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 7 of 7 for “"Stiffness Modulation"”.
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Architectures of soft pneumatic actuators for wearable human assistive applications
… which is shown to directionally modulate its stiffness. The second architecture is a nested arrangement of FREEs, which is shown to provide 70% more actuation stroke than a single actuator. The thesis presents an analytical framework, first to accurately capture the behavior of a contracting …
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Hybrid Soft-Rigid Robots: Investigating Series and Parallel Configurations
… is a series assembly of soft-rigid modules with stiffness modulation to form a soft-rigid robotic arm, and the second system is a parallel assembly of rigid bones casted into silicone to form a passive soft-rigid flipper for a robotic sea turtle. We first introduce a new class of soft-rigid …
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The role of flexibility on propulsive performance of flapping fins
… and is believed that the fish modulates its fin stiffness to optimize the propulsive performance. Inspired by the stiffness modulation of fish fins, the objective of this research is to predict and evaluate the effect of flexibility on propulsive performance of flapping fins. The stiffness of the …
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At the Intersection of Bistability and Elastic Instability: Switching and Locking Structures using Asymmetric Carbon Fiber Composites
… length upon heating with increased longitudinal stiffness. Thus, stiffness modulation and morphing ability is a crucial aspect of switchable systems. In our interest, Asymmetric Carbon-Fibre Reinforced Polymer (CFRP) laminates, have shown bistability, i.e., they have two stable equilibria or …
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Integrating Smart Materials and Adhesion Mechanics for Soft Gripping Mechanisms
… studies have shown that the inclusion of a stiffness tunable core in a cylindrical PDMS pillar can enhance the dry adhesion strength of the pillar to an opposing rigid surface significantly. Here, I investigate three different approaches to enhance the dry adhesion of soft gripping …
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Layer-by-Layer Nanoparticles for Targeted Delivery and Treatment of Ovarian Cancer
… of this thesis explores the role of nanoparticle stiffness in overcoming physiological barriers to drug delivery. LbL NP architecture uniquely allows for the decoupling of targeting chemistry and particle stiffness effects. Soft-LbL NPs were found to preferentially accumulate in solid tumors and …