Structural Design and Jet-Cavitation Mechanism of Bioinspired Snapping-Claw Apparatus

Yin, Hang; Zhang, Chen; Xu, Yan; Heng, Jinlong

doi:10.1007/s42417-021-00397-5

Cited by 5 publications

(3 citation statements)

References 14 publications

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“…Note that there are several types of claws for pistol shrimps [74]. From the view point of mechanical devices that are bioinspired by pistol shrimp, a pulsed water jet generator was proposed [75,76], and a ring vortex cavitation around the pulsed water jet from a device was realized by mimicking the claws of pistol shrimp [77]. A bioinspired plasma generator [78] and an Cavitation peening using an ultrasonic vibratory horn has also been proposed [54][55][56][57][58] (see Figure 1c); however, the aggressive intensity of ultrasonic cavitation is particularly sensitive to the standoff distance between the horn and target surface.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Development of a Cavitation Generator Mimicking Pistol Shrimp

Soyama,

Tanaka,

Takiguchi

et al. 2024

Biomimetics

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Pistol shrimp generate cavitation bubbles. Cavitation impacts due to bubble collapses are harmful phenomena, as they cause severe damage to hydraulic machinery such as pumps and valves. However, cavitation impacts can be utilized for mechanical surface treatment to improve the fatigue strength of metallic materials, which is called “cavitation peening”. Through conventional cavitation peening, cavitation is generated by a submerged water jet, i.e., a cavitating jet or a pulsed laser. The fatigue strength of magnesium alloy when treated by the pulsed laser is larger than that of the jet. In order to drastically increase the processing efficiency of cavitation peening, the mechanism of pistol shrimp (specifically when used to create a cavitation bubble), i.e., Alpheus randalli, was quantitatively investigated. It was found that a pulsed water jet generates a cavitation bubble when a shrimp snaps its claws. Furthermore, two types of cavitation generators were developed, namely, one that uses a pulsed laser and one that uses a piezo actuator, and this was achieved by mimicking a pistol shrimp. The generation of cavitation bubbles was demonstrated by using both types of cavitation generators: the pulsed laser and the piezo actuator.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development of a Cavitation Generator Mimicking Pistol Shrimp

Soyama,

Tanaka,

Takiguchi

et al. 2024

Biomimetics

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show abstract

“…From the view point of mechanical devices that are bioinspired by pistol shrimp, a pulsed water jet generator was proposed [74,75], and a ring vortex cavitation around the pulsed water jet from a device was realized by mimicing the claws of pistol shrimp [76]. A bioinspired plasma generator [77] and an impulsive motion generator [78] were also developed.…”

mentioning

confidence: 99%

Development of Cavitation Generator Mimicing Pistol Shrimp

Soyama,

Tanaka,

Takiguchi

et al. 2023

Preprint

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Pistol shrimps generate cavitation bubbles. Cavitation impacts due to bubble collapses are harmful phenomena, as they cause severe damage to hydraulic machineries, such as pumps and valves. However, cavitation impacts can be utilized for mechanical surface treatment to improve the fatigue strength of metallic materials, which is called “cavitation peening”. Through conventional cavitation peening, a cavitation is generated by a submerged water jet, i.e., a cavitating jet or a pulsed laser. The fatigue strength of magnesium alloy when treated by the pulsed laser is larger than that of the jet. In order to drastically increase the processing efficiency of cavitation peening, the mechanism of pistol shrimp (specifically when used to create a cavitation bubble), i.e., alpheus randalli, was quantitatively investigated. It was found that a pulsed water jet generates a cavitation bubble when a shrimp snaps its claws. Furthermore, two types of cavitation generators were developed, namely, one that uses a pulsed laser and one that uses a piezo actuator, and this was achieved by mimicing a pistol shrimp.

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Effect of printing speed and part geometry on the self-deformation behaviors of 4D printed shape memory PLA using FDM

Chen

et al. 2022

Journal of Manufacturing Processes

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Structural Design and Jet-Cavitation Mechanism of Bioinspired Snapping-Claw Apparatus

Cited by 5 publications

References 14 publications

Development of a Cavitation Generator Mimicking Pistol Shrimp

Development of a Cavitation Generator Mimicking Pistol Shrimp

Development of Cavitation Generator Mimicing Pistol Shrimp

Effect of printing speed and part geometry on the self-deformation behaviors of 4D printed shape memory PLA using FDM

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