Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Actuation energy"”.
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Balancing actuation energy and computing energy in low-power motion planning
… class of motion planning problems in which the energy consumed by the computer while planning a path can be as large as the energy consumed by the actuators during the execution of the path. As a result, minimizing energy requires minimizing both actuation energy and computing energy since …
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Understand The Structure-Water-Responsive Relationship by Engineering Silk Materials
… have demonstrated the capability to exert higher actuation energy than conventional actuators and artificial muscles. As a result, WR materials have recently gained attention as potential high-energy actuating components for engineering applications. Despite the growing interest in this emerging …
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The Effect of Nanoconfined Liquid Properties on the Water-Responsive Behavior of Bacterial Cell Walls
… the soil, driven by daily RH changes. The WR actuation of some biomaterials is extremely powerful, for example <em>Bacillus subtilis</em> cell walls display record-high actuation energy and power densities of 72 MJ m<sup>-3</sup> and 9.1 MW m<sup>-3</sup>, surpassing those of all existing …
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Electrochemical to mechanical energy conversion
… Lithium intercalation of graphite can achieve actuation energy densities of 6700 kJ m-3 with strains up to 6.7%. Intercalation oxides provide strains on the order of a couple percent, but allow for increased bandwidth. Using a conventional stacked electrode design, a cell consisting of lithium …
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A metabolically efficient leg brace
… and endurance, they are limited by their energy demanding actuators. In response to these two extremes, an energy efficient locomotion assist device was developed from the basis of lossless gait models that did not require external power, and augmented locomotion by harvesting the inherent …
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Elastomeric microsystems fabricated using transfer printing
… of unusual elastomeric microsystems for sensing, actuation, energy harvesting and robotic micromanipulation. Conventionally, microsystems are constructed by rigid materials such as semiconductors, metals, and dielectric materials with a set of well-established processing methods such as thin film …
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Biomimetic Water-Responsive Structures: From Fundamental Mechanisms to Evaporation Energy Harvesting Applications
… relative humidity (RH) and convert evaporation energy (chemical potential of water) to mechanical energy. For example, the scales of pinecones open and release pine seeds when the environment is dry. Prior research has shown that the spores of Bacillus (<em>B</em>.) <em>subtilis</em> exhibit a …
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Simultaneous Energy Harvesting and Vibration Control via Piezoelectric Materials
… a novel concept and design of simultaneous energy harvesting and vibration control on the same host structure. The motivating application is a multifunctional composite sandwich wing spar for a small Unmanned Aerial Vehicle (UAV) with the goal of providing self-contained gust alleviation. …
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Investigation of Polymer-Filled Honeycomb Composites with Applications as Variable Stiffness Morphing Aircraft Structures
… to support this shape morphing an minimize actuation energy. This remains an open challenge, but many possible solutions have been found in smart materials, namely shape memory alloys and polymers. Of these, shape memory polymers have received more attention for wing skins due to their low …