Measurement of Holding Force and Transportation Force Acting on Tabular Object in Near-Field Acoustic Levitation

Aono, Kohei; Aoyagi, Manabu

doi:10.1109/tuffc.2022.3147603

Cited by 10 publications

(4 citation statements)

References 37 publications

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“…In 2019, Ran Gabai et al [159], proposed a near-field acoustic levitation-based noncontact stage for item handling and positioning that created an acoustic field with improved pressure able to hold the object without any contact. A very recent study in 2022 by [160] proposed a measurement method of the holding force acting on a levitated object which has a large displacement from the vibration source during near-field acoustic levitation.…”

Section: B Near-field Methodsmentioning

confidence: 99%

A Non-Contact Manipulation for Robotic Applications: A Review on Acoustic Levitation

2022

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Robots play an important role all over the world in the industrial field in terms of dealing with various materials, performing duties quickly and high accuracy as well as in the pharmaceutical/chemical field since robots can handle some issues better than human. Robotic manipulation is the term used to describe how robots deal with many objects. This article reviews the contact and non-contact manipulation with their most common robotic applications and focusing on the non-contact manipulation since it can do specific tasks which contact manipulation cannot do. Reviewing of the robotic non-contact manipulation which include the metal-based robotic manipulation such as magnetic and electrostatic levitation and the non-metal-based robotic manipulation method such as aerodynamic and acoustic levitation have been made in this article. The main core of this article is acoustic levitation which considered one of the most important levitation and manipulation method due to the recent advancements that made it proper to deal with any kind of materials. Here, we review the renowned three methods of acoustic levitation that already using in robotic non-contact manipulation which are standing wave, near-field and single-beam acoustic levitation. Then, we present a performance characteristic of the reviewed methods and the summary of controlling strategies, followed by conclusion and future recommendations for acoustic levitation methods as a non-contact manipulation.

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Section: B Near-field Methodsmentioning

confidence: 99%

A Non-Contact Manipulation for Robotic Applications: A Review on Acoustic Levitation

2022

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“…NFAL uses suspension objects as reflectors and generates a much greater levitation force than the SWAL, which allows it to support and transport much heavier objects. [8][9][10][11] Present research on NFAL has mainly focused on the stability of the levitated object, 5,12) the improvement of the system's load-carrying capacity, 13,14) and the design of the transportation system. 15,16) All these NFAL systems 5,[12][13][14][15][16] use air as the lubrication fluid and are called in-air NFAL.…”

Section: Introductionmentioning

confidence: 99%

“…[8][9][10][11] Present research on NFAL has mainly focused on the stability of the levitated object, 5,12) the improvement of the system's load-carrying capacity, 13,14) and the design of the transportation system. 15,16) All these NFAL systems 5,[12][13][14][15][16] use air as the lubrication fluid and are called in-air NFAL. However, to prevent the levitated object from being oxidized by air or contaminated by airborne impurities, 17,18) some NFAL systems choose water as the lubrication fluid and are named underwater NFAL.…”

Section: Introductionmentioning

confidence: 99%

“…Based on the experimental parameters of the underwater NFAL system and its operating conditions, 17) a group of parameter values assumed to approximately evaluate the squeeze Reynolds number, is given below: ρ 0 (20 °C) = 998 kg m −3 , μ 0 (20 °C) = 1.002 mPa•s, h 0 = 100 μm, ξ 0 = 2 μm, and f = 17 kHz. The mean film thickness is usually much larger than the maximum vibration amplitude, 12,14,15) indicating that  x h 0 0 and » h h . 0 Therefore, the squeeze Reynolds number is calculated to be…”

Section: Introductionmentioning

confidence: 99%

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Theoretical investigation of the levitation force generated by underwater squeeze action

Liu

Zhang

Chen

2023

Jpn. J. Appl. Phys.

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Previous research has experimentally demonstrated the feasibility of near-field acoustic levitation (NFAL) in water. This paper proposes an analytical model of underwater NFAL to study its levitation performance. At first, the fluid’s compressibility must be determined because it is significant to the model’s accuracy. Therefore, the Reynolds equations describing the film pressure distribution are deduced based on fluid film lubrication theory for incompressible and compressible fluids. The calculated squeeze film forces for each case are compared with experimental observations from the literature to confirm the fluid’s compressibility. The comparison results show that the theoretical numerical results under the compressible condition are closer than the incompressible condition to the experimental data. Further numerical results show that increasing the water temperature decreases the mean squeeze film force when the water temperature is higher than 20°C. In addition, the mean squeeze film force is increased by increasing the vibration amplitude.

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Stability analysis of near-field acoustic levitation considering misalignment and inclination

Liu,

Sun,

Zhao

et al. 2024

International Journal of Mechanical Sciences

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Measurement of Holding Force and Transportation Force Acting on Tabular Object in Near-Field Acoustic Levitation

Cited by 10 publications

References 37 publications

A Non-Contact Manipulation for Robotic Applications: A Review on Acoustic Levitation

A Non-Contact Manipulation for Robotic Applications: A Review on Acoustic Levitation

Theoretical investigation of the levitation force generated by underwater squeeze action

Stability analysis of near-field acoustic levitation considering misalignment and inclination

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