Abstract
A wind tunnel test on a powered model using high-pressure air generates interference force from pressure piping, acting on a balance. A device was developed to reduce this interference force using the principle of an air bearing. This device utilizes an air joint inserted with triple cylinders with rotation centers eccentric with each other. Upon having verified that the device reduces the interference force with good reproducibility, wind tunnel experiments were carried out that included such test items as {alpha}, {beta} continuous sweep reproducibility, supply air variation reproducibility, equivalent pattern reproducibility, and comparison with the conventional rubber hose system. From the test result, such advantages were discovered that the device has little piping interference force, eliminates a need of piping interference correction, can repeat the {alpha}, {beta} sweep continually, and improves symmetry during a {beta}-sweep. Disadvantages include necessity of a skill foroperation, susceptibility to environmental conditions, and high supply air pressure, but all of them would be possible to be solved. 9 refs., 28 figs., 2 tabs.
Takahashi, H;
Nakaya, T;
Noguchi, M;
Nonaka, O;
Hoshino, H;
[1]
Inoue, T
[2]
- National Aerospace Laboratory, Tokyo (Japan)
- Kawasaki Heavy Industries, Ltd., Tokyo (Japan)
Citation Formats
Takahashi, H, Nakaya, T, Noguchi, M, Nonaka, O, Hoshino, H, and Inoue, T.
Investigation on the effectiveness of the piping interference removal system for STOL aricraft wind tunnel tests; STOL zenki mokei haikan kansho jokyo sochi koka shiken.
Japan: N. p.,
1992.
Web.
Takahashi, H, Nakaya, T, Noguchi, M, Nonaka, O, Hoshino, H, & Inoue, T.
Investigation on the effectiveness of the piping interference removal system for STOL aricraft wind tunnel tests; STOL zenki mokei haikan kansho jokyo sochi koka shiken.
Japan.
Takahashi, H, Nakaya, T, Noguchi, M, Nonaka, O, Hoshino, H, and Inoue, T.
1992.
"Investigation on the effectiveness of the piping interference removal system for STOL aricraft wind tunnel tests; STOL zenki mokei haikan kansho jokyo sochi koka shiken."
Japan.
@misc{etde_10156053,
title = {Investigation on the effectiveness of the piping interference removal system for STOL aricraft wind tunnel tests; STOL zenki mokei haikan kansho jokyo sochi koka shiken}
author = {Takahashi, H, Nakaya, T, Noguchi, M, Nonaka, O, Hoshino, H, and Inoue, T}
abstractNote = {A wind tunnel test on a powered model using high-pressure air generates interference force from pressure piping, acting on a balance. A device was developed to reduce this interference force using the principle of an air bearing. This device utilizes an air joint inserted with triple cylinders with rotation centers eccentric with each other. Upon having verified that the device reduces the interference force with good reproducibility, wind tunnel experiments were carried out that included such test items as {alpha}, {beta} continuous sweep reproducibility, supply air variation reproducibility, equivalent pattern reproducibility, and comparison with the conventional rubber hose system. From the test result, such advantages were discovered that the device has little piping interference force, eliminates a need of piping interference correction, can repeat the {alpha}, {beta} sweep continually, and improves symmetry during a {beta}-sweep. Disadvantages include necessity of a skill foroperation, susceptibility to environmental conditions, and high supply air pressure, but all of them would be possible to be solved. 9 refs., 28 figs., 2 tabs.}
place = {Japan}
year = {1992}
month = {Apr}
}
title = {Investigation on the effectiveness of the piping interference removal system for STOL aricraft wind tunnel tests; STOL zenki mokei haikan kansho jokyo sochi koka shiken}
author = {Takahashi, H, Nakaya, T, Noguchi, M, Nonaka, O, Hoshino, H, and Inoue, T}
abstractNote = {A wind tunnel test on a powered model using high-pressure air generates interference force from pressure piping, acting on a balance. A device was developed to reduce this interference force using the principle of an air bearing. This device utilizes an air joint inserted with triple cylinders with rotation centers eccentric with each other. Upon having verified that the device reduces the interference force with good reproducibility, wind tunnel experiments were carried out that included such test items as {alpha}, {beta} continuous sweep reproducibility, supply air variation reproducibility, equivalent pattern reproducibility, and comparison with the conventional rubber hose system. From the test result, such advantages were discovered that the device has little piping interference force, eliminates a need of piping interference correction, can repeat the {alpha}, {beta} sweep continually, and improves symmetry during a {beta}-sweep. Disadvantages include necessity of a skill foroperation, susceptibility to environmental conditions, and high supply air pressure, but all of them would be possible to be solved. 9 refs., 28 figs., 2 tabs.}
place = {Japan}
year = {1992}
month = {Apr}
}