• 과학과기술
• /
• 제35권2호통권393호
• /
• pp.88-89
• /
• 2002

• 베이커리
• /
• 5호통권370호
• /
• pp.102-103
• /
• 1999

• 한국통신학회:학술대회논문집
• /
• 한국통신학회 1991년도 춘계종합학술발표회논문집
• /
• pp.96-101
• /
• 1991

• 지반과기술
• /
• 제4권2호
• /
• pp.85-90
• /
• 2007

• Journal of Welding and Joining
• /
• 제16권4호
• /
• pp.9-18
• /
• 1998

• 베이커리
• /
• 5호통권346호
• /
• pp.161-161
• /
• 1997

• 지열에너지저널
• /
• 제7권2호
• /
• pp.4-10
• /
• 2011

• 대한기계학회논문집A
• /
• 제28권12호
• /
• pp.1845-1855
• /
• 2004

This paper presents the forward kinematics of the Casing Oscillator that is a construction machine. The Structure of the Casing Oscillator is similar to those of 4 degree-of-freedom mechanisms with a redundancy. With analytical (geometrical) methods, the solutions of the forward position kinematics problem are significantly found by both solving an 8$^{th}$ -order polynomial equation in one unknown variable and using one over-constraint geometrical equation which can be derived under the condition of a redundancy. The proposed forward kinematics has closed-form solutions and allows Auto-Balancing control of the moving platform in real time. Numerical examples are presented and the results are verified by an inverse kinematics analysis.

• 대한기계학회:학술대회논문집
• /
• 대한기계학회 2001년도 춘계학술대회논문집E
• /
• pp.807-812
• /
• 2001

The effects of casing shapes on the interaction of the impeller and volute in a small-size turbo-compressor are investigated. Numerical analysis is conducted for the compressor with circular and single volute casings from inlet to discharge nozzle. In order to predict the flow pattern inside the entire impeller, vaneless diffuser, and casing, calculations with a multiple frame of reference method between the rotating and stationery parts of the domain are carried out. For incompressible turbulent flow fields, the continuity and three-dimensional time-averaged Navier-Stokes equations are employed. To predict the performance of two types of casings, the static pressure and loss coefficients are obtained with various flow rates. Also, static pressure distributions around casings are studied for different casing shapes, which are very important to predict the distribution of radial load.

• Journal of Advanced Marine Engineering and Technology
• /
• 제29권5호
• /
• pp.571-578
• /
• 2005

Stresses of main stop valve and control valve casings for the steam turbines of power plants are analyzed by the finite element method. The stress intensity is obtained to check the results on the basis of the design criteria of ASME boiler and pressure vessel code. To verify accuracy of the finite element analysis. analyzed stresses are compared with those measured during the hydrostatic pressure test. Stress category drawings. which play an important role in evaluating casting defects, are produced from the analysis results, and important points in casting of the valve casings are discussed in terms of the stress category.