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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts
the foot has to touch the ground for at least half of the cycle for a two/four leg mechanism [1] or respectively, a third of the cycle for a three/six leg mechanism; minimized moving mass; vertical center of mass always inside the base of support [1] the speed of each leg or group of legs should be separately controllable for steering [6]
The motion of the rod is termed elliptical motion. The semi-axes a and b of the ellipses have lengths equal to the distances from the point on the rod to each of the two pivots. The straight lines described by the pivots are special cases of an ellipse, where the length of one axis is twice the distance between the pivots and that of the other ...
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts
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Elipse Software is a Brazilian industrial automation software producer whose main activities are designing and selling software for HMI/SCADA projects and interfaces for many types of applications.
The distance from a point, P, on the ellipse to a focus is always proportional to the distance to a vertical line, D, called the directrix. The constant of proportionality is the eccentricity, e. The eccentricity is always between 0 and 1. At zero, the ellispe becomes a circle, at 1 the ellipse becomes a parabola. Greater than one, it is a ...
Various forms of actuation and force transmission can be achieved through these inspired designs, including rotation, lifting, and even damping effects. [8] The passive nature of the hydraulic and elastic extensor mechanisms employed have found use in orthotics projects aimed at assisting joints weakened by age or disease.