精密工学会誌
Online ISSN : 1882-675X
Print ISSN : 0912-0289
ISSN-L : 0912-0289
52 巻, 5 号
選択された号の論文の27件中1~27を表示しています
  • 佐田 登志夫
    1986 年 52 巻 5 号 p. 768-769
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
  • 岩田 一明
    1986 年 52 巻 5 号 p. 770-773
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
  • 沖野 教郎
    1986 年 52 巻 5 号 p. 774-778
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
  • 渡部 和
    1986 年 52 巻 5 号 p. 779-782
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
  • 諏訪 基
    1986 年 52 巻 5 号 p. 783-786
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
    以上,知識工学の歴史的背景,知識工学への期待ならびに研究の動向を概観した.知識工学は人工知能の応用ということでいろいろな技術分野から関心が寄せられており,一層情報処理技術の適用範囲が広がろうとしていることは大変結構なことと言わなけれぽならない.なぜなら,情報技術は典型的な実験科学であり,従ってその技術水準を高たるたたには数多くの実験が必要だからである.
    知識工学が提唱する,知識ベースを中心に据えたソフトウェアの構築技法は,ソフトウェア環境を高度化する上で多くの利点を含んでいる.その最大の利点は柔軟性であり,その結果,生産システムにおけるソフトウェア開発でもさまざまな実験を試みることができるはずである.その実験を通して,ソフトウェア環境並びにソフトウェアそのものの高度化が達成される.しかしながら,実際的な問題を扱うにつれ,今までの人工知能の成果を借りて来るだけでは対応できない問題が次々とでてきている.その一例は,知識獲得や学習の問題,あいまいさを含む推論,あるいは,人間の思考を支援するたたに必要な認知モデルなどである.このような人工知能の基礎に関する研究が今後一層重要な使命を帯びて来ると考えられる.
  • Σシステム
    永島 晃
    1986 年 52 巻 5 号 p. 787-790
    発行日: 1986/05/05
    公開日: 2010/02/16
    ジャーナル フリー
  • 竹山 秀彦
    1986 年 52 巻 5 号 p. 791-793
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
  • 斎藤 勝政
    1986 年 52 巻 5 号 p. 794-797
    発行日: 1986/05/05
    公開日: 2010/02/16
    ジャーナル フリー
  • 小池 昌義
    1986 年 52 巻 5 号 p. 798-800
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
    生産における計測を,ソフトウェアとしての計測管理技術,コンピュータ化を含たた計測技術のソフトウェア化という側面から検討した.計測の高度化とバカチョソ化の二極分解の中で,計測技術の評価,計測誤差の正しい見積りのたたに体系的な計測管理技術の開発の必要性がますます高まると思われる.
  • 小島 俊雄
    1986 年 52 巻 5 号 p. 801-804
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
    CADシステムは本来,個々の生産技術分野,さらにいえば生産現場ごとの独自性を反映して初たて効果を上げるのであるから,本来標準化と相容れない側面を有している.CADの標準化にあたって,標準化すべき分野,項目,方式などについて,明確にしてゆかねばならぬ点も多い.
    機械系CADの標準化について本文でとりあげなかった活動もある.ISO/TC10(製図)においてはCADに対応しようとする動きがあり,新しいWGを発足させるものと思われる.国内では工業技術院からの委託により,(社)設計製図学会において機械製図システムの標準化の調査研究を5年計画で開始している.ハードウェアおよびソフトウェアの互換性,インタオペラビリティについての混乱に対処するOSI(OpenSystemInterconnection)を前提としたアプローチなどをCADの分野で進たることも要請されている.次世代CADの研究もこのような標準化と製品モデルの面で大いに関係する.
    技術の進歩を阻害しない範囲で,従来の技術の流れに沿う方向で数ンセニンサスを得るためには,標準に関して事ごとにいわれる緊密な「リエゾン」を各方面で随時とってゆくことが重要である.
  • 松村 豊, 平林 建昭, 中村 宗平
    1986 年 52 巻 5 号 p. 805-807
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
  • 坂本 千秋
    1986 年 52 巻 5 号 p. 808-810
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
  • 梶谷 誠
    1986 年 52 巻 5 号 p. 811-814
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
  • 大石 健司, 大野 幸彦, 宮沢 伸一
    1986 年 52 巻 5 号 p. 819-825
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
    Groove wear is formed on both sides of tool-chip contact area when stainless steel (SUS 304) is turned by cubic boron nitride cutting tool in relatively low cutting speed and feed, and differs from crater wear in shape. The purposes of this paper are to clarify the relation between groove wear and physical properties of tool, work material and ambient gases experimentally and to investigate the mechanism of groove wear formation based on the experimental results. The main findings are as follows. (1) Chip is deformed extremely in convex shape on tool rake face at low feed rate, and this makes both sides of chip easier to contact to rake face than that of central part. (2) Groove wear formation is affected by the adhesion between tool and work material. The formation is accelerated by applying argon gas to the cutting point, and controlled by oxygen gas. This tendency is stressed as the increase of Ni content in work material. (3) Considerable amount of tool material is removed from both sides of tool-chip contact area in a short period. This phnomenon is confirmed through the analysis of SEM and EPMA
  • 林 巌, 林 輝, 柏木 克也, 野村 昭一郎, 内野 研二
    1986 年 52 巻 5 号 p. 826-831
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
    The pressure for molding and its influence on the electrostrictive characteristics of PMN ceramics, and the sintering deformation of the cylinder made from the ceramics are studied. The ceramics cylinders will be used as raw materials of the active high rigid bearings of the gear rolling tester which authors intend to construct. The followings are obtained: (1) The good density and the good electrostrictive characteristics are obtained under the pressure lower than 45% of the limit pressure at which some cracks appear in the ceramics cylinder pushed out of a mold. (2) The formulae which can describe the shrinking deformation of ceramics cylinder are obtained under the assumption of the elastic deformation of ceramics cylinder. (3) The shrinking deformation is controlled by using the cylinder base of the same material as expected from the studies with the formulae.
  • 樋口 静一, 花岡 忠昭
    1986 年 52 巻 5 号 p. 832-837
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
    定切込み速度の円筒プランジベルト研削実験より,その研削過程の理論的解明を試みた.その結果,切込み初期から加工完了までの半径減少量の変化,ゴムコンタクトホイールの弾性変形回復による研削量などを明らかにすることができた.
    その研削過程の解明により,初期の段階で切込み速度を速くし,短時間で定常研削状態に到達させ,研削時間の短縮による高能率化を図った.さらに,コンタクトホイールの弾性変形回復による研削量を除去した研削方法を試み,寸法精度を向上させることができた.
  • 碓井 雄一, 坂田 興亜
    1986 年 52 巻 5 号 p. 838-844
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
    Vibrational damping characteristics of beams, which are made of steel plates sandwiching epoxy based adhesive and visco-elastic material, are examined theoretically and experimentally. The damping characteristics of the sandwich beams change with variation of the beam dimensions and the properties of sandwiched adhesive. For example, when epoxy adhesive is used, the damping ratio of the beam becomes higher as the adhesive layer gets thicker and the resonant frequency of the beam is higher. And it becomes clear that the high damping beams can be obtained by using adhesive with suitable properties and controlling adhesive thickness.In addition, the sandwich structure is applied to boring bars, and excellent damping tools are obtained.
  • 辰已 雅一, 林 巌, 林 輝, 内野 研二
    1986 年 52 巻 5 号 p. 845-850
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
    Some actuators made from piezoelectric ceramics are recently used in high precision X-Y tables for manufacturing semiconductors. However, it is very difficult to control the table movement with the high accuracy and high reproducibility of sub-micron order, because the piezoelectric ceramics such as PZT have a peculiar hysteresis. For the materials of microdisplacement actuators, one of the electrostrictive ceramics, PMN (Pb(Mg1/3 Nb2/3)O3 -based ceramics), is more preferable than the other piezoelectric ceramics, because it generates large strains up to 10-3, has the small hysteresis and Young's modulus equal to 1/2 times the steel one. However, the PMN ceramics has a defect that the induced electrostrictive strain becomes very small if an impurity-pyrochlore structure appears in the sintered PMN. So the sintering methods have been researched to obtain the pure PMN material. The authors tried some sintering methods to reduce the hysteresis of the PMN material as much as possible. As the results, the followings are obtained:(1) There are the interesting relations among the impuritypyrochlore structure, the electrostrictive strain and the hysteresis.(2) It is found a sintering method by which the hysteresis is much reduced, though the electrostrictive strain also becomes only a little.
  • 加工原理と二,三の研磨特性
    進村 武男, 高沢 孝哉, 波田野 栄十
    1986 年 52 巻 5 号 p. 851-857
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
    This paper describes the process principle and a few finishing characteristics of the magneticabrasive finishing in which susceptive abrasives magnetically (magnetic-abrasives so called) made of iron and alumina particles are used. It is found experimentally by a model test that the magnetic-abrasive pressure is introduced by magnetic field strength and its measured value reaches at the conventional lapping pressure one. These experimental results are discussed analytically. The experiments showed that a cylindrical workpiece is finished smoothly in a short machining time from the unmachined surface roughness value of about 1.5 μmRmax to the machined value of submicron. Magnetic-abrasive finishing process reported in this paper will be used in practice.
  • 広域型チップブレー力の切りくず折断機構
    長谷川 嘉雄, 花崎 伸作, 藤原 順介, 和田 任弘
    1986 年 52 巻 5 号 p. 858-863
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
    A circular cylinder of SS41 was turned with a new chip breaker, which breaks the long chip under the cutting conditions of cutting speed of 3.0 m/s, depth of cut from 0.1 mm to 3.0 mm and feed rate from 0.05 mm/rev to 0.51 mm/rev. The situations of the chip flow and the chip breaking were taken photos with a high speed camera, and they were analyzed. The mode of the chip breaking is divided into six types according to cutting condition. Each part of this chip breaker has an effect on these types of chip breaking. That is : This chip breaker forces the chip to flow in a certain path not only at up curling but also at side curling, that causes the chip to break. A step on the face perpendicular to the major cutting edge makes the second moment of area of the chip large at comparatively large depth of cut and low feed rate, that makes the strain in the bent chip large and causes the chip to break.
  • 新井 実, 中山 一雄, 柴 和男, 清水 正美, 宮下 政和
    1986 年 52 巻 5 号 p. 864-866,905
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
  • 対話型形状設計法
    沢井 秀, 片山 真一, 沖野 教郎, 嘉数 侑昇
    1986 年 52 巻 5 号 p. 867-873
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
    The mold design system SMDS which was presented at the first report has conversational functions to build up a mold object. This paper describes the method of building up a 3-dimensional object by interactive operations in SMDS. The concept of geometric modeling in this system is based on solid modeler TIPS-1 system. In the TIPS-1 system, 3-dimensional shape is described by TIPS-1 shape description language and represented by set operations of several segments. And geometric data are generated by batch process. In this paper, a theoretical approach to the interactive object modeling is discussed. Secondly, the algorithms are described that realize the interactive object modeling and also output shaded pictures of the object on a raster-scan display. And some results of shaded pictures are presented.
  • モーダルアナリシスの基礎と応用に関する研究
    大久保 信行, 古川 貴康
    1986 年 52 巻 5 号 p. 874-879
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
    For experimental building block approach or substructuring in dynamic design, the measurement of rigid body modes of each component of the structure in free-free state is required. The rigid body modes influence much the level of total response after assembling the components. This paper first describes the necessity of such rigid body modes in building block approach by using a numerical simulation. By taking into account the rigid body motion of a component in free-free state analytically, the method is developed to determine the location of the center of gravity, the moment of inertia around each principal axis based on measured level of frequency response function in low frequency range. The computer program developed is applied to a simple beam structure to confirm that the correct rigid body modes can be obtained. For a complex structure, the rigid body modes of a engine whose geometry is very complex are appropriately determined by the method proposed.
  • ランダム性外乱に対する防振
    高上 輝雄, 神保 泰雄
    1986 年 52 巻 5 号 p. 880-886
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
    In previous papers, active vibration isolation systems are presented for deterministic disturbances. In this paper, it is shown that the system is also effective for random disturbances. For sine form disturbances optimum damping depends on the amplitude of disturbance vibrations. For random disturbances it is found that the same amount of damping becomes optimum by using an amplitude of the equivalent sine form vibrations which have same energy with that of the random vibrations. Optimum control gains are obtained through the same procedures as those of the previous papers. Delicate adjustments of those gains are made with the aid of micro computers.
  • 岸 佐年, 両角 宗晴, 吉田 嘉太郎
    1986 年 52 巻 5 号 p. 887-893
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
    A precise analysis has been made of the problem of interference involved in cutting an internal ball screw with the rotary cutter whose axis is parallel to that of the screw. Firstly, the process of interference, which occurs around the minor diameter of the internal ball screw, is discussed. Secondly, a calculation method is shown. This is to calculate the critical diameter of the cutter with which the interference can be eliminated. Then the design drawing and the experimental manufacture of a rotary cutter is made for a numerical example of an internal ball screw. Finally, the theory is verified by practical cutting of an internal ball screw with the rotary cutter.
  • 宮城 善一, 山本 健太郎
    1986 年 52 巻 5 号 p. 894-899
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
    A new tester to measure micro shearing slippage of the tape is developed, in which an LVDT is used to measure the slippage at 1 or 0.1 μm a digit. By the tester not only the slippage under the application of shearing force but also the recovering slippage after the force is removed can be measured. Shearing and recovering slippage of a polyester tape coated with adhesive of polyacrilic acidester is measured under the following conditions : 0.98 N {100 gf} in shearing force, 0, 20, 40 and 60 min in leaving time, 30 min both in loading and recovering time, and 23 ± 0.5°C and 65 ± 5% RH in atmospheric condition. The results of the experiments and the analyses are concluded briefly as followes : (1) Combination of two Voigt units is effectively adapted for both of the cohesive and boundary slip. (2) The coefficients of the Voigt units in cohesive slip are kept constant throughout the applied leaving time. (3) The coefficients of the Voigt units of boundary slip in short leaving time show higher transient effect and larger terminal velocity of slip, but in the leaving time of 40 min little transient effect is observed, and in the leaving time of 60 min no boundary slip is recognized.
  • 新井 泰彦, 阿波 啓造, 倉田 忠雄
    1986 年 52 巻 5 号 p. 900-904
    発行日: 1986/05/05
    公開日: 2009/06/30
    ジャーナル フリー
    This paper describes an automatic decidable method of absolute sequence numbers of fringes that have been thought as the complicated problems in the automatic 3-dimensional measurement system with moiré topography. In the method, a system of the scanning moiré topography is constituted theoretically with two TV-cameras and a projector. By comparing with two pictures generated by two TV-cameras, the original fringe can be extracted logically in the picture. Then, absolute sequence number of original fringe becomes zero. Furthermore, with this result and the relative sequence numbers of fringes given by uphill or downhill judgement, the absolute sequence numbers of fringes can be determined automatically with regard to every fringe. The results show that the method is useful for the complex configuration. It may be concluded that the method accelerates the progress of the automatic 3-dimensional measurement system with moiré topography.
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