• Proceedings of the Korean Society of Precision Engineering Conference
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• 2006.10a
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• pp.595-596
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• 2006

• KIEE International Transaction on Electrical Machinery and Energy Conversion Systems
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• v.3B no.2
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• pp.79-83
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• 2003

The topology optimization for the magnet design is studied. The magnet design in the C-core actuator is investigated by using the derived topology optimization algorithm and finite element method. The design sensitivity equation for the topology optimization is derived using the adjoint variable method and the continuum approach.

• Proceedings of the Korean Magnestics Society Conference
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• 1994.03a
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• pp.92-93
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• 1994

• Proceedings of the KIEE Conference
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• 2000.07d
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• pp.2877-2879
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• 2000

본 연구에서는 로봇의 3가지 기본모델에대해 OpenGL을 이용하여 3-D 로봇시뮬레이터를 구현하였다 또한. 개발된 로봇시뮬레이터에 간단한 출력제어기를 적용하여 제어알고리즘의 특성이 잘 나타나는지를 확인하였고, 실제 로봇의 하드웨어적 특성을 적용하여 로봇시뮬레이터와 실제로봇에서의 실험결과를 비교하였다.

• Proceedings of the IEEK Conference
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• 2007.07a
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• pp.389-390
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• 2007

In this paper, we propose a modified watershed algorithm to obtain exact edge of region. The proposed method adjusts priority at zero-crossing point of gradient in order to make the point of region decision time postponed. We compare the proposed method with a previous method and prove that this method can extract more correct edge of region.

• Proceedings of the Optical Society of Korea Conference
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• 2008.07a
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• pp.411-412
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• 2008

The chromatic dispersion of the germano-silicate optical fiber incorporated with Si nanocrystals was determined with the aid of simulation and demonstrated using experiments, which showed dependence of the launched power and the pump wavelength due to optical nonlinearity of the fiber.

• Proceedings of the KIEE Conference
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• summer
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• pp.995-997
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• 2004

In this paper, CPM (controlled-permanent magnet)-type magnetic levitation system is designed and implemented. The CPM maglev system to be controlled consists of eight magnets with permanent magnet and electromagnet. The total weight of maglev module system is 1ton. The design procedure is also described and the result of this work is shown.

• Proceedings of the KIEE Conference
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• 2003.07b
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• pp.705-707
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• 2003

The design of multi-domain that considers all components of the electromagnetic systems such as air, iron, magnet, and coil is investigated using the topology optimization, interpolation method, and FEM. The design sensitivity equation for the topology optimization is derived using the adjoint variable method and the continuum approach. The proposed method is applied to the topology optimization of C-core actuator.

• Proceedings of the KIEE Conference
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• 2003.07b
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• pp.831-833
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• 2003

BLDC (Blush-Less Direct Current) motors are widely used for machine tools and ODD (Optic Disc Drive). Topology Optimization is applied to the rotor of a BLDC motor to improve in efficiency and save money. Density method and design sensitivity are derived. The result of topology optimization shows better performance.

• Proceedings of the KIEE Conference
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• 2003.07b
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• pp.741-743
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• 2003

A reliability-based topology optimization (RBTO) for electromagnetic systems using the finite element method is presented. Permeability and applied current density are considered as uncertain variable. In order to compute reliability constraints, performance measure approach is used. To find the reliability index, the limit state function is linearly approximated at each iteration. Numerical examples show the effectiveness of the proposed method.