著者

中沢 弘 和泉 隆志

出版者

一般社団法人日本機械学会

雑誌

日本機械学會論文集. C編 (ISSN:03875024)

巻号頁・発行日

vol.62, no.601, pp.3719-3724, 1996-09-25

被引用文献数

4

---

This paper deals with fundamental research on the development of human-oriented CNC machine tools which allow workers to feel pride and pleasure in making full use of their abilities in manufacturing. As a step toward realizing human-oriented CNC machine tools, we tried to extend the sense of touch of workers by developing cutting a torque feedback handle through which workers can feel the rotational resistance corresponding to cutting torque. This system has been evaluated by inexperienced and skilled workers of engine lathes and CNC machine tools using the information integration method. The results show that use of the cutting torque feedback handle greatly improves workers, satisfaction when carrying out NC lathe work.

著者

鈴森 康一

出版者

一般社団法人日本機械学会

雑誌

年次大会講演資料集

巻号頁・発行日

vol.2006, no.8, pp.188-189, 2006-09-15

著者

鳴海 圭亮 井柳 友宏 我妻 大策 廣田 雅彦 新井 史人

出版者

一般社団法人日本機械学会

雑誌

ロボティクス・メカトロニクス講演会講演概要集

巻号頁・発行日

vol.2008, pp."2P2-F14(1)"-"2P2-F14(3)", 2008-06-06

---

Development of fabrication technology made it feasible to fabricate micro order structures. Those technologies include machining, MEMS (Micro Electro Mechanical System) and laser fabrication. In micro-world, assembly becomes especially a crucial problem. We have developed an easy and fast assembly process of microparts called STAMP (Stacked Microassembly Process). In this process, three-dimensional structural object is fabricated by stacking up two-dimensional layers and micro-structures are cut apart after all the assembly is completed. Here, as an example, we have fabricated a model of stag beetle. Two-dimensional layer parts are fabricated by SU-8 photolithography and electroplating. Stacked parts are bolted together using micro-rivets.

著者

廣江 哲幸 松尾 日出男 藤原 和人 宮田 政信 松本 繁明 安部 尊之

出版者

一般社団法人日本機械学会

雑誌

日本機械学會論文集. A編 (ISSN:03875008)

巻号頁・発行日

vol.62, no.601, pp.2026-2031, 1996-09-25

被引用文献数

3

---

Spall tests for three kinds of materials (A12024, SS41, Cu) are conducted using a newly developed testing device. This experimental assembly generates triangular stress waves with various gradients-in plate specimens (50×50×20mm) by direct explosive loadings. The relationship between measured spall layer thicknesses (5-15mm)and the explosive (PETN) thicknesses indicate that a time dependence exists in spall phenomena of the metals. A computer program with a cumulative damage model was constructed, which has reproduced the basic characteristics of the observed failure in the metals. It is known that the stress wave reflected at the free surface can be prevented from reaching the specimen plate by spallation of the momentum trap or spall plate, which is mounted in contact with the specimen. The following spall test results for A12024 have verified this effect and the numerical analysis also has simulated the phenomena successfully.

著者

小林 幹人 渡邊 康人 鎧坂 勝則 村松 浩成

出版者

一般社団法人日本機械学会

雑誌

鉄道技術連合シンポジウム(J-Rail)講演論文集

巻号頁・発行日

vol.2009, no.16, pp.651-654, 2009-12-02

---

In order to reduce deformation of ballasted tracks during large earthquakes, a new method to reinforce ballasted tracks with stacked geosynthetic bags that are filled with ballast was proposed. In this study, some performance tests of geosynthetic bags method are conducted. In triaxial test, geosynthetic bags filled with ballast revealed higher strength than ballast with no bag. In cut strength test, bags made of polyethylene and polyarylate that is one of high strength fibers revealed good performance. In ultraviolet ray resistance test, geosynthetic bags revealed less than 60% loss of pull strength at 5000h irradiation of super xenon weather meter. In construction test on commercial lines, it is confirmed that the new method has good workability.

著者

武田 行生 舟橋 宏明

出版者

一般社団法人日本機械学会

雑誌

日本機械学会論文集 C編 (ISSN:03875024)

巻号頁・発行日

vol.59, no.560, pp.p1142-1147, 1993-04

被引用文献数

8

---

When all input links, except one, are fixed in a mechanism of parallel manipulator with N degrees of freedom (dof), N kinds of mechanisms with a single dof can be obtained, and pressure angles corresponding to each mechanism can be defined. In order to transmit power efficiently from input links to the output link, all of the values of cosines of the pressure angles must be as big as possible. Then, the present paper proposes a new transmission index (TI) for parallel manipulators based on the power transmitted from input links to the output link, which is defined as the minimum value of cosines of the pressure angles. For planar and spatial parallel manipulators, static force analyses are carried out, and the relationships between TI and joint forces are studied. Working spaces of parallel manipulators with consideration of motion transmissibility are also shown.

著者

中島 健 森田 進

出版者

一般社団法人日本機械学会

雑誌

日本機械学會誌 (ISSN:00214728)

巻号頁・発行日

vol.91, no.839, pp.1094-1097, 1988-10-05

著者

大澤 護 及川 和隆 河田 智太郎 松本 雅行 田代 維史

出版者

一般社団法人日本機械学会

雑誌

鉄道技術連合シンポジウム(J-Rail)講演論文集

巻号頁・発行日

vol.2000, pp.327-330, 2000-12-12

---

One of the primary aims of Digital ATP (Automatic Train Protection System) for JR's Tokyo metropolitan commuter line is to expand the transportation capacity. Traffic simulation showed strong durability of the ATP against disrupted train schedule. Basic performance is provided by assured braking and non-insulated track circuit. Furthermore, re-scheduling gives higher efficiency of recovering from disruption.

著者

小野 重亮

出版者

一般社団法人日本機械学会

雑誌

日本機械学會誌 (ISSN:00214728)

巻号頁・発行日

vol.102, no.970, pp.556-557, 1999-09-05

著者

本田 善久 松久 寛 佐藤 進

出版者

一般社団法人日本機械学会

雑誌

日本機械学會論文集. C編 (ISSN:03875024)

巻号頁・発行日

vol.60, no.579, pp.3749-3754, 1994-11-25

---

The vibration of a rotating elastic disk subjected to base excitation is theoretically analyzed. Formulation of the steady-state response to harmonic excitation is derived as an eigenfunction series where the eigenfunctions are given in the form of rotating waves. It is presented that a parallel motion to the axis excites only the axisymmetric modes. It is also shown that a tilting motion around an arbitrary diameter excites the forward and backward rotating modes whose circumferential wavenumbers are one. The Doppler's effect and the coupling effect between the inertia force and the Coriolis force are discussed. The response curves and the vibratory modes of the rotating disk are studied in detail. It is shown that the standing waves fixed in space can be formed. The relation between the excitation frequency and the configuration of the vibratory modes is also presented.

著者

西原 修 松久 寛 佐藤 進

出版者

一般社団法人日本機械学会

雑誌

日本機械学會論文集. C編 (ISSN:03875024)

巻号頁・発行日

vol.60, no.580, pp.4098-4106, 1994-12-25

---

The design optimization of passive vibration control mechanisms in the accelerance domain is discussed. In this study, the fixed points theory is developed which approximately minimizes the maximum accelerance in the frequency domain by equally adjusting the accelerance of two fixed points. This design method is applied to the dynamic vibration absorber (DVA) and the passive gyroscopic damper (PGD), and thus the maximum accelerances of these mechanisms are successfully reduced. The concept of the fixed points theory is reinvestigated. The accuracy and the degree of improvement compared with the fixed points design in the compliance domain are examined. The PGD realizes relatively higher damping effects, and then the accelerance reduction of the PGD by the new design method is considerably larger than that of the DVA with a moderate mass ratio.

著者

柏谷 久美

出版者

一般社団法人日本機械学会

雑誌

日本機械学會誌 (ISSN:00214728)

巻号頁・発行日

vol.101, no.958, pp.656-658, 1998-09-05

被引用文献数

2

著者

山田 浩也 広瀬 茂男

出版者

一般社団法人日本機械学会

雑誌

ロボティクス・メカトロニクス講演会講演概要集

巻号頁・発行日

vol.2007, pp."2A1-J07(1)"-"2A1-J07(4)", 2007-05-11

---

In this paper, we discuss about locomotion of snake-like robots on uneven terrain. In recent research some snake-like robots have been developed which have ability to advance on uneven terrain, but the control has not been established. In this paper we propose a control method using a touch sensor located on the head of robots, and verify the effectiveness of propose method by experiments. We think the result of this paper will contribute to the study to put snake-like robots to practical use.

著者

福田 収一 青嶋 隼人

出版者

一般社団法人日本機械学会

雑誌

年次大会講演論文集 : JSME annual meeting

巻号頁・発行日

vol.2005, no.4, pp.339-340, 2005-09-18

---

This paper describes a new approach in visualizing self-awareness. In particular, Habit of Speaking (HoS) is focused. In the pilot experiment of the chat system 48 kinds of HoS were extracted, and they were altogether called 'Group of HoS.' In the main experiment, all subjects evaluated HoS one by one using the Internet. Then they had to choose one from 4 kinds of Frequency; a) Many times, b) Sometimes, c) Unusual, d) Never, and one from 5 kinds of Impression; a) Best, b) Better, c) So so, d) Worse, e) Worst. Thus, all HoS were ranked by Impression and Frequency, which lead to 4 categories. This experiment demonstrates that although most subjects would like to grasp their own HoS, they felt it too difficult to grasp their HoS by themselves.

著者

山田

出版者

一般社団法人日本機械学会

雑誌

機械學會誌

巻号頁・発行日

vol.38, no.214, pp.128-129, 1935-02-01

著者

岩渕 牧男 立岩 幹雄 羽田 寿夫

出版者

一般社団法人日本機械学会

雑誌

日本機械学會論文集. B編 (ISSN:03875016)

巻号頁・発行日

vol.48, no.432, pp.1501-1508, 1982-08-25

被引用文献数

2

---

超臨界圧変圧運転ボイラでは, 火炉水管の冷却能力の面から従来スパイラリ・ワウンド形火炉構造が採用されているが, 垂直管形とすることにより本体支持構造の大幅な単純化が可能である. 本研究は, これに必要なライフル管の臨界圧近傍における伝熱特性を, 実際の超臨界圧変圧運転ボイラとほぼ同じ運転状態のもとで行われた試験結果にもとづいて述べたものである.

著者

宮原 健介 松岡 三郎 長島 伸夫 三島 周三

出版者

一般社団法人日本機械学会

雑誌

日本機械学會論文集. A編 (ISSN:03875008)

巻号頁・発行日

vol.61, no.590, pp.2321-2328, 1995-10-25

被引用文献数

13 12

---

A nanoindentation hardness apparatus was developed on the basis of an atomic force microscope to obtain both an indentation curve and an indentation image. Newly devised features were to use a lever which has a three-sided pyramidal diamond tip at the central part of the lever, to measure the vertical displacement at the center of the lever and to add an actuator for controlling the force. The ultra-microhardness values of gold, SUS403 steel and SNCM439 steel measured at the indentation forces between 2.6×10^3 and 3.5×10^3 μN using the nanoindentation hardness apparatus agreed with the macrohardness values measured at the force of 4.9 or 9.8 N using the conventional Vickers hardness apparatus. However, the ultra-microhardness increased with decreasing indentation force. This behavior was explained considering the elastic-plastic conditions of the specimens.

著者

篠原 俊夫 松浦 祐太郎

出版者

一般社団法人日本機械学会

雑誌

日本機械学會論文集. B編 (ISSN:03875016)

巻号頁・発行日

vol.46, no.406, pp.1065-1073, 1980-06-25

---

軸流タービンの内部効率向上のため,損失の大きなブレード先端部および根本部の流れについて翼列実験およびモデルタービン実験を行い,主流と損失流れとの相互関係を明らかにした.そして,翼先端および翼根本での反動度を買えた新しいフローパターンを考え,これをノズルをねじることにより実験して,従来系との比較実験を行った.その結果1%以上のタービン効率の上昇を確認した.

著者

森 美郎 林 和宏 横見 哲介

出版者

一般社団法人日本機械学会

雑誌

日本機械学會論文集 (ISSN:00290270)

巻号頁・発行日

vol.38, no.313, pp.2414-2422, 1972

被引用文献数

1

著者

鈴木 正剛

出版者

一般社団法人日本機械学会

雑誌

埼玉ブロック大会(講演会)講演論文集

巻号頁・発行日

vol.2006, no.2, pp.125-126, 2006-11-10