Dynamic Analysis of the Hydro-Pneumatic Front Axle Suspension of Agriculture Tractor

Mazhei, Andrei A.; Uspenskiy, Alexander A.; Ermalenok, Valery G.

doi:10.4271/2006-01-3526

Cited by 9 publications

(6 citation statements)

References 1 publication

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“…Innovation Summary [113] Patent Vibration damper and pneumatic suspension system A self-actuating pneumatic vibration damper with an air spring and a defned air chamber [114] Patent Pneumatic self-leveling suspension damper A damper with a pumping chamber that expands and contracts in response to normal road undulations to infate the air chamber [115,116] Article Dynamic analysis of the hydropneumatic front axle suspension of agriculture tractor A tractor front axle hydropneumatic suspension with single-acting cylinders and automatic level control [117] Patent Combination of the chassis frame and pneumatic suspension for vehicles Te invention is a simplifed chassis frame incorporating essential parts of the pneumatic suspension in the forming process [118] Patent Pneumatic suspension Te design involves an articulated component located on the air-spring cover near the air-spring bellows, which allows pivotal displacement when under pressure and forms a second air-spring loop that extends substantially in a radial direction [119] Article Adaptive sliding mode control-based nonlinear disturbance observer for active suspension with pneumatic spring An adaptive sliding mode controller based on nonlinear disturbance observer (NDOB) for improved passenger comfort and safety [120] Patent Suspension control valve arrangement for a pneumatic suspension system of a commercial vehicle Te design includes supply and delivery ports, an exhaust port, a service valve arrangement, and an operation control mechanism for switching the service valve arrangement modes [121] Article Design and performance analysis of the hydropneumatic suspension system for a novel road-rail vehicle A multicylinder hydropneumatic suspension system, modeled based on in-plane multibody dynamic and road models, to adapt to rough terrains and enhance the vehicle ride performance [122] Article Modeling and characteristics of hybrid coupling hydropneumatic suspension for a seven-axle vehicle Te system includes a hybrid coupling scheme of parallel connection and contralateral cross-linking based on the characteristics of high centroid position and low rollover threshold on hydropneumatic suspension (HPS) for a seven-axle elevated platform vehicle of traditional and new air suspension systems to compare their performance in reducing negative impacts on the road surface [128]. Additionally, some studies developed models to evaluate the efects of suspension systems on road surface friendliness and to analyze and evaluate the performance of air suspension systems with semiactive fuzzy control [129,130].…”

Section: References Typementioning

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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Section: References Typementioning

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

“…More attention will be paid to the comfort of vehicle with the development direction aimed to large-scale, high-speed and comfort. Many effective attempts were put forward to deal with this problem, and the results of research showed that one of the effective methods is to fix suitable front axle suspension in order to improve the vibrational characteristics of non-suspension off-road vehicles [Hyvaerinen, 2001;Mazhei, 2006]. Hydro-pneumatic suspension has the characteristic of smoothly variable stiffness, at the same time, its natural vibration frequency is much lower than that of common spring and will not change with load of vehicle [Schumann, 2003].…”

Section: Zhu Sihong LV Baozhanmentioning

confidence: 99%

Simulation on output force characteristics of damping-adjustable hydro-pneumatic suspension

Zhu

2009

2009 IEEE Intelligent Vehicles Symposium

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Based on the investigation of vibration characteristics of certain vehicle without suspension, a new type of damping-adjustable hydro-pneumatic suspension was put forward. Based on the analysis of working principle, the nonlinear mathematical and output force characteristic models of suspension were set up. Using MATLAB/Simulink, through adjusting initialization pressure and volume of accumulator, the diameter and number of orifice valve, the diameter of adjustable throttle and the amplitude and frequency of excitation, the influences of these parameters to output force characteristics were put forward. Simulation results show that initialization pressure of accumulator doesn't influence the curve shape of displacement and velocity characteristics of output force and doesn't influence the damping force of suspension, and orifice valve, adjustable throttle and excitation influence greatly to output force characteristics, especially to revert phase.

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“…For the tractor without implement, Martelli et al [38] pointed out the front axle elastic suspension had limited effect on the vertical vibration and driving safety depending on the driving conditions, while its effect on the pitch and lateral vibration is obvious [28]. Furthermore, Mazhei et al [39] found that when the implement is mounted in front of a tractor, the effect of the front axle elastic suspension relies on the damping element, but it was less effective than that without front implement. Apart from the linear elastic front axle suspension, the researchers also designed the hydropneumatic nonlinear suspension as the front axle suspension of the tractor.…”

Section: Introductionmentioning

confidence: 99%

Simulation of the Vibration Characteristics for Agricultural Wheeled Tractor with Implement and Front Axle Hydropneumatic Suspension

Zheng

Cui

Yang

et al. 2019

Shock and Vibration

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The dynamic model is significant for the analysis of the vibrational characteristics of the wheeled tractor system with implement and front axle hydropneumatic suspension. In this work, the nonlinear stiffness and damping equations are derived first. The dynamic coupling relationship among cabin, three-point hitch structure, and implement are figured out, and the dynamic model of the half agricultural wheeled tractor/implement system is presented considering the effects of three-point hitch structure, passive silent blocks of cabin, and front axle hydropneumatic suspension together. To validate the model, the power spectral densities (PSDs) of the driver seat, cabin, chassis, and implement acquired from numerical simulations are compared with those from experiments, respectively. Under different forward speeds, two groups of results match well. Based on the model, the influences of passive cabin suspension, implement, and front axle hydropneumatic suspension on the dynamical characteristics of the tractor system are investigated. Results indicate that the front axle hydropneumatic suspension will deteriorate the ride comfort of the driver but improve the handing stability. The passive cabin suspension reduces the operational stability while improving much more ride comfort than the front axle hydropneumatic suspension does. The driver’s comfortableness will be increased due to implement; meanwhile, handling stability will be compromised. Besides, the impacts of initial nitrogen volume, pressure of accumulators, and orifice diameter of throttle valves on the vibration characteristics of the tractor system are also inspected.

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Dynamic Analysis of the Hydro-Pneumatic Front Axle Suspension of Agriculture Tractor

Cited by 9 publications

References 1 publication

The Evolution of Vehicle Pneumatic Vibration Isolation: A Systematic Review

The Evolution of Vehicle Pneumatic Vibration Isolation: A Systematic Review

Simulation on output force characteristics of damping-adjustable hydro-pneumatic suspension

Simulation of the Vibration Characteristics for Agricultural Wheeled Tractor with Implement and Front Axle Hydropneumatic Suspension

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