Tribot is an origami robot (robogami) that has two modes of locomotion, jumping and crawling, that can be selected simultaneously upon meeting an obstacle. Designed in an origami-folding pattern combined with spring shape memory alloy (SMA) actuators, Tribot maintains the architecture rather simple by selectively and strategically activating different sets of actuators and sequences to switch b...

In this article, a novel compact reconfigurable antenna based on substrate integrated waveguide (SIW) technology is introduced. The geometry of the proposed antennas is symmetric with respect to the horizontal center line. The electrical shape of the antenna is composed of double H-plane SIW based horn antennas and radio frequency micro electro mechanical system (RF-MEMS) actuators. The RF-MEMS...

In this study, we used shape memory alloys as actuators to build a biomorphic robot which can imitate the motion of an earthworm. The robot can be used to explore in a narrow space. Therefore we chose shape memory alloys as actuators. Because of the small deformation of a wire shape memory alloy, spiral shape memory alloys are selected and installed both on the X axis and Y axis (each axis havi...

The paper exposes some of the results obtained in a major research project related to design, development, and experimental testing morphing wing demonstrator, with main focus on development automatic control actuation system, its integration into developed gain extension laminar flow over upper surface when it was morphed based this system. multidisciplinary one, being realized collaboration b...

An efficient design of control strategies for smart structures is based on a reliable simulation of the structural behavior. Due to its general applicability, the finite element method has become the most widely used simulation tool, and it is thus desirable to implement constitutive models for actuators into such a frame. The first part of the paper presents a finite element formulation for a ...

A novel Shape Memory Alloy (SMA) actuator consisting of a number of thin NiTi bers woven in a counter rotating helical pattern around supporting disks is rst described. This structure can be viewed as a parallel mechanism used to accomplish a highly e cient transformation between force and displacement. The actuator overcomes the main mechanical drawback of shape memory alloys, that being limit...

Biomimetic underwater microrobots are of great interest for underwater monitoring operations, such as pollution detection and video mapping in restricted underwater environments. Generally speaking, compact structure, multi‐functionality, flexibility and precise positioning are considered incompatible characteristics for underwater microrobots. Nevertheless, we have designed...

A novel Shape Memory Alloy (SMA) actuator consisting of several thin NiTi bers woven in a counter rotating helical pattern around supporting disks is rst described. This structure accomplishes a highly e cient transformation between force and displacement overcoming the main mechanical drawback of shape memory alloys, that being limited strain. Time domain open loop experiments were then conduc...

Shape memory alloys (SMAs) impart a potential application in a wide range in microand nano-industrial world. Classic properties such as free recovery or pseudo-elasticity still needed further specifications in smart materials or micro-actuators applications. Nowadays, a primary goal is achieved that these materials offer a price-competitive advantage compared to other functional materials desig...

We have developed a biomimetic robot based on the American lobster. The robot is designed to achieve the performance advantages of the animal model by adopting biomechanical features and neurobiological control principles. Three types of controllers are described. The first is a state machine based on the connectivity and dynamics of the lobster central pattern generator (CPG). The state machin...