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Journal articles on the topic 'Pneumatic suspension system'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Liu, P. J., S. Rakheja, and A. K. W. Ahmed. "PROPERTIES OF AN INTERCONNECTED HYDRO-PNEUMATIC SUSPENSION SYSTEM." Transactions of the Canadian Society for Mechanical Engineering 19, no. 4 (1995): 383–96. http://dx.doi.org/10.1139/tcsme-1995-0020.

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The static and dynamic properties of a vehicle suspension comprising hydraulic struts interconnected in the roll plane are investigated. The fundamental properties of the interconnected suspension are investigated and compared to those of the unconnected suspensions with and without the anti-roll bar, in terms of load-carrying capacity, suspension rate, roll stiffness as well as damping characteristics. The anti-roll performance of the interconnected suspension is analyzed for excitations encountered during directional manoeuvres. The ride quality performance is evaluated for excitations occur

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2

Morales, Angel L., Antonio J. Nieto, José M. Chicharro, and Publio Pintado. "A semi-active vehicle suspension based on pneumatic springs and magnetorheological dampers." Journal of Vibration and Control 24, no. 4 (2016): 808–21. http://dx.doi.org/10.1177/1077546316653004.

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Semi-active and active suspensions can improve both ride comfort and handling compared to passive suspensions. The authors have proposed a suspension comprising a pneumatic system capable of changing the stiffness of the suspension and a semi-active magnetorheological damper capable of controlling the suspension damping. Eight configurations of this magnetorheological/pneumatic suspension result from combining two possible stiffnesses (compliant and stiff) and four possible means of producing damping (constant low, constant high, on-off skyhook control and on-off balance control). The minimiza

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3

Boopathi, M., S. R. Gauthamnithin, and S. Harikrishnan Prof Dr G. Kumaresan. "Hydro-Pneumatic Suspension with Intelligent Active Suspensioning System." International Journal of Trend in Scientific Research and Development Volume-2, Issue-3 (2018): 436–40. http://dx.doi.org/10.31142/ijtsrd10916.

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4

Raine, J. K., and R. J. Henderson. "A two-degree-of-freedom ambulance stretcher suspension Part 1: System overview." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 212, no. 2 (1998): 93–102. http://dx.doi.org/10.1243/0954407981525821.

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Ambulance suspensions often give a poor ride, which may result in deterioration in the condition of ill or injured patients. Suspension of the ambulance stretcher itself is a lower cost option than a purpose- built ambulance suspension and may offer superior isolation of the patient from road-induced disturbances. This paper describes the development of a pneumatic stretcher suspension offering both pitch and heave isolation. Design and theoretical considerations are outlined, and preliminary performance figures reported. Subsequent parts of this paper will explore the dynamics of the system w

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M., Boopathi, R. Gauthamnithin S., and Harikrishnan |. Prof. Dr. G. Kumaresan S. "Hydro Pneumatic Suspension with Intelligent Active Suspensioning System." International Journal of Trend in Scientific Research and Development 2, no. 3 (2018): 436–40. https://doi.org/10.31142/ijtsrd10916.

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A shock absorber is a mechanical device designed to smooth out or damp a sudden shock impulse and dissipate kinetic energy. Without shock absorbers, the vehicle would have a bouncing ride, as energy is stored in the spring and then released to the vehicle, possibly exceeding the allowed range of suspension movement, Control of excessive suspension movement without shock absorption requires stiffer springs, which would in turn give a harsh ride. Shock absorbers allow the use of soft springs while controlling the rate of suspension movement in response to bumps. Now the project has mainly concen

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Abd - Elwahab, M. Rabie, Ahmad O. Moaaz, Waleed Fekry Faris, Nouby M. Ghazaly, and Mostafa M. Makrahy. "Evaluation the New Hydro-Pneumatic Damper for Passenger Car using LQR, PID and H-infinity Control Strategies." Automotive Experiences 7, no. 2 (2024): 207–23. https://doi.org/10.31603/ae.10796.

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In this study, a mathematical model of a new hydro-pneumatic damper consists of a double-acting cylinder, two oil chambers, a damping valve, and an accumulator is developed to assess its response to vertical vibrations in a passenger car. The main idea of the new damper aim to make that the damping coefficient in compression differ than that in rebound which achieve more stability specially during cornering. The damping coefficient difference in compression and rebound can be achieved due to the presence of accumulator. Both passive and active hydro-pneumatic suspension systems with the new da

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Gorabal, S. V., S. N. Kurbet, and K. K. Appukuttan. "Design and Evaluation of Hydro-Pneumatic Friction Damper Suspension System." International Journal of Manufacturing, Materials, and Mechanical Engineering 1, no. 4 (2011): 65–74. http://dx.doi.org/10.4018/ijmmme.2011100105.

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Perceived comfort level and ride stability are the two most important factors in the evaluation of suspension system in a mobile vehicle. It is extremely difficult to simultaneously maintain a high standard of vehicle ride, handling and body control in the vehicle by using conventional passive suspension system. However, the use of active suspensions would result in better comforts than the passive ones. This paper presents the design and analysis of a pneumatic friction damper and hydro-pneumatic friction damper. A non-linear quarter car model is developed, which includes pneumatic actuation

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Chen, Yuansi, Min Jiang, Fufeng Yang, et al. "Research on Dynamic Modeling and Control of Magnetorheological Hydro-Pneumatic Suspension." Actuators 14, no. 2 (2025): 73. https://doi.org/10.3390/act14020073.

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A novel magnetorheological semi-active hydro-pneumatic suspension system was proposed to overcome the shortcoming of the traditional hydro-pneumatic suspension without adaptive vibration damping function. It is based on the magnetorheological semi-active vibration reduction technology to effectively improve the ride performance of the vehicle. Firstly, a nonlinear model was established with the Bouc–Wen model based on the mechanical property test results of magnetorheological hydro-pneumatic spring. Secondly, the dynamic model of the single-wheel magnetorheological hydro-pneumatic suspension s

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9

Song, Yong, Shichuang Liu, Jiangxuan Che, Jinyi Lian, Zhanlong Li, and Qinglu Shi. "A Pneumatic Artificial Muscle Bionic Kangaroo Leg Suspension." Recent Patents on Mechanical Engineering 12, no. 4 (2019): 357–66. http://dx.doi.org/10.2174/2212797612666190808100422.

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Background: Vehicles generally travel on different road conditions, and withstand strong shock and vibration. In order to reduce or isolate the strong shock and vibration, it is necessary to propose and develop a high-performance vehicle suspension system. Objective: This study aims to report a pneumatic artificial muscle bionic kangaroo leg suspension to improve the comfort performance of vehicle suspension system. Methods: In summarizing the existing vehicle suspension systems and analyzing their advantages and disadvantages, this paper introduces a new patent of vehicle suspension system ba

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Zhu, Wenfeng, Zenglu Zhao, Xingtong Zhou, et al. "Research on Damping Hole Optimization of Hydro-Pneumatic Suspension for Mining Trucks under Variable Load Conditions." Actuators 13, no. 5 (2024): 163. http://dx.doi.org/10.3390/act13050163.

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The hydro-pneumatic suspension, known for enhancing vehicle ride comfort and stability, finds widespread use in engineering vehicles. Presently, the majority of mining trucks employ hydro-pneumatic suspension with a fixed damping hole, underscoring the critical importance of selecting appropriate damping hole parameters. Initially, an equilibrium mathematical model of the ¼ hydro-pneumatic suspension is established, and the influencing factors of the damping characteristics are analyzed. Subsequently, the simulation model and experimental bench for the hydro-pneumatic suspension are constructe

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11

Oh, Jooseon, Woo-Jin Chung, Hyun-Woo Han, Ji-Tae Kim, Gwan-Hee Son, and Young-Jun Park. "Evaluation of Tractor Ride Vibrations by Cab Suspension System." Transactions of the ASABE 63, no. 5 (2020): 1465–76. http://dx.doi.org/10.13031/trans.13795.

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HighlightsTractor ride vibrations were evaluated under various conditions according to type of cab suspension.Ride vibrations were measured on flat and bumpy roads using four tractors with different cab suspension types.Tractors with hydro-pneumatic suspension exhibited smaller ride vibrations than tractors with rubber mounts.Semi-active hydro-pneumatic control resulted in smaller ride vibrations than those resulting from passive control.Abstract. In this study, tractor ride vibrations were evaluated under various conditions according to the type of cab suspension, and the effects of different

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KAVHEKAR, GOPIRAJ PRABHAKAR, and KULKARNI S.N PROF. "ANALYSIS OF HYDRO-PNEUMATIC SUSPENSION SYSTEM FOR RALLY TRUCK AND TO CHECK ITS FEASIBILITY FOR COMMERCIAL DELIVERY VANS." JournalNX - A Multidisciplinary Peer Reviewed Journal 3, no. 5 (2017): 28–30. https://doi.org/10.5281/zenodo.1446212.

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The suspension system is the main part of the vehicle, where the shock absorber is designed mechanically to handle shock impulse and dissipate kinetic energy. The basic study of hydro pneumatic suspension system is carried out for GINAF rally truck which has been as a part of this project to get a basic idea regarding the system and applicability in commercial vans. As spring is basic element of any suspension system, study and analysis of the spring is carried out. Optimization of the spring for the generalized suspension is done and checked in modal as well as structural analysis in ANSYS. A

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Xing, Bang Sheng, Ning Ning Wang, and Le Xu. "Study on Nonlinear Damping Properties of Hydro-Pneumatic Suspension System for XP302-Pneumatic Tyred Roller." Advanced Materials Research 945-949 (June 2014): 987–91. http://dx.doi.org/10.4028/www.scientific.net/amr.945-949.987.

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The nonlinear stiffness and damping properties of the hydro-pneumatic suspension system are introduced, and the nonlinear mathematical model of it is established. Using MATLAB 2009b to establish the computer simulation program and draw out the nonlinear stiffness curve and damping properties curve of the hydro-pneumatic suspension system. Then, researching the influences of related parameters' changes on the nonlinear stiffness and damping properties of the hydro-pneumatic suspension system. The simulation of vehicle dynamic performance research's foundation is provided.

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Lyashenko, M. V., V. V. Shekhovtsov, and A. I. Iskaliev. "MATHEMATICAL MODEL OF A PNEUMATIC RELAXATION OF SEAT SUSPENSION WITH ENERGY RECUPERATION." Traktory i sel hozmashiny 84, no. 4 (2017): 30–37. http://dx.doi.org/10.17816/0321-4443-66281.

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Simulink MatLAB, амплитудно-частотная характеристика. The paper proposes a mechanism and an algorithm for controlling a single-bearing pneumatic relaxation suspension system with energy recovery of oscillations applied to the standard seat of operator of Sibeko traction vehicle. Experimental studies of the static characteristic of a pneumatic suspension of a standard seat with a nonlinear elastic-damping characteristic have been performed. A mathematical model of a pneumatic relaxation seat suspension with two additional volumes of air is created, between which is installed an air motor - recu

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15

Kuz'min, V. A., and Z. A. Godzhaev. "Comparative evaluation of the effectiveness of the vibration protection of the active suspension system with PID control." Traktory i sel hozmashiny 85, no. 3 (2018): 62–67. http://dx.doi.org/10.17816/0321-4443-66407.

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The pneumatic suspension is used to absorb vibration and provide comfortable labor conditions for transportation vehicle drivers. The cause of increased vibration of the tractor, often, are incorrectly matched elastic-damping characteristics of the cushions of the active suspension system, which can not cope (or cope extremely ineffectively) with fluctuations coming from the external background. Since the realization of an experiment for the dynamic analysis of pneumatic suspension takes a long time, the mathematical models of the vehicle suspension system are used to obtain the response param

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16

Nakaznoy, Oleg A., and Alexander A. Tsipilev. "Method for analyzing parameters of single-level pneumatic elastic elements with backpressure." Traktory i sel hozmashiny 89, no. 1 (2022): 23–30. http://dx.doi.org/10.17816/0321-4443-99890.

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BACKGROUND: Trucks, as a rule, have a significate difference between the kerb and gross weights. Usual spring or leaf suspensions do not allow to have acceptable values of static running and suspension stiffness at different machine loading, and pneumatic elastic elements, despite their relative simplicity, are mainly implemented only on overseas technology samples, and designers do not pay attention to pneumatic elastic elements with counterpressure. One of determinants of truck users is the acceptable vibration loading of the drivers seat. Trucks with a carrying capacity comparable or even o

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17

Mahmood, Mahmood S., Ameen A. Nassar, and Haider M. Mohammad. "Study of Performance of Incorporating Pneumatic Suspension System with the Hydraulic Actuator for Quarter Car and Using Controllers with Genetic Algorithm." Instrumentation Mesure Métrologie 21, no. 4 (2022): 151–58. http://dx.doi.org/10.18280/i2m.210405.

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Suspension systems are one of the main parts of the vehicle that provide the passenger comfort and stability, while it is difficult for conventional passive suspension systems to cope with the vibrations to which the vehicle is exposed. Air suspension systems have a dynamic character that allows good handling of the road and a comfortable ride, but in a certain area for this reason the stiffness of the air suspension must be flexibly changed. The air suspension has been developed with the inclusion of a hydraulic actuator to create an additional force that withstands the incoming vibration fro

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18

Woś, Piotr, and Ryszard Dindorf. "A pneumatic semi-active seat suspension." Mechanik 90, no. 2 (2017): 114–17. http://dx.doi.org/10.17814/mechanik.2017.2.30.

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Presented are issues related to improvement of the vibration isolating properties of semi-active seat suspension. It shows the practical implementation of the force control system for pneumatic spring which was mounted in mass-produced seat suspension. Output control function for pressure valve of pneumatic supply system was proposed. The developed solution allowed to carry out the research of air spring applied to a semi-active suspension system.

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19

Sun, Zhibo, Yan Shi, Na Wang, Jian Zhang, Yixuan Wang, and Shaofeng Xu. "Mechanism and Optimization of a Novel Automobile Pneumatic Suspension Based on Dynamic Analysis." Electronics 10, no. 18 (2021): 2232. http://dx.doi.org/10.3390/electronics10182232.

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Pneumatic suspension is the most significant subsystem for an automobile. In this paper, a simplified and novel pneumatic spring structure with only a conical rubber surface is presented and designed to reduce the influence of external factors besides the pneumatic. The nonlinear stiffness of the pneumatic spring is analyzed based on the ideal gas model and material mechanics. Natural frequency analysis and the transmission rate of the pneumatic suspension are obtained as two effect criteria for the dynamic model. The vibration isolation system platform is established in both simulation and pr

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20

Kuzyshyn, Andrii, Vitalii Kovalchuk, Volodymyr Stankevych, and Volodymyr Hilevych. "Determining patterns in the influence of the geometrical parameters of the connecting pipeline on the dynamic parameters of the pneumatic spring of railroad rolling stock." Eastern-European Journal of Enterprise Technologies 1, no. 7 (121) (2023): 57–65. http://dx.doi.org/10.15587/1729-4061.2023.274180.

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The object of this study is the process of determining the dynamic indicators of the pneumatic spring, which is used as the main element of the second stage of spring suspension in the high-speed rolling stock of the railroad, based on the influence of the geometric parameters of the connecting pipeline. It has been established that the dynamic indicators of rolling stock mainly depend on the operation of the pneumatic spring, the characteristics of which are largely determined by the geometric parameters of the connecting element between the pneumatic spring and the additional tank. A mathema

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Andrii, Kuzyshyn, Kovalchuk Vitalii, Stankevych Volodymyr, and Hilevych Volodymyr. "Determining patterns in the influence of the geometrical parameters of the connecting pipeline on the dynamic parameters of the pneumatic spring of railroad rolling stock." Eastern-European Journal of Enterprise Technologies 1, no. 7(121) (2023): 57–65. https://doi.org/10.15587/1729-4061.2023.274180.

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The object of this study is the process of determining the dynamic indicators of the pneumatic spring, which is used as the main element of the second stage of spring suspension in the high-speed rolling stock of the railroad, based on the influence of the geometric parameters of the connecting pipeline. It has been established that the dynamic indicators of rolling stock mainly depend on the operation of the pneumatic spring, the characteristics of which are largely determined by the geometric parameters of the connecting element between the pneumatic spring and the additional tank. A mathema

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22

Henderson, R. J., and J. K. Raine. "A two-degree-of-freedom ambulance stretcher suspension, Part 2: Simulation of system performance with capillary and orifice pneumatic damping." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 212, no. 3 (1998): 227–40. http://dx.doi.org/10.1243/0954407981525920.

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Part 1 of this paper gave an overview of the design and dynamics of a two-degree-of-freedom pneumatic stretcher suspension. Part 2 reviews pneumatic damping methods and then investigates system isolation performance using capillary and orifice damping restrictions. These restrictors are compared by numerical simulation of the suspension response when subjected to vertical transient inputs from the ambulance floor. Very good isolation of the stretcher patient is shown to be possible when a suitable damping restriction is used. Brief observations are also made regarding expected suspension perfo

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23

El-Tawwab, Ali M. Abd. "Advanced Hydro-Pneumatic Semi-Active Suspension System." Journal of Low Frequency Noise, Vibration and Active Control 20, no. 2 (2001): 93–103. http://dx.doi.org/10.1260/0263092011493190.

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Ho, Cong Minh, and Kyoung Kwan Ahn. "Extended State Observer-Based Adaptive Neural Networks Backstepping Control for Pneumatic Active Suspension with Prescribed Performance Constraint." Applied Sciences 13, no. 3 (2023): 1705. http://dx.doi.org/10.3390/app13031705.

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Pneumatic actuator is one of the key technologies in the field of active suspension due to its low cost, cleanliness, and high power-to-weight ratio characteristics. However, the dynamic models and control strategies of the pneumatic suspension have not been well demonstrated because they are nonlinear systems. Besides, the vertical displacement stability of sprung mass is very important for ensuring ride comfort, but accurate control is still a challenging problem in the presence of parametric uncertainties. In this study, an adaptive neural networks backstepping scheme is designed for the st

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Huang, Chung Neng, Kuo Han Chen, and David T. W. Lin. "Development of an Novel Adaptive Suspension System Based on Ball-Screw Mechanism." Applied Mechanics and Materials 477-478 (December 2013): 128–31. http://dx.doi.org/10.4028/www.scientific.net/amm.477-478.128.

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For the passive and semi-active suspensions are characterized as with constant parameters which cannot cope with time-variant road conditions, the suspension results are difficult to be satisfied. Although, the active ones are better than previous two on suspension performance, until now which are still far from real application for the drawbacks of complicated structure, large volume, costly, and difficult maintenance. Here, Ball Screw (BS) is with the characteristics of smaller volume, precise positioning, and well handling high-speed forward and backward transmissions. Instead of hydraulic

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Sun, J. H., Zhi Song Gao, X. H. Shan, Li Zhang, and Yang Yu Wang. "On Pneumatic Installation Technology of Modal Testing Suspension System." Advanced Materials Research 69-70 (May 2009): 690–94. http://dx.doi.org/10.4028/www.scientific.net/amr.69-70.690.

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Modal testing is essential to correct the structure of dynamics model and optimize structure designs. First, the principle and the application of modal testing system are introduced in this paper. Then, through the theoretical calculation, the frequency of the air spring is achieved in this suspension system. And the influence of the baric fluctuation to the rigid suspension system is analyzed. In order to achieve an ultra low frequency request at 0.03Hz, methods of reducing the baric fluctuation are proposed here. Through the analysis, we successfully design a modal testing suspension system

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Yang, L., Fan Yang, and M. B. Xia. "Modeling and Dynamic Analysis of a Novel Hydro-Pneumatic Suspension System." Applied Mechanics and Materials 772 (July 2015): 188–91. http://dx.doi.org/10.4028/www.scientific.net/amm.772.188.

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This study presents a modeling procedure and dynamic analysis for a novel hydro-pneumatic suspension system, in which the gas chamber has been integrated into the main structures. The modeling of the novel hydro-pneumatic suspension system has been established based on the mass conservation and force balance and the dimension has been obtained through a design optimization approach. The simulation results of the established model have been compared with those obtained through ADAMS, and good match can be observed.

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Sidorov, Oleg, Aleksandr Smerdin, Mikhail Mikhailov, Victor Philippov, Gleb Ermachkov, and Elena Butenko. "The use of PI-algorithm for high-speed electric rolling stock automatic control system." E3S Web of Conferences 515 (2024): 01024. http://dx.doi.org/10.1051/e3sconf/202451501024.

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The article is devoted to analysis of automatic control systems used to optimize current collection on high-speed railway electric rolling stock. A classification of automatic control systems has been developed. The use of automatic control systems that change the pantograph static force can significantly improve the quality of the current collection. However, their use changes the compression of the elastic elements of the panhead suspension, which can ultimately lead to its complete compression and breakaways. To solve this problem, authors propose using intra-spring pneumatic elements in pa

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Henderson, R. J., and J. K. Raine. "Technical Note: A two-degree-of-freedom ambulance stretcher suspension: Part 3: Laboratory and road test performance." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 212, no. 5 (1998): 401–7. http://dx.doi.org/10.1243/0954407981526055.

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Parts 1 and 2 of this paper gave a design overview and described the dynamics of a prototype two-degree-of-freedom pneumatic suspension for an ambulance stretcher. This concluding part briefly reviews laboratory shaker table and ambulance road test performance of the suspension with passive pneumatic damping. The suspension system is found to offer compact low-cost isolation with lower natural frequencies than achieved in earlier mechanical systems.

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Palomares, Eduardo, Angel L. Morales, Antonio J. Nieto, Jose M. Chicharro, and Publio Pintado. "Improvement of Comfort in Suspension Seats with a Pneumatic Negative Stiffness System." Actuators 9, no. 4 (2020): 126. http://dx.doi.org/10.3390/act9040126.

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This paper presents a Negative Stiffness System (NSS) for vibration isolation and comfort improvement of vehicle seats, which enhances the performance of optimized traditional passive seat suspensions. The NSS is based on a set of two Pneumatic Linear Actuators (PLAs) added to a seat supported by a pneumatic spring. One end of each PLA is joined to the seat while the other end is joined to the vehicle frame. In static conditions, the PLAs remain horizontal, whereas in dynamic conditions, their vertical forces work against the pneumatic spring, reducing the overall dynamic stiffness and improvi

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Gao, X. D., X. B. Chen, Y. Q. Wan, W. Nie, Y. J. Chen, and L. L. Pan. "Analysis and test of the heat generation and suppression of hydro-pneumatic suspension." Journal of Physics: Conference Series 2478, no. 10 (2023): 102033. http://dx.doi.org/10.1088/1742-6596/2478/10/102033.

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Abstract Hydro-pneumatic suspension is the important part of running system of vehicle, with wider working frequency band, frequent reciprocating motion and heavy impact load, whose important indicator is sealing performance. The heat generation law of hydro-pneumatic suspension is obtained under the sinusoidal excitation by calculating method, and the bench test of the temperature suppression is successfully achieved.

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Dai, Li, Yu Liu, Li Wang, and Jiaxing Wang. "Study on the stiffness and damping characteristics of a Single-Chamber Hydro-pneumatic suspension without Hydro-pneumatic separation." Journal of Physics: Conference Series 2951, no. 1 (2025): 012049. https://doi.org/10.1088/1742-6596/2951/1/012049.

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Abstract Hydro-pneumatic suspension can withstand large loads and impacts, significantly enhancing ride comfort. It is predominantly used in heavy-duty trucks, construction vehicles, and other types of vehicles that operate in complex and varied terrains. Based on the structural characteristics of the single-chamber hydro-pneumatic suspension without separation, a mechanical model is established to analyze the stiffness and damping characteristics of the suspension system. The effects of different initial pressures and volumes of nitrogen on stiffness, as well as the influence of the size of t

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Sun, Huilai, Ruichuan Li, Jikang Xu, Funing Xu, Bo Zhang, and Xinyuan Dong. "Fractional Modeling and Characteristic Analysis of Hydro-Pneumatic Suspension for Construction Vehicles." Processes 9, no. 8 (2021): 1414. http://dx.doi.org/10.3390/pr9081414.

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The motion differential equation of hydro-pneumatic suspension is established to describe the vibration characteristics for a certain type of construction vehicle. The output force was deduced from the suspension parameters. Based on the suspension characteristics of a multi-phase medium, fractional calculus theory was introduced, and its fractional Bagley–Torvik equation was formed. The numerical computation by a low-pass filter of the Oustaloup algorithm was performed. The numerical solution of a nonlinear fractional equation was obtained to investigate the vibration characteristics of the s

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Zhang, Peng, Yongchao Li, and Pengzhen Li. "Dynamic Characteristics Analysis of Hydro-Pneumatic Suspension System." Journal of Computational and Theoretical Nanoscience 13, no. 9 (2016): 5794–800. http://dx.doi.org/10.1166/jctn.2016.5490.

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Chen, Jie, Wei Liu, Renkai Ding, Dong Sun, and Ruochen Wang. "Reference Model-Based Backstepping Control of Semi-Active Suspension for Vehicles Equipped with Non-Pneumatic Wheels." Machines 13, no. 6 (2025): 476. https://doi.org/10.3390/machines13060476.

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In view of the deterioration of vehicle dynamic performance caused by the increased radial stiffness of a non-pneumatic wheel and its nonlinearity, a semi-active suspension error tracking backstepping control strategy based on the model reference method is proposed. Firstly, the segmental linearization of the nonlinear stiffness of the non-pneumatic wheels is carried out, and a quarter-vehicle system model integrating the non-pneumatic wheel and the semi-active suspension is established. Subsequently, a model reference system based on the H∞ control theory is designed. On this basis, a semi-ac

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Kushnir, V. G., O. A. Benyukh, I. N. Shilo, N. N. Romanyuk, and V. A. Ageychik. "Improvement of suspension system of mobile power units." Traktory i sel hozmashiny 81, no. 5 (2014): 37–39. http://dx.doi.org/10.17816/0321-4443-65620.

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Original designs of pneumatic-tyre movers and vehicle suspension are proposed. Their use will permit to increase reliability, operation durability, ride comfort, and cross-country capability of machine and tractor unit; to improve operator work conditions; to decrease vertical vibration and dynamic loads on supporting surface as well as soil compaction.

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Kuzyshyn, A., and V. Kovalchuk. "AN EXPERIMENTAL STUDY OF THE EFFECT OF AN ADDITIONAL TANK ON THE DEFORMATION OF THE PNEUMATIC SPRING OF HIGH-SPEED RAILWAY ROLLING STOCK." Collection of Scientific Works of the Ukrainian State University of Railway Transport, no. 208 (June 28, 2024): 162–72. http://dx.doi.org/10.18664/1994-7852.208.2024.308573.

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The use of a pneumatic spring suspension system in the second stage of spring suspension of high-speed rolling stock is an integral component of ensuring its permissible dynamic indicators and traffic safety indicators. This work is aimed at researching the deformation characteristics of the rubber-cord shell of the pneumatic spring in the vertical and horizontal directions, taking into account manometric pressure, external load and an auxiliary reservoir. To achieve the goal, a methodology for experimental studies of pneumatic spring deformation was developed using a test rig with an assemble

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Kuzyshyn, Andrii, Vitalii Kovalchuk, Yuliya Sobolevska, Yuriy Royko, and Ivan Kravets. "Determining the effect of additional tank volume and air pressure in the spring on the dynamic indicators of a pneumatic system of spring suspension in high-speed railroad rolling stock." Eastern-European Journal of Enterprise Technologies 3, no. 7 (129) (2024): 47–62. http://dx.doi.org/10.15587/1729-4061.2024.304051.

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The object of this study is the pneumatic system in the spring suspension of rolling stock under conditions of high-speed movement from 170 to 250 km/h. Based on the thermodynamic model of the pneumatic spring suspension system, the influence of volume of the additional tank and the initial pressure in the pneumatic spring on the nature of change in the spring's dynamic stiffness, energy losses, and damping coefficient was studied. Based on the built "force-deformation" dependences for the pneumatic spring, it was established that the change in the volume of an additional tank has a slight eff

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Maciejewski, Igor, Tomasz Krzyzynski, and Henning Meyer. "Modeling and vibration control of an active horizontal seat suspension with pneumatic muscles." Journal of Vibration and Control 24, no. 24 (2018): 5938–50. http://dx.doi.org/10.1177/1077546318763435.

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In the following paper, the dynamic modeling of a horizontal seat suspension which uses pneumatic muscles for the purpose of active vibration control is discussed. An original control system structure is proposed in order to improve the vibro-isolation properties of a horizontal seat suspension system. The presented control system design is based on inverse models of the pneumatic muscles and the primary controller that calculates the desired active force. By using the configurable control algorithm developed in this paper, it is possible to achieve a significant reduction in vibrations transm

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Демин, A. Demin, Исупов, S. Isupov, Хамитов, and R. Khamitov. "ELECTRO-PNEUMATIC ABSORBER IN THE VEHICLE SUSPENSION SYSTEMS." Alternative energy sources in the transport-technological complex: problems and prospects of rational use of 3, no. 1 (2016): 0. http://dx.doi.org/10.12737/17932.

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The article shows the limited capacity of the traditional (passive) suspension systems to meet the constantly increasing requirements imposed on modern motor vehicles, as well as the expediency of application of controlled suspension systems. Modeling of processes in the system with the electromagnetic compensator stiffness in the free vibration mode in the software package Matlab Simulink.

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41

Yang, Jue, Jun Feng Zhao, Yan Hua Shen, and Chen Yue Duan. "Influence of Variety of Oil Temperature on Performance of Hydro-Pneumatic Suspension." Applied Mechanics and Materials 40-41 (November 2010): 705–10. http://dx.doi.org/10.4028/www.scientific.net/amm.40-41.705.

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A test platform based on hydro-pneumatic suspension was set up to research the influence of temperature for the hydro-pneumatic suspension system. A series of experiments on damping holes of different diameters were carried out, and the temperature of oil and pressure on both sides of damping holes were recorded. A mathematical model of this platform was established using knowledge of fluid mechanics. The result of mathematical model was verified by experiments result, and the result is that oil temperature has little influence to working condition of suspension cylinder when it is between roo

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42

Jayaraman, Thiyagarajan, and Muthuramalingam Thangaraj. "Standalone and Interconnected Analysis of an Independent Accumulator Pressure Compressibility Hydro-Pneumatic Suspension for the Four-Axle Heavy Truck." Actuators 12, no. 9 (2023): 347. http://dx.doi.org/10.3390/act12090347.

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This paper has proposed a new hydro-pneumatic damper, allowing independent accumulator pressure compressibility from the chamber pressure which enhances isolation performances due its lower F-V hysteresis effect at moderate velocities. The system utilizes the generic hydraulic damper with two hydro-pneumatic accumulators and four check valves in its design. To evaluate the active suspension capability of proposed damper effectiveness, a 22-degrees-of-freedom (DOF), four-axle truck model is integrated with a hydraulic control valve, which is built in an LMS-AME sim environment. Then, the model

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Woś, Piotr, and Ryszard Dindorf. "Studies of properties of the seat suspension system with air spring." EPJ Web of Conferences 213 (2019): 02101. http://dx.doi.org/10.1051/epjconf/201921302101.

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This article presents issues related to the study of the seat vibration isolating properties of the working machine. The spring force of the suspension system is realized by means of a pneumatic spring. The mathematical model of the air spring is presented. The results of research presented in the form of power spectral density of the vibration acceleration of the suspension system.

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Pintado, P., C. Ramiro, A. L. Morales, A. J. Nieto, and J. M. Chicharro. "The dynamic behavior of pneumatic vibration isolators." Journal of Vibration and Control 24, no. 19 (2017): 4563–74. http://dx.doi.org/10.1177/1077546317730243.

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The ubiquity of pneumatic vibration isolators, especially in heavy road vehicle suspensions and in passenger rail vehicle secondary suspensions, has boosted research interest in these systems. Thermodynamic models have been used in order to inform and support engineering design decisions. Most models assume that the air inside the system undergoes a polytropic transformation during the compression/expansion cycle, but the necessary polytropic index value is often guessed at and seldom measured. This paper presents measured polytropic indexes that contradict the traditional assumptions with res

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Sharp, R. S., and J. H. Hassan. "Performance Predictions for a Pneumatic Active Car Suspension System." Proceedings of the Institution of Mechanical Engineers, Part D: Transport Engineering 202, no. 4 (1988): 243–50. http://dx.doi.org/10.1243/pime_proc_1988_202_181_02.

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A mathematical model of a pneumatic active car suspension system in a single wheel station form excited by realistic road roughness input is set up. The active control is exerted through a d.c. motor-driven air-pump. The model is used to show that essentially all the advantages of active control, within the terms of reference, are obtained by employing the control only at low frequencies and having the suspension parameters adapt to the running conditions as they vary. Control laws are derived using limited state feedback, linear stochastic optimal control theory and power consumption, and spa

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Bouvin, Jean-Louis, Xavier Moreau, André Benine-Neto, Alain Oustaloup, Pascal Serrier, and Vincent Hernette. "CRONE control of a pneumatic self-leveling suspension system." IFAC-PapersOnLine 50, no. 1 (2017): 13816–21. http://dx.doi.org/10.1016/j.ifacol.2017.08.2187.

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Sidorov, Oleg, Aleksandr Smerdin, Mikhail Mikhailov, and Gleb Ermachkov. "Experimental studies of pantograph head suspension equipped with controlled pneumatic elements." E3S Web of Conferences 431 (2023): 08011. http://dx.doi.org/10.1051/e3sconf/202343108011.

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The article describes factors which affect the panhead elastic elements performance during their operation. An analysis of these factors shows the need to use elastic elements with a controlled static characteristic at constant stiffness to ensure reliable current collection. The existing controlled pneumatic elements used in the panhead suspension of electric rolling stock are considered. Authors offer to use intra-spring pneumatic elements in panhead suspension. A study of the interaction of a pantograph and an overhead contact line is described. A methodology for experimental studies of pan

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Huang, Rongnan, Ao Yin, Yujie Shen, Fu Du, and Xiaofeng Yang. "Optimizing Hydro-Pneumatic Inerter Suspension for Improved Ride Comfort and Handling Stability in Engineering Vehicles Using Simulated Annealing Algorithm." World Electric Vehicle Journal 15, no. 2 (2024): 36. http://dx.doi.org/10.3390/wevj15020036.

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This study introduces a novel hydro-pneumatic inerter suspension (HPIS) system for engineering vehicles, aiming at enhancing ride comfort and handling stability. The research focuses on addressing the limitations of conventional suspension systems by incorporating an inerter element into the vehicle suspension. The unique aspects of HPIS, such as nonlinear stiffness and nonlinear damping characteristics of the hydro-pneumatic spring, are explored. Firstly, a half-car dynamic model of the HPIS suspension is established, and an improved simulated annealing algorithm is applied to optimize the su

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Hu, Yaozeng, Jianze Liu, Zhuang Wang, Jingming Zhang, and Jiang Liu. "Research on Electric Oil–Pneumatic Active Suspension Based on Fractional-Order PID Position Control." Sensors 24, no. 5 (2024): 1644. http://dx.doi.org/10.3390/s24051644.

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In this study, an electric oil and gas actuator based on fractional-order PID position feedback control is proposed, through which the damping coefficient of the suspension system is adjusted to realize the active control of the suspension. An FOPID algorithm is used to control the motor’s rotational angle to realize the damping adjustment of the suspension system. In this process, the road roughness is collected by the sensors as the criterion of damping adjustment, and the particle swarm algorithm is utilized to find the optimal objective function under different road surface slopes, to obta

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Yang, Fan, Yuefeng Du, Wei Li, Zhen Li, Enrong Mao, and Zhongxiang Zhu. "Innovative Design Method of Hydro-Pneumatic Suspension for Large High-Clearance Sprayer Based on Improved NSGA-II Algorithm." Agriculture 13, no. 5 (2023): 1071. http://dx.doi.org/10.3390/agriculture13051071.

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Large high-clearance sprayers are widely used in the field of plant protection due to their high work efficiency. Influenced by the characteristics of a large ground clearance, fast driving speed and constantly changing sprung mass, how to solve the contradiction between the vibration reduction performance of a large sprayer and the friendliness of farmland roads has become a current research hotspot. In order to improve the driving performance of the sprayers, the design, optimization and verification scheme of the hydro-pneumatic suspension of a large sprayer based on the improved NSGA-II al

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