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한국기계기술학회지 [Journal of the Korean Society of Mechanical Technology]

간행물 정보
  • 자료유형
    학술지
  • 발행기관
    한국기계기술학회 [Korean Society of Mechanical Technology]
  • ISSN
    1229-604X
  • EISSN
    2508-3805
  • 간기
    격월간
  • 수록기간
    1999~2018
  • 등재여부
    KCI 등재
  • 주제분류
    공학 > 기계공학
  • 십진분류
    KDC 550 DDC 621
제14권 제1호 (12건)
No

학술연구

1

소음 검사를 통한 에어컨의 자기음 검출 및 진단

김정현

한국기계기술학회 한국기계기술학회지 제14권 제1호 2012.03 pp.1-5

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This paper presents the detection and diagnosis of air-conditioner electromagnetic sound through noise measurements. Electromagnetic sound originating from the motor is an unpleasant source of unwanted noise that should be detected at the manufacturing stage. A detection system using sound measurements was built and a detection algorithm based on FFT analysis is presented. Sound measurements are preferable over direct vibration measurement because it is non-contact and low cost. Experimental results show that our sound measurement system can detect electromagnetic sound effectively compared to using vibration measurements.

4,000원

2

Cross Hinge 구조를 이용한 나노 정밀 압전 소자 모션 스테이지의 설계

김정현

한국기계기술학회 한국기계기술학회지 제14권 제1호 2012.03 pp.7-11

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This paper presents the design and simulation results of a piezo-driven motion stage that employs a novel cross hinge structure that is more efficient and flexible than previous designs. The newly designed motion stage enables close to nanometer-precision motion control with ranges up to 1.6mm. Simulation results show the effectiveness of the novel hinge structures and the performance of the proposed design.

4,000원

3

채터링 방지를 위한 의료용 커터의 개발

안영명, 이창훈

한국기계기술학회 한국기계기술학회지 제14권 제1호 2012.03 pp.13-20

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The main milling cutter used for typical arthroplastic surgery robot, ROBODC system is 7.8 mm milling cutter. this cutter was used in case of traditional total knee arthroplasty, but 7.8mm milling cutter is not appropriate for newest surgical technique, MIS(minimally invasive Surgery). Generally, cutting method for MIS is tunnel cutting and cutter of cantilever type and small diameter is must be developed for MIS. Generally, Main problem of cutting system is chattering due to vibration of cutter by rotation and numerical analysis using finite element method was used for identifying chattering problems in this study. shaft length, cutter length, diameter and so on were proposed by axis displacement, stress, strain analysis through numerical analysis.

4,000원

4

작용응력과 비틀림 피로한도 비교에 의한 카트 프레임 강의 비틀림 변형특성 분석

안종성, 유충준

한국기계기술학회 한국기계기술학회지 제14권 제1호 2012.03 pp.21-30

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A kart is a vehicle without the suspension system and the differential gear. The kart frame as an elastic body plays the role of a spring. By the cornering of a kart, rolling, pitching and twisting motions are induced in the kart frame. Also the slip or noncontact of the wheel and a permanent deformation of the kart frame can be induced. In order to examine closely this phenomenon of the twisting deformation, measurement and analysis on torsion working stress with strain gage and tracking system are needed. According to the measurement result, while steady state driving in a curve in general the torsion working stress of the kart frame will be increased depending on the vehicle velocity, but the kart frame will be not permanent deformed. However, analysis of the torsion working stress in comparison with torsion fatigue limit shows that while unsteady state driving as clash with same drive condition the racing kart frame will be deformed more quickly as the leisure kart frame.

4,000원

5

상용 덕트 내에서의 Dilatant 유체를 이용한 압력강하 및 열전달 예측

이동렬

한국기계기술학회 한국기계기술학회지 제14권 제1호 2012.03 pp.31-36

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이 글의 목표는 양한 시기 대표적인 황로학 저작인 『회남자』의 우주생성론을 고찰하는 것이다. 우주생성론은 우주만물의 기원과 그 기원으로부터 만물로의 전변과정 및 구체적 사물의 궁극적 근거 에 대한 물음을 통해 구성된다. 『회남자』는 선진시기 노장철학, 전 국중기로부터 발전된 기론과 음양오행 사상, 그리고 양한시기 자연 과학의 성과 등을 적극적으로 계승하여 양한 시기 우주생성론을 대 표하는 논의를 마련한다. 지금까지 『회남자』 우주생성론에 대한 이 해는『회남자』 텍스트를 ‘잡가’로 규정하여 일관된 이론체계가 결 여되었다고 보거나, 우주생성론 체계를 구성하는 ‘도’, ‘기’의 개념 을 어떻게 이해하고 관계시키는가에 따라 다양한 관점이 제기되었 다. 특히 세계의 본질인 기가 자기원인적으로 세계 만물을 구성한 다는 ‘기일원론’과 최초의 원질 혹은 궁극적 실재로의 도가 자기분 화를 통해[道卽氣] 혹은 기를 파생하여[道生氣] 우주만물을 구성한 다는 관점이 크게 부각되었다. 그렇다면 이러한 관점이 『회남자』의 우주생성론을 온전히 이해하는 방식인가? ‘도’ ‘기’ 개념의 함의를 어떻게 이해하고 양자의 관계를 어떻게 규정해야 하는가? 『회남자』는 기본적으로 태초의 혼돈 미분의 기 덩어리 상태에서 우주만물이 구성된다는 입장을 견지한다. 혼돈 미분의 기 덩어리 는 ‘태소=허확=일’이라 규정되고, 이로부터 단계별로 우주와 음양 이기가 생성되고 최종적으로 만물을 형성한다. 그런데 이 과정에 서 『노자』의 ‘도가 일을 낳는다[道生一]’를 ‘도는 허확에서 시작된 다[道始于虛霩]’, ‘도는 일에서 시작된다[道始於一]’라고 해석하여, ‘도’ 개념은 생성과정에 직접 참여하지 않지만 그 과정을 이끄는 궁극적 원리로 이해한다. 따라서 생성의 근본 원리는 도는 우주만 물을 구성하는 최초의 원질 상태에서 그 생성작용을 펼치기 시작 하고, 구체적 생성과정은 음양이기의 상호작용을 통해 진행된다. 결국 『회남자』의 우주생성론은 궁극적 실재인 도를 중심으로 하는 ‘기화우주론’으로 규정되며, 이러한 논의는 이후 ‘기일원론’과 도 교의 자연관 및 기 철학 형성에 큰 영향을 미친다.
本論文, 旨在要通過考察兩漢時期黃老學代表著作『淮南子』, 探討宇宙生成論的基本含義。宇宙生成論就探討如下幾個問題: 宇宙萬物之根源, 其根源如何發展到具體萬物, 天下萬物之最終根源是如何規定『淮南子』繼承了先秦時期老莊哲學思想、氣論和陰陽五行思想及兩漢時期所發展的自然科學之成果, 而使之適應於自己宇宙論體系之需要。.今爲止, 大多學者從以下方面起規定『淮南子』的宇宙生成論: 有些學者把『淮南子』規定爲‘雜家’而其理論體系最終落到於自相矛盾; .一些學者都從‘道’‘氣’.念的含義和兩者之間的關系問題出發, 建立起了其宇宙生成論的理解方式。從道氣兩個.念之間的關系問題上, 就發生了‘氣一元論’和‘以道爲主的自然觀’而再分爲‘道.氣’或‘道生氣’的觀點。那., 如何解釋『淮南子』所論的宇宙生成論才接近於其.正的含義? 筆者認爲,『淮南子』基本上堅持了宇宙萬物始於整體(‘一氣’)的立場。『淮南子』就把這種整體稱爲‘太昭=虛.=一’, 而從這個狀態起發生了‘陰陽二氣’的分化而最終形成了天地萬物。但在這個過程上, 我們必須解釋宇宙生成的動力是什., 因而『淮南子』提到了 ‘道始于虛.’、‘道始於一’的觀點。.是說, 道沒有直接參與於萬物生成過程, 而道就是所引起各個生成過程的基本動力, 所以『淮南子』把‘道’理解爲宇宙萬物的最終本原。如此, ..淮南子..就把‘道’和 ‘氣’綜合起來, 最終建立了‘以道爲本’的氣化宇宙論。對於向後中國哲學思想裏所發展的宇宙論體系, 『淮南子』的宇宙生成論.生了重大的影響。

4,000원

6

특장차량 유압시스템의 오일온도 제어특성 분석

최유현, 이상호

한국기계기술학회 한국기계기술학회지 제14권 제1호 2012.03 pp.37-43

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Experimental analysis has been carried out to investigate oil temperature control characteristics of the hydraulic system in a special vehicle. Hydraulic system performance is largely affected by oil temperature, and there are considerable malfunctions in the system for high temperature conditions caused by heavy load and continuous operation. Oil pressure in the hydraulic system decreases with oil temperature, and its variation rate becomes less steep as oil temperature increases. There is severe time delay for oil temperature control due to the operation of heat exchanger system, and it depends on the oil flow rate and pressure in the system. These results in this study can be applied to the design of automatic thermal control system in the special vehicle hydraulic system.

4,000원

7

이동로봇의 동시적 위치추정 및 지도작성을 위한 초음파 데이터를 사용한 SP 모델의 효과적 활용

이세진, 이경민

한국기계기술학회 한국기계기술학회지 제14권 제1호 2012.03 pp.45-52

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This paper shows how effectively sonar data can be worked with approaches suggested for the indoor SLAM (Simultaneous Localization And Mapping). A sonar sensor occasionally provides wrong distance range due to the wide beam width and the specular reflection phenomenon. To overcome weak points enough to use for the SLAM, several approaches are proposed. First, distance ranges acquired from the same object have been stored by using the FPA (Footprint-association) model, which associates two sonar footprints into a hypothesized circle frame. Using the Least Squares method, a line feature is extracted from the data stored through the FPA model. By using raw sonar data together with the extracted features as observations, the visibility for landmarks can be improved, and the SLAM performance can be stabilized. Additionally, the SP (Symmetries and Perturbations) model, a representation of uncertain geometric information that combines the probability theory and the theory of symmetries, is applied in this paper. The proposed methods have been tested in a real home environment with a mobile robot.

4,000원

8

오토바이 형상에 따른 공기의 유동해석

조재웅

한국기계기술학회 한국기계기술학회지 제14권 제1호 2012.03 pp.53-59

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In this study, 3 kinds of motorbike models in common use are studied by flow analysis. The maximum velocity becomes 20 to 21 m/s at the upper part of models and the maximum air pressure resistances becomes 202 to 229 Pa at the front of models. Model 3 becomes the most uniform flow and model 1 becomes the most nonuniform flow among 3 models. In case of outlet planes on flow models, model 3 has the smallest velocity as maximum velocity of 17.49 m/s among 3 models. Model 3 has also the smallest velocity in case of middle planes on flow models. As model 3 has the most uniform air flow stream and the least air resistance than model 1 or 2, it can be thought to cut down on the power consumption.

4,000원

9

오일젯 갤러리가 피스톤 열부하에 미치는 영향에 관한 연구

천동준, 지창헌

한국기계기술학회 한국기계기술학회지 제14권 제1호 2012.03 pp.61-68

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High power and high efficiency has been required in internal combustion engine. Accordingly, the thermal load deformation, thermal stress and temperature on piston become higher at newly developed engines. To investigate the cooling effect of piston, a few types of piston design is presented and finite element method is carried out to analysis the heat transfer and the thermal stress. The piston which has upwards shifted cooling gallery is also analyzed to investigate the thermal load effect of oil jet cooling.

4,000원

생산기술

10

안경 금속 부품의 최적 연삭 작업조건에 관한 연구

윤태혁

한국기계기술학회 한국기계기술학회지 제14권 제1호 2012.03 pp.69-76

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The purpose of this paper is to provide the optimal grinding conditions of metal components of a spectacles. The main elements of grinding conditions are composed of grain size, grade, structure, grinding wheel velocity and shifting components velocity. The conditions are co- related and influenced at each other. The precision of grinding surface was controled the each grinding conditions, mutual relations and reciprocal actions. It was studied the co-relations of grinding conditions those machining time-grain size-roughness, grade-roughness, machining time-characteristics of structure- roughness, number of production-roughnessgrinding wheel velocity, number of production-shifting velocity-grinding wheel velocity. The optimal grinding working condition satisfied the demanded surface accuracy 0.5 ~ 1.5μm. Based on these results, the optimal conditions were that the grain size was 60, the grade was middle of HIJK and LMNO, wheel velocity was 25 m/sec, shifting velocity was 15 m/min.

4,000원

11

광케이블 선로를 위한 안정화 광원개발

윤중현, 김원배, 조명현

한국기계기술학회 한국기계기술학회지 제14권 제1호 2012.03 pp.77-84

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This study focuses on the realization of Fiber-Optic network's stabilization light source which is increasingly necessary according to the construction of the current high speed communication network. The stabilization light source is being used as an optical source in constructing the various Fiber-Optic networks, and developing the communication parts. And the light source consists of LED(light emitting diode) and Laser(light amplification by stimulated emission of radiation). LED has some merits, which are cheap and easy to treat, however the output is comparably small. And LED has some restrictions for transmitting the long distance because of broad line width. However, Laser, which has narrow line width and high output, is being used for transmitting the long distance and for the various LED and systems. This study develops the light source using Laser which is essential for the construction of communication networks as well as for the production and inspection of the communication parts. Considering for the portable, the stabilization light source, is developed light and easy to use, which has a structure using a small battery. As a result of an evaluation for the developed parts this study comes to know that an outstanding characteristic was realized because an accidental error occurred within ± 0.1[dB] not only in the characteristic of the initial motion but also in the 10 hour long operation. built-in.

4,000원

 
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