Development of Water Leisure Sports Shoes with High Ground Contact Force, Reinforced Wear Resistance and Water Drainag

Abstract This paper presents a geometric approach for solving the force distribution problem in active wheeled vehicles (AWVs) moving on even and uneven surfaces. In general, AWVs do not possess omni-directional mobility and they do not have sufficient actuators to directly control all the components of the wheel-ground contact forces. This situation requires the separation of the contact force vectors into active and passive components. An optimal contact force allocation algorithm can then be developed for these systems. The concepts introduced in this article are demonstrated via simple planar examples and by using an active off-road vehicle with slip-free motion capability. Off-road kinematic/static simulations of AWVs and force controlled legged vehicles (FCLVs) are presented and a comparison of these results provides interesting insight into partial force controllability characteristics of AWVs.

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Roof-to-ground contact force during a vehicle rollover

International Journal of Vehicle Safety ◽

10.1504/ijvs.2009.026970 ◽

2009 ◽

Vol 4 (1) ◽

pp. 1 ◽

Cited By ~ 1

Author(s):

Sreekanta Das ◽

Sudip Bhattacharjee

Keyword(s):

Contact Force ◽

Ground Contact ◽

Vehicle Rollover

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Effects of Non-Linear Wheel Suspension Bushing on Vehicle Response

Volume 6: 1st Biennial International Conference on Dynamics for Design; 14th International Conference on Advanced Vehicle Technologies ◽

10.1115/detc2012-71224 ◽

2012 ◽

Author(s):

Jenny Jerrelind ◽

Ines Lopez Arteaga ◽

Lars Drugge ◽

Leif Kari

Keyword(s):

Linear Model ◽

Contact Force ◽

Ground Contact ◽

High Frequencies ◽

Quarter Car Model ◽

Car Model ◽

Non Linear ◽

Simulation Results ◽

Quarter Car ◽

Space Ratio

This work presents an analysis of the effects of non-linear characteristics of a top mount bushing in the wheel suspension of a vehicle when evaluating vehicle characteristics such as comfort and handling. The investigation is performed by comparing simulation results from a quarter car model when using a non-linear bushing model and an approximated linear bushing model. It is revealed when analysing the results that there are differences in the response when comparing measures such as sprung mass acceleration, rattle space ratio and tyre-ground contact force. The conclusion is that the more detailed bushing model mainly affects the acceleration levels especially at high frequencies where the linear model underestimates the acceleration. The rattle space ratio and tyre-ground contact force are also affected but not to the same extent.

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Application of TEM to Deformation, Wear, and Fracture of Ceramics

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100052377 ◽

1974 ◽

Vol 32 ◽

pp. 472-473

Author(s):

B. J. Hockey

Keyword(s):

Wear Resistance ◽

High Temperature ◽

Mechanical Behavior ◽

Brittle Materials ◽

High Temperature Strength ◽

Wide Range ◽

Corrosive Environments ◽

Further Development

Ceramics, such as Al2O3 and SiC have numerous current and potential uses in applications where high temperature strength, hardness, and wear resistance are required often in corrosive environments. These materials are, however, highly anisotropic and brittle, so that their mechanical behavior is often unpredictable. The further development of these materials will require a better understanding of the basic mechanisms controlling deformation, wear, and fracture.The purpose of this talk is to describe applications of TEM to the study of the deformation, wear, and fracture of Al2O3. Similar studies are currently being conducted on SiC and the techniques involved should be applicable to a wide range of hard, brittle materials.

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