Dynamic calibration of magnetic suspension and balance system for sting-free measurement in wind tunnel tests

Lee, Dong‐Kyu; Lee, Ji Min; Han, Jae‐Hung; Kawamura, Yoshiyuki

doi:10.1007/s12206-013-0513-0

Cited by 13 publications

(2 citation statements)

References 10 publications

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“…It should be noted that mount-less experiments have been attempted using the magnetic suspension and balance system (MSBS) (Higuchi 2005;Takagi, Sawada and Obayashi 2016). In fact, an MSBS Wind Tunnel study has been previously conducted for archery (Miyazaki et al 2012); it is also compatible with multicomponent force sensing (Lee, Lee, Han and Kawamura 2013). Therefore, the adoption of this new experimental setup should be mostly compatible with the traditional wind tunnel test.…”

Section: Future Researchmentioning

confidence: 99%

scientific development of badminton shuttlecocks

Woo,

Alam,

Kootsookos

2024

sustain. sport. sci. j.

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This paper reviews published works of the field of badminton research within the past 50 years, focusing primarily on the design and flight dynamics of shuttlecocks to identify any knowledge gap. With regards to shuttlecock research, various methodologies involving empirical and theoretical studies including: wind tunnel testing, simulation, shuttlecock design and prototyping, have been presented. To improve the readability, studies are discussed collectively based on the nature of the investigation according to whether empirical and/or combinations of theoretical approaches have been implemented. Upon reviewing the current body of literature, it is believed that there is a lack of emphasis in correlating the structural and aerodynamics aspects of the badminton shuttlecock. Further investigation into the structural mechanics of the bird feathers used for natural feather shuttlecocks may serve as an inspiration in the development of subsequent synthetic shuttlecock designs.

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Section: Future Researchmentioning

confidence: 99%

scientific development of badminton shuttlecocks

Woo,

Alam,

Kootsookos

2024

sustain. sport. sci. j.

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“…Galileo (left), Stardust (center), Orion (right) All shown with MSBS magnetic cores, dimensions as tested, in inches clear that a MSBS for a large transonic wind tunnel would be prohibitively expensive. Over the last few years, active technology development programs have been pursued at Tohoku University in Japan, where three systems of varying size are operational [9,10], and in Korea [11]. In addition, at least one system has been in routine use for aerodynamic measurements at Oxford University, in the U.K. [12].…”

Section: Figure 1 -Examples Of Planetary Entry Capsule Geometriesmentioning

confidence: 99%

Preliminary Aerodynamic Measurements from a Magnetic Suspension and Balance System in a Low-Speed Wind Tunnel

Schoenenberger

Cox

Schott

et al. 2018

2018 Applied Aerodynamics Conference

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An existing Magnetic Suspension and Balance System (MSBS) has been restored to operation in a small (octagonal test section, 6-inches across flats) low-speed wind tunnel as the first phase of a project to develop new dynamic test capabilities for planetary entry capsules at supersonic speeds. The MSBS and associated wind tunnel were originally designed and built at MIT and were subsequently relocated to NASA Langley Research Center. NASA ceased operations of the system in the late 1990s and it was transferred to Old Dominion University where it had been mothballed until the present work started in 2015. All-new position sensor electronics, electromagnet power supplies, digital controller, and other hardware have been developed, leading to more efficient and reliable operation. Important features of the new hardware will be briefly described. Wind tunnel testing has commenced, focusing first on static aerodynamics of re-entry capsule shapes. Some preliminary results will be reviewed, including comparison to reference data. The proposed extension to dynamic stability testing, using a variety of free-to-pitch approaches will be described. Finally, the preliminary design of the all-new Phase II (supersonic) system will be briefly outlined. NomenclatureBx,y,z Magnetic flux density in the x, y and z directions (Tesla) Bxx Gradient of flux density in the axial (tunnel flow) direction d Capsule diameter CD Drag coefficient, Fx/(qs) Fx Force in the x direction ""⃗ Magnetization vector (A/m) Mx,y,z Components of the magnetization vector along the x, y and z axes q Dynamic pressure Red Reynolds number based on model diameter: density*velocity*diameter/(kinematic viscosity) S Reference area (area of circle with diameter of wind tunnel model) "⃗ Torque vector Tx,y,z Torque components about the x, y and z axes x,y,z Tunnel axes: +x = upstream, +y = right when looking upstream, +z = down

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Comparative Analysis of Combustion Noise, Performance and Emission of LTC Diesel Engine with Multiple Injections

Biswas

Mukhopadhyay

2021

Lecture Notes in Mechanical Engineering

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Dynamic calibration of magnetic suspension and balance system for sting-free measurement in wind tunnel tests

Cited by 13 publications

References 10 publications

scientific development of badminton shuttlecocks

scientific development of badminton shuttlecocks

Preliminary Aerodynamic Measurements from a Magnetic Suspension and Balance System in a Low-Speed Wind Tunnel

Comparative Analysis of Combustion Noise, Performance and Emission of LTC Diesel Engine with Multiple Injections

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