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71. 发明专利

JP2000055776A MEASURING METHOD FOR BENDING RIGIDITY OF STRUCTURE 失效
公开(公告)号：JP2000055776A
公开(公告)日：2000-02-25
申请号：JP22291698
申请日：1998-08-06
申请人： KOBE STEEL LTD
发明人： YAMAGIWA ICHIRO , UTSUNO HIDEO
IPC分类号： G01M5/00
摘要： PROBLEM TO BE SOLVED: To obtain a measuring method in which the bending rigidity of an already constructed structure is measured simply without being influenced by a boundary condition which expresses the support state of the structure. SOLUTION: A measuring method for the bending rigidity EI of a structure 10 uses a relationship in which the propagation speed of a bending vibration propagated in the structure 10 is decided according to the bending rigidity EI of the structure 10. In the measuring method, a shock is given to the structure 10, traveling waves of a bending vibration due to its shock are detected by a vibration sensor 21 and a vibration sensor 22 which are arranged on the structure 10, they are analyzed in accordance with frequency, and the phase difference between the two sensors 21, 22 is obtained for every frequency. The phase difference correspondings to the time in which the bending vibration is propagated between the two sensors 21, 22, i.e., to the propagation speed of the bending vibration. Then, the bending rigidity EI of the structure 10 is calculated on the basis of a set relationship which is established between the phase difference obtained in this manner and the bending rigidity EI of the structure 10.

72. 发明专利

JPH10317896A TUNNEL BUFFER CONSTRUCTION 失效
公开(公告)号：JPH10317896A
公开(公告)日：1998-12-02
申请号：JP13179297
申请日：1997-05-22
申请人： KOBE STEEL LTD
发明人： ODA TAKESHI , MITSUDA MASAHIKO , TANAKA TOSHIMITSU , YAMAGIWA ICHIRO , HAYASHI NOBUTERU
IPC分类号： E21D9/14 , E21F1/00
摘要： PROBLEM TO BE SOLVED: To improve performance by forming an opening section, in which opening width is decreased continuously from the front side of a lining body to the rear side, to the lining body not formed to a section only of the cover body. SOLUTION: Opening sections 3 are formed to both side faces of the lining body 2 of a method of tunnel buffer construction 1 connected to a tunnel T. The opening sections 3 are formed continuously in the longitudinal direction of a lining 2 with the exception of the whole circumferential section 2a of the front end A of the lining body 2 and the whole circumferential section 2b of a rear end B. The opening width (h) of the opening sections 3 is reduced continuously by a curve determined by the next function f(x) from the front side to the rear side. That is, F(x)=A/(Bx+C) holds when the longitudinal direction from the front section of the lining body 2 to a rear section is represented by (x) and opening width in the longitudinal direction (x) by f(x). Accordingly, since a pressure gradient can be made smoothly without forming a stepped section while pressure waves proportionally rises from the front side of a method of buffer construction to the rear side, the pressure gradient can be lowered, the micro-pressure waves in the outlet of the tunnel can be reduced, and the length of the method of buffer construction can be shortened.

73. 发明专利

JPH09228784A BUFFERING WORK FOR TUNNEL 失效
公开(公告)号：JPH09228784A
公开(公告)日：1997-09-02
申请号：JP6018996
申请日：1996-02-21
申请人： KOBE STEEL LTD , TOKAI RYOKAKU TETSUDO KK
发明人： TANAKA TOSHIMITSU , YAMAGIWA ICHIRO , ODA TAKESHI , HAYASHI NOBUTERU , NAGURA TAKAO , OISHI MINEO , MIYAMOTO MASAAKI
IPC分类号： E21D9/14
摘要： PROBLEM TO BE SOLVED: To reduce generation of sharp increase part of pressure wave front surface and reduce the length of buffering work by specifying the distance from the top of tunnel to the upper side of cover, and also specifying the ratio between the sectional area of the cover and the sectional area of tunnel. SOLUTION: A cover 3 having the larger sectional area than the sectional area of a tunnel 2 is arranged at an entrance of the tunnel 2, and an opening 4 is formed on a side surface of the cover 3, in a buffering work 5. In the work 5, the distance H from the top 2c of the tunnel 2 to the upper side 3b of the cover 3 is made close to 15/100 or less of equivalent radius R of sectional shape of the tunnel 2. The sectional shape of the cover 3 is a rectangular section including sides 3a on both sides of the tunnel 2 and the upper side 3b of the tunnel 2. The ratio between the sectional area of the cover 3 and the sectional area of the tunnel 2 is set to be more than 1.45 but less than 1.55. The length of the cover 3 is seven times or more of the equivalent radius R of the tunnel 2 so as to cope with the condition of train speed of 350km/hr. or more.

74. 发明专利

JPH09101289A METHOD FOR MEASURING FLEXURAL RIGIDITY AND TENSION OF TENSIONED CABLE 失效
公开(公告)号：JPH09101289A
公开(公告)日：1997-04-15
申请号：JP20074896
申请日：1996-07-30
申请人： KOBE STEEL LTD
发明人： YAMAGIWA ICHIRO , UTSUNO HIDEO , SUGII KENICHI
IPC分类号： G01L1/10 , G01L5/04 , G01M13/00 , G01N3/34 , G01N29/00 , G01N29/12
摘要： PROBLEM TO BE SOLVED: To provide a method by which the flexural rigidity of a cable can be measured easily with high accuracy and the tension of the cable can be calculated without conducting any preliminary experiment in laying the cable even when the length of the cable reaches hundreds of meters. SOLUTION: The flexural rigidity 5 of a tensioned cable 1 is found by giving an impact to the cable 1 and detecting 2a the vibration of an arbitrary part of the cable 1, and then, performing frequency analyses 3 and 4 on the detected vibration and finding the rigidity 5 from a plurality of characteristic frequencies existing in a frequency area where the influence of the flexural rigidity become dominant of the analyzed results. Or, the flexural rigidity of the cable 1 is calculated from a plurality of number-of-vibration data by performing frequency analysis for finding a transfer function from the ratio between the vibrations detected at two points on the cable 1 and reading the number of vibrations indicating the maximum or minimum value of an obtained frequency response function and, at the same time, selecting the plurality of number-of-vibration data of an area where the influence of the flexural rigidity becomes dominant.

75. 发明专利

JP2006349191A DOUBLE WALL DAMPING STRUCTURE 审中-公开
公开(公告)号：JP2006349191A
公开(公告)日：2006-12-28
申请号：JP2006263568
申请日：2006-09-27
申请人： KOBE STEEL LTD
发明人： UEDA HIROKI , YAMAGIWA ICHIRO , SUGIMOTO AKIO , TANAKA TOSHIMITSU , HASHIMOTO SEIICHI , OKA TAKASHI
IPC分类号： F16F15/02
摘要： PROBLEM TO BE SOLVED: To provide a double wall damping structure having a constitution hardly transmitting vibration and capable of further improving damping effect when a damping material is attached. SOLUTION: This double wall damping structure is composed of two face plates 1, 2 in parallel with each other, and ribs 3, 4 molded integrally with the face plates 1, 2 to connect the face plates 1, 2 and extending in the same direction. The whole or most part of a cross-section constituted by adjacent two ribs and face plates is trapezoidal on the cross-section vertical to the extending direction of the ribs 3, 4. This double wall damping structure is composed of, for example, aluminum or aluminum alloy extrusion material or an integrated molding of resin or composite material mainly composed of the resin. COPYRIGHT: (C)2007,JPO&INPIT

76. 发明专利

JPH11271155A MEASURING METHOD FOR TENSION AND FLEXURAL RIGIDITY OF STRUCTURE 失效
公开(公告)号：JPH11271155A
公开(公告)日：1999-10-05
申请号：JP7470898
申请日：1998-03-23
申请人： KOBE STEEL LTD
发明人： YAMAGIWA ICHIRO , UTSUNO HIDEO , SUGII KENICHI
IPC分类号： G01L5/10 , G01L5/04 , G01M7/08
摘要： PROBLEM TO BE SOLVED: To obtain a measuring method in which a tension and a flexural rigidity applied to a structure can be measured simultaneously with good accuracy even when the setting operation of a boundary condition has a large influence on a computed result. SOLUTION: A shock is given to a structure on which a tension T acts. The vibration of the structure is detected so as to analyze a frequency. Thus, a plurality of natural frequencies fi are obtained. A boundary condition which expresses that the structure is supported by a rotating spring having a spring constant K is uses for a relationship which is established between the natural frequencies fi obtained in this manner and their order (i) and the tension T and a flexural rigidity EI. The tension T, the flexural rigidity EI and the spring constant K are solved.

77. 发明专利

JPH113082A ACOUSTIC MATERIAL MADE OF METAL 失效
公开(公告)号：JPH113082A
公开(公告)日：1999-01-06
申请号：JP17282297
申请日：1997-06-12
申请人： KOBE STEEL LTD , NIPPON TOKUSHU TORYO CO LTD
发明人： SASAKI TOSHIHIKO , YAMAGIWA ICHIRO , SUGIMOTO AKIO , ITANO NAOFUMI , ODAJIMA MASAKATSU , KABASHIMA HAYAO
IPC分类号： E01F8/00 , D04H1/4234 , E01F8/02 , E04B1/86 , F01N1/24 , G10K11/162 , D04H1/42
摘要： PROBLEM TO BE SOLVED: To obtain an acoustic material whose structure is sample and whose sound absorptivity is high by compressingly forming metallic fibers curled in specific length directions while using binder resin. SOLUTION: This acoustic material is constituted by compressingly forming metallic fibers whose widths are 0.2-5.0 mm and whose thicknesses are 0.02-0.1 mm and whose lengths are not longer than 200 mm and which are curled in length directions while using binder resin. Since metallic fibers curled in length directions, for example, cut materials of aluminum or the like are used as metallic fibers for this acoustic material, when the metallic fibers are compressingly formed by making resin binders, twining to the metallic fibers with each other become safisfactory and although the acoustic material is porous and light in weight, the acoustic material having high strength is obtained. Then, since cross-sectional shapes of metallic fibers to be used for this material are made flat (the ratio between a width (w) and a thickness (t) is w/t>=2), gaps are easily made between metallic fibers when the fibers are compressingly formed and an adjustment of apparent density becomes easy.

78. 发明专利

JPH0948079A DAMPING SHAPE AND STRUCTURE FOR TRANSPORT PLANE 失效
公开(公告)号：JPH0948079A
公开(公告)日：1997-02-18
申请号：JP19291096
申请日：1996-07-02
申请人： KOBE STEEL LTD
发明人： TANAKA TOSHIMITSU , SUGIMOTO AKIO , IWAI KENJI , YAMAGIWA ICHIRO , YANAI MAMORU , FUJISAWA KAZUHISA , SASAKI TOSHIHIKO , UEKI ISAMU , SANUKI REIJI , MAEKAWA NORIFUMI , HATAYAMA TADASHI
IPC分类号： E04B1/86 , B29C65/02 , B29C65/48 , B29L31/60 , B32B3/12 , B32B3/28 , B32B7/02 , B32B15/08 , B60R13/08 , B61D17/04 , B61D17/10 , B61D17/18 , E04B1/98 , G10K11/16
摘要： PROBLEM TO BE SOLVED: To obtain damping structures including truss aluminum extruded shapes and π-type aluminum extruded shapes which excel in damping characteristics, by damping the hollow part of a shape with a damping resin. SOLUTION: Many rectangular damping resin plates 10 are placed in series on a plastic film 11 which is longer than a damping shape 1 and pasted with an adhesive to form a continuum 12. The width of the rectangle depends on the width of a rib 4 or face plates 2, 3. However, the appropriate length of the rectangular damping resin plate 10 is about 1m. Since a resin plate longer than that produces a clearance in the interface with the interior of the hollow part due to warp, etc., and involves air, it should be cut to a length enough to obtain a flat rectangle. The continuum 12 is inserted into the hollow part 7 with the damping resin 10 faced down. The damping resins 10 can be inserted while being butted together.

79. 发明专利

JPH0862090A DEVICE FOR INSPECTING LAMINATION STRUCTURE BODY 失效
公开(公告)号：JPH0862090A
公开(公告)日：1996-03-08
申请号：JP21652294
申请日：1994-08-17
申请人： KOBE STEEL LTD
发明人： TANAKA TOSHIMITSU , YAMAGIWA ICHIRO
IPC分类号： G01M7/02
摘要： PURPOSE: To reduce the number of inspection targets to the number of core regions and to reduce inspection time by inspecting the joint state of a joint part indirectly based on the vibration state of each core region. CONSTITUTION: The joint part of a honeycomb panel 4, where a core region surrounded by the joint part with a core block is formed uniformly on a surface plate, is inspected by joining the assembly of a core block and the surface plate. The title item is provided with a speaker 1 for vibrating the surface plate with an arbitrary frequency, a speedometer 5 for successively scanning a displacement speed at a specific region of each code region of the surface plate with a specific scanning speed, and a correlator 6 for detecting the vibration state of each core region based on the displacement speed and the scanning speed.

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