Search Results:　 1-20 of 390

1

Finite Element Analysis of the Cyclic Stress Amplitude of Wheel Bolts for Large Vehicles

FUKUOKA Toshimichi , NOMURA Masataka , KAMIHIRA Takahiro

Tire coming-off accidents from large vehicles are primarily caused by the fatigue failure of wheel bolts, by which the tire wheels are clamped to the hubs of the shaft. In the previous study, stress a …

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C 77(782), 3840-3849, 2011

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2

Elasto-Plastic Stress and Deformation Analyses of the Bearing Surfaces in Hollow Cylindrical Bolted Joints under External Axial Loads

MOROZUMI Yukio , OKUMURA Masahiko , SAWA Toshiyuki , KUWAKI Kengo

An important issue is how to determine a bolt preload of a bolted joint taking an external axial load into account. The following two methods for determining the bolt preload are discussed in the pres …

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 77(783), 1884-1895, 2011

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3

Joining of Cold-Reduced Carbon Steel Sheets by Punching Rivet Method

KINOSHITA Hiroyuki , KAIZU Koichi , KOBAYASHI Taichi , IKEDA Kiyohiko

The impulsive riveting method can join the sheets without drilling as well as disjoin easily the jointed sheets. The joints made by the method have high joint strength and the deformation of the joint …

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C 77(780), 3184-3192, 2011

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4

FEM Stress Analysis and the Evaluation of Sealing Performance of the Box-Shaped Flange Connections with Gaskets Subjected to Internal Pressure (In the Case Where the Wavy Oil-Pan Shaped Flange Connection is Used)

KUROSAWA Ryo , TENMA Kentaro , SAWA Toshiyuki , KOBAYASHI Takashi

… The contact gasket stress distribution in a wavy oil-pan shaped flange connection under the internal pressure was examined using finite element method (FEM) for estimating a location where a principal leakage occurred and for calculating the amount of leakage. …

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 77(780), 1178-1186, 2011

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5

The Reduction of Stress Concentration by Tapering Threads

NODA Nao-Aki , XIAO Yang , KUHARA Masahiro

… In this study, therefore, the bolted joints with tapered threads are analyzed with the finite element method, and stress reduction effect of CD bolts is discussed with varying geometrical conditions. …

Journal of Solid Mechanics and Materials Engineering 5(8), 397-408, 2011

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6

Impulsive Riveting Considering Design for Disassembly

KINOSHITA Hiroyuki , KAIZU Koichi , YOSHIHARA Tomohiro , KAWAMURA Ryusuke , IKEDA Kiyohiko

In this study, a new riveting method considering design for disassembly is developed. The method can join sheets by high-speed blanking without drilling them as well as easily disjoin the joined sheet …

Journal of Environment and Engineering 6(4), 820-829, 2011

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7

Elasto-Plastic FEM Stress Analyses of the Contact Stress Distributions at the Bearing Surfaces and an Estimation of Permanent Sets in Bolted Joints Using Hexagon Bolts with Flange (In the Case of Initial Clamping)

MOROZUMI Yukio , OKUMURA Masahiko , SAWA Toshiyuki , KUWAKI Kengo

The contact stress distributions and permanent sets at the bearing surfaces in bolted joints in initial clamping state are analyzed using an elasto-plastic FEM when hexagon bolts with flange are used. …

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 77(777), 722-725, 2011

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8

Wrinkle Occurring Process of a Paper Fed to a Fixing Roller Unit in Printers and Copiers

YANABE Shigeo , ENDO Makoto , NAKANISHI Masanobu

… The present study treats a paper wrinkle appearing in a fixing roller unit of printers or copiers with electro-photographic process. … An experiment shows that a wrinkle always occurs, when an A4-sized paper is tilted by 3 degrees against a horizontal fixing roller unit without a heating devise and is fed to a roller nip. …

Journal of Environment and Engineering 6(1), 28-40, 2011

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9

Elasto-Plastic FEM Stress Analysis of the Contact Stress Distributions at the Bearing Surfaces and Permanent Set in Bolted Joints Using Hexagon Bolts with Flange : In the Case of Initial Bolt Clamping [in Japanese]

MOROZUMI Yukio , OKUMURA Masahiko , SAWA Toshiyuki , KUWAKI Kengo

The contact stress distributions and permanent sets at the bearing surfaces in bolted joints under initial clamping load are analyzed using an elasto-plastic FEM calculation when hexagon bolts with fl …

Transactions of the Japan Society of Mechanical Engineers. A 76(772), 1603-1611, 2010-12-25

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10

Evaluation of the Stress Amplitude of Wheel Bolts for Large Vehicles by Full-Scale Test(Machine Elements, Design and Manufacturing) [in Japanese]

FUKUOKA Toshimichi , NOMURA Masataka , KAMIHIRA Takahiro , KITANO Kensuke

Tire coming-off accident of large vehicles has developed into a social problem that threatens the safety of civic life. One of the major causes of the accidents was that the tire tightening operation …

Transactions of the Japan Society of Mechanical Engineers. C 76(772), 3768-3775, 2010-12-25

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11

801 Elasto-plastic FEM Stress Analysis of the contact stress distributions at the bearing surfaces and an estimation of permanent set in bolted joints using hexagon bolts with flange : In the case of initial bolt clamping [in Japanese]

MOROZUMI Yukio , OKUMURA Masahiko , SAWA Toshiyuki , KUWAKI Kengo

The contact stress distributions and permanent sets at the bearing surfaces in bolted joints in initial clamping state are analyzed using an elasto-plastic FEM when hexagon bolts with flanges are used …

M&M材料力学カンファレンス 2010, 482-484, 2010-10-09

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12

Riveting Process with Washer for Dissimilar Sheet Metals [in Japanese]

KINOSHITA Hiroyuki , KAIZU Koichi , KAWAMURA Ryusuke , IKEDA Kiyohiko

In this study, to obtain the high joint strength in riveting of dissimilar sheet metals, the riveting process with a washer was applied to joining. First, both the rivet joints between aluminum and st …

Transactions of the Japan Society of Mechanical Engineers. C 76(769), 2348-2350, 2010-09-25

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13

FEM Stress Analysis and the Sealing Performance Evaluation in Box-Shaped Bolted Flange Connections with Non-Asbestos Compressed Sheet Gaskets Subjected to Internal Pressure at Elevated Temperature [in Japanese]

KUROSAWA Ryou , TENMA Kentaro , SAWA Toshiyuki , KOBAYASHI Takashi

… The contact gasket stress distribution in a box-shaped bolted flange connection with non-asbestos compressed sheet gasket subjected to internal pressure at elevated temperature is analyzed taking into account a hysteresis of the gasket behavior using finite element method (FEM) for estimating an amount of leakage from the gasket interfaces in the connection. …

Transactions of the Japan Society of Mechanical Engineers. A 76(769), 1153-1161, 2010-09-25

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14

J0403-2-5 Joining of cold-reduced carbon steel sheets by self-punching riveting [in Japanese]

KINOSHITA Hiroyuki , KAIZU Koichi , Kawamura Ryusuke , IKEDA Kiyohiko

The impulsive riveting method can join the sheets without drilling as well as disjoin easily the jointed sheets. The joints made by the method have high joint strength and the deformation of the joint …

年次大会講演論文集 : JSME annual meeting 2010(6), 367-368, 2010-09-04

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15

S1104-2-5 Effect of the Residual Stress on the Fatigue Strength of a Bolt : Fatigue Characteristics of the Lead-less Bolt with Residual Stress Generated by Preloading [in Japanese]

FURUKAWA Akihiro , HAGIWARA Masaya

A hypothesis was presented concerning the effect of the axial residual stress at the first thread root of a bolt on its fatigue strength. However, this has not yet been verified since the residual str …

年次大会講演論文集 : JSME annual meeting 2010(4), 141-142, 2010-09-04

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16

S1104-1-2 A Screw Tightening Method with Ultrasonic Vibration in the Radius Direction of a Bolt Head or a Nut [in Japanese]

OKADA Manabu , TSUCHIDA Tomonari , NAKATSUKA Satoshi

It is known by past researches on the loosening of a screw that rotation of loosen will arise if the radius direction vibration is given to a bolt head or the bearing surface of a nut. On the other ha …

年次大会講演論文集 : JSME annual meeting 2010(4), 123-124, 2010-09-04

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17

S1108-4-5 Development of a New Testing Machine for Torque/Clamp Force Testing for Threaded Fasteners in Accordance with ISO 16047 : Optimization of the Testing Machine Structure for Boosting the Accuracy [in Japanese]

OKUMURA Shota , HAGIWARA Masaya

It is one of the important issues for structural safety to control the clamp force of bolted joints. However, there is no tightening testing apparatus commercially available to evaluate the tightening …

年次大会講演論文集 : JSME annual meeting 2010(4), 59-60, 2010-09-04

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18

Growth of Taylor coefficients over complex homogeneous spaces

Driver Bruce K. , Gross Leonard , Saloff-Coste Laurent

… Fixing a positive time, we may form the Hilbert space of holomorphic functions on the group which are square integrable with respect to this heat kernel measure. … In previous work we have shown that, for each positive time, the Taylor map, which sends a holomorphic function to its set of Taylor coefficients at the identity element, is a unitary map from the previous Hilbert space of square integrable holomorphic functions onto a Hilbert space contained in the dual of the universal enveloping algebra. …

Tohoku mathematical journal. Second series 62(3), 427-474, 2010-09
19

Development of Tightening Apparatus with Multiple Shafts and Torque Control Mechanism for Wheel Bolts of Large Vehicles [in Japanese]

FUKUOKA Toshimichi , NOMURA Masataka , KAMIHIRA Takahiro

One of the major causes of the tire coming-off accident of large vehicles is that wheel bolts, which clamp inner and outer wheels to the hub, are not necessarily tightened with prescribed torque. The …

Transactions of the Japan Society of Mechanical Engineers. C 76(768), 1970-1977, 2010-08-25

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20

Finite Element Analysis of the Mechanical Behavior of Multi-Bolted Joints Subjected to Shear Loads [in Japanese]

FUKUOKA Toshimichi , NOMURA Masataka , MINODA Yousei

When subjected to external forces, bolted joints behave in a complex manner especially in the case of the joints being clamped with multiple bolts. Friction type joints are widely used for the joints …

Transactions of the Japan Society of Mechanical Engineers. A 76(768), 1032-1039, 2010-08-25

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Search Results:　 1-20 of 390

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Search Results: 1-20 of 390

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Search Results:　 1-20 of 390