Computer Science
Scientific paper
Aug 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008spie.7010e.135c&link_type=abstract
Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter. Edited by Oschmann, Jacobus M., Jr.; de Graauw, M
Computer Science
Scientific paper
The H-alpha and White Light Telescope (HWT), one of the five payloads on board the Space Solar Telescope (SST), is mainly for the observation of the chromosphere, solar flares and white light of the full solar disc, also as a location reference for the detailed Main Optical Telescope (MOT). The HWT prototype experiment, structure analysis and modal testing are discussed. The HWT alignment is addressed. The result of interferometric tests is presented. In order to realize the mechanical characteristics of Hα and white light telescope (HWT), the analytical model of HWT is set up by using the finite element analysis software MSC.PATRAN/NASTRAN, and the first several orders of natural frequencies and modal shapes are calculated with eigenvectors method. Based on modal experiment with free hanging, single input / multi-output methods, the modal parameters of HWT are identified. The maximum relative error between the experiment results and the calculated results is 6.4%, and the vibration shapes of experiment are similar to ones of calculation. The vibration environmental simulation test is accomplished to check the HWT structural strength.
Chen Zhiyuan
Xue Junsun
Yang Shimo
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