JOURNAL BROWSE
Search
Advanced SearchSearch Tips
A Study on the Dynamic Stability of Observation Antenna Considering Rotational Speed by Payload Drive Motor
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
A Study on the Dynamic Stability of Observation Antenna Considering Rotational Speed by Payload Drive Motor
Kim, Chae Sil; Shin, Min Jae; Keum, Chang Min; Kim, Jae Min; Choi, Hun Oh;
  PDF(new window)
 Abstract
The article describes the determination of the dynamic stability for an observation antenna, considering the rotational speed by the payload driving motor. A finite element model of the observation antenna was made using the solid and beam elements. The connecting parts between the solid and the beam was adequately coupled. The boundary conditions were made by restriction of the degree of freedoms in the supporting points. With the comparison between the modal analysis results and the rotating speed of the payload driving motor, no resonance for the structure of antenna was identified and first natural frequency was determined under 33 Hz (Seismic Cut-Off Frequency). Therefore, the dynamic stability of the antenna was confirmed by the comparism between the seismic safety criterion and the stress results of the dynamic analysis applied the loading conditions and required response spectrum (RRS).
 Keywords
Observation antenna;Dynamic stability;Seismic analysis;Modal analysis;
 Language
Korean
 Cited by
 References
1.
Jung, H. H., Cho, H. M., and Kim, C. S., "A Study on the Stability of Mast for Hoisting a Large Crane," Proc. of KSPE Autunm Conference, pp. 535-536, 2008.

2.
Kim, J.-K., Shin, S.-H., Shin, Y.-I., Song, C. K., Lee, Y.-H., et al, "Structure Analysis and Evaluation of the 300ton Goliath Crane," Proc. of the Korean Society of Mechanical Engineers of Spring Conferences, pp. 25-28, 2010.

3.
Jung, H. H., Cho, B. H., Kim, C. S., and Choi, H. O., "A Study on the Analytical Estimation of Structural Health for a Main Control Board in Nuclear Power Plant," Proc. of KSPE Spring Conference, pp. 1091-1092, 2012.