https://safirsoft.com Engineering can keep the secret of the rapid acceleration of the shrimp attack

The engineered lock design allows the animals to store and release energy with a single incoming movement
.22 caliber bullet. This makes this creature to be studied by scientists eager to learn more about related biomechanics. Among other things, this could lead to small robots capable of making fast and powerful movements. A team of Harvard researchers has developed a new biomechanical model of strong attachment to shrimp and built a small robot to mimic movement, according to a recent research paper in the Proceedings of the National Academy of Sciences (PNAS). ).

"We are fascinated by the many fascinating behaviors we see in nature, especially when they are achieved with what man-made devices can achieve or surpass," says Robert Wood, senior author on robotics at Harvard University. Paulson School of Engineering and Applied Sciences (SEAS). For example, the attack speed of mantis shrimp is the result of a complex mechanism. By building a mechanistic model of a large association with shrimp, we can study these mechanisms in unprecedented detail. 'Unique Flight' The ultimate goal of this initiative is to create a group of small, interconnected robots capable of continuous flight - an important technical challenge given the insects' size, altering the various forces in the game. In 2019, Wood announced the acquisition of the lightest insect-sized robot that achieved stable, unobstructed flight - an improved version called the RoboBee X-Wing. (Kenny Brewer, writing in Nature, is described as a "strength in system design and engineering." 450 species are known, but they can be broadly divided into two types: those that strike their prey with spear-like appendages ("spearheads") and those that feed on themselves. .tentacles ("attractive appendages"). They poke up in the water and create a shock wave that can act as a subsequent attack, dazzling and sometimes killing prey. Sometimes, the blow can cause a glow, so that bubbles in the cavity produce A short light when they collapse.

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According to a study conducted in 2018, it seems that the secret of this powerful blow is not from the huge muscles, but from the anatomical structure filled with springy shrimp arms, resembling a bow and arrow or a mousetrap. Shrimp have the saddle-like structure of the arm, causing it to bend and storing potential energy that is released by rotating the claw of the putter.It is essentially a latch-like mechanism (technically, adhesive spring activation, or LaMSA), which acts as a latch by small structures in muscle tendons called solid.

Read more when the wassa is Important: Mint shrimp puffs in the air

This is well understood, and there are many other small organisms that can make very fast movements through the sticking mechanism. Create similar: frog legs and tongue chameleons, for example, the lower jaws of cattle ants and the explosion of plant seeds. But biologists who have studied these mechanisms for years have noticed something unusual in mantle prawns - a millisecond delay between the opening and knocking process. “There is an ultra-fast camera, there is a time lag between the time of the solid firing and the additional fire,” said Nok Sung (Patrick) Hyun, a postdoctoral researcher at SEAS. “The mouse seemed to have activated the mouse trap, but instead of immediately dragging, there was a significant delay before hitting. There is clearly another mechanism holding the attachment in place, but no one has been able to tell how the mechanism works.” The other understood analytically. . Src =" picsbody / 2108 / 9848-1.jpg "alt =" https://safirsoft.com Engineering can keep the rapid acceleration of shrimp attack secret "srcset=" https://cdn.arstechnica.net/wp-content / uploads / 2021/08 / mantis1.jpg 2x "> Zoom in / Overview of biologically inspired physical models that generate high accelerations. E. Steinhardt et al., 2021

For their robot version of the Shrimp Mantis accessory, they developed a unique production process inspired by pop-up books. Wood Group is building RoboBee, which involves cutting designs from flat panels , laying layers of them and attaching the layers with glue, then folding them into desired shapes. A small type of "artificial muscle" can be made using piezoelectric actuators, while thin plastic hinges create excellent joints for rotational motion. Then they conducted several experiments in air and water with different loading conditions. They were able to identify four important steps and confirmed that it was the geometry of the mechanism that produced the rapid acceleration, after the initial opening by the hardeners. It still hits 26 meters per second in the air, which is equivalent to a car going from zero to 58 mph in just four milliseconds. The real yuan is not very good, but it is still impressive. .jpg "alt=" https://safirsoft.com Engineering can keep the secret of fast shrimp attack "srcset=" https://cdn.arstechnica.net/wp-content/uploads/2021/08/ mantis3 .jpg 2x" Zoom/Check out a 1.5-megapixel robot.Experiments in water-based experiments have shown what's called the “extra mass effect.” “In fluid mechanics, when you’re moving really fast, you’re actually pushing a heavier mass,” he told Ars. “In the future, they hope to combine their physical and analytical modeling strategies to develop further familiarity with other species, such as the basic mechanisms of jaw ants or jumping frogs. "You can make a lot of discoveries in different fields," says Duke University biologist Sheila Patek. Building a physical model and developing a mathematical model has led us to review the mechanics of the shrimp mint effect and, more broadly, to discover how living organisms and artificial systems can use engineering to control the intense flow of energy during ultra-fast and frequent use. Gestures.

DOI: PNAS, 2021. 10.1073/pnas.2026833118 (about DOIs).

Robot simulates the firm grip of a mantis shrimp. Video from the College of Engineering and Applied Sciences, John H. Paulson University Harvard.

Engineering can keep the secret of the rapid acceleration of the shrimp attack
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