Simulation and Test Study on Dynamic Characteristic of Air Spring with Auxiliary Chamber

Sun, Lishan; Li, Zhong Xxing; Shen, Xu; Zhu, Jia

doi:10.4028/www.scientific.net/amm.341-342.391

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…Te diference between the tapered and rolling sleeves is their variation in ride height, and they are designed to ft diferent vehicle applications [25]. Air springs are rated based on their load-carrying capacity, which is directly linked to the efective surface area (A w ) [26]. Te air spring's internal pressure (P i ) is the main determining factor of its natural frequency and stifness, defning the overall air suspension stifness (supporting force, F) where F � P i × A w [27].…”

Section: Airmentioning

confidence: 99%

“…FEM simulations are primarily centered on the infuence of the construction parameter of the stifness of the bellows, and they conform to 2D and 3D axisymmetric models. Te impact of the bellow construction parameter on its static vertical stifness is evaluated using fber-implemented shell models developed in Abaqus, which is the most employed software [26,56,57]. Meanwhile, some studies employed ANSYS, which is a multiphysics modeling tool suitable for many engineering disciplines.…”

Section: Types Of Pneumatic Suspension Systemmentioning

confidence: 99%

See 1 more Smart Citation

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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Section: Airmentioning

confidence: 99%

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

View full text Add to dashboard Cite

show abstract

Structural Optimization of Machine Tool Column Based on Dynamic Characteristic Analysis and Response Surface

Bao

Zeng

2020

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

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Neuro-Fuzzy Volume Control for Quarter Car Air-Spring Suspension System

et al. 2021

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One type of vehicle suspension system is the air suspension system. One of the important functions of the suspension system is to reduce vibration transmitted to the vehicle body from road unevenness. Soft suspension results in better ride comfort and worst handling. While stiff suspension results in better handling and worse comfort. This paper investigates the performance of air suspension in terms of passenger ride comfort and vehicle handling. The performance is tested once with Fuzzy logic control and another with Fuzzy control augmented with Neuro-Fuzzy inference system. A mathematical model is developed to describe the air-spring stiffness behavior. The air-spring suspension is merged on two degrees of freedom model. The air pressure is controlled by a Fuzzy controller as done previously in the literature. On the other hand, our approach is to control the volume change by connecting the air-spring volume to two additional unequal volumes through ON-OFF solenoid valves. The solenoid valves are controlled by Adaptive Neuro-Fuzzy Inference System (ANFIS). A single-degree-of-freedom setup was built from which the required training data for the ANFIS controller was carried out. The experimental setup is developed with variable excitation input in terms of frequency and amplitudes. The acceleration of the sprung mass has been measured and stored at different operating conditions and including different air volumes. The stored data is used for training of volume controller. The controller is tested with Sinusoidal excitation then with ISO 8608 road profile. It is found that increasing the air volume reduces the sprung mass acceleration. Also, the results showed that implementing the Neuro-Fuzzy controller with Fuzzy logic control reduces the sprung mass acceleration significantly by an average value that reaches 5 cm/s 2 at frequencies above 1 Hz while maintaining road holding.

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Simulation and Test Study on Dynamic Characteristic of Air Spring with Auxiliary Chamber

Cited by 3 publications

References 2 publications

The Evolution of Vehicle Pneumatic Vibration Isolation: A Systematic Review

The Evolution of Vehicle Pneumatic Vibration Isolation: A Systematic Review

Structural Optimization of Machine Tool Column Based on Dynamic Characteristic Analysis and Response Surface

Neuro-Fuzzy Volume Control for Quarter Car Air-Spring Suspension System

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