteristics of automotive hydraulic dampers at high stroking frequencies. Ph.D. thesis, University of Michigan (1977)
5.
go back to reference Mollica, R.: Nonlinear dynamic model and simulation of a high pressure monotube shock absorber using the bond graph method. Master thesis, University of Michigan (1997) Mollica, R.: Nonlinear dynamic model and simulation of a high pressure monotube shock absorber using the bond graph method. Master thesis, University of Michigan (1997)
6.
go back to reference Zhou, X.Z.: Research on mechanical model and dynamic behaviour of yaw damper for railway vehicles. Master thesis, Southwest Jiaotong University (2018) Zhou, X.Z.: Research on mechanical model and dynamic behaviour of yaw damper for railway vehicles. Master thesis, Southwest Jiaotong University (2018)
7.
go back to reference John, C.: The Shock Absorber Handbook, 2nd edn. Wiley, Hoboken (2007) John, C.: The Shock Absorber Handbook, 2nd edn. Wiley, Hoboken (2007)
8.
go back to reference Miller, D.S.: Internal Flow Systems, 2nd edn. BHR Group Limited, UK (1996) Miller, D.S.: Internal Flow Systems, 2nd edn. BHR Group Limited, UK (1996)
9.
go back to reference Lichtarowicz, A., Duggins, R.K., Markland, E.: Discharge coefficients for incompressible non-cavitating flow through long orifices. J. Mech. Eng. Sci. 7(2), 210–219 (1965) CrossRef Lichtarowicz, A., Duggins, R.K., Markland, E.: Discharge coefficients for incompressible non-cavitating flow through long orifices. J. Mech. Eng. Sci. 7(2), 210–219 (1965) CrossRef
10.
go back to reference Ramamurthi, K., Nandakumar, K.: Characteristics of flow through small sharp-edged cylindrical orifices. Flow Meas. Instrum. 10(3), 133–143 (1999) CrossRef Ramamurthi, K., Nandakumar, K.: Characteristics of flow through small sharp-edged cylindrical orifices. Flow Meas. Instrum. 10(3), 133–143 (1999) CrossRef
11.
go back to reference Gholizadeh, H., Burton, R., Schoenau, G.: Fluid bulk modulus: comparison of low pressure models. Int. J. Fluid Power 13(1), 7–16 (2012) CrossRef Gholizadeh, H., Burton, R., Schoenau, G.: Fluid bulk modulus: comparison of low pressure models. Int. J. Fluid Power 13(1), 7–16 (2012) CrossRef
Metadata
Title
Study on the Non-linear Parametric Model of Hydraulic Dampers Before Relieving for Railway Vehicles
Authors
Hongxing Gao
Maoru Chi
Xuesong Jin
Shulin Liang
Changxin Chi
Xiaozhi Zhou
Copyright Year
2020
DOI
https://doi.org/10.1007/978-3-030-38077-9_72

Premium Partner