A mechanical model for deformable and mesh pattern wheel of lunar roving vehicle

Liang, Zhongchao; Wang, Yongfu; Chen, Gang; Gao, Haibo

doi:10.1016/j.asr.2015.10.019

Cited by 8 publications

(8 citation statements)

References 13 publications

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“…The mechanical model of the normal rigid wheel in equations (14) to (16) can be descripted as follows using the forced-slip theory 11 …”

Section: Experiments Of Lrv’s Elastic Wheel With Mesh Surfacementioning

confidence: 99%

“…As shown in Figure 1, F DP , W, and T are balanced with the pressure and the shear stress of the soil beneath the wheel. Therefore, equations (11) to (13) can be obtained without considering the stress distribution…”

Section: Mechanical Model Of Normal Rigid Wheelmentioning

confidence: 99%

“…Considering the stress distribution, the equations for vertical load, tangential traction force, and slip ratio of the normal rigid wheel can be obtained by substituting equations (9) and (10) into equations (11) to (13) as follows 19 W ¼ br…”

Section: Mechanical Model Of Normal Rigid Wheelmentioning

confidence: 99%

“…All LRV designs must take into account the terramechanics involved between the wheels and the lunar soil. 11…”

Section: Introductionmentioning

confidence: 99%

“…All LRV designs must take into account the terramechanics involved between the wheels and the lunar soil. 11 Many researchers focus on the mechanical property of the wheel moving on the soft soil, and five approaches are always used to obtained the mechanical model of the wheel, namely experimental method, 12 empirical method, 13 semi-empirical method, 14,15 finite element method (FEM), 16 and discrete element method (DEM). 17 The semi-empirical method, which is proposed by Bekker and Janosi, 14,15 is mostly used because of the rapid computing speeds and high levels of precision.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical model of a special wheel with metal mesh surface based on modifying stress in manned lunar exploration

Liang

Wang

Chen

2016

Proceedings of the Institution of Mechanical Engineers, Part G:

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A lunar roving vehicle is of great significance in the processing of manned lunar exploration for long-duration space exploration missions. The mechanical model of the lunar roving vehicle’s wheel directly affects the mobility performance. However, the wheel of lunar roving vehicle is a special one with the metal mesh surface, and the soil can penetrate through its surface. In this paper, the mechanical model of a rigid normal wheel is deduced, and four stress correction coefficients are introduced to obtain the mechanical model of the lunar roving vehicle’s wheel. These four stress correction coefficients are identified in several groups of experiment of the lunar roving vehicle’s wheel, and using the functional coefficients can have a high precision for the mechanical model of the lunar roving vehicle’s wheel.

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“…The mechanical model of the normal rigid wheel in equations (14) to (16) can be descripted as follows using the forced-slip theory 11 …”

Section: Experiments Of Lrv’s Elastic Wheel With Mesh Surfacementioning

confidence: 99%

Section: Mechanical Model Of Normal Rigid Wheelmentioning

confidence: 99%

Section: Mechanical Model Of Normal Rigid Wheelmentioning

confidence: 99%

“…All LRV designs must take into account the terramechanics involved between the wheels and the lunar soil. 11…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mechanical model of a special wheel with metal mesh surface based on modifying stress in manned lunar exploration

Liang

Wang

Chen

2016

Proceedings of the Institution of Mechanical Engineers, Part G:

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Unmanned lunar exploration bionic mesh wheel design and performance study

Zhao,

Zhang,

Zhang

et al. 2024

J. Phys.: Conf. Ser.

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Addressing the limitations of traditional lunar exploration mesh wheels in improving the traction performance of unmanned lunar rovers through conventional optimization, this study introduces a novel bionic mesh wheel design inspired by the characteristics of ostrich toes. A comparative wheel design is also developed for control experiments. Discrete element simulations are conducted for both the bionic and comparative wheels. Comparative analysis of their macroscopic simulation data reveals that the bionic wheel outperforms the comparative wheel in terms of traction performance. Furthermore, the bionic wheel exhibits higher traction efficiency and energy savings at lower slip ratios. The feasibility of the proposed design is validated through soil trough experiments, providing evidence for its practical viability in enhancing the traction capabilities of unmanned lunar exploration vehicles.

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Research on the load-bearing performance of new bionic lunar rover wheels

Zhao,

Luo,

et al. 2024

J. Phys.: Conf. Ser.

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In response to the limitations of existing flexible metal wheels in meeting heavy load requirements, a tire/foot integrated bionic wheel with characteristics of being non-inflatable, high load-bearing, and effective vibration damping was designed. A detailed study was carried out to analyze its load-carrying properties under different mechanical working conditions using the finite element method. By simulating different static loading conditions in the vertical direction and considering the balance between wheel elasticity and stiffness, the final plate thickness was determined to be 1 mm. Radial stiffness simulation revealed a radial stiffness of approximately 250 N/mm for the novel bionic lunar rover wheel. According to the above simulation results, the mechanical properties of the wheels of the bionic lunar rover are manufactured and tested, and the test results show that the experimental results are consistent with the simulation results, which verifies the accuracy of the simulation results.

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A mechanical model for deformable and mesh pattern wheel of lunar roving vehicle

Cited by 8 publications

References 13 publications

Mechanical model of a special wheel with metal mesh surface based on modifying stress in manned lunar exploration

Mechanical model of a special wheel with metal mesh surface based on modifying stress in manned lunar exploration

Unmanned lunar exploration bionic mesh wheel design and performance study

Research on the load-bearing performance of new bionic lunar rover wheels

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