Modelling the effect of prosthetic feet and shoes on the heel-ground contact force in amputee gait

2004 ◽  
Vol 218 (3) ◽  
pp. 173-182 ◽  
Author(s):  
G K Klute ◽  
J S Berge
Keyword(s):  
Contact Force ◽  
Ground Contact ◽  
Prosthetic Feet ◽  
Amputee Gait

A methodology for studying the effects of various types of prosthetic feet on the biomechanics of trans-femoral amputee gait

1999 ◽  
Vol 32 (9) ◽  
pp. 877-889 ◽  
Author(s):  
M.L. van der Linden ◽  
S.E. Solomonidis ◽  
W.D. Spence ◽  
Ning Li ◽  
J.P. Paul
Keyword(s):  
Prosthetic Feet ◽  
Amputee Gait

Partial Contact Force Controllability in Active Wheeled Vehicles

1998 ◽  
Author(s):  
B. J. Choi ◽  
S. V. Sreenivasan
Keyword(s):  
Contact Force ◽  
Geometric Approach ◽  
Contact Forces ◽  
Ground Contact ◽  
Distribution Problem ◽  
Passive Components ◽  
Partial Contact ◽  
Interesting Insight ◽  
Wheeled Vehicles ◽  
Insight Into

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.

Roof-to-ground contact force during a vehicle rollover

2009 ◽  
Vol 4 (1) ◽  
pp. 1 ◽  
Author(s):  
Sreekanta Das ◽  
Sudip Bhattacharjee
Keyword(s):  
Contact Force ◽  
Ground Contact ◽  
Vehicle Rollover

Effects of Non-Linear Wheel Suspension Bushing on Vehicle Response

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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