The biomechanically inspired machine that is discussed in this paper refers to the antagonistic muscles pairs, which belongs to the Skeletal Muscles and are normally arranged in opposition so that as one group of muscles contract another group relaxes or lengthens.

Machines and Robots Driven by Muscle Like Acting NiTi Alloys

Relly Victoria V. Petrescu, Raffaella Aversa, Antonio Apicella and Florian Ion T. Petrescu | Romanian Society of Robotics Committee

The research shows a bioinspired approach to be adopted to design of systems based on Shape Memory Alloys (SMAs), a class of Smart Materials that has in common with muscles the capability to react to an impulse (thermal for SMAs) with a contraction. The biomechanically inspired machine that is discussed in the paper refers to the antagonistic muscles pairs, which belongs to the Skeletal Muscles and are normally arranged in opposition so that as one group of muscles contract another group relaxes or lengthens.

The study proposes a model, a solution not only to design a specific application, but also to provide an approach to be used for a wide range of adaptive applications (switchable windows, smart shadow systems, parking and urban shelters, etc.), where the shape changes in response to different external stimuli. The use of antagonist pairs mechanism provides a solution for better optimized systems based on SMAs where the main and proven advantages are: easier and faster change of shape, lower need of energy for system operation, lower cost for SMA training and no problem of overheating... (Full PDF whitepaper available here)

 

 

The content & opinions in this article are the author’s and do not necessarily represent the views of RoboticsTomorrow

Featured Product

Nion: Next-level time-of-flight

Nion: Next-level time-of-flight

The new Nion 3D camera advances Time-of-Flight (ToF) technology with exceptional resolution, speed, and industrial robustness. Designed for demanding applications such as logistics, warehousing, industrial automation, and robotics, Nion delivers high-resolution depth data with real-time performance for faster, safer, and more flexible operations. At its core is the 1.2-megapixel Time-of-Flight sensor AF0130 from onsemi's Hyperlux ID family, offering up to four times the resolution of conventional VGA-based ToF cameras and significantly higher data density. Active 940-nm laser illumination ensures accurate and stable measurements in low-light conditions, artificial lighting, and even direct sunlight. With an IP67-rated housing, Nion is built for reliable operation in dusty, wet, and thermally challenging industrial environments. A user-friendly API with IDS peak support and compliance with the GigE Vision standard enable fast integration and flexible deployment in high-resolution 3D applications. The Nion 3D camera is now available from IDS Imaging Development Systems.