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公开(公告)号：KR20180065873A
公开(公告)日：2018-06-18
申请号：KR20170130375
申请日：2017-10-11
Applicant: NAT AEROSPACE LAB
Inventor： WATANABE KOICHI , KAWAI TOSHIHIRO
Abstract: (요약) 치수정밀도가높고, 또한다른외륜어셈블리및 내륜어셈블리와의호환성이확보된분리형복렬앵귤러볼 베어링과그 외륜어셈블리및 내륜어셈블리를제공한다. (과제) 분리형복렬앵귤러볼 베어링(100)은, 외륜(116)과내륜(118)과 2열의볼(120, 122)을구비하고있다. 외륜(116)은 2열의궤도홈(130, 132) 중, 궤도홈(132)이어깨를떨어뜨린카운터보어형상(134)이다. 내륜(118)은 2열의궤도홈(138, 140) 중, 궤도홈(140)이어깨를떨어뜨린카운터보어형상(142)이다. 외륜어셈블리(124)는, 외륜(116)과궤도홈(130)에유지된볼(120)의열을포함하고있다. 내륜어셈블리(126)는, 내륜(118)과궤도홈(140)에유지된볼(122)의열을포함하고있다. 외륜어셈블리(124)의볼(120)은, 호칭치수로이루어지는이상적인형상의기준내륜(144)에대해, 소정의조립폭정밀도가되는치수의것임을특징으로한다.
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2.发明专利
公开(公告)号：JP2003270145A
公开(公告)日：2003-09-25
申请号：JP2002070691
申请日：2002-03-14
Applicant: NAT AEROSPACE LAB
Inventor： ASAI KEISUKE , NISHIDE HIROYUKI
IPC: G01L1/00 , C08F238/02 , C08G61/04 , C09D5/00 , C09D143/00 , C09D149/00 , G01N21/64
Abstract: PROBLEM TO BE SOLVED: To obtain a functional polymer having a pressure-sensitive coloring matter, pressure-sensitive paint and pressure-sensitive element which can prevent deterioration of photoresponse due to aggregation of coloring matter when an organic solvent is evaporated and produce a sensor thin film having uniform characteristics. SOLUTION: Since an oxygen extinction coloring matter group included in a pressure-sensitive coloring matter directly bonds with an organic polymer compound having a trimethylsilyl group by a covalent bond, when the solvent is evaporated, the coloring matter cannot form aggregation because molecules of the coloring matter are fixed with the polymer. Therefore, deterioration of photoresponse due to aggregation of coloring matter when an organic solvent is evaporated can be prevented, which is a problem when applying a conventional mix-type pressure-sensitive paint. By mixing a functional polymer with a solvent to prepare a pressure-sensitive paint, a sensor thin film having uniform characteristics can be formed with spray coating or spread coating. In addition, by dissolving a single component into an adequate solvent, a coating liquid suitable for spray coating and spread coating can be obtained with high repeatability. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2003194337A
公开(公告)日：2003-07-09
申请号：JP2001391789
申请日：2001-12-25
Applicant: NAT AEROSPACE LAB , NIIGATA ENGINEERING CO LTD
Inventor： HAYASHI SHIGERU , YAMADA SHUJI , FUJIWARA HIROSHI
Abstract: PROBLEM TO BE SOLVED: To provide a preliminary fuel-air mixing tube which reduces backfires without degradation in flame holding performance of the mixture in a swirling motion. SOLUTION: A first swirler 2 for counterclockwise turn is provided on the inner side and a second swirler 3 for clockwise turn is provided on the outer side, with a multiple hole fuel nozzle 1 for gaseous or liquid fuel injection positioned at the center. A premixing tube 4 is a roughly hollow truncated cone (or pyramid) having a virtually circular (or rectangular) cross section, with the cross section growing smaller toward the outlet. The ratio of the area of the nozzle 1 at the injection tip to the area of the outlet is 40%. It is so arranged that 0.02 COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2003148247A
公开(公告)日：2003-05-21
申请号：JP2001345769
申请日：2001-11-12
Applicant: NAT AEROSPACE LAB , JAPAN SCIENCE & TECH CORP
Inventor： SHINNO MASAYUKI , KIZARA KATSUHITO , MORO AKIO , FUJITA KAZUHISA , V KMETIK , NAKANO MASAKATSU
Abstract: PROBLEM TO BE SOLVED: To provide a system capable of easily adjusting a laser irradiation position to a propellant without receiving restrictions of a positional relation with a laser source for laser transmission and an installation place of a member in a laser propulsion system provided with advantageous conditions as a thrust generator used in a space structure. SOLUTION: A laser thruster system is composed of a laser oscillator, a flexible optical cable transmitting laser from the laser oscillator to a desired section, and a plasma injection device installed in a desired section. The plasma injection device has a simple structure having no movable part constituted of an injection nozzle having a megaphone shape, a condensing lens provided in a mouth application part of the nozzle, and a solid propellant storage part provided continuously behind the mouth application part. Moreover, the system is mounted in a space structure and a plurality of plasma injection devices are arranged to obtain a large propulsion force, and are arranged in desired sections to control an attitude and position in a desired direction.
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公开(公告)号：JP2003098032A
公开(公告)日：2003-04-03
申请号：JP2001294335
申请日：2001-09-26
Applicant: NAT AEROSPACE LAB
Inventor： SAWADA HIDEO
Abstract: PROBLEM TO BE SOLVED: To provide a wind tunnel model dispensing with mark formation on each model and both calibration tests of a sensor and a magnetic force, by forming a mark to be provided inside the model on another body than a contour body in order to measure the position or the attitude of the model from the outside in a wind tunnel test of a magnetic force support type. SOLUTION: This wind tunnel model 1 for magnetic force support is equipped with the contour body 2 made of a transparent resin and formed to have a thin shell shape, and a mark body 3 installed inside the contour body 2 and having the mark 5 optically detectable through the contour body 2. The mark body 3 can be constituted by putting the mark 5 on the surface of a magnet body 4 performing magnetic interaction with lines of the magnetic force of a magnetic force support balance device provided in the wind tunnel. By constituting the mark body 3 separately from the contour body 2, the mark 5 formation on each model and the calibration tests on the sensor and the magnetic force can be omitted, and the wind tunnel model 1 can be manufactured at low cost and the wind tunnel test can be performed efficiently both in time and in cost system 5 of the light receiving element 6.
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Patent Agency Ranking
公开(公告)号：JP2002303504A
公开(公告)日：2002-10-18
申请号：JP2001105971
申请日：2001-04-04
Applicant: NAT AEROSPACE LAB
Inventor： OGASAWARA TOSHIO , ISHIKAWA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide a small, lightweight, easily-handleable, and high- performance fiber fracture detection type stress measurement sensor. SOLUTION: When continuous fibers of silicon carbide based fiber are subjected to oxidation treatment in the air, an oxide coating is formed on the surface. Heat difference treatment or chemical treatment is applied for regulating the strength distribution of a single filament. A continuous fiber bundle 2 obtained in this way is arranged in one direction, and the continuous fiber bundle is integrated/combined to be molded with a base material such as a fiber reinforcing composite material serving as an insulating material, resin, metal or ceramic. When electrodes are attached to the obtained one directional composite member, a stress measurement sensor 1 is formed. In the silicon carbide based fiber, electric resistance is increased even before its fracture according to an increase in the stress, and in a low stress area, a gentle increase of the electric resistance fluctuation ratio is observed. However, the electric resistance fluctuation ratio is increased greatly once the fracture is started in the fiber.
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公开(公告)号：JP2002257543A
公开(公告)日：2002-09-11
申请号：JP2001059558
申请日：2001-03-05
Applicant: NAT AEROSPACE LAB OF JAPAN MEX
Inventor： SASA SHUICHI , GOMI HIROMI , YAMAMOTO HIROMICHI
IPC: G01C11/06 , G01B11/24 , G01B11/245
Abstract: PROBLEM TO BE SOLVED: To provide a stereo camera system capable of solving the problem in the stereo camera system, ensuring corresponding point search between two images to thereby make deduction of a parallax value accurate, thereby increasing certainty of object shape recognition, and heightening its reproduction accuracy. SOLUTION: In this high precision stereo vision using a continuous frame image, plural pairs of stereo images from different viewpoints of a non- deformable object, and the corresponding point search having high correlation between each pair of images is executed to detect the parallax, and the object shape is operated from the parallax value, and the corresponding point search is executed similarly between each pair, and the object shape is operated, and data are accumulated, and overall operation of accumulated information is executed, to thereby ensure the object shape estimation value.
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公开(公告)号：JP2002220098A
公开(公告)日：2002-08-06
申请号：JP2001018431
申请日：2001-01-26
Applicant: NAT AEROSPACE LAB OF JAPAN MEX , JAPAN SCIENCE & TECH CORP
Inventor： ISOBE TOSHIO , NAKAJIMA ATSUSHI , KIMURA TAKEO , YANAGISAWA TOSHIFUMI
Abstract: PROBLEM TO BE SOLVED: To provide a data processing method that can detect dark debris without interference by background noise in a fixed star tracking mode suitable to a wide-ranging observation. SOLUTION: For an arbitrary point P0 on an image, a point P1 where an object of observation point-imaged at an exposure start time is imaged at an exposure end time is computed, and an image output on a line joining the points P0 to P1 on image data is added. This process is carried out for every point in the image. Before the addition of the image data on the line joining the points P0 to P1, a level of noise is determined, and a high-density image of a celestial body in the image data is replaced with the noise level to erase the star image. The noise level may be determined through the computation of a peak value of a histogram of data on the processed region of the image.
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公开(公告)号：JP2002156978A
公开(公告)日：2002-05-31
申请号：JP2000352910
申请日：2000-11-20
Applicant: NAT AEROSPACE LAB
Inventor： KOBAYASHI HIROSHI
IPC: E04B1/86 , B64D33/02 , F01N1/00 , F01N1/10 , F01N1/16 , F02C7/045 , F02K1/34 , F04D29/66 , G10K11/172 , G10K11/178
Abstract: PROBLEM TO BE SOLVED: To permit the active duct sound absorption of engine noise having a wide frequency range including low-frequency to blade-passing frequency sounds and their higher harmonic components corresponding to variations of airplane engines. SOLUTION: The space 4 between internal and external nacelle walls which is composed of a sound absorption panel part 1 and an active sound control system part 2 and form engine suction and exhaust ducts is regarded as a sound resonance field and a porous sound absorbing material 14 is stuck on the space internal wall surface and used as a sound resonance field; and a movement control reflecting plate 8 in the panel is brought under movement control as a sound absorption reinforcing sound absorption panel part composed of a sound absorption panel surface plate 6 formed by stacking multi-layered metal wire meshes 7 inside a porous plate, a porous sound-absorbing stuck side plate 9, and a back sheet plate 13 by using an adaptive feedforward control method and the optimum duct sound absorption of high level of fan noise, turbine noise, etc., radiated from turbo fan engines is possible correspondingly to operation variations of the engines, i.e., generated noise variations.
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公开(公告)号：JP2002139319A
公开(公告)日：2002-05-17
申请号：JP2000334364
申请日：2000-11-01
Applicant: NAT AEROSPACE LAB , JAPAN SCIENCE & TECH CORP
Inventor： YANAGISAWA TOSHIFUMI , ISOBE TOSHIO , KIMURA TAKEO , NAKAJIMA ATSUSHI
Abstract: PROBLEM TO BE SOLVED: To detect a moving celestial body which is dark to an almost undetectable degree in the observed image of one frame by removing a large quantity of fixed star images which hinder detection. SOLUTION: Images 2-1 to 2-3 of an area, suited to operation of the moving celestial body, are respectively cut off from images 1-1 to 1-3 of plural frames imaged at specific time intervals. Next, a central value image 3-1 is made by taking a central value on the same pixel of the whole cutoff images 2-1 to 2-3. Influence of the fixed stars moving on the cutoff images is removed by taking the central value, and only the moving celestial body can be left. An average value image is made, by using the obtained central value image by plural frame for increasing a detection limit, and the dark moving celestial body undetectable in the observing image of the one frame is extracted.
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