Transactions of the Japan Society of Mechanical Engineers Series C

Online ISSN : 1884-8354
Print ISSN : 0387-5024

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Volume 51, Issue 469

Displaying 1-34 of 34 articles from this issue

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Recent Trends of Application of Upper Bound and Energy Methods to Plastic

Manabu KIUCHI

1985 Volume 51 Issue 469 Pages 2197-2203
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2197

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On the Suppression of Ground Vibration by Active Force Control : On the Hybrid Force Control

Nobuo TANAKA, Yoshihiro KIKUSHIMA

1985 Volume 51 Issue 469 Pages 2204-2212
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2204

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Vibration and Rotary Crankshaft Behavior of A Rolling-Piston Rotary Compressor at Shut Down

kensaku IMAICHI, Masafumi FUKUSHIMA, Noriaki ISHII, shigeru MURAMATSU, ...

1985 Volume 51 Issue 469 Pages 2213-2223
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2213

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Dynamic stresses in a Rod of Arbitrary Cross-Section to General Transient Torques

Kosuke NAGAYA, Sadahiko TAKEDA, toyohiko HAYASHISHITA

1985 Volume 51 Issue 469 Pages 2224-2232
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2224

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Optimal Starting Motion Control for a Flexible Mechanical System : 1st Report, Theoretical Investigation for a Single Degree of Freedom System

Kyosuke ONO

1985 Volume 51 Issue 469 Pages 2233-2243
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2233

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Unstable Vibration of Rotor due to Contact Friction : Critical Contact Condition for On-set of Unstable Whirling

Noriaki HAGIWARA, Takashi KONO

1985 Volume 51 Issue 469 Pages 2244-2252
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2244

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Internal Resonance in a Rotating Shaft System : The Coincidence of Two Critical Speeds for Subharmonic Oscillation of order 1/2 and Synchronous Backward Precession

Yukio ISIDA, Toshio YAMAMOTO, Takashi IKEDA, Tetsuyoshi AKITA

1985 Volume 51 Issue 469 Pages 2253-2260
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2253

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Vibration of Rotating Prestressed Cylindrical Shells

Takashi SAITO, Yukishige TSUKAHARA, Mitsuru ENDO

1985 Volume 51 Issue 469 Pages 2261-2268
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2261

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Vibration of Flexible Rotors Supported by Anisotropic Springs

Yoshio IWATA, Akiyoshi TAMURA, Hidenori SATO

1985 Volume 51 Issue 469 Pages 2269-2275
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2269

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The Frontal Transfer Matrix Method : Efficient Solution of Transfer Matrix and Reanalysis

Yoji OKADA, Walter PILKEY, BoPing WANG

1985 Volume 51 Issue 469 Pages 2276-2282
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2276

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Elastohydrodynamic Lubrication of Porous Squeeze Bearings with Non-Newtonian Fluids

Sanae WADA, Syunichi NISHIDA

1985 Volume 51 Issue 469 Pages 2283-2290
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2283

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Dynamic Characteristics of Flying Head Slider to Running Wavy Disk

Shigehisa FUKUI, Kenji KOGURE, Yasunaga MITSUYA

1985 Volume 51 Issue 469 Pages 2291-2299
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2291

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Manufacturing and Performance of Spheroidal Graphite Cast Iron Gears : 2nd Report, Load-Carrying Capacities of As-Cast FCD 70∼80 Gears

Yasutsune ARIURA, Satoshi ODA, Tsutomu NAKANISHI, Mitsuru YANO, Taku U ...

1985 Volume 51 Issue 469 Pages 2300-2308
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2300

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A Development of Plastic Gear for Power-Transmission : Large Wear on the Tooth Root and Tooth Fracture near Pitch Point

Kenichi TERASAWA, Tomoteru NISHIDA, Naohisa TSUKAMOTO, Kason SEKI

1985 Volume 51 Issue 469 Pages 2309-2315
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2309

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Vibration on Power Transmission Helical Gears : Approximate Equation of Stiffness

Kiyohiko UMEZAWA, Toshio SUZUKI, Taichi SATO

1985 Volume 51 Issue 469 Pages 2316-2323
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2316

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A Study on Pin-Wheel Globoidat Worm Gearing : 1st Report, Theoretical Study

Yun Long WEI, Takao SAKAI, Tetsuya OIZUMI

1985 Volume 51 Issue 469 Pages 2324-2331
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2324

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A Study on Rolling Finish of Gear : Plastic Deformations by Rolling Experiment of Rollers

Yoshio TERAUCHI, Mitsunobu SHIRAISHI, Tadaaki ASHIZAWA

1985 Volume 51 Issue 469 Pages 2332-2340
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2332

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Study on Welded Structure Gears : 9th Report, Deformation and Stress

Takehide SAYAMA, Kunikazu HAYASHI, Kiyohiko UMEZAWA

1985 Volume 51 Issue 469 Pages 2341-2349
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2341

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Pitting Tests of Power Transmitting Gears and Evaluation Method of Them : 2nd Report, Relations between the Pitting Mean Areas and Their Influence Factors

Yasutaka YAMAKURA, Tosho OSANAI

1985 Volume 51 Issue 469 Pages 2350-2356
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2350

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Application of the Boundary Element to Threaded Connection : 2nd Report, In Case of Threaded Connection with Free Flat Boundaries

Michihiko TANAKA, Akira YAMADA

1985 Volume 51 Issue 469 Pages 2357-2363
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2357

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An Analysis of surface Roughening in Sheet Metal Forming by Rigid-Plastic Finite Element Method : 2nd Report, Effects of Deformation Paths on Roughening Behaviour and Forming Limit Strain

Norio TAKAKURA, Seiji OBATA, Katsuhiko YAMAGUCHI, Masayoshi FUKUDA

1985 Volume 51 Issue 469 Pages 2364-2372
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2364

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A Study on Laser Hardening : 3rd Report, Optimization of Laser Irradiating Condition

Etsuji OMURA, Yoshiharu NAMBA, Saburo MAKINOUCHI

1985 Volume 51 Issue 469 Pages 2373-2380
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2373

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Surface Roughness Measurement by Scanning Electron Microscope : by Digital Processing

Hisayoshi SATO, Masanori OHORI

1985 Volume 51 Issue 469 Pages 2381-2388
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2381

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On a simple Orientation of parts by a Stepwise Track of the Feeder in Automatic Assembling

Yoshihiko HONMA

1985 Volume 51 Issue 469 Pages 2389-2392
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2389

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Natural Frequency of an Edge-Fixed Disc in Contact with a Liquid

Hajime TAKADA, Kazuhiko ONO

1985 Volume 51 Issue 469 Pages 2393-2396
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2393

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This paper deals with the natural frequency of an edge-fixed disc in contact with a liquid, which acts as an added mass to the disc reducing its natural frequency. Calculations and experiments are carried out for the following two cases : Disc-shaped liquid is kept on the disc (1) with its free surface parallel to the disc and (2) surrounded by rigid walls without air content. In Case (1) the natural frequency of the disc decreases with increased liquid height, while in Case (2) vice versa. The experimental results agree well with the calculations by means of finite element method within 4.3% error for the nodeless mode and for the mode with one diametral- and zero circular node. A reduction formula of the reducing ratio of the frequency is derived for arbitrary disc thickness, radius and density and also for arbitrary liquid density.

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On the Suppression of the Ground Vibration by Active Force Controller : 5th Report, Experiment of the Hybrid Force Control Method

Nobuo TANAKA, Yoshihiro KIKUSHIMA

1985 Volume 51 Issue 469 Pages 2397-2402
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2397

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In order to suppress the vibration as pollution generated by machines, an active force control method-a hybrid force control method-was proposed in the previous paper. This method aims to eliminate the exciting force of machines in almost all of the frequency range. This paper deals with the realization of the hybrid force control method from a practical point of view. First, based upon the experimental data, the design procedure of the system is presented. Secondly, on the suppression of the vibration as pollution, the control effect in terms of an active damper is considered. Thirdly, from a viewpoint of dynamic compensation, the effectiveness as well as the stabilization procedure of the system is shown. Finally, the realization of the hybrid force control method including both the characteristics of a low-pass filter of an elastic support and that of a high-pass filter of an active force control method is performed experimentally.

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Approximate Solution of a Gear System Subjected to Random Excitation

Keijin SATO, Sumio YAMAMOTO, Osamu KAMADA, Nobuo TAKATSU

1985 Volume 51 Issue 469 Pages 2403-2407
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2403

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Forced vibration of a gear system excited by transmission error having a period equal to the meshing period and by a random force, is analyzed approximately by means of an averaging method. Some numerical examples are given. To facilitate analytical treatment, the time varying parameter system is transformed into a time invariant parameter system.

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Improvement of Adhesion Force between Wheel and Rail under Water Lubrication : Application of a Composite Type of Conditioning Block to a Wheel-Tread

Tadao OHYAMA, Yoshitaka SUGIMOTO, Yoshiro NATSUI, Kohji NAKAMURA, Sato ...

1985 Volume 51 Issue 469 Pages 2408-2413
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2408

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In order to improve adhesion force between wheel and rail under water lubrication, a special composite type of conditioning block was developed for rubbing wheel treads during braking under the pressure of adhesion force with the block was investigated by the experiments using a large scale rolling contact testing machine. Then, some braking tests were carried out with railway cars at the speeds of beyond 120 km/h. by applying the block to wheel treads during braking, gross slips were reduced and preferable adhesion characteristics were obtained under wet condition. The adhesion coefficients with the blocks were about 1.4 times higher than the values without the blocks under water lubrication.

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Interface Pressure Distribution of Bolt-Flange Assembly under Complex Loading Condition : A Contribution to Determine Reasonable Mathematical Model of Joint

Shuzo ITOH, Yasunori MURAKAMI, Yoshimi ITO

1985 Volume 51 Issue 469 Pages 2414-2418
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2414

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The necessity of establishing the determination methodology of the mathematical model of the machine tool joint becomes more important recently. In this study, thus, the interface pressure distribution of the bolt-flange assembly under complex loading condition was measured by means of the ultrasonic waves method. From the results, it can be observed that the initial tightening force and roughness of joint surface have large influence on the change of the interface pressure distribution due to the external loading (bending moment). On the basis of the experimental evidences, furthermore, the data available for the determination of the mathematical model have been arranged. For instance, the data available for the determination of the mathematical model have been arranged. For instance, the pressure effective area is largely moved when the bending moment commences to effect, but it is not so large at the further loading. In addition, in both the cases, the pressure effective area are, in general, maintained as the same as that under no external loading.

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Some Effects of Coated Metal Layer on the Work Surface During the Metal Cutting Process : 1st Report, Cutting of copper with a 60 Sn Solder

Katsumi SAKAKIDA, Hiromi ISHIKAWA

1985 Volume 51 Issue 469 Pages 2419-2422
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2419

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The effects of a 60 Sn solder overlaid at the copper surface were studied experimentally on the cutting force and on the chip thickness ratio. The presence of the boundary layer between the solder and copper produced a higher chip thickness ratio and reducd the cutting force. It has been reported that similar effects are found when fatty acids are applied to the surface of a copper or alminumspecimen. It can be demonstrated that an increase in the size of the solder layer also increases the chip thickness ratio.

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Research on the Tool-Workpiece Compatibility in Deep Drawing : 1st Report, Construction and Characterization of a New Equipment with Rotatable Part of Die

Shigeaki TSUTSUMI, Takao KATO

1985 Volume 51 Issue 469 Pages 2423-2429
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2423

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An experimental equipment to assess the tool-workpiece compatibility in deep drawing was designed, built, and characterized. In this construction, a die is divided into two coaxial parts and the one with die profile radius can be rotated at a desired speed so that the meridian component of frictional force reduces to zero. In order to test the performance of this equipment, some trial draws of copper sheets were carried out, and it was proved that the all functioned as designed. While the forces carried by the flat part and the curved part of die gave a vivid description of the interaction between tool and workpiece, absolute value of frictional force on the die radius was estimated for the first time by subtracting punch load with rotation from one without rotation.

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Delectability of Fatigue Crack Growth by Ultrasonic Testing : Development of Multi-Probe

Akihiko KATAMINE, Motohisa ONOZAWA, Yugoro ISHII

1985 Volume 51 Issue 469 Pages 2430-2433
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2430

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There are many methods for measuring the depth of fatigue crack by ultrasonic testing. The flaw heights are measured by ultrasonic angle beam testing. This method has various problems. For example, pulse amplitude is affected by flaw size and the inclination of a flaw. This time, the authors developed a special probe. This work has been carried out to investigate the flaw detection sensitivity of the probe. The results indicate that the probe can estimate fatigue crack depth in an accuracy of 0.52.0 mm.

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Critical Conditions in Ironing Process of Thin Wall Metal Cups : 1st Report, Ironing Test Apparatus and Factors Affecting Ironing Limit

Masami SAITOH, Hiroyuki SAIKI, Nozomu KAWAI

1985 Volume 51 Issue 469 Pages 2434-2441
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2434

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A new apparatus for ironing test has been made to resolve the critical conditions in the ironing process of thin wall metal cups. Ironing punch load (P) and frictional force (F_P) acting on the punch surface can be directly measured. Two main components of F_P, i. e. (F_Pd) on the ironing region and (F_Pf) on the region after ironing, are separated from one another by using F_pf estimated from the measured stripping load of the ironed cup. Thus, the axial stress in the cup wall at die exit can be exactly calculated. The results are as follows. (1) As the friction on the punch becomes higher, the axial stress in the cup wall becomes smaller and the welding becomes easy to occur. (2) The axial fracture stress in an ironed cup wall is larger than the critical stress of the original cup calculated by using the maximum load condition under uniaxial and plane strain states.

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Study on Precision Cylindrical Lapping : 3rd Report, On the Rounding Condition in Internal Lapping

Takeo SHINMURA

1985 Volume 51 Issue 469 Pages 2442-2443
Published: September 25, 1985
Released on J-STAGE: February 21, 2008

DOIhttps://doi.org/10.1299/kikaic.51.2442

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This paper discusses analytically on the machining condition for modification of work roundness error by a simple conventional cylindrical lapping method, in which the internal surface of the cylindrical workpiece is machined with the lapping tool supported with two free rotating rollers. The analysis points out that there is a suitable machining condition for modification of roundness error by which the effect of the random and periodic deflections of the supporting roller surface and its rotating axis on the word roundness can be decreased.

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