巻号一覧
58 巻, 6 号
選択された号の論文の26件中1～26を表示しています
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中川 威雄1992 年 58 巻 6 号 p. 930-933
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーPDF形式でダウンロード (3931K) -
遠藤 順一1992 年 58 巻 6 号 p. 934-937
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーPDF形式でダウンロード (3953K) -
戸澤 康壽1992 年 58 巻 6 号 p. 938-942
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーPDF形式でダウンロード (2769K) -
小坂田 宏造1992 年 58 巻 6 号 p. 943-947
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーPDF形式でダウンロード (10955K) -
村川 正夫1992 年 58 巻 6 号 p. 948-951
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーPDF形式でダウンロード (2807K) -
林 央1992 年 58 巻 6 号 p. 952-955
発行日: 1992/06/05
公開日: 2009/10/08
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足立 達也1992 年 58 巻 6 号 p. 956-959
発行日: 1992/06/05
公開日: 2009/10/08
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葉山 益次郎1992 年 58 巻 6 号 p. 960-963
発行日: 1992/06/05
公開日: 2009/10/08
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酒井 利彦, 薄木 栄治, 村上 幸己, 木村 文彦, 伊藤 俊太郎1992 年 58 巻 6 号 p. 967-972
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーRecently CAD/CAM has been applied in many fields to achieve high level automization in design and manufacturing process. The current approach in mechanical industrial field is a partial automization that replaces drafting and machining procedure (NC programing) with a computer process. This type of approach is not enough in higher level design process and manufacturing process, because it uses only geometry and can't resolve the treatment of inherited technical knowledge in design and manufacturing. This is an important problem in practical design and manufacturing. A distributed type of intelligent CAD system was developed at the authors' company for the purpose of improving productivity and quality in both construction of design process and manufacturing process. The principal feature of this system is as follows : After the fundamental design is executed by the intelligent CAD system based on the object-oriented database, the attributes of geometry and design information (or design contents) that is generated from the intelligent CAD drive the conventional CAD systems simultaneously.抄録全体を表示PDF形式でダウンロード (4018K) -
小田 高広, 青柳 誠司, 神谷 好承, 岡部 佐規一1992 年 58 巻 6 号 p. 973-978
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーThis study describes the development of the sheet feeding mechanism using ultrasonic vibration actuator. It consists of a driving rotor, a sub-rotor, and two sets of piezoelectoric vibrators, which is called the dual vibrator in this paper. That vibrator generates the mode of bending vibration. Driving rotor is rotated by the ultrasonic vibration of the dual vibrator. The driving frequency and amplitude of one vibrator is different from that of the other. In this paper, the motion of driving rotor is analyzed theoretically, and it is confirmed that its rotor can be rotated in the clockwise or counterclockwise direction. As a result of fundamental experiments, it was proved that telephone card could be fed easily, and flat and compact sheet feeding mechanism could be obtained.抄録全体を表示PDF形式でダウンロード (932K) -
知識を用いた制約コンパイラ岸 義樹1992 年 58 巻 6 号 p. 979-986
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーThis paper describes a method of constraint compiler from functional constraints expressed by linguistic terms to mathematical constraints in order to get a model of physical behavior and rough values of design variables. The functional constraints are composed of two types of knowledge. One is functional knowledge which represents functional relations among design objects. The other is mathematical knowledge which represents physical formula to give relations between function and behavior. The method derives relations of physical behavior from functional knowledge by making reference to mathematical knowledge, and makes mathematical constraints consistent in all design objects. The mathematical constraints are compiled to constraint networks, which are data to Network Specification Solver (NeSS) using the first order approximation. NeSS is developed by the author, and infers values of design variables from the networks gives some specifications. The method is applied to the design simulation of Laser Graphic Device. As a result, the validity of this method is certified.抄録全体を表示PDF形式でダウンロード (1428K) -
向井 伸治, 古川 進, 木村 文彦, 佐田 登志夫, 小尾 誠1992 年 58 巻 6 号 p. 987-992
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーThe problem of deciding whether two objects are similar or not is very important in the classification of shapes of objects for robot vision and in the creation of knowledge-based systems. This paper presents a method for determining similarity of two convex polyhedra with equal numbers of vertices. The method has the following features; (1) The degree of the similarity is introduced. As the degree becomes higher, two convex polyhedra become to be similar. (2) The computing time for deciding the similarity of two objects is comparatively short. For example, the similarity for convex polyhedra with 16 vertices can be decided in only one or two seconds. (3) The different parts and the similar or the same parts can be classified respectively to some extent. The algorithm is applicable to the problem of deciding congruence of the convex objects too. The various objects are compared with each other and their similarities are calculated. These experimental results show that this method is good for recognizing similarities.抄録全体を表示PDF形式でダウンロード (1092K) -
ファジィ積分モデルによる工具交換時期の評価豊嶋 敏雄, 柴坂 敏郎, 宅間 正則, 北澤 昌昭1992 年 58 巻 6 号 p. 993-998
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーThe skilled machinists evaluate exactly the tool changing time from observational information in cutting process. Such machining know-how gained through long experience may be regarded in a sense as fuzzy object. Recently, the study on the model representation of this know-how are progressed for making use of automatic working. In this paper, a rational way for the constructed model of evaluating the tool changing time is discussed. The proposed model gives the value of sharpness grade by weighing the observational information on fuzzy measure which the machinist's subjective characteristics in grading the tool changing time are identified. From the applications of model using fuzzy integral, it was found that the output of the model agreed approximately with the machinist's evaluation, and that the model became a very useful method for the monitoring by the in-process measurement.抄録全体を表示PDF形式でダウンロード (3238K) -
遠山 茂樹, 波多江 茂樹1992 年 58 巻 6 号 p. 999-1004
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーThis paper presents a new kinematic calibration method based on condition number and an error map method for SCARA robots. The geometric parameters can be identified more precisely by measuring the positions of a hand with minimum condition number configuration. Furthermore, the error map method improves the accuracy of geometric parameters. The experimental results demonstrate that the calibration method made the maximum absolute positioning error of a typical SCARA DD robot less than 0.25mm all over the working area, while the maximum error was 2.20mm in the case of the conventional method.抄録全体を表示PDF形式でダウンロード (728K) -
伊藤 昌文, 羽根 一博, 松田 文夫, 後藤 俊夫1992 年 58 巻 6 号 p. 1005-1010
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーAn FM heterodyne interferometer using the digital signal processing has been constructed for the measurement of short distance (≥2.5cm). The digital signal processing consists of the signal amplitude correction, the signal frequency measurement by averaging beat periods and the signal phase measurement. In the experiments, the distances from 2.5cm to 10.5cm have been measured with the accuracy less than 76.1μm by the phase measurement. The error in the phase measurement was less than that in the frequency measurement by a factor of 3 to 6. The influences of the digital signal processing on the measurement accuracy have also been discussed.抄録全体を表示PDF形式でダウンロード (880K) -
エネルギーによる動作条件の評価小泉 邦雄, 佐々木 基文, 岩城 敏博, 岡部 佐規一, 横山 恭男1992 年 58 巻 6 号 p. 1011-1016
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーThe vibration with collision has essentially an uncertainty of steady-state motion for the impact phenomenon. If an unadjustable excitation like a harmonic force acts upon the system, existence of unstable motion cannot be avoided in the motional property. The difficult point is improved by adjustment of excitation according to the motion. Perturbation of the motion disappears by self timing control of the excitation, then the transient motion can return to the steady-state motion. The problem analytically investigated involves steady-state self-excited vibration with impact, which applies intermittently rectangular pulsive force train by self switching of constant force. The paper presents estimation of impact ability by energy supplied dissipation over a period of the motion which contains the only one shot. When both the switch on position of the pull up force and the switch off position of the pull down force are agreement with the height of impact position, the energy decreases. There is the practical optimum condition that minimizes for the energy in the case of, the drive by pull up and down forces, the bipolar drive.抄録全体を表示PDF形式でダウンロード (2518K) -
木目 健治朗, 中村 恵司, 江草 尚之1992 年 58 巻 6 号 p. 1017-1022
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーA sliding and rotary type of lens actuator is popularly employed in the optical disk drives nowadays. One of the points to be considered in designing this type of actuator is non-linearity caused by the friction between a shaft and a sleeve. This paper presents a model of the focusing servo loop which includes the lens actuator, assuming the friction to be a Coulomb's friction. With this model the influence of the friction on the actuator performance is analyzed and it is confirmed that the analytical results are in good agreement with experimental results. The results of this evaluation are as follows : (1) The velocity of lens at the lead-in mode is a function of friction, the fluctuation of driving force and viscous damping constant. (2) When the loop is closed, the increase of the friction brings about a rectangular shaped error of the focusing servo. (3) When the dynamic friction factor is around 0.15 to 0.3, the influence of the friction on the focusing performance is negligibly small.抄録全体を表示PDF形式でダウンロード (3161K) -
伊藤 俊治, 成清 辰生, 伊藤 正美1992 年 58 巻 6 号 p. 1023-1028
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーA study is presented of measuring method for flat form errors by 2D least square serial 3point method. This method is extensively improved on a serial 3point method. Consequently, this approach can compensate the measuring errors which are caused by fluctuations of 9 displacement sensors implemented on a measuring head. Here, the measuring errors in this case are parallel motion errors and rotatory motion errors of the head. Furthermore, accidental errors which are involved in the measuring values are reduced by least square method. In experimental analysis, a laser interferometer is used as the measuring head. And the influence of form errors of reference surface are removed by calculating data. In this paper the following results are revealed by some simulations and several experiments. (a) The repeatability of this experiment is about 40nm (2σ). (b) Measuring values of this method sufficiently coincide with those obtained by 2D least square serial 2point method.抄録全体を表示PDF形式でダウンロード (919K) -
半円弧ばねの寸法誤差にもとづく変位誤差比の修正方法吉村 靖夫, 楠田 昌之, 赤坂 隆1992 年 58 巻 6 号 p. 1029-1034
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーSo far, authors have clarified the effects of dimensional errors of the parallel spring move-ment with right half circular springs on the error rate of displacement. Although it is desirable for balances that the dimensional errors of springs are eliminated by machining, such a work itself, however, takes engineers much time to correct the dimensional errors. So, the authors propose here a notched springs by which the error rate of displacement can be modified without eliminating the dimensional errors. Following is concluded through theoretical, experimental and FEM analyses. (1) In case of the movement with two circular springs, a notch at around±16deg measured from the position with theminimum thickness is most effective formodification, while the one at the minimum thickness contributes to no modification. (2) In case of that with four circular springs, a notch at around ±3deg measured to the outsides, respectively, from the position with the minimum thickness is most effective for modification, while the one near reinforcing plate shows a few effect.抄録全体を表示PDF形式でダウンロード (3542K) -
制御特性辺見 信彦, 佐藤 海二, 和田 真一, 下河辺 明1992 年 58 巻 6 号 p. 1035-1040
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーThe purpose of the study is to establish the six-degrees of freedom (dof) fine motion mechanism which has the following characteristics : (1) each of the six one-dof motion has the same control characteristics as the others, (2) each one-dof motion does not interfere with the others. In the previous study, the mechanism was theoretically designed so that the open loop characteristics of the six one-dof motions were the same, and so that there was no interference between the motions. Following this, an experimental mechanism was made. In the present study, first, a controller is designed taking only one of the six one-dof motions into account, and then, the same controller parameters are applied to the other five one-dof motions resulting in the same control characteristics as those of the first designed. Thus, it is shown that a controller for each motion does not need to be designed individually.抄録全体を表示PDF形式でダウンロード (841K) -
豊田 利夫, 陳 鵬, 溝田 武人1992 年 58 巻 6 号 p. 1041-1046
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーIn this study, an extraction method of pure failure signal which has been strongly contaminated by noise is investigated for the failure diagnosis of an equipment by using the method of statistical tests in frequency domain. For checking the accuracy of the statistical tests result and obtaining the estimated pure failure signal, the “tests level coefficient β” and “tests level information Ipq” are defined as the standard index for judgment of the tests accuracy. It has been proved by practical examples that the extraction method discussed in this paper is convenient and effective for failure detection and it's origin distinction on a machine equipment diagnosis.抄録全体を表示PDF形式でダウンロード (880K) -
形状特性および絶対回転運動精度の検討ホリカワ オズワルド, 佐藤 海二, 下河辺 明1992 年 58 巻 6 号 p. 1047-1052
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーAiming the achievement of an absolutely high rotary motion accuracy, the paper introduces an improved model of the Active Air Journal Bearing (AAJB) which is a bearing capable of controlling two radial motion of its axis. The model considers its two profile characteristics, i.e. effects of the axis profile errors at the sliding and reference zones on the rotary motion accuracy. Based on the model, transfer functions of these characteristics are derived. With a prototype AAJB, profiles characteristics are simulated and a method of compensating motion errors due to the axis profile errors is proposed. In the method, the profile error of the axis reference zone is measured first, and then the error is sent to the two degrees of freedom controller as the axis positioning reference signal. At a relatively high axis rotational speed, since the controller cannot compensate satisfactorily, an additional repetitive controller is used. Experimental results show that the proposed compensation method can achieve an absolute rotary motion accuracy of 21nm at a speed of 750rpm.抄録全体を表示PDF形式でダウンロード (942K) -
野口 昭治, 塚田 忠夫, 坂本 淳1992 年 58 巻 6 号 p. 1053-1058
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーIn this paper, the authors newly developed the vector indication method to understand radial run-out of ultrahigh precision air spindle. The run-out of rotating spindle was measured by two sensors located perpendicularly to each other on horizontal plane. The new algorithm was presented to get the instantaneous vector of displacement of spindle center for digital processing. It was made clear that the vector indication method was able to confirm the behavior of spindle motion more clearly than Lissajou's figure. Furthermore, the authors removed the form errors of master ball used as the measuring target and the difference between two sensor gains.抄録全体を表示PDF形式でダウンロード (798K) -
垣野 義昭, 岩田 義雄, 岩崎 嘉徳, 大坪 寿1992 年 58 巻 6 号 p. 1059-1064
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーIn order to improve the efficiency and accuracy of 3D measurement and to develop the correctable machining system, a deviation detection type on-the-machine measuring system has been studied in this paper, which employs a 3D displacement detecting probe. After calibrating the measuring probe according to the obtained compensating coefficient, the ring gauge with very high accuracy and machined cam plate were measured. As the results, it was found that the measuring accuracy of this system was within 2μm in whole, and the measuring errors were originated from thermal deformation of the machine caused by ambient temperature and calibration errors.抄録全体を表示PDF形式でダウンロード (929K) -
市田 良夫, 貴志 浩三, 蓮田 裕一1992 年 58 巻 6 号 p. 1065-1071
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーThis paper aims to clarify the optimum grinding condition for fine grain diamond wheels in precision grinding of fine ceramics. A series of plunge surface grinding tests on alumina ceramics have been conducted using fine grain diamond wheels with grain size in the range of 2-6to 5-12μm. On the basis of these results, the optimum grinding condition has been evaluated from a veiw point of grinding ratio. The main results obtained in this paper are as follows : (1) When the grinding speed does not exceed about 1 800m/min, the grinding ratio is solely a function of coefficient of grain depth of cut φg= (v/V) √t/D (v; work speed, V; peripheral wheel speed, t; wheel depth of cut, D; wheel diameter) approximately. (2) When φg exceeds a critical value φgc, a transition from attrition to fracture type in the wear mode of diamond wheel occurs. Therefore, the grinding ratio takes a maximum value at the critical condition φg=φgc. The critical Value φgc decreases in proportion to the mean grain diameter of diamond abrasives.抄録全体を表示PDF形式でダウンロード (5269K) -
解析手法の定式化と一二の適用例帯川 利之, 臼井 英治1992 年 58 巻 6 号 p. 1072-1078
発行日: 1992/06/05
公開日: 2009/10/08
ジャーナル フリーA finite element modelling, which consists of elastic-plastic deformation analysis and unsteady state thermal conduction analysis, has been developed to simulate the serrated chip formation of titanium alloy Ti-6Al-4V. Since the chip formation in metal cutting is one of the large deformation problems, geometrical nonlinearity due to the change of shape is introduced into finite element formulation and over-constraint of incompressibility on the deformation of finite elements in plastic range is relaxed to make the elements deformable as real continuum. A strain criterion for ductile fracture, which is modified using hydrostatic pressure, temperature and strain rate, is applied to the crack growth in the segmentation of the chip. The serrated chips obtained through the simulation shows a striking resemblance in their shape and irregular pitch to those by actual cutting. Maximum temperature does not locate on the rake face but in the chip close to cutting edge because of the low thermal conductivity and low specific heat of titanium alloy.抄録全体を表示PDF形式でダウンロード (1243K)
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