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- TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C
- TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
- TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
- Transactions of the Japan Society of Mechanical Engineers Series C
- Transactions of the Japan Society of Mechanical Engineers Series B
- Transactions of the Japan Society of Mechanical Engineers Series A
Volume 9 (1943 - 1944･･･
- Issue 37-4 Pages 113-
- Issue 37-3 Pages 53-
- Issue 37-2 Pages 103-
- Issue 37-1 Pages 161-
- Issue 36-4 Pages 89-
- Issue 36-2 Pages 69-
- Issue 36-1 Pages 121-
- Issue 35-4 Pages 27-
- Issue 35-3 Pages 23-
- Issue 35-2 Pages 43-
- Issue 35-1 Pages 33-
- Issue 34-4 Pages 1-
- Issue 34-3 Pages 1-
- Issue 34-2 Pages 1-
- Issue 34-1 Pages 1-
Volume 8 (1942)
- Issue 33-4 Pages 215-
- Issue 33-3 Pages 33-
- Issue 33-2 Pages 63-
- Issue 33-1 Pages 185-
- Issue 32-4 Pages 185-
- Issue 32-3 Pages 21-
- Issue 32-2 Pages 53-
- Issue 32-1 Pages 117-
- Issue 31-4 Pages 101-
- Issue 31-3 Pages 1-
- Issue 31-2 Pages 25-
- Issue 31-1 Pages 43-
- Issue 30-4 Pages 1-
- Issue 30-2 Pages 1-
- Issue 30-1 Pages 1-
Volume 29, Issue 200
Displaying 1-25 of 25 articles from this issue
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Shuji TAIRA, Jyunichi ARIMA1963 Volume 29 Issue 200 Pages 645-657
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSSeveral basic problems concerning the stress measurement by X-ray remain to be further investigated for example, the correspondence of the stress measured by X-ray method to that obtained by mechanical means. The authors had found out the practical significance of appling sin2 ψ method (Christenson and Rowland method) to stress measuring, and examined of the effect of radiation area on the stress value using both the film and counter method in plate specimens of 0.07% and 0.55% carbon steels. 1) Stresses measured by the film showed sufficiently exact values under the test condition employed by the authors. Measured stresses were in fairly good agreement with the mechanically obtained ones. 2) In the case of counter method applied to the heat-treated specimens of carbon steel, the value of cosec θψ was found to be deviated from the theoretical one for the oblique incidence of 45° owing to the absorption of X-ray by materials, and asymmetricity of diffracted X-rays. This tendency becoms more conspicuous as the radiation area is increased. Therefore, sin2ψ method should be used in this case.View full abstractDownload PDF (1541K) -
Kunio NISHIOKA, Nobuyoshi HISAMITSU1963 Volume 29 Issue 200 Pages 657-662
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSBy means of the two-dimensional reflective photoelastic method, the authors have investigated the influence of the rigidity of member on the stress concentration factor (scf.) at the reentrant corner of triangular rib, when the members were intersected at right angle and subjected to pure bending. The results obtained were as follows : 1) Under a given geometry of rib, the great increase of scf. was recognized with increasing rigidity of member. When the rigidity of member becomes three times of that in 1st report, it is desirable to increase the rib thickness or the number of ribs so as to reduce the scf. 2) The ratio of maximum stresses at the reentrant corner, γ, was introduced for the case where the same bending moment was applied to the member having various rigidities. γ did not change considerably in the high rigidity, so that the scfs. for untested range of high rigidity might be estimated from this γ.View full abstractDownload PDF (848K) -
Minoru KAWAMOTO, Yukihiko IBUKI, Hideo NAKAMURA1963 Volume 29 Issue 200 Pages 663-673
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSConstant stress and constant deflexion low cycle fatigue tests were carried out on 0.35% Carbon steel under the conditions of 110rpm, 62 rpm and 62 rpm (air blast cooling) at room temperature, with a Wohler type fatigue testing machine. Changes of vertical deflexion and horizontal deflexion at the loading end of test specimens were measured throughout the constant stress test; the change of stress in another test. Process of crack initiation and propagation was also observed. The main results obtained are as follows : Effect of frequency and cooling was recognized in constant stress test, but not in another test. Changes of deflexion and stress showed perfectly opposite tendency. Process of crack initiation and propagation was quite different in the respective tests. Moreover, both test results are compared and discussed on the basis of static bending test data.View full abstractDownload PDF (1300K) -
Itsuro TATSUKAWA1963 Volume 29 Issue 200 Pages 674-680
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThe transient creep characteristics at 400° to 500°C under bending were examined on 0.08%C mild steel and 0.18%C-0.54% Si-1.12% Mn high-strength steel by a cantilever-bending method originally developed by G.T. Harris and his coworkers. The results experimentally obtained are as follows : The stress-distribution of a nonlinear shape over the cross-section of the specimen plastically deformed with constant bending moment is time-dependent during the transient stage of creep, being accompanied by slight decrease in the normal stress at the outermost layer, and then the log-log plots of the strain-rate at the outermost fibre versus the time for respective creep-curve generally show an approximately show an approximately straight-line relations in a way similar to those in conventional tension creep test, except in instances in which the plots deviate obviously from the straight-line evidently depending on the conditions of varying stress.View full abstractDownload PDF (1027K) -
Toshinori KORI, Shigemi SASAKI1963 Volume 29 Issue 200 Pages 681-689
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSIn order to investigate the analysis of fatigue stage and prediction of fatigue life, the micro plastic stress-strain hysteresis loops were measured through all stages of fatigue process by wire strain gauge 3∼4 mm in length. The main results obtained are as follows : (1) The size of hysteresis loop is varied, and the fatigue lives were shorter at the large variation. (2) The fatigue process can be divided into the three stages, the 1st stage is within 8% of the life and after 50% of the life it proceeds to the 3rd stage. (3) The prediction of fatigue life by non-destructive method is opened up by measuring the micro plastic hysteresis loops during the fatigue process. (4) The experimental results obtained can be analysed basing on the assumption that the meta stable and the unstable state are initiate and propagate statistically by moving of atoms.View full abstractDownload PDF (1042K) -
Takashi NAKAYAMA1963 Volume 29 Issue 200 Pages 690-696
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThe forms of the elastic-plastic boundary were described in the 1st report which concerns with the elastic-plastic torsion of a shaft with six semi-circular longitudinal grooves. Within the author's knowledge, for the shaft with complicated contour such as in the report, the warping of the cross-section has not yet been determined except the egg-shaped contour shaft. In this 2nd report the warping of the cross-section of the shaft is calculated on the basis of the results obtained in the 1st report. First, to determine the warping z in the elastic region, the relation between the value of z at each nodal point and the value of φ obtained in the 1st report is determined by placing the triangular net over the cross-section as in the 1st report; the value of z are obtained by relaxational method. After the warping in the elastic region is determined, the warping is the plastic region can easily be computed by the equation already established analytically.View full abstractDownload PDF (754K) -
Juro WATANABE, Yutaka ARAKIDA1963 Volume 29 Issue 200 Pages 696-702
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSWhen a steel specimen is finished by some mechanical procedures viz. turning, grinding, mechanical polishing etc., the surface of the specimen is coated by an affected layer due to local strain hardening action in these finishing procedures. It is said that the influence of this layer on mechanical strength of a steel specimen is, in often case, not quite negligible. But many questions are still left open yet to be solved with respect to its quantitative consequence. In this study, thickness of this layer and degree of strain hardening in this layer of rotary bending fatigue specimens are decided from distribution of hardness value and X-ray diffraction line width within the surface layer. Local strain hardening in such layer is mitigated by a vacuum low temperature annealing of specimen. By comparison of two kind of endurance limit values obtained before and after vacuum annealing, it has been shown that the rotary bending fatigue strength depends on a hardness of the zone which is extremely near the specimen surface. For some experimental purpose, these results will arouse our caution to the exitence of the "machined surface layer"View full abstractDownload PDF (1060K) -
Tatsuo TOKUOKA1963 Volume 29 Issue 200 Pages 703-705
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThe paper deals with the fundamental relations between Prandtl-Reuss type plastic body represented by the incremental strain theory and Maxwell type viscoelastic body offered by the author. The Maxwell type viscoelastic body is assumed to be isotropic. Further the restrictions that Hooke's law holds with respect to elasticity and that the equivalent plastic strain integrated over the strain-path is a certain function of the equivalent stress in the loading process, are imposed on the body; then it is demonstrated that the Maxwell type viscoelastic body imposed by these restrictions denotes the Prandtl-Reuss type plastic one. The paper concludes that the Prandtl-Reuss type plastic body is a special case of the Maxwell type viscoelastic one.View full abstractDownload PDF (449K) -
Yukichi ASAKAWA1963 Volume 29 Issue 200 Pages 706-718
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThe author expressed formally a new opinion about the occurrence of slip and rupture from the standpoint of non-elastic energy dissipation. This paper treats the from and occurrence of slip and rupture which occurred under a pure axial tension, from the standpoint of the author's new idea. A uniform elongation is generally stepped by a local deformation ( a deformation of a local portion). The relation between the uniform deformation and the local deformation is, as it were, the relation between the stationary state and the transition state as considered in physics. The transition state corresponds to an occurrence of a slip band, and the stationary state corresponds to a state of a uniform elongation. Namely, the so-called lawer yield point corresponds to the value of P cosθ, P being the load just before lowering, θ being the inclination of the slip band.View full abstractDownload PDF (3188K) -
Hiroshi NAKAMURA, Tatsuo AMAKASU1963 Volume 29 Issue 200 Pages 719-728
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThe authors have conducted fatigue tests on induction hardened V-notched specimens (ρ=0.25mm, 0.5mm, 1mm and 5mm) with C=0.13% steel. Induction-heating temperature was chosen 700°C, 800°C, 900°C, 1000°C, and 1100°C. The experimental results may be summarized as follows : (i) There is a favourable difference between σw1and σw2, when ρ is 0.25mm, 0.5mm, or 1mm; but no difference between σw1and σw2 at ρ=5mm. (ii) The absolute values of σw2 reach a maximum at 1100°C, and decrease as the heating temperature decrease. The value of σw1 at 1100°C is higher then that at the other temperatures, but the values of σw1 show no difference from those at other temperatures. The values of σw1 andσw2 are almost proportional to the hardness at the notched-bottom, within the range of these experiments. (iii) For discussion of the crack-development, we calculated the stress of crack-tip with simple form, and examined the simple relation between the calculated-stress and hardness.View full abstractDownload PDF (1405K) -
Nobuo TAKEDA1963 Volume 29 Issue 200 Pages 729-737
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThe results of measurements of distortions caused by induction hardening were described in the 1st and 2nd reports, and the mechanisms of distortion of gear teeth were studied in the 3rd report. In the present paper, the mechanism of inner diameter distortion due to induction heating has been considered. We can deal with circular plates instead of gears in this case. The temperature distribution in the circular plate when induction-heated has been obtained by graphical solution, and the equation of thermal stress distribution has been introduced. Thus, the thermal stress and inner diameter distortion are calculated for several induction heating conditions, and the mechanism of distortion caused by induction heating has been made clear.View full abstractDownload PDF (1046K) -
Minoru KAWAMOTO, Hiroshi NAKAJIMA, Toshio NONAKA, Yasuhiro FUCHIGAMI, ...1963 Volume 29 Issue 200 Pages 738-744
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSEffects of heating and cooling speed, and hold time at maximum cycle temperature on thermal fatigue life subjected to mechanical strain cycling independently were experimentally investigated. Heating and cooling time apparently did not affect the number of cycles to fracture, but there was marked difference between the photomicrograph of the specimen fractured at 5 seconds of heating and cooling time, and that at 18 seconds. Increasing the hold time at 700°C in high mechanical strain region increased the number of cycles to fracture, whereas the same increase in low mechanical strain region decreased the number of cycles to fracture. The time of exposure at 500°C did not affect the number of cycles to fracture in high mechanical strain region, and increasing the hold time at the same temperature in low mechanical strain region decreased the number of cycles to fracture.View full abstractDownload PDF (1341K) -
Masaichiro SEIKA, Masamitsu ISHII, Yoshio KURUSU1963 Volume 29 Issue 200 Pages 745-749
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThe maximum stress in an infinite plate with a circular hole reinforced by a stiffening ring submitted to tension is obtained by the photoelastic freezing method. Araldite B is used for the photoelastic material and the stiffening ring is bonded to the hole cut in the plate. The plane of slice in the ring is taken parallel to the plane of plate. The maximum stress in the reinforcements is obtained and the influence of the depth and thickness of the ring is investigated. Comparison is made with the theoretical results obtained previously for the two-dimensional case and considerable difference has been found. The results obtained in this paper are of practical interest in connection with the reinforcement of the the plate having a hale.View full abstractDownload PDF (1247K) -
Osamu TAMATE, Kin'ya ITO1963 Volume 29 Issue 200 Pages 750-755
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThis paper deals with a nonlinear problem of a circular thick plate pressed by a uniform load against an absolutely rigid, smooth, horizontal foundation and sustaining a moment uniformly distributed along the edge of the plate by using E. Reissner's theory. The results obtained here contain the classical plate theory predictions in its limiting case. In order to clarify the significance of the effect of transverse normal stress in addition to the effect of shear deformation, the stress distribution in the plate, the force field on the foundation and the relation between the load and moment are numerically obtained and compared with the results of the classical plate theory.View full abstractDownload PDF (665K) -
Ichiro ICHINO, Hiroshi TAKAHASHI1963 Volume 29 Issue 200 Pages 755-765
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThe theory of nonsymmetrical bending state for a spherical shell was studied by A. Havers and Tsuboi. We derived more explicit and complete equations for spherical shells using a stress function. And we applied our formulas to a spherical shell with a local tangential load.View full abstractDownload PDF (1021K) -
Hironobu NISITANI1963 Volume 29 Issue 200 Pages 765-768
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSUtilizing the physical meaning of interference of notch effects in three dimensional elasticity, the author caluculated the stress concentration factors (s.c.f.) of an infinite body having an infinite row of spheroidal cavities subjected to tensile load. If the ratio p/t (p : pitch of spheroids, t : major-semiaxis is spheroid) is constant, the interference of notch effects decreases with the sharpness of notch ρ/t(ρ : notch radius at the end of major-axis). He also caluculated the s.c.f. of an infinite body having two spherical cavities under tension by the same method. The results are in close agreement with the exact values obtained by Miyamoto.View full abstractDownload PDF (480K) -
Atsushi WATARI, Takanao SUGIMOTO1963 Volume 29 Issue 200 Pages 769-782
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSSelf-excited vibrations caused by dry friction, which is generally expressed as a function of relative sliding velocities between two solid bodies, are analysed theoretically and observed experimentally. The characteristics of these vibrations are devided into two groups by the type of friction. One is experienced in the case of pure dry friction, the amplitudes of steady vibration increase with the increase of sliding velocities and the frequencies are nearly equal to the natural frequency of the system. Another occurs in the case of boundary lubrication, the amplitudes vary slowly with sliding velocities. In the case of boundary lubrication, self-excited vibrations occur by hard excitation, even if the frictional force increases with the increase of relative velocities. Experimental results obtained from the case by dry friction show good coincidence with the theoretical results.View full abstractDownload PDF (1384K) -
Heki SHIBATA, Tatsuya SHIGETA1963 Volume 29 Issue 200 Pages 783-793
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSTo secure reliable piping systems in nuclear power plants under a violent earthquake, the seismology in connection with piping works should be developed. For this purpose, it is necessary to study on the dynamic behavior of a piping system as a complicated beam. In this paper, the authors deal with vibration characteristics of a complicated but bear beam, effects of additional elements on the bear beam, simulation of vibration belonging to each mode of the beam to that of a single degree-of-freedom system and its steady-state response expressed as its displacement or bending moment to the harmonic input. After completing these analyses, the response of a complicated beam to a random input can be obtained by superposing the response of every corresponding single degree-of-freedom system on it.View full abstractDownload PDF (1288K) -
Seiichiro MAEZAWA1963 Volume 29 Issue 200 Pages 794-804
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSIn the foregoing reports, the author analysed exactly the periodic response to a sinusoidal input of the single-loop automatic control system including a piecewise-linear element of certain kind by means of new method utilizing the perfect Fourier series. In this report, however, the characteristics of the piecewise-linear element to be treated are generalized to such point that they are composed of two unsymmetrical or three symmetrical regions and their switching over conditions contain both hysteresis and jump. At the same time, the expression for the resulting output is changed from that referred to the cosine part of the fundamental harmonic to that referred to the fundamental harmonic itself, so that the relation to the describing function method is made much clearer. Lastly, the existence of the solution of the infinite set of simultaneous linear equations utilized in the way of the solving procedure and the convergency of the approximate solution by curtailment are both discussed to solidify the mathematical basis of our method.View full abstractDownload PDF (962K) -
Tatsuo MITSUMAKI1963 Volume 29 Issue 200 Pages 805-811
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSIn adaptive control systems, the parameters of the controller are adjusted to obtain an optimum response using some performance index and the root mean square error value criterion is widely used as the most general and powerful performance index. This paper shows a new performance index for on-off control systems which pays an attention to the frequency of zero crossings that the number of the error signals crosses the zero value in unit time. If the parameter is adjusted to maximize the frequency of zero crossings in adaptive control systems, the equivalent result is obtained as the one obtained by the root mean square error criterion and some result by analog computer is also presented.View full abstractDownload PDF (812K) -
Yoshikazu SAWARAGI, Yoshifumi SUNAHARA, Takayoshi NAKAMIZO1963 Volume 29 Issue 200 Pages 812-820
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSA statistical linearization technique for a nonlinear element of zero-memory type with a non-stationary random input is developed in this paper. For this purpose, the equivalent gain of a nonlinear element subjected to a non-stationary random input is defined. This equivalent gain may be available to such important problems in practice as the analysis for the response of nonlinear time-invariant or -variant control systems with a non-stationary random input. To demonstrate this technique, detailed discussions on the evaluation of response and the contribution of distortion due to nonlinear characteristics are performed concerning a particular type of nonlinear time-variant control system with a stationary random input.View full abstractDownload PDF (993K) -
Senshi KOBAYASHI, Kunihiko ICHIKAWA1963 Volume 29 Issue 200 Pages 820-829
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSIn this paper, the forced oscillations in the linear servomechanism with Coulomb friction and static friction are analysed exactly. For the forced oscillations with intermittent stopping in the system having only Coulomb friction, the natural anti-resonance phenomena exist and the multiple jumping phenomena occur in the input R/F-ono-stop period λπ/ω characteristics, etc. when viscous damping ζ is small. For large ζ, the R/F-λπ/ω characteristics, ect. are stable. The effects of static friction are that the R/F-λπ/ω characteristics are hard in contrast with the soft ones when only Coulomb friction and then the complete stopping boundaries exist. An analytic method using the frequency response of the linear part of system is possible for the forced oscillations without stopping.View full abstractDownload PDF (1092K) -
Taizo SAWAMURA, Hideo HANAFUSA1963 Volume 29 Issue 200 Pages 829-835
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSIn a servomechanism operated by the PWM mode, the dither in the output becomes unstable at a certain value of the loop gain. When a low-pass filter is used as the feedback circuit, it cuts off the feedback of the dither component and stabilizes the dither. However, since the servo loop tends to become unstable on account of the lag characteristics of the compensating element, we must consider the stability of the whole loop as well as that of the dither in order to determine the stability limit. In this paper, the stability problems are studied for the case where the feedback circuit consists of a first order system. The optimum time constant of the system is also given in accordance with the pulse transmission lag in the forward loop. The analytical results are verified by the experiments carried out with an electrohydraulic servomechanism.View full abstractDownload PDF (888K) -
Taizo SAWAMURA, Hideo HANAFUSA1963 Volume 29 Issue 200 Pages 836-841
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSPhase-lead network in the feedback circuit is effective to stabilize the dither in the servomechanism operated by the PWN mode, because it compensates the pulse transmission lag in the forward circuit. In this paper, the stability problems are studied for the case where the feedback circuit consists of two typical types of phase-lead networks. Next, two types of the compensating elements are compared : one is a first order system and the other is a phase-lead network. It has been shown that they should be selected properly according to the pulse transmission lag. Finally, the effects of the stabilization by the phase-lead network have been verified by experiments.View full abstractDownload PDF (763K) -
Kikuo OKI1963 Volume 29 Issue 200 Pages 842-851
Published: April 25, 1963
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThis paper discusses the difference between the manual control and the automatic control of the navigational depth and attitude angle of the submarine. Starting with the equations of the longitudinal motion of the submarine, the transfer functions and the characteristic equations are calculated for several cases. The conclusions are that the control system, in which the control surfaces are connected with a definite positive ratio, is the most practical and suitable for the automatic depth control system or the joystick system, and also that in the case of the two-man control, the stern operatar must be the main controller and be very skilful.View full abstractDownload PDF (1058K)
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