Railway Vehicle Pneumatic Rubber Suspension Modelling and Analysis

Spiroiu, Marius Adrian

doi:10.37358/mp.18.1.4956

Cited by 15 publications

(5 citation statements)

References 5 publications

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“…In paper [6] a method of determining the equivalent rigidity of an air spring was proposed, which additionally takes into account the rigidity of the emergency spring:…”

Section: Analysis Of Literary References and Problem Statementmentioning

confidence: 99%

Research of the characteristics of an air spring under cyclic load

Kuzyshyn

Sobolevska

Kostritsa

et al. 2023

IOP Conf. Ser.: Mater. Sci. Eng.

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The dynamic stiffness, energy dissipation per cycle and the damping coefficient of the air spring of the second stage of spring suspension of high-speed rolling stock are investigated on the basis of a simplified mathematical model. The studies were carried out in the frequency range from 0 to 15 Hz. To determine the parameters of the air spring, its power characteristic was built, the area that characterizes the energy dissipation of the system per cycle. Based on the constructed characteristics, the damping coefficient and air spring stiffness during compression and expansion were determined. The influence of the frequency of the disturbing force and the diameter of the connecting element on the investigated parameters was studied. The obtained ratios of quantities would be made it possible to optimize the parameters of spring suspension of high-speed rolling stock from the point of view of ensuring admissible dynamic performance and traffic safety indicators.

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“…In paper [6] a method of determining the equivalent rigidity of an air spring was proposed, which additionally takes into account the rigidity of the emergency spring:…”

Section: Analysis Of Literary References and Problem Statementmentioning

confidence: 99%

Research of the characteristics of an air spring under cyclic load

Kuzyshyn

Sobolevska

Kostritsa

et al. 2023

IOP Conf. Ser.: Mater. Sci. Eng.

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“…In the literature [24,42], the heat exchange in air springs is evaluated isothermally and adiabatically to defne their physical behavior. Similarly, Spiroiu reported that when the frequencies are above 0.3 Hz, the process can be termed adiabatic, and frequencies ranging from 0.1 to 0.3 Hz are deemed polytropic, while frequencies below 0.1 Hz are isothermal processes [43]. Tis claim was however challenged by Pintado et al whose experimental research fndings revealed otherwise.…”

Section: Types Of Pneumatic Suspension Systemmentioning

confidence: 99%

“…However, it is applied in many vehicle suspension simulations. For instance, the efects of an auxiliary chamber and air pipeline parameters on a pneumatic suspension system performance are modeled using the vampire model [55], and the infuence of parameter estimation of the airbag, rubber spring, and auxiliary reservoir on the suspension stifness was also investigated [43]. Among the various models under this category, the Nishimura linear model and Simpack FE83 model are deemed to be more accurate in depicting the actual behavior of an air spring, and this is because both models factor in the viscous damping, including modeling the efect of air spring orifce and connecting pipelines.…”

Section: Types Of Pneumatic Suspension Systemmentioning

confidence: 99%

The Evolution of Vehicle Pneumatic Vibration Isolation: A Systematic Review

Atindana,

Xu,

Nyedeb

et al. 2023

Shock and Vibration

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Whole-body vibration (WBV) is a significant concern for vehicle users as it can negatively impact their health and comfort. As such, effective vibration isolation is critical in vehicle suspension design. The ability of a vehicle suspension to isolate vibrations depends primarily on the suspension design and the type of springs used. One type of spring that has proven advantageous for vibration isolation is the air spring. Air springs can vary frequencies and adjust their stiffness in response to different loading conditions, making them ideal for meeting both suspension load-carrying and occupants’ comfort requirements. Pneumatic (air) suspension has been in use in the automotive industry for several decades and has undergone significant advancements during this period. This paper presents a systematic review of pneumatic suspension since its inception. The review highlights different air spring modeling techniques, types of pneumatic suspension, and control methods. The study also discusses the functional flexibility of pneumatic suspension, its ability to offer a wide range of control options to drivers, and its broad application in almost all ranges of vehicles, including chassis, cabin, and seat suspension systems. In addition, this paper presents a summary of the pros and cons of pneumatic suspension and suggests future research directions. The advantages of pneumatic suspension include effective vibration isolation, improved ride comfort, and the ability to adjust suspension stiffness and ride height. On the other hand, the disadvantages include higher cost and complexity compared to other types of suspension. Overall, the findings of this review demonstrate that pneumatic suspension is a viable solution for vehicle suspension design, particularly in situations where vibration isolation and ride comfort are critical.

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“…Several scholars have studied the equivalent mechanical models with the combination of spring and damping terms. 3–7 Mazzola and Berg 8 concluded six equivalent mechanical models and compared them with the experiment. Zhu et al 9 improved the Berg model to get a four-parameter fractional derivative model which can reflect the hysteresis and frequency-dependency of air springs.…”

Section: Introductionmentioning

confidence: 99%

A universal dynamical model of dual-chamber air springs with experimental validation

Hou

Tong³

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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Experimentally and theoretically, this paper combines thermodynamics, aerodynamics and structural dynamics to give a universal dynamical model of dual-chamber air springs, with physical meanings of each stiffness and damping term. An indicator experiment was designed to verify the theory proposed in this paper. The experimental results show that the dynamic stiffness model can well reflect the hysteresis characteristics and the variable stiffness characteristics of the dual-chamber air spring. It can also clearly reveal the frequency dependence of the dynamic stiffness. Finally, based on the derived model, the influence regulation of each parameter term on the dynamic stiffness amplitude and hysteresis phase angle is given numerically. The results show that each term can influence different dynamic characteristic of the dual-chamber air springs. The conclusions of this article can provide positive guidance for the vehicle dynamics matching and design of air springs.

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Railway Vehicle Pneumatic Rubber Suspension Modelling and Analysis

Cited by 15 publications

References 5 publications

Research of the characteristics of an air spring under cyclic load

Research of the characteristics of an air spring under cyclic load

The Evolution of Vehicle Pneumatic Vibration Isolation: A Systematic Review

A universal dynamical model of dual-chamber air springs with experimental validation

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