Dynamic effect of the bump steer in a wheeled tractor

Simionescu, P. A.; Beale, David G.; Talpasanu, Ilie

doi:10.1016/j.mechmachtheory.2006.10.007

Cited by 11 publications

(6 citation statements)

References 10 publications

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“…At present, there are many studies on the full hydraulic steering system [7][8][9][10]. Bingwei Cao studied the influence of the position of the hinge point of the steering cylinder of the wheel loader on the pressure fluctuation of the steering system, and optimized the position of the hinge point to reduce the pressure fluctuation [11].…”

Section: Introductionmentioning

confidence: 99%

Research on Steering Vibration Analysis of Wheel Loader and Cushion Valve Design

Wang

Zhu

et al. 2022

Energies

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At present, the wheel loaders on the market have steering vibration problems, which can be summarized as follows: the front frame and the cab vibrate violently at the beginning and at the end of steering. This paper analyzed the steering vibration mechanism by collecting the pressure at different positions of the hydraulic steering system and AMESim simulation. A cushion valve was designed to solve the problem of steering vibration. Finally, the prototype test was carried out and it was concluded that the cushion valve reduced the steering pressure starting shock by 50%, the stop vibration was reduced by 75%, and the suction problem no longer occurred. Further, the analysis provides theoretical and experimental basis for research on the steering system of loaders, and also provides new ideas for the design and optimization of vehicle steering systems.

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Section: Introductionmentioning

confidence: 99%

Research on Steering Vibration Analysis of Wheel Loader and Cushion Valve Design

Wang

Zhu

et al. 2022

Energies

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“…7 Most trucks and off-highway vehicles have rigid steering axles equipped with Ackermann steering linkage. 6 So synthesis of function generators is a common mechanism design problem for steering systems of vehicles. The deviation between the desired and the real pivoting angles given to the wheels by the steering mechanism is called steering error.…”

Section: Introductionmentioning

confidence: 99%

“…The generally used steering mechanisms for fourwheel vehicles are four-bar linkages 1,2 which are often called Ackermann-type steering mechanisms. [1][2][3][4][5][6] The input motion from the driver at the steering wheel is transmitted via a steering box and the steering control linkage to one of the steering knuckles and then transmitted to the other one through the Ackermann steering linkage. 6 The main kinematic requirement of the steering linkage of a vehicle is to provide the steerable wheels a correlated pivot such that their axes intersect at a point on the rear wheel axis.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4][5][6] The input motion from the driver at the steering wheel is transmitted via a steering box and the steering control linkage to one of the steering knuckles and then transmitted to the other one through the Ackermann steering linkage. 6 The main kinematic requirement of the steering linkage of a vehicle is to provide the steerable wheels a correlated pivot such that their axes intersect at a point on the rear wheel axis. 7 The objective for the synthesis of steering mechanism is to minimise the difference between the steering centres over the full range of steering angle inputs while fitting into a reasonable space.…”

Section: Introductionmentioning

confidence: 99%

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Design of an Ackermann-type steering mechanism

Zhao

Liu

Zhou

et al. 2013

Proceedings of the Institution of Mechanical Engineers, Part C:

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This article focuses on the synthesis of a steering mechanism that exactly meets the requirements of Ackermann steering geometry. It starts from reviewing of the four-bar linkage, then discusses the number of points that a common four-bar linkage could precisely trace at most. After pointing out the limits of a four-bar steering mechanism, this article investigates the turning geometry for steering wheels and proposes a steering mechanism with incomplete noncircular gears for vehicle by transforming the Ackermann criteria into the mechanism synthesis. The pitch curves, addendum curves, dedendum curves, tooth profiles and transition curves of the noncircular gears are formulated and designed. Kinematic simulations are executed to demonstrate the target of design.

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“…which influence the handling of the vehicle, in function of the operational factors of the system. Simionescu et al, [14] analyzed the steering system of a compact wheeled tractor using commercial multi-body simulation software. The effect of axle-oscillation induced steering errors and of the axle impacting the bump stops attached to the tractor body is compared for two design variants.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Optimization of the Double-Axle Steering Mechanism with Dynamic Loads

Qin¹,

Zhang²,

Chen³

2012

TOMEJ

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A hierarchical optimization procedure for the optimal synthesis of a double-axle steering mechanism used in truck with dynamic loads is presented. A multibody model of double-axle steering mechanism is presented to characterize the leaf spring effect. The influences of dynamic loads, the motion interference of steering linkage resulted from the elastic deformation of leaf spring, and the effects of wheel slip angles and the position discrepancies of wheel speed rotation centers are studied systematically. A hierarchical optimization method based on target cascading methodology is proposed to classify the design variables of double-axle steering mechanism into four levels. A double-axle steering mechanism for a heavy-duty truck is utilized to demonstrate the validity of the proposed method. The simulation results indicate that the hierarchical optimization procedure is effective and robust. And as a result, it will surely be widely used in engineering.

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Dynamic effect of the bump steer in a wheeled tractor

Cited by 11 publications

References 10 publications

Research on Steering Vibration Analysis of Wheel Loader and Cushion Valve Design

Research on Steering Vibration Analysis of Wheel Loader and Cushion Valve Design

Design of an Ackermann-type steering mechanism

Analysis and Optimization of the Double-Axle Steering Mechanism with Dynamic Loads

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