Search Results 1-20 of 361

  • ACCURACY EVALUATION TEST TO DETECT PEELING SOUND INSIDE RUBBER PLACED WITH STEELS PLATE USING AE METHOD  [in Japanese]

    KAWASAKI Yuma , TANAKA Akihiro , YAMADA Yuji , UEDA Kensuke , IZUNO Kazuyuki

    … Furthermore, a test to confirm the detection accuracy of elastic waves propagating inside a rubber test piece was conducted and reported.</p><p> In this paper, steel plates were placed above and below a steel rod inserted into the rubber test piece that simulated the structure of the rubber bearings. … The effect of steel plates on the detection accuracy of the elastic waves propagating inside rubber due to peeling of the steel rod was confirmed. …

    Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 76(2), 229-238, 2020

    J-STAGE 

  • Asymptotic behavior of eigenfrequencies of a thin elastic rod with non-uniform cross-section

    Jimbo Shuichi , Rodríguez Mulet Albert

    … <p>We study the eigenvalue problem of the elliptic operator which arises in the linearized model of the periodic oscillations of a homogeneous and isotropic elastic body. … Particularly, we deal with a thin rod with non-uniform connected cross-section in several cases of boundary conditions. …

    Journal of the Mathematical Society of Japan 72(1), 119-154, 2020

    J-STAGE 

  • Forced Oscillation of an Inverted Elastic Pendulum  [in Japanese]

    牧原 義一 , 國仲 寛人 , Makihara Yoshikazu , kuninaka Hiroto

    … Nonlinear forced oscillation of an inverted elastic pendulum, which has a massive bob on the top of a vertically standing stainless thin rod, is investigated by measuring the frequency response curve of the pendulum. … The pendulum is driven by reciprocating the bottom of the rod periodically in a direction defined as y-axis.The pendulum shows hard characteristics whose amplitude for the elliptical orbit of the massive bob increases with increasing driving frequency. …

    三重大学教育学部研究紀要 自然科学・人文科学・社会科学・教育科学・教育実践 = Bulletin of the Faculty of Education, Mie University. Natural Science, Humanities, Social Science, Education, Educational Practice (70), 31-38, 2019-01-04

    IR 

  • Evaluation and Manufacturing of Unidirectional CF/PA6 rod using Pultrusion Molding  [in Japanese]

    ANDO Naoto , TANABE Daiki , NISHIYABU Kazuaki

    … For manufacturing rivet made of CFRTP, it is necessary to mold CFRTP rod. … To mold CFRTP rod, pultrusion molding which has extremely productive and environmental performance is the most suitable method in CFRTP molding methods. … The highest number of fiber volume fraction, maximum bending strength and bend elastic constant of molded CFRTP rod in this study is 48 vol%, 284 MPa and 36 GPa.</p> …

    The Proceedings of Mechanical Engineering Congress, Japan 2019(0), J04407P, 2019

    J-STAGE 

  • Elastic Modulus and HAp Crystal Orientation of the Rod- and Plate-like Trabeculae in Bovine Femurs  [in Japanese]

    TAKAHASHI Yuta , YAMADA Satoshi , TODOH Masahiro , TADANO Shigeru

    The Proceedings of the JSME Conference on Frontiers in Bioengineering 2019.30(0), 2B22, 2019

    J-STAGE 

  • Identification of Whole Elastic Property of an Elastic Rod along Its Body Trunk  [in Japanese]

    ENDO Yusuke , NAKAGAWA Naohiro , GUNJI Megu , MOCHIYAMA Hiromi

    … <p>In this paper, we propose an algorithm for identifying the elastic property of an elastic rod along its body trunk. …

    The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2019(0), 1P2-F04, 2019

    J-STAGE 

  • VERIFICATION OF STRENGTH LIMIT ANALYSIS MODEL FOR THIMBLE TUBE WITH MATERIAL PLASTICITY UNDER BENDING MOMENT AND AXIAL COMPRESSION FORCE

    Koike Hisashi , Mori Masaji , Fujiwara Daisuke , Shimomura Takashi , Ogita Toshiyuki

    … Another role of the thimble tube is to guide a rod cluster control assembly (RCCA) for insertion during the reactor operation. … Mitsubishi has confirmed by the elastic stress analysis that the stress of the thimble tube has been lower than the limit value requested for the seismic event. … The ASME code also describes the limit analysis which is available when the predicted stress is beyond elastic region of the material. …

    The Proceedings of the International Conference on Nuclear Engineering (ICONE) 2019.27(0), 1115, 2019

    J-STAGE 

  • Buckling Behavior of Long Strips under Various End Conditions in Quasi-Static and Dynamic Loading-Velocity Region  [in Japanese]

    HASHIMOTO Hiroaki , MIMURA Koji , RIKU Isamu , UMEDA Tsutomu

    … We chose A7075 aluminum alloy as the target material since it has a very high yield strength (it avoids plastic buckling) and relatively low elastic modulus (resulting in low Euler's buckling load). … In the low-velocity range below 0.1 m/s, a dynamic buckling load was measured using a rod-type load cell connected to the piston rod of the hydraulic loading device. …

    Journal of the Society of Materials Science, Japan 68(5), 429-435, 2019

    J-STAGE 

  • Crack patterns of elastic thin sheets teared by an elastic rod  [in Japanese]

    Ishii Hirofumi , Wada Hirofumi

    Meeting Abstracts of the Physical Society of Japan 73.2(0), 2601-2601, 2018

    J-STAGE 

  • Acceleration of shape optimization analysis using degeneration by singular value decomposition  [in Japanese]

    Tango Shuichi , Azegami Hideyuki

    … The feasibility of the proposed method is illustrated by testing the numerical scheme to a three dimensional linear elastic body of connecting rod type.</p> …

    The Proceedings of The Computational Mechanics Conference 2018.31(0), 313, 2018

    J-STAGE 

  • HEAT TRANSFER CHARACTERESTICS OF A LINING BOREHOLE GROUND HEAT EXCHANGER  [in Japanese]

    TERASAKI Hiroaki , SUZUKI Yosuke , FUKUHARA Teruyuki , KUSAMA Masahiro , TANIGUCHI Haruki , TANAKA Masato

    … It is seen from the indoor tests that the warp-knitted glass fiber is strong enough to bear the water pressure to inflate during construction and has sufficient elastic property to fit the roughness of the inside borehole. … A 100 m long LBHE could inflate by water pressure and the inflated volume of the LBHE attained more than 70% of the borehole volume calculated by a diameter of casing rod. …

    Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 74(7), III_383-III_390, 2018

    J-STAGE 

  • Development of a steering mirror realizing high-response two-axis tilt and off-plane positioning  [in Japanese]

    Akeno Kouki , Han Dong , Shinshi Tadahiko , Kodeki Kazuhide , Fukushima Kazuhiko

    <p>観測衛星に搭載する高速ステアリングミラーは,広範囲・高応答な2軸チルト駆動と,焦点補正のための面外駆動が要求される.本研究では,4つのボイスコイルモータ(VCM),弾性ロッド,その把持機構からなるステアリンスミラーを開発した.ロッド把持時でのVCMへのプッシュプル通電により,チルト方向のバンド幅1000 Hz,分解能5μrad,非把持時のVCMへの同相通電による面外動作では,分解 …

    Proceedings of JSPE Semestrial Meeting 2018A(0), 449-450, 2018

    J-STAGE 

  • Development of Octopus Robot with High Object Manipulability and Mobility:Motions Using Small Moment Arm with Multiple Degrees of Freedom Leg  [in Japanese]

    YAMAGUCHI Yuya , MIZUUCHI Ikuo

    … <p>An octopus has multiple degrees of freedom and elastic legs that can skillfully perform various actions. … We also carried out experiments about rod climbing, ladder climbing, brachiation, and caterpillar type movement using the robot. …

    The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2018(0), 1P1-G11, 2018

    J-STAGE 

  • Anomalous Flow Properties of Several Types of Rod-Like Micelle Surfactant Solutions Passing through Small Apertures  [in Japanese]

    Ushida Akiomi , Ogata Naoki , Sato Taisuke , Narumi Takatsune , Hasegawa Tomiichi

    … <p>We previously investigated anomalous phenomena in pressure drops of (drag-reducing) rod-like micelle surfactant solutions passing small apertures. … Compared with water results, pressure drops of rod-like micelle surfactant solutions rose steeply at any Reynolds number. …

    Nihon Reoroji Gakkaishi 46(2), 99-106, 2018

    J-STAGE 

  • ACCURACY EVALUATION TEST TO DETECT PEELING SOUND INSIDE RUBBER BY AE METHOD  [in Japanese]

    KAWASAKI Yuma , TANAKA Akihiro , TERAMURA Naoto , UEDA Kensuke , IZUNO Kazuyuki

    … However, because elastic waves propagate in rubber with low velocity , there still remains some issues with the detection accuracy of AE due to those elastic waves.<br> In this study, steel rods were inserted into natural rubber specimen and then a confirmation experiment of the detection accuracy of a peeling sound was conducted. … Regarding the distance between the tip of the steel rod and the rubber surface, seven patterns were prepared. …

    Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 74(2), 241-250, 2018

    J-STAGE 

  • A Super-responsive Tip-Tilt Motion Control of a Mirror Driven by Electromagnetic Force and Supported by an Elastic Rod Made of Super Elastic Alloy  [in Japanese]

    AKENO Kouki , SHIMIZU Daisuke , SHINSHI Tadahiko , KODEKI Kazuhide , FUKUSHIMA Kazuhiko

    … This paper presents a tip-tilt motion controlled FSM having an 80 mm diameter mirror driven by four compact voice coil motors and supported by an elastic rod made of super elastic alloy called <i>GUMMETAL</i><sup>®</sup>. … To evaluate the effect of the elastic rod and rubber dampers on the static and dynamic performance, tip-tilt range and open-loop frequency responses of the FSM were measured with or without dampers. …

    Journal of the Japan Society for Precision Engineering 84(5), 443-448, 2018

    J-STAGE 

  • Lattice Defect Formation Behavior of Cold-drawn Pearlitic Steel Fractured under Elastic and Plastic Region in the Presence of Hydrogen  [in Japanese]

    Konno Ryosuke , Manabe Toshiyuki , Hirakami Daisuke , Takai Kenichi

    … <p>Factors causing hydrogen embrittlement of cold-drawn pearlitic steel fractured in plastic/elastic region have been investigated from the viewpoint of lattice defects. … The amount of tracer hydrogen which corresponds to the amount of lattice defects in the specimens subjected to plastic strain or elastic stress was measured using a thermal desorption analysis. …

    Tetsu-to-Hagane 104(1), 36-45, 2018

    J-STAGE 

  • Issues Concerning Isometric Deformations of Planar Regions to Curved Surfaces

    Yi-chao Chen , Roger Fosdick , Eliot Fried

    … In example (ii), the curvature along a generator of the cone is not constant and the calculation of the bending energy is, indeed, compromised by this oversight.The historically important dimensional reductions that Sadowsky and Wunderlich introduced to study the bending energy and the equilibrium configurations of isometrically deformed rectangular strips have gained classical notoriety within the subject of elastic ribbons and Möbius bands. …

    Journal of Elasticity, 1-42, 2017-12-08

    IR 

  • Importance and Effectiveness of Representing the Shapes of Cosserat Rods and Framed Curves as Paths in the Special Euclidean Algebra

    Giulio G. Giusteri , Eliot Fried

    … We discuss how the shape of a special Cosserat rod can be represented as a path in the special Euclidean algebra. … The representation of the shape as a path in the special Euclidean algebra is intrinsic to the description of the mechanical properties of a rod, since it is given directly in terms of the strain fields that stimulate the elastic response of special Cosserat rods. …

    Journal of Elasticity 132(1), 43-65, 2017-09-05

    IR 

  • STRUCTURAL BEHAVIOR OF DAMAGE POSITION GUARANTEED RC BEAMS WITH BRB CONNECTIONS  [in Japanese]

    MAIDA Yusuke , KISHIKI Shoichi , QU Zhe , MAEGAWA Toshio , HAMADA Makoto , SAKATA Hiroyasu

    … The results show that the strength ratio, β<sub>h</sub>, should be no less than 1.14 for the BRB connection to remain essentially elastic. …

    Journal of Structural and Construction Engineering (Transactions of AIJ) (737), 1091-1101, 2017-07

    J-STAGE  AIJ 

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