Purpose The purpose of this paper is to propose a new propeller-type climbing robot called EJBot for various types structures that include significant obstacles, besides inspection industrial vessels made materials, including non-ferromagnetic material. includes capturing images important spots and measuring the wall thickness. Design/methodology/approach design mainly consists two coaxial upturned propellers mounted on mobile with four standard wheels. A hybrid actuation system propeller...

This paper presents a new kind of climbing robots called EJBot, which has not been restricted to climb certain surface materials or terrains. EJBot is inspired by propeller-based aviation systems, however, its adhesion principle opposite flight concept. Thanks the hybrid actuation system embedded in this robot gives good and stable adhesion. consists propeller thrust forces wheel torques actuated simultaneously generate proper force. It similar car ramp, it needs both weight wheels' torques....

The dual-reciprocating drill (DRD) is a low-mass alternative to traditional drilling techniques biologically inspired by the wood wasp ovipositor, which used into in order lay its eggs. DRD reciprocates two halves lined with backwards-facing teeth, enabling it generate traction forces that reduce required overhead penetration force. While previous research has focused on experimental testing of drill's operational and design parameters, numerical simulation are being developed allow rapid...

Most robotic applications demand lightweight and high-speed manipulators for considerably reducing the consumed power achieving high production rates. The two ways seeking such arms are; applying advanced control algorithms and/or performing an extensive optimization of arm structure itself. Therefore, topology technique is proposed here obtaining optimal robot design from both viewpoints. Results some researches, that have been previously accomplished by size shape optimization, were...

This paper is proposing and designing a novel propeller-type climbing robot for exploring the interiors of industrial vessels enables human outside it to implement required regular inspection tasks efficiently. There are two main adhesion systems in literature: magnetic air suction systems. The system climbs surfaces made ferromagnetic materials only, while can handle neither irregular due possible seal damage nor cylindrical surfaces. Opposite previous robots, proposed here climb navigate...

Biomedical applications, such as artificial implants, are very significant for the disabled due to their usage in orthopedics. Nevertheless, available materials applications have insufficient mechanical and tribological properties. The current study investigated properties of a biomedical metallic material, magnesium (Mg), after incorporating titanium dioxide nanofibers (TiO2) with different loading fractions. TiO2 were synthesized using electrospinning technique. ball-milling technique was...

As massive scientific information is trapped inside the geologic formation of planetary bodies, objectives most exploration missions mainly involve sampling, in-situ testing and analyzing cutting's for seeking any sign primitive life or resources. This can be accomplished by subsurface specific drilling techniques which entail challenges that are apparently more complex than on earth. One these low-gravity should compensated over-head mass system. excessive represents a burden during...

This work focuses on proposing and designing a new climbing robot to explore the interiors of industrial vessels enables human outside implement required regular inspection tasks efficiently. There are two main adhesion systems in literature: magnetic air suction systems. The system climbs surfaces made ferromagnetic materials only, while cannot handle irregular due possible seals damage. Opposite previous robots, proposed here can climb navigate from different besides handling during...

This article proposes a new approach called revolutionary superposition layout (RSL) for obtaining optimum designs of nonconcurrent multiloads structures in general, and connecting rod (CR) particular. Since the compression tension resulted from combustion exhaust strokes are loads, importance this arises up. RSL depends on combining optimum-design layouts obtained different individual load cases into one resultant design. final design efficiently sustains all loads applied to it. presents...

Topology optimization approach is considered among the most interesting fields of structural optimization.In this paper topology for compliance minimization using method moving asymptotes MMA presented.This as a general and flexible method, where it can handle any kind objective function number constraints.The effect changing lower upper on process convergence studied seeking demanded with more stability minimum time possible.Topology different models such cantilever beam simply supported...

Abstract Key features for space exploration equipment, and in particular drills sampling mechanisms, are low weight, small size, energy efficiency. These characteristics substantially required not only reducing the spaceship flight cost, but also extending time on extraterrestrial bodies. This article experimentally investigates feasibility of a novel drill bioinspired by wood-wasp sand-fish lizard as an integrated robotic solution rover tasks. A new penetration depth 820 mm terms...

There are growing demands in the robot industry for light structures order to increase speed of motion and thus productivity. Size shape optimization carried out previously achieve minimum traveling time arm taking into consideration its flexibility. In this work, topology is introduced obtaining optimum from both structure control viewpoints. Method Moving Asymptotes used as technique, because it can handle arbitrary number constrains considered be a general flexible method. A comparison...

The rapid vehicles on the motorways (with speed ranging from 100 to 160 Km/h) cause excessive wind turbulence, which could be utilized drive vertical axis turbines (VAWT), in turn, can generate sufficient electrical power.VAWT is compact and represents an innovative solution for narrow areas despite horizontal that require massive radial space construction costs.By using array of both sides highways, a significant amount electricity will generated street lighting, electric car charging, many...