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

Qin, Gang; Zhang, Yunqing; Chen, Liping

doi:10.2174/1874155x01206010026

Cited by 3 publications

(5 citation statements)

References 23 publications

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“…When the driver acts on the steering wheel, the wheels will turn at corresponding angles to make the vehicle turn. With 2 axles steer on the front, the steer wheels are linked via levers to ensure correct kinematics when turning [12,13,32]. The wheels on a steering axle still ensure alignment and are described by the Ackermann formula with the steering wheel rotation angle δSW being the input rule according to the following formulas:…”

Section: Model Of 2-axle Steering Systemmentioning

confidence: 99%

“…Rollover, on the other hand, is caused by a large inertial force that creates a moment strong enough to be a greater anti-rollover moment, causing the vehicle to rollover. This state can occur during turning maneuvers on roads with high adhesion coefficients, or even when colliding with other objects on roads with low adhesion coefficients [6,7,8,9].The structure of multiple steering axles and the kinematic alignment of the steering axle ensure the vehicle is more stable when turning [10,11,12,13]. The 'Walking Beam' suspension structure will help distribute the load and increase traction.…”

mentioning

confidence: 99%

“…The structure of multiple steering axles and the kinematic alignment of the steering axle ensure the vehicle is more stable when turning [10,11,12,13]. The 'Walking Beam' suspension structure will help distribute the load and increase traction.…”

mentioning

confidence: 99%

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A Simulation Approach to Investigate the Influence of the Steering Wheel Angle and Vehicle Speed on the Rollover of a 4-Axle Truck Vehicle During Turning on Wet Asphalt Road

Hung,

Khanh

2024

Preprint

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The article aims to investigate the influence of vehicle speed and steering wheel angle on the rollover condition of a 4-axle truck vehicle. A 30-degree-of-freedom (DOF) dynamic model of a 4-axle truck is established using the Multi-body system method and the Newton-Euler equation system. The vehicle body is described with 6 DOF in its center. Additionally, 2 DOFs are used to describe the roll motion of the front and rear masses of the vehicle body, taking into account the influence of the torsional stiffness of the vehicle frame on vehicle dynamics. The Burckhardt tire model is used to calculate the interaction forces between tires and the road, using experimental coefficients corresponding to wet asphalt roads with a maximum adhesion coefficient of 0.8. The simulation uses MATLAB-Simulink, with a speed range of 5 to 65 km/h and a steering wheel rotation angle ranging from 25 degrees to 300 degrees. At 60km/h, the maximum lateral acceleration reached 4,503 m/sec2 when simulated with a steering wheel angle of 175 degrees. The results have determined the vehicle rollover region based on the signs of the load transfer ratio of the axle and the entire vehicle. Together with the results of lateral acceleration, yaw rate, and roll angle of the vehicle, this result can be used to propose dynamic thresholds for designing early warning systems and anti-rollover control systems for multi-axle truck vehicles.

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Section: Model Of 2-axle Steering Systemmentioning

confidence: 99%

mentioning

confidence: 99%

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A Simulation Approach to Investigate the Influence of the Steering Wheel Angle and Vehicle Speed on the Rollover of a 4-Axle Truck Vehicle During Turning on Wet Asphalt Road

Hung,

Khanh

2024

Preprint

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“…Hierarchical optimization of steering linkage was done by dividing the system into number of sub-system objective functions. Results revealed that hierarchical optimization procedure is more effective and robust as compared to the simultaneously optimized system [4]. Researcher also studied dynamic simulation of steering mechanism by varying force with respect to time [5].…”

Section: Introductionmentioning

confidence: 99%

Structural Analysis and Optimization of Pitman ARM

Sonawane¹,

Sonawane²

2020

IJERT

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Now a day's automotive OEM are concentrating on vehicles efficiency and cost effectiveness to reach out with competitors. In order to achieve cost effectiveness optimization of less critical components is necessary. Pitman arm seems to be an overdesigned part. Pitman arm used to steer vehicle is redesigned and modified for achieving less weight and thus cost. Reverse engineering technique is used to model existing pitman arm by CATIA V5 software. The structural optimization is done on the pitman arm using Optistruct tool. Structure of pitman arm is changed by removing the material from the surface where stress value is low. The testing of Pitman arm is carried out for static analysis and fatigue analysis and the results are compared with the experimental results. Static analysis results of existing pitman arm proved that the model is more stable and there was scope for optimization. The weight of original Pitman arm model was 974 gm and that of the new optimized model 840 gm. Weight of the Pitman arm after optimization is reduced by 14%. FEA of optimized Pitman arm has shown 1108.0 microstrain whereas that of the experimental testing shown 1024.39 microstrain. The comparison, between fatigue life results of existing and optimized pitman arm has been performed and it is observed that the pitman arm is having infinite life. The above study confirmed that optimized pitman arm is structurally stable with good fatigue life.

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“…3.3. This kind of multi-axle vehicle can only have one non-steerable axle to guarantee steerability without slipping, and all the wheels are required to share the same center of rotation at any moment as stated in [91] and [92]. The three-axle vehicle of width w v in Fig.…”

Section: Multi-axle Vehiclementioning

confidence: 99%

Clothoid spline based path planning

Chen¹

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I would like to express my sincere thanks and appreciation to my supervisor, Prof.Yiyu Cai for his invaluable guidance and continuous support in this research. His knowledge and suggestions benefit me a lot, while his patience, encouragement, and attitude help me to overcome the difficulties encountered in my life and research. I also would like to thank my co-supervisor, Prof. Daniel Thalmann, for his suggestions and support in my research from various perspectives. Besides my supervisors, I would like to give my special thanks to Prof. Jianmin Zheng for his insightful commentary and generous help in this research. I want to thank Nanyang Technological University and the School of Mechanical and Aerospace Engineering for granting me this study opportunity. Besides, great thanks also goes to the Institute for Media Innovation and the Virtual Reality and Visualization Lab which provide excellent environments for my research.

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

Cited by 3 publications

References 23 publications

A Simulation Approach to Investigate the Influence of the Steering Wheel Angle and Vehicle Speed on the Rollover of a 4-Axle Truck Vehicle During Turning on Wet Asphalt Road

A Simulation Approach to Investigate the Influence of the Steering Wheel Angle and Vehicle Speed on the Rollover of a 4-Axle Truck Vehicle During Turning on Wet Asphalt Road

Structural Analysis and Optimization of Pitman ARM

Clothoid spline based path planning

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