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Dynamic train-track interaction at high vehicle speeds--Modelling of wheelset dynamics and wheel rotation

PT Torstensson, JCO Nielsen… - Journal of Sound and Vibration, 2011 - Elsevier
... When the system is excited at a frequency where two different wheelset mode shapes, due to
the wheel rotation, have coinciding resonance frequencies, significant differences are found in
the contact forces calculated with the rotating and non-rotating wheelset models. ...
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Stability of the Two-Wheeled Inverted Pendulum Vehicle Moved by Human Pedaling

C Nakagawa, K Nakano, Y Suda… - Journal of System Design …, 2011 - J-STAGE
... We proposed the vehicle that has two modes; the bicycle mode and the parallel two-wheel
mode as a PMV [3] [4]. Figure 1 show the mock-up of the proposed PMV, (a) is the bicycle
mode and (b) is the parallel two-wheel mode, respectively. ...
Related articles - All 3 versions

RT-Mover: a rough terrain mobile robot with a simple leg–wheel hybrid mechanism

S Nakajima - The International Journal of Robotics Research, 2011 - ijr.sagepub.com
... A strength of this robot is that it realizes both a leg mode and a wheel mode in a simple mechanism. ...
Some typical cases of rough terrain for wheel mode and leg mode are selected, and the robot's
ability of locomotion is assessed through simulations and experiments. ...
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Analysis of the constraint relation between ground and self-adaptive mobile mechanism of a transformable wheel-track robot

ZQ Li, SG Ma, B Li, MH Wang… - SCIENCE CHINA …, 2011 - Springer
... Driven only by one servomotor, each TWT unit can efficiently select between track
mode and wheel mode for optimal locomotion, autonomously switching locomotion
mode and track configuration with changes in the terrain. ...
All 2 versions

Skate propulsion mechanisms

A Brunner - US Patent 7,866,672, 2011 - Google Patents
... to movements in the user's foot; and a drive mechanism, coupling the shoe plate, the base plate,
and the drive wheel, that propels the drive wheel when the user's foot is moved in a first direction
and that permits the drivel wheel to operate in a free wheel mode when the user's ...
Related articles - All 4 versions

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