Rigid-flexible coupling modelling and dynamic performance analysis of novel flexible road wheel

Deng, Yaoji; Zhao, Youqun; Han, Xu; Lin, Fanghua; Wang, Qiuwei

doi:10.1177/1464419319874198

Cited by 8 publications

(4 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the following reasonable assumptions should be made before establishing the mathematical model. i.e., in rigid-flexible coupled analysis, except for the CB, the remaining parts, i.e., bogie and wheelset of a rail vehicle, are considered rigid bodies, each movement pair between the parts is a rigid connection, and the friction is generally not counted [32]. To evaluate the influence of the flexible components and obtain relatively accurate dynamic simulation results, the software of Solidworks and ANSYS was used to collaboratively model the rigid-flexible coupled co-simulation.…”

Section: Numerical Modelingmentioning

confidence: 99%

Mathematical Modeling and Simulation of Suspended Equipment Impact on Car Body Modes

2022

View full text Add to dashboard Cite

A passenger railway vehicle’s lightweight design is an efficient technique of reducing energy consumption and dynamic forces between wheel and rail. However, light design results in resonant vibration in a car body. To restrain resonant vibration, a correlation between the suspended equipment variables and the car body’s modal frequency was investigated in this paper. A rigid–flexible general model was developed to examine the impacts of different equipment suspended under the chassis based on mass, location, and frequency on the car body mode. In addition, the numerical model is validated through the experimental result in terms of ride quality. The results demonstrate that the underframe equipment’s suspension characteristics have a significant impact on the mode of the car body, particularly the frequency of the first bending mode. Equipment with a considerable mass should be suspended near the center of the car body to optimize the frequency of the car body’s high-frequency bending. The weight of the equipment has a significant impact on the car body’s first bending frequency. The frequency of heavy equipment should be low enough to promote high-frequency transmissibility and improve the vibration characteristics of the car body.

show abstract

Section: Numerical Modelingmentioning

confidence: 99%

Mathematical Modeling and Simulation of Suspended Equipment Impact on Car Body Modes

2022

View full text Add to dashboard Cite

show abstract

“…Presently, wheel improvements include research on non-pneumatic tyres, such as a new type of flexible load-bearing wheel designed by Deng et al, effectively reducing longitudinal vibrations during vehicle movement [24]. In addition, Rugsaj and Suvanjumrat designed a non-pneumatic tire based on a viscohyperelastic material model, which was proven to have good load-bearing capacity [25].…”

Section: Introductionmentioning

confidence: 99%

A toe-inspired rigid-flexible coupling wheel design method for improving the terrain adaptability of a sewer robot

Zhang,

Chen,

Shen

et al. 2024

Bioinspir. Biomim.

View full text Add to dashboard Cite

The human toe, characterized by its rigid-flexible structure comprising hard bones and flexible joints, facilitates adaptive and stable movement across varied terrains. In this paper, we utilized a motion capture system to study the adaptive adjustments of toe joints when encountering obstacles. Inspired by the mechanics of toe joints, we proposed a novel design method for a rigid-flexible coupled wheel. The wheel comprises multiple elements: a rigid skeleton, supporting toes, connecting shafts, torsion springs, soft tendons, and damping pads. The torsion springs connect the rigid frame to the supporting toes, enabling them to adapt to uneven terrains and pipes with different diameters. The design was validated through kinematic and dynamic modeling, rigid-flexible coupled dynamics simulation, and stress analysis. Different stiffness coefficients of torsion springs were compared for optimal wheel design. Then, the wheel was applied to a sewer robot, and its performance was evaluated and compared with a pneumatic rubber tire in various experiments, including movement on flat surfaces, overcoming small obstacles, adaptability tests in different terrains, and active driving force tests in dry and wet pipelines. The results prove that the designed wheel showed better stability and anti-slip properties than conventional tires, making it suitable for diverse applications such as pipeline robots, desert vehicles, and lunar rovers.

show abstract

“…As an excellent 3D multi-body system dynamics simulation software, RecurDyn is widely used in the dynamics simulation of vehicles. [30][31][32][33][34] The advantage of this software is the ability to solve the large deformations of nonlinear materials and to provide an interface for coupling with EDEM, thus enabling bidirectional coupling of particles and machine component. EDEM has proved to be high-performance DEM simulation software for particle-related research in aerospace, chemicals, pharmaceuticals, food, and agricultural.…”

Section: Introductionmentioning

confidence: 99%

3D DEM-FEM simulation of the flexible metal wheel–soil interaction in low gravity environments

Zhu

Zou

Shen

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

To investigate the driving performance of the flexible metal wheel of the manned lunar rover in a low gravity environment, we established a 3D discrete element method (DEM)-finite element method (FEM) coupling simulation system. The wheel was modeled by FEM and the soil was modeled by DEM. Then, the direct shear tests were performed to verify the validity of the DEM contact parameters. Finally, the driving performance of the flexible metal wheels with different treads under low gravity conditions was studied, and the velocity field of soil particles under the wheels was observed. The results show that the sinkage of the flexible wheel is almost independent of gravity, while the torque and drawbar pull are significantly affected by gravity. Moreover, by comparing the driving performance of the wheel equipped with treads (WT wheel) and without tread (NT wheel), it is found that the tread have great effect on sinkage, torque, and drawbar pull to wheel weight ratio due to the differences in wheel-soil contact area. Also, through the observation of the particle velocity field under the wheel, it is found that the gravity and load also have significant effects on the movement of soil particles. This study provided a reliable method for studies on the interaction between the flexible wheel and soil in low gravity environments.

show abstract

Rigid-flexible coupling modelling and dynamic performance analysis of novel flexible road wheel

Cited by 8 publications

References 34 publications

Mathematical Modeling and Simulation of Suspended Equipment Impact on Car Body Modes

Mathematical Modeling and Simulation of Suspended Equipment Impact on Car Body Modes

A toe-inspired rigid-flexible coupling wheel design method for improving the terrain adaptability of a sewer robot

3D DEM-FEM simulation of the flexible metal wheel–soil interaction in low gravity environments

Contact Info

Product

Resources

About