• Proceedings of the Korean Society of Precision Engineering Conference
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• 2007.11a
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• pp.507-508
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• 2007

• Tribology and Lubricants
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• v.2 no.1
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• pp.69-77
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• 1986

The motion of journal in a bearing is considered separately as rotation and translation, and then the equations of motion are derived. The bearing load capacities for these motions are calculated from the lubrication theory. The numeric integration of the equations of motion gives various journal orbit depending on force cycles and bearing parameters.

• Proceedings of the Korea Society of Design Studies Conference
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• 2004.05a
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• pp.146-147
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• 2004

• Proceedings of the Computational Structural Engineering Institute Conference
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• 1991.10a
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• pp.43-48
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• 1991

In this paper the liquid sloshing effects in rectangular liquid stroage structures under earthquake loadings are studied. The study focuses on the investigation of the effect of the flexibility of the stroage wall. The storage structure is modelled using beam elements. The motion of the liquid is expressed by the Laplace equation. The equation of motion is formulated including the coupling between the wall motion and the sloshing motion. Seismic analyses have been carried out utilizing the response spectra method.

• Journal of the Korean Data and Information Science Society
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• v.7 no.1
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• pp.69-78
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• 1996

Consider a natural model for stochastic flow systems is Brownian motion, which is Brownian motion on the positive real line with constant drift and constant diffusion coefficient, modified by an impenetrable reflecting barrier at $x_{0}$. In this paper, we investigate the joint distribution functions and study on the distribution of the first-passage time. Also we find out the distribution of ${\mu}-RBMPx_{0}$.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2013.05a
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• pp.393-394
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• 2013

• Proceedings of the KIPE Conference
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• 2000.07a
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• pp.641-644
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• 2000

Recently As the performance of the personal computer has been improving rapidly lots of research for the pc-based numerical computer actively progress in an easy repair maintenance and improving the performance with less cost. This paper presents the design using complex programmable logic device(CPLD). The CPU of Motion Controller that function as the real time control of the independent multi-axis motion the error-detect module and external I/O control made use of 80C196KC, In this paper The PC-NC effectively distributed to the load of NCK(numerical computer kernel) and have the advantage of high speed and precision.

• Proceedings of the Korean Society of Computer Information Conference
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• 2015.01a
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• pp.189-190
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• 2015

본 연구에서는 모션 그래픽을 이용하여 스톱 모션 텍스트 제작을 나타내었다. 스톱모션은 컴퓨터애니메이션의 한 종류로서 인형이나 찰흙 같은 소재를 이용하여 한 장면씩 정지 영상을 촬영하여 연속적으로 나타냄으로써 애니메이션으로 이용된다. 본 연구에서는 스톱모션 응용으로 텍스트 애니메이션 기법을 적용하여 텍스트 콘텐츠로 제작하여 나타내었다. 따라서 다양한 영역에서 스톱모션 활용을 할 수 있음을 나타낸다.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 1996.11a
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• pp.333-337
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• 1996

The spindle directly affects parts accuracy during machining, or work piece in machine tools. In this paper a comprehensive study is performed combined mr performance of machine tool spindle. The developed methology has been practically applied to a spindle of machine tools.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 1995.10a
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• pp.250-257
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• 1995

The properties of Tuned Liquid Damper are investigated theoretically. In this study, numerical model is a nonlinear model for a rectangular TLD under horizontal motion on the basis of the shallow water wave theory, where the damping of the liquid motion is included semianalytically. For TLD subjected to harmonic external force, the liquid motion of TLD is simulated. Analysis result is showed that liquid motion in TLD is strongli nonlinear even under small excitation.