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- W2139610220 abstract "The starting point of this work is a biologically inspired model of a worm-like locomotion system (WLLS). The mechanical model comprises discrete mass points connected by viscoelastic force actuators. Ground contact is constituted by ideal spikes which act as constraint forces, preventing backward motion for each mass point equipped with them. The distances between each two consecutive mass points are changed by an adaptive controller in order to track a reference trajectory. In combination with the ground contact via spikes, this results in a (undulatory) locomotion of the system.After presenting the aforementioned model and the adaptive controller, the construction of specific reference functions, which result in certain gaits, is described. For this purpose an existing algorithm is used; it allows for defining the number and succession of the active spikes as well as the resulting velocity. In the following gait examination, simulations for worm systems with four mass points are carried out to find a selection of those gaits most suitable in terms of actuator and spikes load. Prior to implementing the automatic gait change, simulations are carried out to determine the criteria for shifting: actuator and spike forces. With those criteria, the choice of the optimal gait depends on both locomotion speed and ground inclination. An approximation of the forces mentioned before enables a formulation of inclination-dependent speed intervals. This leads to a combination of speed adjustment and gait change that enables optimal crawling for predefined limits of actuator or spike forces." @default.
- W2139610220 created "2016-06-24" @default.
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- W2139610220 creator A5054310239 @default.
- W2139610220 date "2012-11-20" @default.
- W2139610220 modified "2023-10-18" @default.
- W2139610220 title "Worm-like robotic systems: Generation, analysis and shift of gaits using adaptive control" @default.
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- W2139610220 doi "https://doi.org/10.5430/air.v2n1p12" @default.
- W2139610220 hasPublicationYear "2012" @default.
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